Pretakeoff Checks

Objective

The ATP helicopter student will demonstrate mastery of pretakeoff checks by completing the approved checklist with 100% accuracy, explaining the purpose and malfunction detection methods for each item, analyzing takeoff performance data within ±50 feet of calculated distance, correctly configuring all systems and instruments, and briefing emergency procedures for abnormal takeoff situations, all while maintaining situational awareness and dividing attention appropriately inside and outside the cockpit, meeting the standards of FAA-S-ACS-ATP task AT.III.D.

Content

Regulatory Foundation

14 CFR §91.103 — Preflight action requires the pilot in command to become familiar with all available information concerning the flight, including runway lengths, takeoff and landing distance data, and alternatives available if the planned flight cannot be completed.

14 CFR §91.7 — No person may operate a civil aircraft unless it is in an airworthy condition. The pilot in command is directly responsible for determining whether the aircraft is in condition for safe flight and shall discontinue the flight when unairworthy mechanical, electrical, or structural conditions occur.

14 CFR §91.205 — Required instruments and equipment for VFR and IFR flight. ATP operations typically occur under IFR, requiring additional equipment beyond VFR minimums.

14 CFR §135.117 (if applicable) — For commercial operators, VFR/IFR helicopter surface reference requirements that affect departure planning.

Purpose of Pretakeoff Checks

Pretakeoff checks represent the final verification that all aircraft systems are operating within normal parameters before committing to flight. At the ATP level, this is not simply completing a checklist—it is a comprehensive systems validation, performance calculation verification, risk assessment, and crew coordination exercise. The pretakeoff check phase provides the last opportunity to detect anomalies, abort the flight, or reconfigure before beginning a critical phase of flight.

Unlike pre-solo students who perform checks by rote, ATP candidates must understand the why behind every item: what system is being verified, what normal indications should appear, what specific malfunctions this check detects, and what corrective action is required if parameters are abnormal.

Pretakeoff Checklist Philosophy

Challenge-Do-Response methodology: One pilot challenges, the other performs and responds. In single-pilot operations (common in ATP helicopters), the pilot verbalizes each item aloud to maintain discipline and ensure nothing is missed.

Flow patterns then checklist verification: Experienced pilots develop systematic flow patterns (left to right, top to bottom, engine instruments to flight instruments) followed by checklist confirmation to catch omissions.

Checklist is manufacturer-specific: This lesson plan teaches the process of pretakeoff checks. The actual checklist items vary significantly between a Bell 206, AS350, Bell 407, or Robinson R66. The instructor must use the FAA-approved Rotorcraft Flight Manual (RFM) checklist for the specific aircraft being flown.

System Categories and Key Teaching Points

Engine and Drivetrain Systems

• Rotor RPM verification: Confirm NR (main rotor RPM) is in the green arc at idle or flight setting as appropriate. For turbine helicopters, confirm N1 (gas producer) and N2 (power turbine) relationship is correct. Out-of-limits RPM causes rapid damage and potential catastrophic failure.
• Engine instruments: Oil pressure, oil temperature, transmission oil pressure/temperature, MGT/TGT/ITT (depending on engine type), fuel flow. Understand normal ranges vary with power setting and OAT.
• Governors and correlators: Verify engine and rotor governor operation. Understand that governor failure creates significant workload increase and may preclude certain maneuvers.
• Detection method: Any instrument reading outside green arc or manufacturer limits, unusual sounds, vibrations, or cockpit indications signal potential malfunction.

Hydraulic Systems

• Hydraulic pressure: Verify adequate pressure (typically 500-1500 PSI depending on aircraft). Low pressure results in heavy control forces potentially exceeding single-pilot capability.
• Backup systems: Many turbine helicopters have dual hydraulic systems. Understand failure indications and control force increases with one or both systems inoperative.
• Detection: Hydraulic caution lights, abnormal pressure indications, unusual control force feedback during cyclic/collective/pedal check.

Electrical Systems

• Battery and alternator/generator: Verify proper voltage and current load. Understand electrical system architecture (28V DC typical in helicopters, some have inverters for AC equipment).
• Loadmeter/ammeter: Confirm electrical load is within normal limits. Excessive load may indicate failing component or ground power still connected.
• Avionics cooling: Ensure avionics cooling fan operation if so equipped, especially critical for IFR-certified GPS/FMS equipment.
• Detection: Low voltage, discharge indication, avionics malfunctions, burning smell, circuit breaker trips.

Flight Control Systems

• Full range of motion: Cyclic, collective, and pedals through complete travel with no binding, unusual resistance, or loose connections.
• Control friction adjustments: Set appropriate for conditions—tighter for turbulence, looser for smooth air precision work.
• Swashplate and linkage: During control sweep, verify no unusual sounds, vibrations, or restrictions.
• Detection: Binding, grinding, inability to reach full travel, play in controls, visual observation of linkage interference.

Flight Instruments

• Attitude indicator: Erect, properly representing helicopter attitude, no abnormal drift or precession.
• Heading indicator/HSI: Set to magnetic compass within ±3°, accounting for compass deviation card and local variation.
• Altimeter: Set to current field elevation or altimeter setting, within ±75 feet of known elevation.
• Airspeed indicator: Reading zero ±5 knots at rest with pitot heat on if required.
• Vertical speed indicator: Reading zero or slight indication at rest.
• Turn coordinator: Wings level, ball centered with helicopter at rest.
• Magnetic compass: Fluid full, card free to swing, deviation card present, reads within expected heading.
• G3000/G5/Aspen/Garmin glass displays: Verify all displays alive, no red X’s, declutter settings appropriate, map orientation selected, nearest airport page reviewed.
• Standby instruments: Verify operation of backup attitude indicator, altimeter, airspeed in case of primary system failure.
• Detection: Any instrument not indicating properly, red flags, OFF flags, unusual indications, failure to respond to control inputs.

Navigation and Communication Equipment

• Navigation radios: Proper frequencies loaded, GPS flight plan active, navigation source selected (GPS/VOR), autopilot navigation source confirmed.
• Communication radios: Correct tower/departure frequencies set and identified, ATIS/AWOS information current, transponder code entered and mode set.
• Autopilot: Mode selected appropriate for departure (heading mode common initially), flight director on and providing correct guidance, altitude preselect set to initial assigned altitude, trim set to minimize autopilot workload.
• FMS/GPS: Active flight plan reviewed, departure procedure loaded if applicable, direct-to airport backup confirmed, RAIM prediction checked for IFR.
• Audio panel: Correct radio selected for transmit, intercom operational, headset/speaker selections appropriate.
• Detection: Wrong frequencies, inability to identify NAVAIDs, GPS RAIM warning, autopilot erratic operation, communication difficulty.

Environmental Systems

• Pitot heat: On if in visible moisture or temperature ≤5°C, indicator light confirms operation.
• Anti-ice/de-ice: If equipped and required by conditions, verify operation and understand limitations—most light helicopters are not certified for flight into known icing.
• Cabin heat/ventilation: Set for comfort, defrost operational for windscreen clarity.
• Detection: Frozen pitot tube (erratic airspeed), ice accumulation on airframe, fogged windscreen affecting visibility.

Fuel System

• Fuel quantity: Verify gauges match expected fuel load from refueling, crosscheck with dipstick/visual inspection. Understand gauge accuracy limitations—many helicopter fuel gauges are notoriously inaccurate.
• Fuel selector: Positioned correctly per checklist (many helicopters have left/right/both positions).
• Fuel pressure: Within normal limits for engine operation.
• Fuel boost pumps: On if required for takeoff (turbine helicopters typically have boost pumps for high-altitude/engine start).
• Detection: Fuel quantity mismatch, low fuel pressure, engine sputtering, fuel smell indicating leak.

Doors, Windows, Cargo

• Doors: Confirm all doors properly closed and latched. Understand that an open door creates asymmetric drag, unusual vibration, and potential FOD (foreign object damage) if items exit the aircraft.
• Cargo: Secured properly, weight and CG verified, no loose items that could interfere with controls.
• Seat belts and shoulder harnesses: Pilot and all passengers secured, explained how to release, briefed on expectations.
• Collective friction: Set appropriately to prevent uncommanded collective movement in turbulence.

Malfunction Detection and Corrective Action

For each checklist item, the ATP candidate must know:

1. What is normal: Specific values, colors, ranges, sounds, and indications
2. What indicates malfunction: Specific abnormal readings, unusual sounds, vibrations, smells, or visual cues
3. Immediate corrective action: Shutdown, switch to backup system, consult abnormal checklist, abort takeoff
4. Decision criteria: Is this a no-go item, can flight continue with limitations, is maintenance required before next flight?

Examples of Common Malfunctions Detected During Pretakeoff Checks:

• Low rotor RPM at idle: Possible governor malfunction, correlator issue, or engine not developing proper power—verify throttle position, governor switch on, engine instruments normal. If uncorrectable, shut down and troubleshoot.
• Hydraulic pressure low: Check hydraulic quantity, look for leaks, verify pump operation. If pressure does not build, do not attempt flight—control forces may be unmanageable.
• Alternator not charging: Check master switch on, circuit breakers in, alternator switch on. If no charge indication, flight may continue VFR day with reduced electrical load and plan for landing before battery depletion. IFR or night operations not recommended.
• Attitude indicator tumbled or precessing: If vacuum/pressure-driven, check vacuum pressure. If AHRS/solid-state, cycle avionics master. If uncorrectable in IMC conditions, flight cannot continue IFR.
• Binding in flight controls: Abort pretakeoff checks immediately. Investigate for control lock still installed, cargo interference, linkage obstruction, or maintenance issue. Do not attempt flight.
• Fuel quantity discrepancy: Recheck fuel load visually, calculate expected burn from previous flight. If gauge shows significantly less than expected, suspect fuel leak—inspect aircraft and do not fly until resolved.

Takeoff Performance Analysis (Critical ATP Skill)

At ATP level, takeoff performance calculation is not optional—it is mandatory and must be precise. The pilot must determine whether the helicopter can safely depart from the available surface area under current conditions.

Performance Factors:

1. Pressure altitude: Field elevation corrected for altimeter setting. Calculate using: PA = Field Elevation + (29.92 - Altimeter Setting) × 1000
2. Density altitude: Pressure altitude corrected for temperature. High density altitude severely degrades helicopter performance—use Koch chart or performance computer.
3. Temperature: Higher temperatures reduce air density and engine power output (turbine engines lose approximately 1% power per 5°F above standard).
4. Gross weight: Heavier weight requires more power, increases takeoff distance, reduces climb performance. Many helicopters have reduced weight limits at high density altitude.
5. Wind: Headwind reduces takeoff distance and improves climb; tailwind increases distance and degrades climb. Crosswind may limit operations depending on helicopter and pilot proficiency.
6. Surface conditions: Smooth pavement provides best performance; soft surfaces, grass, gravel, or confined areas degrade performance and increase required power.
7. Departure routing: Obstacles in departure path may require steeper climb gradient than performance charts indicate helicopter can achieve.

Performance Chart Usage:

• Use helicopter-specific RFM performance charts—do not estimate or use “similar” aircraft data
• Interpolate between chart values when conditions fall between published data points
• Apply all applicable notes and limitations printed on charts
• Conservative interpretation: round up density altitude, round up weight, round down headwind component
• Understand that performance charts assume new aircraft, new engine, and proficient pilot—add safety margins for older aircraft or rusty skills
• Some helicopters have torque/MGT limits that further restrict operations beyond gross weight limits

Decision Criteria:

• HOGE (Hover Out of Ground Effect) capability: Can the helicopter hover at departure altitude/temperature/weight? If not, running takeoff required with adequate distance.
• Climb gradient required: Can the helicopter achieve obstacle clearance? Calculate required gradient: (Obstacle Height ÷ Distance to Obstacle) × 100. Compare to RFM climb performance.
• Abort capability: If running takeoff required, is there adequate distance to reject takeoff if engine failure occurs before translational lift?
• Go/No-Go decision: If performance margins are insufficient, reduce weight (fuel or payload), wait for cooler temperatures, or delay flight until conditions improve.

ATP Standard: Performance calculations must be accurate within ±50 feet of published data, accounting for all factors. Erring on the side of safety is expected—an ATP pilot who attempts flight beyond performance capabilities demonstrates poor judgment.

Emergency and Abnormal Procedures Briefing

Before every takeoff, the ATP pilot must mentally prepare for potential emergencies during the critical takeoff phase. This is especially important in single-pilot operations where no copilot provides backup.

Critical Decision Points:

• Below translational lift speeds: If engine failure occurs, immediately lower collective and enter autorotation. Minimal altitude means minimal options—controlled landing within available area is priority.
• During transition to forward flight: Maintain aircraft control, lower collective, establish autorotation attitude and airspeed. Be aware of takeoff direction and potential landing areas ahead.
• After departure but low altitude: Depending on altitude and airspeed, decision must be made whether to land immediately or attempt to reach suitable landing area. Brief specific decision altitude (e.g., “Below 300 feet AGL, I land immediately ahead; above 300 feet I can turn to reach airport”).

Specific Abnormal Situations:

• Engine failure on takeoff: Immediate collective down, maintain rotor RPM, establish autorotation, land in most suitable area considering wind and obstacles.
• Low rotor RPM on takeoff: Immediately lower collective to regain rotor RPM. If RPM does not recover, enter autorotation and land. Never sacrifice rotor RPM to maintain altitude.
• Tail rotor failure on takeoff: Requires immediate autorotation and running landing into the wind if possible. In helicopters with fenestron or NOTAR, characteristics differ—know aircraft-specific procedures.
• Hydraulic failure on takeoff: Significant control force increase. Reduce airspeed to minimize control forces, land as soon as practicable. Some helicopters prohibit continued flight with hydraulic failure.
• Smoke or fire on takeoff: Throttle to idle, land immediately, execute emergency shutdown, evacuate. Fire is time-critical—do not delay landing to return to airport.
• Door opening on takeoff: Maintain aircraft control (door creates asymmetric drag and vibration), reduce airspeed, return and land to secure door. Brief passengers pre-flight to avoid attempting to close door in flight.
• Instrument failure IMC departure: If critical instrument fails (attitude indicator most common), immediately transition to partial panel scan, consider executing missed approach if already airborne, declare emergency and request vectors.

Crew Resource Management (CRM) Considerations:

• Sterile cockpit: Below 500 feet AGL or during critical phases, limit communications to essential items only—no training discussions, non-essential ATC calls, or passenger interaction.
• Callouts: In multi-pilot operations, clear role assignment (pilot flying/pilot monitoring) and standardized callouts (“Airspeed alive,” “Positive rate,” “NR in limits”).
• Passenger brief: Ensure passengers understand emergency egress, not to touch controls, when to expect radio silence, and what to do if smoke/fire occurs.
• ATC coordination: If emergency occurs on IFR departure, immediate radio call “N123AB declaring emergency” establishes priority handling. Time permitting, provide souls on board, fuel remaining, nature of emergency.

Division of Attention

ATP-level situational awareness requires continuous division of attention between:

Inside cockpit: Systems monitoring, instruments, checklist progress Outside cockpit: Traffic scanning, obstacle awareness, weather observation, surface condition evaluation

Technique: Use systematic scan patterns—5-second intervals maximum on any single instrument, regular traffic scans in pattern direction and departure path, listen to CTAF/tower for traffic position reports while completing checks.

Common error: Fixation on checklist or single instrument while ignoring traffic or developing weather. ATP pilots maintain big-picture awareness while accomplishing detailed tasks.

Checklist Discipline

Read-do: Read each item, perform the action, verify completion before proceeding. Never skip items or perform from memory without checklist confirmation.

Interruptions: If interrupted during checklist (ATC call, passenger question, traffic alert), note the last completed item and restart from that point—do not assume you remember where you were.

Modifications: Never modify manufacturer’s checklist without proper authorization. If aircraft has STC modifications or optional equipment, ensure checklist reflects actual configuration.

Completion verification: At checklist completion, verify all systems in normal operating range, all required items addressed, aircraft configured correctly for departure type (VFR/IFR, towered/non-towered, VMC/IMC).

ATC Clearance Interpretation

For IFR operations, obtaining and correctly interpreting the takeoff/departure clearance is the final pretakeoff action.

Clearance components:

• Cleared to: Destination airport
• Departure procedure: SID name/number, vector heading, or “fly runway heading”
• Altitude: Initial altitude assignment and expect-further-clearance altitude
• Frequency: Departure control frequency
• Squawk: Transponder code
• Special instructions: Any speed restrictions, turn restrictions, or hold-for-release requirements

Correct readback: ATP standard requires reading back all altitude assignments, heading assignments, runway assignments, and hold-short instructions verbatim. Acknowledge all other instructions.

Clarification: If any portion of clearance is unclear, request clarification before accepting. Never depart with ambiguous clearance.

Void time awareness: If operating from non-towered airport, release time and void time are critical. Departure must occur within specified window or new clearance is required.

Schedule

Equipment

Required Aircraft and Materials

• Turbine helicopter with current airworthiness certificate and all required equipment per 14 CFR §91.205
• FAA-approved Rotorcraft Flight Manual (RFM) for specific aircraft, including:
  • Normal procedures checklist
  • Emergency/abnormal procedures section
  • Performance charts (HOGE, takeoff distance, climb performance)
  • Weight and balance data
  • Systems description section
• Current aeronautical charts for local area (sectional or terminal area chart)
• Current Chart Supplement (A/FD) for departure airport
• IFR departure procedures (SIDs) if applicable to training airport
• Fuel receipt or log showing current fuel load
• Aircraft maintenance logbooks (for airworthiness demonstration)

Reference Materials

• FAA-H-8083-21B, Helicopter Flying Handbook, Chapter 9 (Helicopter Emergencies and Hazards) and Chapter 10 (Aeronautical Decision Making)
• FAA-S-ACS-ATP, ATP Helicopter Airman Certification Standards, Area of Operation III, Task D
• FAA-H-8083-9B, Aviation Instructor’s Handbook, Chapter 10 (Teaching Practical Risk Management)
• 14 CFR Parts 61, 91, and 135 (as applicable)
• FAA-AC 61-107B, Aircraft Operations at Altitudes Above 25,000 Feet MSL or Mach Numbers Greater Than .75 (high-altitude operations section)
• Aircraft manufacturer’s pilot operating handbook (POH) or RFM for specific helicopter type

Training Aids and Tools

• Cockpit diagram or poster identifying all instruments and switches
• Laminated checklist cards if aircraft-specific format available
• Density altitude calculator or electronic flight computer (E6B)
• Sample ATC clearances printed for practice
• Whiteboard or kneeboard for performance calculations
• GoPro or cockpit camera for recording student performance (optional, for debrief)
• Abnormal indications reference card showing out-of-limits instrument readings

Instructor Actions

1. Begin the lesson by asking the student, “What is the actual purpose of pretakeoff checks at your level of experience?” Listen for understanding that this is final systems validation, not rote checklist completion. Emphasize that ATP standards require knowing the why behind every item, not just the what.

2. Discuss 14 CFR §91.7 and emphasize that the ATP pilot is directly responsible for determining airworthiness. State clearly: “If you find something wrong during pretakeoff checks, the flight does not happen until it’s fixed. There is no pressure from passengers, schedule, or weather that overrides your authority to say ‘not safe.’”

3. Review the aircraft-specific RFM checklist and explain the systematic flow pattern used for this helicopter type. Demonstrate the physical scan: where eyes go, what hand does what, how to avoid missing items. Say, “Watch my scan pattern—I’m not randomly looking around, I’m following a deliberate left-to-right, top-to-bottom flow, then I verify with the checklist.”

4. Select three critical systems (engine instruments, hydraulics, flight controls) and explain in detail: normal indications, what specific numbers or colors are expected, what malfunctions this check detects, and what corrective action is required. For example: “Oil pressure should be 30-90 PSI on this helicopter. Below 30 indicates failing oil pump or massive leak—immediate shutdown required. Above 90 indicates blocked oil passage—also immediate shutdown. A slow drift downward during run-up suggests a developing leak—abort the flight and investigate.”

5. Introduce the concept of performance margins by stating: “Commercial pilots learn to calculate performance. ATP pilots must calculate it precisely and understand what happens when margins disappear.” Present a scenario: 95°F day, density altitude 6,500 feet, helicopter at max gross weight. Ask the student to work through the performance chart and determine HOGE capability.

6. Walk through the performance calculation together, pointing out: “Notice this chart assumes sea level standard conditions. We have to correct for density altitude here, then apply the weight correction here. See this note that says ‘decrease torque available by 1% per 5°F above standard’? That’s critical—many pilots miss that note and think they have more power than actually available.”

7. After performance calculation practice, ask the student: “Based on this data, can you safely depart? What if there’s a 500-foot obstacle one mile from departure end?” Guide the student through climb gradient calculation and obstacle clearance analysis. Emphasize: “If the numbers don’t work, you have three choices: reduce weight, wait for better conditions, or don’t go. Those are your only options.”

8. Transition to emergency procedures briefing by asking: “What’s the most likely emergency during takeoff in a helicopter?” Confirm engine failure, then state: “At ATP level, you mentally rehearse this before every takeoff. You don’t have time to think through options when the engine quits at 50 feet—you need to already know exactly what you’re going to do.”

9. Brief a specific emergency scenario: “Today we’re departing Runway 18, winds 200 at 8 knots, temperature 85°F. At 100 feet AGL during climbout, the engine fails. Talk me through your immediate actions.” Listen for: immediate collective down, maintain aircraft control, establish autorotation, select landing area considering wind. Correct any deficiencies in the student’s briefing.

10. Discuss attention division by stating: “During pretakeoff checks, your scan is 80% inside, 20% outside. You’re verifying systems, but you’re also staying aware of other traffic, wind changes, developing weather. If someone taxis past you, you see them. If a gust shakes the helicopter, you feel it and correlate to wind sock observation. You’re never 100% heads-down in the cockpit.”

11. Move to the aircraft and demonstrate the complete pretakeoff check flow. Verbalize every action: “Flight controls—I’m moving the cyclic through full travel, forward, aft, left, right, checking for smooth motion, no binding, proper resistance. Now collective, full down to full up, smooth throughout the range, collective friction set for today’s winds. Pedals, full left, full right, centering properly.”

12. As you perform each system check, explain the malfunction detection method: “Engine instruments—oil pressure 45 PSI, green arc, normal. Oil temperature 75°C, green arc, normal. If oil pressure were below 30 or above 90, I’d shut down immediately. MGT is 650°C at idle, normal for this engine and outside air temperature. If MGT were 750°C, I’d be concerned about hot start or turbine damage and would not depart.”

13. Point out the hydraulic pressure gauge and state: “1,200 PSI, normal. If this drops below 800 PSI, I get a caution light and need to investigate. If it drops to zero, my control forces increase dramatically—this collective will take two hands to move, and the cyclic will be extremely stiff. That’s not a condition I want to discover after takeoff.”

14. Complete the entire pretakeoff check, then look at the student and say: “Based on what I found during these checks, is this helicopter airworthy and safe for flight?” Wait for the student to affirmatively state yes. Then ask: “If oil pressure had been 20 PSI, what would your decision be?” Confirm the student would shut down and not attempt flight.

15. Have the student perform the pretakeoff checks while you observe. Do not interrupt unless a safety-of-flight issue occurs. Watch for: systematic scan pattern, proper checklist usage, verbalization of items, attention division outside cockpit, correct interpretation of instrument indications.

16. After the student completes the first pretakeoff check sequence, provide feedback on scan pattern and checklist discipline. If the student missed any items or demonstrated poor flow, coach: “I noticed you jumped from engine instruments down to radios, then back up to flight instruments. That scattered pattern makes it easy to miss something. Try left-to-right, top-to-bottom, then verify with checklist.”

17. For the second practice sequence, introduce a simulated abnormality: point to an instrument and state, “This gauge is now reading [abnormal value]. What does that indicate, and what’s your action?” Examples: low hydraulic pressure, high MGT, fuel pressure fluctuating, alternator not charging. Evaluate the student’s analysis and decision-making.

18. After the student identifies the abnormality, ask: “Is this aircraft safe for the proposed flight, or does it require maintenance?” Listen for correct assessment. For a true no-go item like zero oil pressure, the student must state definitively: “This aircraft requires maintenance and cannot be flown.”

19. Conduct performance calculation exercises using current conditions at your airport. Provide the student with gross weight, altimeter setting, and temperature. Say: “Calculate our density altitude, determine if we can HOGE, and tell me our expected climb gradient with no wind.” Review the student’s work and ensure calculations are accurate.

20. Practice ATC clearance copying by reading a sample IFR clearance: “Helicopter Three-Two-One-Alpha-Bravo is cleared to Centennial Airport via the Denver Five departure, Falcon transition, then as filed. Maintain three thousand, expect one-two-thousand ten minutes after departure. Departure frequency one-two-four-point-three, squawk four-five-two-three.” Have the student read back the clearance and verify accuracy.

21. Ask the student to brief the emergency procedures for today’s departure: “What are your critical decision points and actions for engine failure during takeoff from this location?” Listen for altitude/airspeed decision points, autorotation entry procedure, landing area selection considering wind, and passenger/crew communication if applicable.

22. Present a scenario-based decision: “You’ve completed all pretakeoff checks and everything is normal except the GPS is showing ‘RAIM unavailable’ for your departure time. You’re filed IFR to an airport 200 miles away with VOR/ILS approaches available. What’s your decision?” Evaluate the student’s risk analysis—can continue with VOR navigation backup or may need to delay until RAIM available depending on routing and alternate requirements.

23. Conclude the lesson by asking the student to identify three items from today’s training that were new information or changed their understanding of pretakeoff checks. Listen for recognition of performance calculation precision, malfunction detection depth, or emergency procedures mental preparation.

24. Assign homework: “Review the abnormal procedures section of the RFM for this helicopter. For each abnormal situation, know the indications, immediate actions, and whether continued flight is permitted. Next lesson, I’ll ask you to explain corrective action for any malfunction I present.”

Student Actions

1. Actively participate in the lesson introduction by articulating the difference between commercial-level and ATP-level pretakeoff checks, demonstrating understanding that ATP standards require deeper systems knowledge and precise performance calculations.

2. Review the aircraft RFM systems description section before the lesson and come prepared with questions about any system operating characteristics that are unclear.

3. Follow along in the aircraft RFM as the instructor demonstrates the pretakeoff check flow, noting the systematic pattern and marking the checklist with any personal memory aids or emphasis points.

4. During the instructor’s demonstration of malfunction detection methods, take notes on normal operating ranges for each system and what specific values indicate out-of-limits conditions requiring corrective action.

5. Practice performance calculations using the aircraft-specific performance charts, working through multiple scenarios with varying density altitude, weight, and wind conditions until calculations can be completed accurately and efficiently.

6. Perform the first complete pretakeoff check sequence independently, using proper checklist discipline, verbalizing each item aloud, and dividing attention between cockpit systems and outside environment.

7. Demonstrate proper scan pattern by following a systematic flow (left to right, top to bottom, or aircraft-specific standard), then verifying with the checklist to catch any missed items.

8. When the instructor introduces simulated abnormalities during the second pretakeoff check practice, analyze the abnormal indication, state what malfunction it indicates, explain the detection method, and declare whether the aircraft is safe for flight or requires maintenance.

9. Calculate actual takeoff performance for the current conditions at the departure airport, determining density altitude within ±100 feet, HOGE capability, and climb gradient, showing all work for instructor verification.

10. Brief the emergency procedures for the planned departure, including specific decision altitudes, autorotation entry procedures, landing area selection criteria, and crew/passenger coordination actions.

11. Practice copying IFR clearances, reading back all altitude assignments, headings, and route information accurately, and asking for clarification on any portion that was unclear or missed.

12. Correctly interpret the takeoff clearance components, identifying the departure procedure, initial altitude, frequency, and transponder code, and determining whether any special instructions apply.

13. Demonstrate proper response when the instructor asks “Is this helicopter safe for the proposed flight?” by confidently assessing all system parameters and making a definitive go/no-go determination based on observed conditions.

14. Show proper attention division throughout all pretakeoff checks by maintaining awareness of other traffic, wind conditions, and developing weather while completing checklist items, looking outside the cockpit at regular intervals.

15. Ask questions about any checklist item, system indication, or performance calculation that is unclear, demonstrating the professional responsibility to fully understand all aspects before flight rather than accepting ambiguity.

16. Complete the assigned homework studying the RFM abnormal procedures section and be prepared to explain corrective actions for any malfunction the instructor may query during the next lesson.

Completion Standards

The lesson is complete when the student meets the standards of FAA-S-ACS-ATP Area of Operation III, Task D (AT.III.D), demonstrated by:

1. Knowledge of pretakeoff check items: The student states the specific purpose for each item on the approved checklist and explains the detection method for at least three potential malfunctions per system category (engine, hydraulics, electrical, flight controls, instruments), with explanations matching RFM guidance and demonstrating understanding beyond rote memorization.

2. System operating characteristics and limitations: When queried by the instructor on any normal or abnormal system operating characteristic, the student correctly explains the normal operating range (specific values or instrument indications), identifies what parameter exceedance indicates, and states the appropriate corrective action per the RFM abnormal procedures section, with 100% accuracy for critical safety-of-flight systems (engine, rotor, hydraulics, flight controls).

3. Emergency and abnormal procedures review: The student briefs the procedures for at least three emergency situations that may be encountered during takeoff (engine failure, low rotor RPM, hydraulic failure, tail rotor failure, or other aircraft-specific emergencies), including critical decision points (specific altitudes or airspeeds), immediate actions, and required pilot-in-command decisions, demonstrating the mental preparation expected of an ATP pilot before every departure.

4. Airworthiness determination: The student correctly determines whether the helicopter is safe for the proposed flight or requires maintenance when presented with both normal and abnormal system indications during pretakeoff checks, making definitive go/no-go decisions that prioritize safety over schedule pressure, and refusing to accept any discrepancy that renders the aircraft unairworthy per 14 CFR §91.7.

5. Takeoff performance determination: The student accurately calculates the helicopter’s takeoff performance considering wind (±2 knots component calculation), density altitude (±100 feet), helicopter weight (±50 pounds), temperature (±2°C), pressure altitude (±50 feet), and departure route obstacles, producing performance predictions within ±50 feet of published chart data and making appropriate go/no-go decisions when performance margins are insufficient.

6. Attention division: Throughout all pretakeoff checks, the student divides attention appropriately between inside and outside the cockpit, with no more than 10 consecutive seconds of heads-down time, maintaining awareness of traffic, wind changes, and other environmental factors while completing checklist items systematically.

7. System parameters verification: The student ensures all systems are within their normal operating range prior to beginning pretakeoff checks (before engine start values), during the performance of checks (all dynamic systems responding correctly), and at completion of checks (all systems stabilized and ready for departure), verifying 100% of required items per the approved checklist with no omissions.

8. Airspeed and navigation configuration: The student determines and sets all appropriate airspeeds or V-speeds for the departure (VY for max climb, cruise climb speed, or profile-specific speeds), properly configures all instrument references (altimeter ±20 feet, heading indicator ±3°, NAV source selected), flight director and autopilot controls (mode appropriate for departure, altitude preselect to assigned altitude ±100 feet), and navigation and communication equipment (correct frequencies identified, flight plan active, transponder code set), with zero errors in critical items (altitude assignments, heading assignments, frequencies).

9. Emergency procedures and crew coordination: The student reviews and states the corrective action required of the pilot in command and other concerned crewmembers (if applicable) for emergency and abnormal situations during takeoff, demonstrating CRM principles including clear role assignment, sterile cockpit discipline below 500 feet AGL, and passenger briefing on emergency egress and expectations.

10. ATC clearance interpretation: For IFR operations, the student obtains and correctly interprets the takeoff and departure clearance as issued by ATC, reading back all altitude assignments, heading assignments, and runway assignments verbatim, acknowledging all other clearance components, and requesting clarification for any ambiguous or unclear portion before accepting the clearance, with 100% accuracy in readback of altitude and heading assignments per ATC communication standards.

11. Checklist discipline: The student follows the approved checklist using challenge-do-response or read-do methodology with no skipped items, no items performed from memory without checklist verification, and proper restart procedure demonstrated when interrupted, maintaining professional checklist discipline throughout all pretakeoff checks.

12. Professional decision-making: Throughout the lesson, the student demonstrates ATP-level aeronautical decision-making by choosing the safest course of action when presented with marginal conditions, ambiguous system indications, or performance limitations, articulating the reasoning behind go/no-go decisions, and showing no hesitation to delay or cancel flight when safety margins are inadequate.

The student must meet all these standards consistently across multiple pretakeoff check sequences, including scenarios with simulated abnormalities, before the instructor endorses competency in this task. Any deficiency in knowledge of emergency procedures, performance calculation accuracy (beyond ±50 feet), or airworthiness determination (accepting an unairworthy condition) requires additional training before ATP checkride readiness.