PARKING AND SECURING

Objective

The ATP helicopter candidate will demonstrate professional-level knowledge and procedural discipline in properly parking and securing a turbine helicopter following flight operations, and will correctly document flight time and discrepancies in accordance with 14 CFR Part 91 and Part 135 operational standards, meeting the completion standards outlined in FAA-S-ACS-ATP AT.XI.B.

Content

Introduction to Professional Postflight Discipline

At the ATP level, parking and securing the helicopter represents far more than simply shutting down the aircraft. This is where professional flight operations conclude with the same systematic precision they began. As an ATP pilot, you’re expected to protect the aircraft, preserve its value, ensure proper documentation for the next crew, and complete all regulatory requirements without shortcuts. Poor postflight procedures damage equipment, create maintenance issues, leave liability gaps, and demonstrate unprofessional airmanship.

Think of this as the final items on your professional checklist that determine whether the aircraft is ready for the next flight or whether you’ve created problems for the next crew. You are now the last link in the safety chain for this flight—and the first link for the next one.

Regulatory Framework

14 CFR §91.417 - Maintenance Records Requirements
As PIC, you are responsible for ensuring all required maintenance records are available and that discrepancies are properly documented. Even if you’re operating under Part 135, your ATP-level responsibility includes understanding what must be recorded and how discrepancies affect airworthiness.

14 CFR §91.3(a) - Responsibility and Authority
Your authority as PIC includes ensuring the aircraft is properly secured and protected from damage after your flight concludes.

14 CFR §135.415 - Service Difficulty Reports (when applicable)
For Part 135 operations, certain failures, malfunctions, or defects must be reported to the FAA within 96 hours. As an ATP pilot, you must recognize reportable items during postflight inspection.

14 CFR §61.51 - Pilot Logbooks
You must record flight time accurately, including the specific aircraft make/model/series, route, flight conditions, and pilot time categories (PIC, SIC, instrument, etc.).

Aircraft Flight Manual (AFM) Requirements
The AFM for your specific helicopter contains the manufacturer’s required shutdown, parking, and securing procedures. As an ATP pilot, you never deviate from these published procedures—they exist to prevent damage and ensure the next flight begins safely.

Parking Procedures - Location Selection

Surface Assessment
Select parking areas with firm, level, stable surfaces free from FOD (Foreign Object Debris). Turbine helicopters with high-inertia rotor systems can generate significant downwash that kicks up debris even during shutdown. Consider:

• Surface composition (concrete preferred, asphalt acceptable, grass/gravel requires careful assessment)
• Surface slope (level preferred; AFM may specify maximum slope limitations)
• Drainage (avoid areas where water pools—rotor downwash creates spray that can enter engine intakes)
• Proximity to buildings, vehicles, and pedestrians (consider rotor diameter plus safety buffer)
• Tie-down anchors or parking restraints if required for anticipated weather

Environmental Considerations

• Wind direction for shutdown (reference AFM—most turbine helicopters prefer into-wind shutdown to minimize blade sailing)
• Sun exposure (direct sunlight on composite blades, avionics bays, or windows)
• Weather forecast (impending winds, storms, temperature extremes)
• Hangar availability vs. outdoor tie-down requirements

Operational Considerations

• Fuel truck access if refueling required
• Passenger loading/unloading area separation
• Next flight departure requirements
• Ground power accessibility for battery maintenance
• Security of location (prevention of tampering or unauthorized access)

Shutdown Procedures - Professional Execution

Pre-Shutdown Checks
Before initiating shutdown, complete all AFM-required pre-shutdown items, which typically include:

• Electrical loads reduced to minimum (avionics off, lights as required, essential bus items only)
• Flight controls checked neutral or as specified by AFM
• Fuel boost pumps as required by AFM (some helicopters require boost pumps off before shutdown; others keep them on)
• Hydraulics configuration per AFM
• Anti-ice/environmental systems off

Engine Shutdown Sequence
Follow the AFM exactly. For most turbine helicopters:

1. Allow appropriate cool-down period at ground idle (typically 2-3 minutes, longer after high-power operations)
2. Monitor engine and transmission temperatures during cool-down
3. Execute fuel cutoff or condition lever to OFF per AFM sequence
4. Monitor TOT (Turbine Outlet Temperature) and NG (Gas Producer RPM) during spool-down
5. Note any abnormal indications during shutdown (compressor stall indications, hung starts, temperature exceedances)
6. For twin-engine helicopters, follow AFM sequence for which engine shuts down first

Rotor Coast-Down

• Rotor brake application per AFM (many turbine helicopters have no rotor brake; blades coast naturally)
• Keep collective full down during coast-down
• Maintain cyclic neutral or slightly aft to prevent blade droop contact with tailboom
• Monitor blade coast-down for abnormal sounds (bearing issues, blade imbalance)
• Never attempt to manually stop blades—rotor inertia in turbine helicopters can cause serious injury

Post-Shutdown Electrical

• Battery switch OFF per AFM (prevents parasitic battery drain)
• All electrical switches OFF
• Avionics master OFF

Securing Procedures - Protecting the Asset

Flight Control Positioning

• Collective full down and friction locked
• Cyclic centered or as specified by AFM (some helicopters require aft cyclic to prevent blade droop)
• Pedals neutral, friction applied if available
• Pilot door positioned per AFM (some helicopters require door open to prevent latch damage from thermal expansion; others require closed)

Rotor Blade Securing

• Blade tie-down straps installed per AFM if winds exceed specified limits (typically 25-30 knots for outdoor parking)
• Main rotor blades positioned per AFM (usually aligned fore-aft for minimum exposure)
• Tail rotor inspection for damage or FOD
• Blade covers installed if prolonged outdoor parking expected (protects leading edges from UV and environmental damage)

Engine and Airframe Covers

• Engine inlet covers installed (prevents FOD ingestion, bird nesting, moisture intrusion)
• Exhaust covers installed per AFM requirements
• Pitot covers installed (prevents insect/debris blockage)
• Window sun shields if applicable

Tie-Down Requirements
For outdoor parking in anticipated winds or overnight/extended parking:

• Main rotor tie-down (prevents blade sailing and teeter stop impacts)
• Fuselage tie-downs (three-point or four-point depending on helicopter type)
• Tension tie-down straps appropriately (snug but not over-tensioned)
• Use proper tie-down hardware rated for helicopter weight
• Inspect tie-down anchors for security

Ground Handling Wheels (if applicable)

• Some helicopters use ground handling wheels attached to skids
• Install per manufacturer instructions
• Verify parking brake set or wheels chocked

Chocks

• For wheeled helicopters, install chocks fore and aft of main wheels
• Verify parking brake set before relying on chocks alone

Final Walkaround Inspection
Conduct systematic walkaround to identify any new damage or discrepancies:

• Rotor system (blades, hub, teeter assembly, pitch links, dampers)
• Engine cowlings and access panels secure
• Landing gear condition (skids, wheels, tires, struts)
• Tail boom and tail rotor condition
• Fluid leaks (hydraulic, oil, fuel)
• Loose panels or fasteners
• Impact damage or foreign object strikes
• Antennas and external equipment secure

Flight Time and Discrepancy Documentation

Pilot Logbook Recording - 14 CFR §61.51
Record the following accurately:

• Date of flight
• Total flight time (Hobbs or tach time, as appropriate for your logging method)
• Aircraft make, model, and series (e.g., “Bell 206L-4”)
• Aircraft registration number
• Route of flight (departure/destination identifiers)
• Type of pilot time (PIC, SIC, dual received, dual given)
• Flight conditions (day, night, actual instrument, simulated instrument)
• Approaches completed (type and number, if instrument flight)
• Landings (day/night, full-stop/touch-and-go)
• Any unusual occurrences or training received

At the ATP level, your logbook is a legal document. Accuracy is non-negotiable—falsification of logbook entries is grounds for certificate revocation under 14 CFR §61.59.

Aircraft Journey Logbook or Flight Log
Most professional operations maintain an aircraft journey log separate from maintenance logs. Record:

• Flight date and PIC name
• Departure and arrival locations with times (UTC or local per company SOP)
• Total flight time for this leg
• Cumulative airframe time
• Cumulative engine time (single engine) or individual engine times (twin)
• Fuel added and fuel remaining
• Passenger names or cargo manifest reference
• Any operational notes (weather delays, passenger requests, company communications)

Aircraft Maintenance Discrepancy Recording
Professional operators use structured discrepancy reporting systems. As ATP PIC, you must:

Identify Discrepancies
Categorize issues appropriately:

• Grounding items: Discrepancies that render the aircraft unairworthy (e.g., cracked windscreen, inoperative anti-collision light at night, hydraulic system failure, engine chip light)
• Deferrable items: Discrepancies allowed under MEL (Minimum Equipment List) or operations specifications (e.g., inoperative air conditioning, passenger reading light, GPS #2 in a dual-GPS installation)
• Monitoring items: Conditions that require tracking but don’t immediately affect airworthiness (e.g., slight hydraulic weep, loose panel fastener, worn step pad)

Document Accurately
Your discrepancy write-up must give maintenance personnel enough information to troubleshoot without requiring them to call you:

• Bad: “Engine light came on”
• Good: “ENG 1 OIL PRESS caution illuminated during cruise at 1345Z, FL085, OAT +15°C. Actual oil pressure remained 45 PSI (green arc). Light extinguished after 5 seconds. No recurrence during remaining 1.2 hour flight. Landed as precaution per AFM CAUTION light procedures.”

Include:

• Exact description of malfunction
• When it occurred (flight phase, time, conditions)
• What you did in response
• Whether it recurred
• Any relevant instrument readings or parameters

Squawk Sheet or Maintenance Log Entry
Sign and date your discrepancy write-up. In Part 135 operations, this becomes part of the permanent aircraft records. The next entry will be the mechanic’s corrective action and return-to-service signature per 14 CFR §43.9.

MEL Procedures (if applicable)
If your operation uses an approved MEL:

• Determine if the discrepancy is listed in the MEL
• Verify you’re within the category of operation allowed (e.g., “May be inoperative for VFR day operations only”)
• Apply any required placards or deactivation procedures
• Note MEL deferral in journey log with MEL item number
• Verify compliance intervals (e.g., “must be repaired within 10 days” or “at next scheduled maintenance”)

Service Difficulty Reports - 14 CFR §135.415
For Part 135 operators, certain failures must be reported to the FAA within 96 hours:

• Fires during flight or ground operations
• Engine failures or malfunctions
• Flight control malfunctions or failures
• Electrical system failures requiring emergency procedures
• Structural failures or cracks
• Hydraulic system failures requiring emergency procedures

As ATP PIC, recognize these reportable items and ensure company compliance with SDR requirements.

Personal Notes and Professional Memory
Beyond regulatory requirements, maintain your own professional notes about:

• Unusual handling characteristics observed
• Weather or operational lessons learned
• Maintenance trends you’ve noticed (e.g., “This aircraft’s #1 fuel boost pump has failed twice in three months”)
• Communication with company or dispatch regarding operational issues

These notes protect you legally and demonstrate professional diligence if questions arise later.

Professional Standards and ATP-Level Discipline

Checklist Discipline
Use the shutdown checklist every time—no shortcuts, no “flow only” procedures. At the ATP level, you demonstrate that you fly the same aircraft the same way every time.

Crew Resource Management (CRM)
If you’re flying with another pilot, brief who accomplishes shutdown duties:

• “I’ll handle the shutdown checklist and engine securing. Please monitor gauges and call out any abnormal indications.”
• Clear communication prevents missed items

Single-Pilot Resource Management (SRM)
When flying single-pilot:

• Manage distractions (passengers wanting to deplane, ground personnel approaching)
• Complete shutdown and securing before engaging in non-flight activities
• Use written checklist—never from memory at ATP level

Handoff to Next Crew
Professional operations require clear handoff:

• Communicate any discrepancies or unusual observations to next crew
• Note any MEL items on handoff sheet
• Identify aircraft status (e.g., “Aircraft is fueled and ready for next flight” vs. “Aircraft requires maintenance release before next flight”)

Security and Asset Protection

• Remove headsets and personal equipment
• Secure baggage compartments
• Lock doors per company SOP
• Ensure tie-downs are secure if leaving aircraft unattended
• Verify no tools, FOD, or personal items left in cockpit

Common Errors and Professionalism Gaps

• Rushing shutdown due to passenger pressure or weather
• Skipping tie-downs “because winds are light now” (weather changes)
• Failing to document minor discrepancies “because it’s not a big deal” (trends develop)
• Vague discrepancy write-ups that don’t help maintenance
• Recording inaccurate flight times in logbook or journey log
• Leaving aircraft unsecured when stepping away “just for a minute”
• Not following AFM cool-down requirements (causes turbine damage)
• Forgetting to install inlet/exhaust covers (FOD risk, moisture intrusion)

Schedule

Equipment

Required References

• FAA-S-ACS-ATP (Airline Transport Pilot Helicopter Rating Airman Certification Standards)
• FAA-H-8083-21B (Rotorcraft Flying Handbook)
• 14 CFR Part 61 (Certification: Pilots, Flight Instructors, and Ground Instructors)
• 14 CFR Part 91 (General Operating and Flight Rules)
• 14 CFR Part 43 (Maintenance, Preventive Maintenance, Rebuilding, and Alteration)
• 14 CFR Part 135 (Operating Requirements: Commuter and On Demand Operations) - if applicable
• Aircraft Flight Manual (AFM) for specific helicopter being flown
• Pilot Operating Handbook (POH) or Rotorcraft Flight Manual (RFM)
• Approved Minimum Equipment List (MEL) - if applicable to operation

Required Materials

• Training helicopter with current airworthiness certificate
• Aircraft journey logbook or flight log
• Aircraft maintenance discrepancy log or squawk sheet
• Sample MEL (if applicable to operation)
• Tie-down equipment (straps, ropes, chocks)
• Engine inlet/exhaust covers appropriate for aircraft
• Pitot covers
• Student pilot logbook
• Instructor pilot logbook

Visual Aids and Training Tools

• Laminated shutdown checklist for aircraft type
• Sample completed discrepancy write-ups (good and bad examples)
• Sample journey log entries
• Photographs of properly secured helicopters with tie-downs installed
• Diagram of recommended tie-down points for aircraft type
• Flow chart for determining airworthiness status after discrepancy identified

Instructor Actions

1. Pre-Flight Brief the Lesson Objective: “Today we’re covering ATP-level parking and securing procedures and proper documentation. This isn’t just shutting down the helicopter—it’s completing professional flight operations with the same systematic precision you use for every other phase of flight. You’re protecting a multi-million-dollar asset and ensuring the next crew has complete information about aircraft status.”

2. Present Regulatory Framework: Review 14 CFR §91.417 (maintenance record requirements), §91.3 (PIC responsibility), §61.51 (pilot logbook requirements), and §135.415 (service difficulty reports for Part 135 operations). Explain how these regulations define your ATP-level responsibilities for postflight documentation.

3. Discuss Parking Location Selection: Explain surface assessment criteria, environmental factors, and operational considerations. Use specific examples: “If you’re parking on a grass surface in summer heat after a long flight, that turbine helicopter is hot. Your downwash during shutdown will kick up dust and debris—position away from other aircraft and consider wind direction.”

4. Teach AFM Shutdown Procedures: Walk through the specific AFM shutdown sequence for the training helicopter being used. Emphasize: “The AFM procedure exists because the manufacturer knows how to prevent damage to this specific engine and rotor system. You never shortcut this—turbine engines require proper cool-down, and improper shutdown damages expensive components.”

5. Demonstrate Proper Shutdown Sequence in Aircraft: Conduct actual shutdown in the training helicopter while verbalizing each step: “I’m verifying we’re at ground idle with all electrical loads minimized. I’m starting a two-minute cool-down timer—watch the TOT and EGT as the engine stabilizes. Now I’m moving the condition lever to OFF and monitoring the spool-down. Notice I’m keeping collective full down and cyclic neutral.”

6. Teach Securing Procedures: Demonstrate flight control positioning, blade securing, installation of covers, and tie-down procedures. Physically install tie-down straps while explaining: “These straps prevent blade sailing. Notice I’m tensioning them snug but not over-tight—you want to prevent movement, not stress the rotor system.”

7. Conduct Systematic Walkaround: Lead student through complete postflight walkaround inspection, identifying what to look for: “Run your hand under the cowling here—feel for fluid leaks. Look closely at this pitch link—any signs of looseness or damage? Check the tail rotor for impact strikes or missing balance weights.”

8. Explain Discrepancy Documentation Standards: Present examples of well-written and poorly-written discrepancy reports. Contrast: “Bad: ‘Weird noise.’ Good: ‘Intermittent grinding noise from tail rotor gearbox area during cruise flight, occurred three times between 1300-1400Z, each lasting approximately 10 seconds, noise audible over intercom. No accompanying vibration or gauge abnormalities noted.’”

9. Review Logbook Recording Requirements: Show proper pilot logbook entries and aircraft journey log completion. Explain each required field: “Record the exact aircraft model—‘Bell 206L-4,’ not just ‘206.’ Record actual flight time from engine start to shutdown, not block-to-block taxi time unless that’s your operation’s standard.”

10. Present MEL Application Scenarios: If the operation uses an MEL, work through sample discrepancies requiring MEL reference. Demonstrate: “The right landing light is inoperative. Let’s look up ‘Landing Light’ in the MEL. It says we can operate VFR day with one light inoperative for up to 10 days. We need to placard it INOP and make a journey log entry noting the MEL item and date.”

11. Teach Service Difficulty Reporting Recognition: Describe scenarios requiring SDR reports under Part 135: “If you experienced an engine failure, electrical fire, or flight control malfunction, that’s reportable within 96 hours. You document it in the aircraft log, and you also ensure company files the SDR with FAA.”

12. Conduct Scenario-Based Training: Present scenarios requiring decision-making: “You notice a small hydraulic leak during postflight. It wasn’t there preflight. What’s your process? Do you ground the aircraft? How do you document this? Can it be deferred?” Guide student through proper decision process.

13. Supervise Student Practice: Have student complete full shutdown, securing, and documentation sequence while you observe and coach. Intervene only for safety or to prevent damage: “Before you shut down, verify you’ve reduced all electrical loads. Check your shutdown checklist.”

14. Debrief Student Performance: Review what the student did well and identify any gaps: “Your shutdown procedure was methodical and correct. Your discrepancy write-up needs more detail—instead of ‘low oil pressure light,’ specify the exact gauge reading, when it occurred, and how long it lasted.”

15. Confirm Completion Standards Met: Verify student demonstrated adequate knowledge of parking/securing procedures and proper documentation methods per ACS AT.XI.B standards. Provide specific feedback tied to performance observed.

Student Actions

1. Actively participate in ground instruction, asking questions about regulatory requirements, shutdown procedures, and documentation standards that are unclear.

2. Take notes on aircraft-specific AFM shutdown procedures, discrepancy reporting format, and logbook recording requirements.

3. Review the AFM shutdown checklist for the training helicopter and identify each required step and sequence.

4. Observe instructor’s demonstration of complete shutdown sequence in aircraft, noting technique, checklist discipline, and verbalization of steps.

5. Observe instructor’s demonstration of securing procedures, including control positioning, cover installation, and tie-down application.

6. Participate in instructor-led walkaround inspection, identifying potential discrepancies and discussing documentation requirements.

7. Study examples of proper and improper discrepancy write-ups, identifying what makes documentation effective and complete.

8. Practice completing sample pilot logbook entries and aircraft journey log entries with instructor feedback.

9. Apply MEL procedures (if applicable) to sample discrepancy scenarios, determining airworthiness status and required actions.

10. Perform complete shutdown procedure under instructor supervision, following AFM checklist systematically without deviation or shortcuts.

11. Secure the helicopter following shutdown, installing flight control locks/frictions, covers, and tie-downs as appropriate for environmental conditions.

12. Conduct thorough postflight walkaround inspection, identifying and documenting any discrepancies discovered.

13. Complete all required documentation including pilot logbook entry, aircraft journey log entry, and discrepancy reports (if applicable) with proper detail and accuracy.

14. Demonstrate proper MEL application (if applicable) to identified discrepancies, including determining deferability and required placarding.

15. Respond to scenario-based questions requiring judgment about discrepancy severity, airworthiness determination, and proper documentation procedures.

16. Self-critique performance during debriefing, identifying areas for improvement in procedure execution or documentation quality.

Completion Standards

The lesson is complete when the student demonstrates adequate knowledge and professional discipline in parking and securing the helicopter and documenting flight time and discrepancies, meeting ATP-level standards as outlined in FAA-S-ACS-ATP AT.XI.B:

1. Exhibits adequate knowledge of parking and securing procedures by verbally explaining or demonstrating:

   • Criteria for selecting appropriate parking locations based on surface conditions, environmental factors, and operational requirements
   • Aircraft-specific AFM shutdown procedures including cool-down requirements, sequence of fuel/ignition cutoff, and monitoring of engine parameters during spool-down
   • Proper flight control positioning for securing (collective full down, cyclic neutral or as specified by AFM, friction locks applied)
   • Installation of covers (engine inlet, exhaust, pitot) and tie-down equipment appropriate for anticipated weather conditions
   • Completion of systematic postflight walkaround inspection identifying potential damage, leaks, or discrepancies

2. Demonstrates adequate knowledge of helicopter forms/logs to record flight time/discrepancies by:

   • Completing accurate pilot logbook entries per 14 CFR §61.51 including date, aircraft make/model/series, route, flight time, pilot time categories (PIC/SIC), and flight conditions (day/night/instrument)
   • Properly recording flight information in aircraft journey log or flight log including PIC name, departure/arrival times and locations, flight time, cumulative aircraft/engine time, and fuel status
   • Writing complete and accurate discrepancy reports that include specific description of malfunction, when it occurred, flight conditions present, corrective actions taken, and whether condition recurred
   • Correctly applying MEL procedures (when applicable) to determine whether discrepancies are deferrable, required placarding, and compliance time limits
   • Recognizing discrepancies requiring service difficulty reports under 14 CFR §135.415 (when applicable to Part 135 operations)
   • Demonstrating understanding of maintenance record requirements per 14 CFR §91.417 and the PIC’s responsibility for proper aircraft documentation

3. Executes all procedures with ATP-level professionalism including:

   • Consistent use of written checklists without reliance on memory or flow patterns alone
   • Systematic and methodical approach to shutdown and securing that demonstrates repeatable technique
   • Attention to asset protection through proper securing, cover installation, and environmental protection
   • Clear and complete documentation that provides necessary information for maintenance personnel and next flight crew
   • Recognition of discrepancies requiring immediate maintenance action versus items that may be deferred under MEL
   • Professional judgment in determining aircraft airworthiness status after discrepancies are identified

Performance is unsatisfactory if the student:

• Fails to follow AFM shutdown procedures, skips required cool-down periods, or deviates from prescribed sequence
• Does not properly secure flight controls or install required covers/tie-downs for anticipated conditions
• Records inaccurate or incomplete flight time in pilot logbook or aircraft journey log
• Writes vague or incomplete discrepancy reports lacking necessary detail for maintenance troubleshooting
• Incorrectly applies MEL procedures or fails to recognize grounding discrepancies
• Demonstrates lack of systematic approach or checklist discipline during shutdown and securing
• Fails to complete thorough postflight walkaround inspection or misses significant discrepancies
• Shows lack of understanding of regulatory requirements for documentation and recordkeeping

The student must meet all completion standards to demonstrate competency in this task at ATP certification level per ACS AT.XI.B.