Aircraft Requirements & Limitations

Objective

Upon completion of this lesson, the CFI candidate will demonstrate the ability to teach aircraft requirements and limitations for helicopter practical tests. The candidate will explain regulatory requirements, identify inoperative equipment considerations, and demonstrate proper aircraft verification procedures in accordance with ACS task HI.18.A.

Content

Introduction to Aircraft Requirements & Limitations

As helicopter flight instructors, we must ensure our students understand the critical aircraft requirements for practical tests. Think of this like preparing for a championship game - you wouldn’t show up with broken equipment and expect to perform well. The same principle applies to checkrides.

14 CFR 61.45 - Aircraft Requirements for Practical Tests

The foundation regulation governing aircraft requirements is 14 CFR 61.45. This regulation establishes minimum standards that aircraft must meet for practical test use:

Basic Aircraft Requirements:

• Must be of U.S., foreign, or military registry
• Aircraft must be in airworthy condition
• Must have fully functioning dual controls (except for lighter-than-air)
• Must be capable of performing all tasks required for the practical test
• Must meet equipment requirements specified in the aircraft’s type certificate

14 CFR 91.213 - Inoperative Equipment

When equipment is inoperative, we must determine if the aircraft can still be operated legally. This is where 91.213 becomes crucial:

The Decision Tree Approach:

1. Is the inoperative equipment required by regulation (91.205, type certificate, etc.)?
2. If required - aircraft is not airworthy until repaired
3. If not required - can it be placarded inoperative and deferred?
4. Does the inoperative equipment affect practical test completion?

Critical Teaching Point: Just because an aircraft can be operated with inoperative equipment doesn’t mean it’s suitable for a practical test. The equipment must not interfere with demonstrating required tasks.

Practical Test Equipment Considerations

For helicopter practical tests, consider these common equipment scenarios:

Navigation Equipment:

• GPS failures may prevent certain navigation tasks
• VOR/DME inoperative could limit instrument approaches
• Attitude indicators affect instrument flight demonstrations

Communication Equipment:

• Inoperative radios limit controlled airspace operations
• Transponder failures restrict certain airspace usage

Flight Instruments:

• Any primary flight instrument failure typically grounds the aircraft for practical tests
• Engine instruments must be fully functional for power management demonstrations

Flight Simulation Training Devices (FSTD)

Per HI.XVIII.A.K3, practical tests in FSTDs can only be conducted as part of approved curricula or training programs. This isn’t a “rent-and-test” scenario - it requires formal program approval.

Risk Management Considerations

Pre-Test Equipment Assessment: The most critical risk management practice is determining equipment status before the practical test begins. Like a preflight inspection, this assessment prevents wasted time, money, and potential safety issues.

Documentation Requirements:

• Ensure all required logbook entries are current
• Verify airworthiness certificate and registration are aboard
• Confirm all required placards are in place for any deferred items

Communication with DPE: Establish clear communication about any equipment limitations before the test begins. Transparency prevents surprises during the practical test.

Teaching Applications

When teaching this material, emphasize that students should:

• Always verify aircraft suitability well before their checkride date
• Understand the difference between legal to fly and suitable for testing
• Know how to research equipment requirements in regulations and aircraft documentation
• Develop systematic approaches to equipment verification

The key teaching analogy: “You wouldn’t take a driving test in a car with broken turn signals - the same principle applies to flight tests with inoperative aircraft equipment.”

Schedule

Equipment

• 14 CFR Part 61 (current edition)
• 14 CFR Part 91 (current edition)
• Sample aircraft equipment list and limitations section
• Sample aircraft logbooks with various equipment deferrals
• Helicopter Flight Manual or POH
• ACS HI.18.A reference materials
• Whiteboard or flip chart for decision tree illustration
• Aircraft airworthiness and registration certificates (samples)

Instructor Actions

The CFI candidate will:

1. Demonstrate regulatory knowledge by explaining 14 CFR 61.45 requirements and their application to helicopter practical tests
2. Illustrate decision-making process for inoperative equipment using 14 CFR 91.213, walking through real-world scenarios
3. Verify aircraft compliance by demonstrating the systematic process for confirming an aircraft meets 61.45 requirements
4. Assess equipment impact by evaluating how specific inoperative items might interfere with practical test tasks
5. Explain FSTD limitations regarding approved program requirements
6. Model risk management by demonstrating pre-test aircraft assessment procedures
7. Use effective teaching techniques including analogies, examples, and interactive questioning to engage the evaluator as a student

Student Actions

The evaluator, acting as a student, will:

1. Participate in discussions about aircraft requirements and regulatory interpretations
2. Work through scenarios involving inoperative equipment and practical test suitability
3. Practice verification procedures using provided aircraft documentation
4. Ask relevant questions about regulatory requirements and practical applications
5. Demonstrate understanding of the relationship between airworthiness and practical test suitability
6. Engage with teaching scenarios by responding to CFI candidate’s instructional techniques

Completion Standards

The lesson is complete when the CFI candidate demonstrates the ability to teach aircraft requirements and limitations in accordance with ACS task HI.18.A by:

1. Accurately explaining 14 CFR 61.45 aircraft requirements and their application to helicopter practical tests (addresses HI.XVIII.A.K4)
2. Demonstrating knowledge of 14 CFR 91.213 procedures for determining aircraft operability with inoperative equipment (addresses HI.XVIII.A.K1)
3. Effectively teaching how to determine if inoperative equipment interferes with practical test requirements (addresses HI.XVIII.A.K2 and HI.XVIII.A.R2)
4. Explaining FSTD limitations and approved program requirements (addresses HI.XVIII.A.K3)
5. Modeling systematic aircraft verification procedures per 14 CFR 61.45 (addresses HI.XVIII.A.S1)
6. Demonstrating assessment techniques for confirming inoperative equipment doesn’t interfere with test tasks (addresses HI.XVIII.A.S2)
7. Exhibiting effective risk management by emphasizing pre-test equipment assessment (addresses HI.XVIII.A.R1)
8. Using appropriate teaching methods that engage the student and promote understanding of regulatory requirements and practical applications