Condition of the fabric covering must be determined on every 100 hour and annual inspection.

Question

BlackTom AI · Accepted Answer

Appendix D of FAA Part 43 specifically includes the condition of the fabric covering as an item to be checked during prescribed inspections, so True.

1) Relevant knowledge points and concepts
- 14 CFR Part 43 (and its Appendix D guidance) defines items that must be inspected during annual and 100‑hour/periodic inspections. 
- Fabric covering on aircraft is a primary structural/controlling surface and a weather/structural barrier; its integrity (deterioration, porosity, looseness, tears, failed stitching or adhesives) directly affects airworthiness and flight safety. 
- Both 100‑hour inspections (for aircraft used for hire) and annual inspections (for airworthiness approval) require a thorough condition check of airframe surfaces, including fabric coverings.

2) Step‑by‑step reasoning
- The purpose of the 100‑hour and annual inspections is to determine the aircraft’s overall condition and identify items needing repair or replacement.
- Fabric covering is part of the external structure that can degrade with age, UV exposure, moisture, and mechanical damage.
- Since deterioration of fabric can cause loss of strength, control surface flutter, or increased drag, it must be examined during these inspections.
- Therefore the inspector must determine and record the condition of the fabric covering at each 100‑hour and annual inspection.

3) Calculations
- Not applicable; this is an inspection/procedural requirement rather than a numerical problem.

4) Why the correct answer is correct
- The regulation and accepted inspection checklists explicitly include fabric covering condition among items to be evaluated during routine 100‑hour and annual inspections because of its structural and safety significance.

5) Why the other option is incorrect
- “False” would imply fabric covering need not be checked, which contradicts inspection guidance and would risk missing critical deterioration that affects airworthiness.

6) Conclusion
- The correct response is True, matching the provided answer.

Condition of the fabric covering must be determined on every 100 hour and annual inspection.判断题

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