What is D-Level Heavy Maintenance Inspection?
D-Level Heavy Maintenance Inspection An extensive, scheduled maintenance inspection that involves major disassembly, overhaul, and comprehensive structural and systems checks, typically performed every 6–12 years to ensure long-term airworthiness (ICAO Doc 9760, FAA Part 43).
Source: ICAO Doc 9432, FAA PCG
How is “D-Level Heavy Maintenance Inspection” Used in Practice?
The D-Level Heavy Maintenance Inspection requires the aircraft to be removed from service for several weeks and involves extensive airframe overhaul.
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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What is D-Level Heavy Maintenance Inspection?
An extensive, scheduled maintenance inspection that involves major disassembly, overhaul, and comprehensive structural and systems checks, typically performed every 6–12 years to ensure long-term airworthiness (ICAO Doc 9760, FAA Part 43).
Where can I learn this term for free?
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