What is Engine Inoperative Drift?
Engine Inoperative Drift The lateral displacement from track or altitude lost when an aircraft operates with one or more engines inoperative, especially during ETOPS segments.
Source: ICAO Doc 9432, FAA PCG
How is “Engine Inoperative Drift” Used in Practice?
If engine inoperative drift is required, follow contingency routing and advise ATC immediately.
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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What is Engine Inoperative Drift?
The lateral displacement from track or altitude lost when an aircraft operates with one or more engines inoperative, especially during ETOPS segments.
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