What is Alternate Control Law?
Alternate Control Law A degraded mode in fly-by-wire aircraft providing limited flight envelope protections, used when normal law is lost due to system faults.
Source: ICAO Doc 9432, FAA PCG
How is “Alternate Control Law” Used in Practice?
ATC, we are operating under alternate control law due to flight control degradation, protections partially lost.
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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What is Alternate Control Law?
A degraded mode in fly-by-wire aircraft providing limited flight envelope protections, used when normal law is lost due to system faults.
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