AD 90-03-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dassault Aviation | Mystere-Falcon 50 | Airworthiness Directives; AVIONS MARCEL DASSAULT-BREGUET AVIATION Model Mystere Falcon 50 and 900 Series Airplanes |
| aircraft | Dassault Aviation | Mystere-Falcon 900 | Airworthiness Directives; AVIONS MARCEL DASSAULT-BREGUET AVIATION Model Mystere Falcon 50 and 900 Series Airplanes |
Unsafe Condition
Inability to manually open the main landing gear (MLG) door for MLG emergency extension due to failure of the MLG emergency release system.
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Required Actions
Within 30 days after the effective date, verify the MLG emergency release system with a functional test per service bulletin. If door release fails, replace the control bell crank with an adjustable one before further flight. If successful, either replace the bell crank within 180 days or 1,300 hours time-in-service or repeat the test every 1,300 hours.
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Compliance Time
Within 30 days after the effective date of this AD, and subsequent actions as specified (180 days/1,300 hours time-in-service or repeat tests every 1,300 hours).
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Affected Aircraft
AVIONS MARCEL DASSAULT-BREGUET AVIATION Model Mystere Falcon 50 and 900 series airplanes listed in AMD-BA Alert Service Bulletins F50-A212 and F900-A65 dated July 25, 1989.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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