AD 91-07-12
Unsafe Condition
Failure of the main landing gear (MLG) door aluminum forward hinge fittings could result in improper operation of the MLG door.
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Required Actions
Replace the aluminum forward hinge fittings with stainless steel ones per British Aerospace Service Bulletins 32-218 and 32-220-3176A/B/C. Compliance must be within 400 landings after December 4, 1990, or prior to 6,000 landings, whichever is later, and repeat every 6,000 landings thereafter.
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Compliance Time
Within the next 400 landings after December 4, 1990, or prior to the accumulation of 6,000 landings on the right and left MLG door aluminum forward hinge fittings, whichever occurs later, and thereafter at intervals not to exceed 6,000 landings.
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Affected Aircraft
British Aerospace Model DH/BH/HS 125 series airplanes post-modification 255640.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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