AD 81-14-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Short Brothers PLC | SD3-30 | Airworthiness Directives; SHORT BROTHERS LIMITED Model SD3-30 Series Airplanes |
Unsafe Condition
Gear-up landing caused by the main landing gear actuator's inability to unlock.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Rework the actuator by cutting a venting groove across the contoured face of the profiled washer in accordance with Short Brothers Limited Service Bulletin No. SD3-32-86 Rev. 2 dated March 4, 1981, or later FAA approved revisions, or in a manner acceptable to the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Region.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 500 landings after the effective date of this AD
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Affected Aircraft
Short Brothers PLC Model SD3-30 series airplanes with Menasco Manufacturing main landing gear actuator assembly P/N 17900, Serial numbers MMC-003 through MMC-111 installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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