AD 92-08-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | ATP | Airworthiness Directives; BRITISH AEROSPACE Model ATP Series Airplanes |
Unsafe Condition
Failure of the hydraulic landing gear change-over valve mechanism or undercarriage emergency release mechanism could result in a gear-up landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform operational tests of the hydraulic landing gear change-over valve mechanism at intervals not exceeding 30 hours time-in-service. Modify the undercarriage emergency release mechanism and perform associated functional tests within 60 days after the AD effective date. For specified serial numbers, inspect the swivel assembly, install clevis pins, and perform functional tests of the landing gear normal selector mechanism within 60 days.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 24 hours after November 29, 1990, and thereafter at intervals not to exceed 30 hours time-in-service; and within 60 days after the AD effective date (June 2, 1992).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
BAE Systems (Operations) Limited Model ATP series airplanes, serial numbers 2001 through 2037.
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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