AD 89-03-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | British Aerospace Regional Aircraft | H.P. 137 Jetstream Mk. 1 | Airworthiness Directives; British Aerospace Model HP 137 Mk.1, Jetstream Models 200 and 3101 Airplanes |
| aircraft | British Aerospace Regional Aircraft | Jetstream Series 200 | Airworthiness Directives; British Aerospace Model HP 137 Mk.1, Jetstream Models 200 and 3101 Airplanes |
| aircraft | British Aerospace Regional Aircraft | Jetstream Series 3101 | Airworthiness Directives; British Aerospace Model HP 137 Mk.1, Jetstream Models 200 and 3101 Airplanes |
Unsafe Condition
Reduction of strength of the main wing spar attachment structure due to cracks in Part Number 13707B99 and 13707B100 shear angles.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually or dye penetrant inspect shear angles for cracks as per BAe Alert Service Bulletin Jetstream 57-A-JA880144. Replace shear angles with P/N 13707B125 and 13707B126 if cracks exceed specified lengths, or re-inspect at intervals if cracks are smaller. Use BAe Modification JM5303 for modifications.
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Compliance Time
Within 4,000 landings or next 400 landings, whichever occurs later, and thereafter every 2,000 landings. If no landing records, use 1 hour time-in-service equals 2 landings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
British Aerospace Model HP 137 Mk.1, Jetstream Models 200 and 3101 (all serial numbers)
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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