AD 97-07-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | British Aerospace Regional Aircraft | H.P. 137 Jetstream Mk. 1 | Airworthiness Directives; Jetstream Aircraft Limited HP137 Mk1, Jetstream Series 200, and Jetstream Models 3101 and 3201 Airplanes |
| aircraft | British Aerospace Regional Aircraft | Jetstream 3201 | Airworthiness Directives; Jetstream Aircraft Limited HP137 Mk1, Jetstream Series 200, and Jetstream Models 3101 and 3201 Airplanes |
| aircraft | British Aerospace Regional Aircraft | Jetstream Series 200 | Airworthiness Directives; Jetstream Aircraft Limited HP137 Mk1, Jetstream Series 200, and Jetstream Models 3101 and 3201 Airplanes |
| aircraft | British Aerospace Regional Aircraft | Jetstream Series 3101 | Airworthiness Directives; Jetstream Aircraft Limited HP137 Mk1, Jetstream Series 200, and Jetstream Models 3101 and 3201 Airplanes |
Unsafe Condition
Failure of the nose landing gear (NLG) caused by a cracked NLG actuator support structure or cracked front pressure bulkhead, which could lead to nose gear collapse and damage to the airplane.
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Required Actions
Repetitively inspect the NLG actuator support structure, front pressure bulkhead, and NLG retraction jack upper mounting fitting for cracks or bolt failure; replace any cracked parts, failed security bolts, and adjust improperly torqued bolts. Modify the NLG retraction jack as a terminating action for all repetitive inspections.
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Compliance Time
Effective May 23, 1997
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Affected Aircraft
Jetstream Aircraft Limited HP137 Mk1, Jetstream Series 200, and Jetstream Models 3101 and 3201 airplanes that do not have the improved design attachment bracket (Modification JM 5285) installed.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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