AD 89-16-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | British Aerospace Regional Aircraft | Jetstream Series 3101 | Airworthiness Directives; British Aerospace Jetstream Model 3101 Airplanes |
Unsafe Condition
Possible loss of elevator trim control due to failure of the autopilot elevator trim servo cable (ET1), BAe Part Number 137187E472.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the elevator trim servo cable ET1 (BAe Part Number 137187E472) within specified intervals per BAe Mandatory Alert Service Bulletin Jetstream 22-A-JA861023, Rev 1. For airplanes with 900+ hours TIS by effective date: within next 100 hours TIS and every 1,000 hours TIS thereafter. For those with <900 hours TIS: at or before 1,000 hours TIS and every 1,000 hours TIS thereafter. Equivalent compliance may be approved by FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Required as indicated after the effective date of this AD, unless already accomplished.
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Affected Aircraft
British Aerospace Jetstream Model 3101 (all serial numbers) with Sperry SPZ-200B or SPZ-500 autopilot installations.
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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