AD Amdt-39-9656
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Honeywell | GP-300 guidance and display controllers | Airworthiness Directives; Dornier Model 328 Series Airplanes Equipped with Honeywell GP-300 Guidance and Display Controller |
Unsafe Condition
Defective light bulb in the Honeywell GP-300 guidance and display controller may cause short circuits leading to smoke/fumes in the cockpit or damage to circuit cards and components, potentially locking the autopilot in engaged mode.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the Honeywell GP-300 guidance and display controllers to prevent short circuits from defective light bulbs. This includes revising the autopilot system to ensure manual disconnection remains possible.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
Dornier Model 328 series airplanes equipped with Honeywell GP-300 guidance and display controllers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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