AD 64-14-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dornier-Werke GmbH | Dornier Luftfahrt GmbH | Do 28 A-1 | Airworthiness Directives; Dornier Model DO-28 Series Aircraft |
| aircraft | Dornier-Werke GmbH | Dornier Luftfahrt GmbH | Do 28 B-1 | Airworthiness Directives; Dornier Model DO-28 Series Aircraft |
| aircraft | Dornier-Werke GmbH | Dornier Luftfahrt GmbH | Do 28 D | Airworthiness Directives; Dornier Model DO-28 Series Aircraft |
| aircraft | Dornier-Werke GmbH | Dornier Luftfahrt GmbH | Do 28 D-1 | Airworthiness Directives; Dornier Model DO-28 Series Aircraft |
Unsafe Condition
The generator and battery relays remain inoperative with low battery voltage, leaving the electrical system without power supply.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within the next 50 hours' time in service, change the electrical wiring as specified by Dornier Technical Bulletin 28-6 dated December 7, 1962.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours' time in service
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Dornier-Werke GmbH | Dornier Luftfahrt GmbH Model Do 28 A-1 | Do 28 B-1 | Do 28 D | Do 28 D-1 up to and including serial number 3060.
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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