AD 98-19-17
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | DG Flugzeugbau GmbH | DG-400 | Airworthiness Directives; Glaser-Dirks Flugzeugbau GmbH Model DG-400 Gliders |
Unsafe Condition
Damage to the engine caused by vibration, which could result in loss of engine power during critical phases of flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the powerplant (engine) mount and propeller mount for any loose parts within 1 calendar month after the effective date. If loose parts are found, within 3 calendar months or prior to further flight, modify the starter motor, retrofit the holder for the starter motor, check and adjust the engine ignition timing, and ensure compliance with specified technical notes and maintenance manuals.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 1 calendar month after the effective date of this AD for the inspection, and within 3 calendar months after the inspection or prior to further flight if loose parts are found, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Glaser-Dirks Flugzeugbau GmbH Model DG-400 gliders, serial numbers 4-1 through 4-249.
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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