AD 98-17-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | DG Flugzeugbau GmbH | DG-400 | Airworthiness Directives; Glaser-Dirks Flugzeugbau GmbH Model DG-400 Gliders |
Unsafe Condition
Failure of the propeller shaft caused by an ineffective design, which could result in loss of glider propulsion during critical phases of flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the propeller shaft, the bearings, and the front drive belt retaining rings with parts of improved design in accordance with DG Flugzeugbau Technical Note No. 826/32 and WORKING INSTRUCTION No. 1 for TN 826/32.
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Compliance Time
within the next 4 calendar months after the effective date of this AD
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Affected Aircraft
Glaser-Dirks Flugzeugbau GmbH Model DG-400 gliders, all serial numbers
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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