AD 98-04-30
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | DG Flugzeugbau GmbH | DG-500M | Airworthiness Directives; Glaser-Dirks Flugzeugbau GmbH Model DG-500M Gliders |
Unsafe Condition
The propeller mounting plate may separate from the glider, which could result in propeller separation and possible loss of control of the glider.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 5 hours time-in-service after the effective date, inspect the propeller mounting plate for cracks every 25 hours TIS. Replace any cracked plate before further flight. Modify bolt connections by inserting an aluminum plate between the propeller mounting plate and the washers within 5 hours TIS after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 5 hours time-in-service (TIS) after the effective date of this AD, and thereafter at intervals not to exceed 25 hours TIS
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Glaser-Dirks Flugzeugbau GmbH Model DG-500M gliders, all serial numbers
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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