AD 2001-05-01

final rule
Data completeness: 70%

Airworthiness Directives; DG Flugzeugbau GmbH Model DG-500MB Sailplanes

AD Number
2001-05-01
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 99-CE-89-AD
FR Citation
66 FR 14304

Unsafe Condition

An inadequate circuit breaker and unsatisfactory drive belt tension could cause damage to the engine crankshaft, leading to engine failure and loss of control of the sailplane.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Remove the engine from the propeller mount, install additional access holes in the propeller mount, install the modified engine, perform a ground test run, and replace the digital engine indicator circuit breaker with a 5 ampere Klixon 7277-2-5A circuit breaker (or FAA-approved equivalent).

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within the next 25 hours time-in-service after April 27, 2001, for engine removal. Other actions must be completed before further flight.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

DG Flugzeugbau GmbH Model DG-500MB sailplanes, all serial numbers equipped with a SOLO 2625 02 engine, certificated in any category.

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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