AD 2001-05-01
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.
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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).
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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.
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Affected Aircraft
DG Flugzeugbau GmbH Model DG-500MB sailplanes, all serial numbers equipped with a SOLO 2625 02 engine, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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