AD Amdt-39-10216
Unsafe Condition
Increased play (movement exceeding or equal to 0.4 mm) in the propeller bearing and upper pulley wheel could lead to loss of the sailplane engine propeller and possible loss of the sailplane.
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Required Actions
Within 5 engine operating hours after the effective date, inspect the propeller bearing and upper pulley wheel for increased play. If play is found, modify the components with improved parts before further flight. If no play is found, continue repetitive inspections every 5 engine hours until modification is required.
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Compliance Time
Within 5 engine operating hours after the effective date
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Affected Aircraft
Burkhart Grob, Luft-und Raumfahrt Model G 103 C Twin III SL Sailplanes (serial numbers 35002 through 35051)
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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