Airworthiness directives › 2006-08-01
AD 2006-08-01 Airworthiness Directives; BURKHART GROB LUFT-UND-RAUMFAHRT GmbH & Co. KG, Model G 103 C Twin III SL Sailplanes
Applicability*9
This AD affects the Model G 103 C Twin III SL sailplanes, serial numbers 35002 through 35051, that are certificated in any category.
Compliance
To address this problem, you must do the following: Actions Compliance Procedures Modify the propeller bearing and upper pulley wheel by installing a new securing plate, part number (P/N) 103SL-6400.12, and tightening the grooved nut, P/N 103SL-W-6400. Use the new torque values as specified in the GROB Luft-und Raumfahrt Service Bulletin MSB869-18/3, dated May 24, 2002 Within 25 engine operating hours after May 9, 2006 (the effective date of this AD) Follow GROB Luft-und Raumfahrt Service Bulletin No. 869-18, dated March 7, 1996 (including the reissued page 6 from GROB Luft-und Raumfahrt Service Bulletin No. 869-18/2, dated July 8, 1996, issued as a complement and a correction to GROB Luft-und Raumfahrt Service Bulletin No. 869-18, dated March 7, 1996) and GROB Luft-und Raumfahrt Service Bulletin MSB869-18/3, dated May 24, 2002. Use the new torque values as specified in the GROB Luft-und Raumfahrt Service Bulletin MSB869-18/3, dated May 24, 2002. Alternative Method of
Unsafe condition
This AD is the result of increased play of the propeller bearing. The actions specified in this AD are intended to prevent loss of the sailplane propeller caused by increased play in the current design propeller bearing and upper pulley wheel. This could result in loss of control of the sailplane.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1