Airworthiness Directive · Amendment 39-16027 · Flight controls
Glaser-Dirks Flugzeugbau GmbH Model DG-100 Gliders
This AD applies to Model DG-100 gliders, serial numbers 5 and 21 through 103, certificated in any category.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Unless already done, do the following actions.
(1) Before further flight after October 19, 2009 (the effective date of this AD), inspect the bearing stand RU19 following paragraph 1 of the Instructions section of DG Flugzeugbau Technical note No. 301/26, Rev. 1, dated August 4, 2009. You may take credit for this paragraph if the bearing stand was inspected before October 19, 2009 (the effective date of this AD) following DG Flugzeugbau Technical note No. 301/26, dated July 16, 2009.
(2) If any discrepancy is found (crack, delamination, etc.), before further flight replace the bearing stand RU19 following paragraph 3 of the Instructions section of DG Flugzeugbau Technical note No. 301/26, Rev. 1, dated August 4, 2009.
(3) Within 3 months after October 19, 2009 (the effective date of this AD) replace the bearing stand RU19 following paragraph 3 of the Instructions section of DG Flugzeugbau Technical note No. 301/26, Rev. 1, dated August 4, 2009. You may take credit for this paragraph if the bearing stand RU19 has been replaced before October 19, 2009 (the effective date of this AD) following DG Flugzeugbau Technical note No. 301/6, dated May 29, 1978, or following paragraph 3 of the Instructions section of DG Flugzeugbau Technical note No. 301/26, dated July 16, 2009.
Note: This AD differs from the MCAI and/or service information as follows: (1) DG Flugzeugbau GmbH Technical Note No. 301/26, Rev. 1, dated August 4, 2009, states that instruction 1 may be executed by the pilot/owner. By FAA regulations, this AD requires all affected gliders to have the required actions done by an appropriately rated mechanic. (2) The MCAI states to do the actions following DG Flugzeugbau GmbH Technical Note No. 301/26, dated July 16, 2009. DG Flugzeugbau GmbH updated the technical note after the MCAI was issued. We are requiring you use the updated technical note (DG Flugzeugbau GmbH Technical Note No. 301/26, Rev. 1, dated August 4, 2009) to do the actions of this AD, unless the AD specifies otherwise.
