Airworthiness Directive · Amendment 39-16036 · Flight controls
Glaser-Dirks Flugzeugbau GmbH Model DG-100 Gliders
This AD applies to Model DG-100 gliders, all serial numbers, 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 21, 2009 (the effective date of this AD), inspect the control column rod end following paragraph 1 of the Instructions section of DG Flugzeugbau Technical note No. 301/25, 323/16, Rev. 1, dated August 4, 2009.
(2) If, during the inspection, an X is not found on the rod end, replace the rod end with a high-strength steel rod end (identified with an X on the rod end) following paragraph 2 of the Instructions section of DG Flugzeugbau Technical note No. 301/25, 323/16, Rev. 1, dated August 4, 2009, as follows:
(i) Before further flight if any defects (cracks, corrosion pits, etc.) are found; or
(ii) Within 3 months after October 21, 2009 (the effective date of this AD) if no defects are found.
(3) As of the effective date of this AD, adhere to the following using the referenced service information:
(i) If installing a rod end without an X, ensure it has passed the inspection in paragraph (f)(1) of this AD and replace it with one with an X no later than 3 months after October 21, 2009 (the effective date of this AD); and
(ii) As of 3 months after October 21, 2009 (the effective date of this AD), only install a rod end with an X.
Note: This AD differs from the MCAI and/or service information as follows: (1) DG Flugzeugbau GmbH Technical Note No. 301/25, 323/16, 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. 301/25 or DG Flugzeugbau GmbH Technical Note No. 323/16, both initial issue dated July 17, 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. 301/25, 323/16, Rev. 1, dated August 4, 2009) to do the actions required.
