# AD 86-17-08: Airbrake Pivot Lever Stop Pad - Type: Airworthiness directive - Status: Current - Products: Burkhart Grob Luft-Und G103 Twin II and G103A Twin II Acro - Effective: September 10, 1986 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Glider - Amendment: 39-5399 - Registered aircraft: 56 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9643C5896B703DF586256A4E004CADE1.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/86-17-08 ## The airworthiness directive 86-17-08 GROB WERKE GmbH (Burkhart Grob): Amendment 39-5399. Applies to Models G103 TWIN II and G103A TWIN II ACRO gliders serial numbers 33879- (K-117) through 34012-(K-245) certificated in any category. Compliance is required as indicated unless already accomplished. To prevent jamming of the outer airbrake pivot lever which could result in the loss of airbrake control, accomplish the following: (a) Within the next 10 hours time-in-service after the effective date of this AD, measure the airbrake pivot lever stop pad length in accordance with Part 1 of the "Instructions" section of Grob Technical Information No. TM 315-31, dated October 7, 1985. (b) If a stop pad of a length of less than 36 mm is found during the inspection required by Paragraph (a) of this AD, or if a stop pad is found that can be wedged under the wingskin, before further flight, install a stop pad extension in accordance with part 2 of the "Instructions" section of Grob Technical Information No. TM 315-31, dated October 7, 1985, and Grob Repair Instructions No. 315-31, dated October 7, 1985. Upon request, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Brussels Aircraft Certification Office, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, 15 Rue de la Loi B-0040 Brussels, Belgium, Telephone No. 513.38.30 ext. 2710 or the Manager, New York Aircraft Certification Office, Aircraft Certification Division, FAA, New England Region, 181 South Franklin Avenue, Room 202, Valley Stream, New York 11581, Telephone No. (516) 791-6680. Upon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the Manager, Brussels Aircraft Certification Office or the Manager, New York Aircraft Certification Office, may adjust the compliance time specified in this AD. Grob Technical Information No. TM 315-31, dated October 7, 1985, and Grob Repair Instructions No. 315-31, dated October 7, 1985, identified and described in this document, are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Grob Systems, Inc., Aircraft Division, I-75 and Airport Drive, Bluffton, Ohio 45817. These documents also may be examined at the Office of Regional Counsel, ANE-7, FAA New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803, Room 311, Rules Docket 86-ANE-32, between the hours of 8:00 am and 4:30 pm; Monday thru Friday, except Federal holidays. This amendment becomes effective on September 10, 1986. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS G39EU](https://openairdocs.org/tcds/G39EU): Fiberglas-Technik Rudolf Lindner GmbH & Co. KG; names 2 of 4 models: G103A Twin II Acro, G103 Twin II ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 56 (56 by airframe model, 0 by engine model) - Makers: Burkhart Grob 56 Models with the most aircraft: - [Burkhart Grob G 103 TWIN II](https://openairdocs.org/model/burkhart-grob-g-103-twin-ii): 30 aircraft (airframe model) - [Burkhart Grob G-103A TWIN II ACRO](https://openairdocs.org/model/burkhart-grob-g-103a-twin-ii-acro): 26 aircraft (airframe model) All 2 models: https://openairdocs.org/ad/86-17-08/models.md Every aircraft: https://openairdocs.org/ad/86-17-08/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.