Airworthiness directives › 2003-19-13
AD 2003-19-13 Airworthiness Directives; Grob-Werke Model G120AA Airplanes
Applicability*9
(c) This AD affects the following airplane models and serial numbers that are certificated in any category: Model Serial Nos. G120A All.
Required actions
(e) To address this problem, you must accomplish the following: Actions Compliance Procedures (1) Inspect the flight control system operating levers for damaged ball bearings and replace any lever with a damaged ball bearing Inspect within the next 50 hours time-in-service (TIS) after November 11, 2003 (the effective date of this AD). Replace levers with damaged ball bearings prior to further flight after the inspection In accordance with GROB Service Bulletin No. MSB1121-033, dated May 8, 2003 (which includes Attachment 1, dated May 8, 2003). (2) Accomplish the modifications to: (a) elevator rod 1, part number (P/N) 120A-4400.08 or part number 120A- 4217 (which supersedes P/N 120A- 4400.08); and (b) the flight control system operating levers. Within the next 50 hours TIS after November 11, 2003 (the effective date of this AD) In accordance with GROB Service Letter No. SL1121-009, dated May 23, 2003, and GROB Service Bulletin No. MSB1121-034, dated May 19, 2003 (which includes Attachment 1, dated May 19, 2003). (3) Only install flight control system operating levers that have been modified in accordance with paragraph (e)(2)(a) and (e)(2)(b) of this AD As of November 11, 2003 (the effective date of this AD)
Unsafe condition
(d) This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions specified in this AD are intended to prevent failure of a ball bearing in the flight control system operating levers. Such failure could lead to reduced control or loss of control of the airplane.
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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