Airworthiness directives › 2005-26-12
AD 2005-26-12 Airworthiness Directives; BURKHARDT GROB LUFT-UND RAUMFAHRT GmbH & CO KG Models G103 TWIN ASTIR, G103 TWIN II, G103A TWIN II ACRO, G103C TWIN III ACRO, and G 103 C Twin III SL Sailplanes
Applicability*9
(c) This AD affects the following model sailplanes, all serial numbers, that are certificated in any category: Models (1) G103 TWIN ASTIR (2) G103 TWIN II (3) G103A TWIN II ACRO (3) G103C TWIN III ACRO (4) G 103 C Twin III SL
Required actions
(e) To address this problem, you must do the following: Actions Compliance Procedures (1) Replace the center of gravity (CG) release hook attachment brackets with improved design brackets as follows: (i) For Models G103 TWIN ASTIR, G103 TWIN II, G103A TWIN II ACRO, and G103C TWIN III ACRO sailplanes: install new part number (P/N) 103B-2360.01/1 or 103B-2360.01/2 and P/N 103B-2360.02/1 or 103B-2360-02/2 (ii) For Models G103 TWIN ASTIR sailplanes: install an additional plate, P/N 103-2360.02 below each attachment bracket (iii) For Models G103 C TWIN III SL sailplanes: install new P/N 103B-2360.01/2 and P/N 103B-2360.02/2 For sailplanes previously affected by AD 2004-08-13: Within the next 25 hours time-in-service (TIS) after June 4, 2004 (the effective date of AD 2004-08-13), unless already done. For sailplanes not previously affected by AD 2004-08-13: Within the next 25 hours time-in-service (TIS) after February 6, 2006 (the effective date of this AD), unless already done For Models G103 TWIN ASTIR, G103 TWIN II, G103A TWIN II ACRO, and G103C TWIN III ACRO sailplanes: Follow Grob Service Bulletin No. MSB315-62, dated January 21, 2002, or Grob Service Bulletin No. MSB315-62/2, dated March 9, 2005. For Model G103 C Twin III SL sailplanes: Follow Grob Service Bulletin No. MSB869-22, dated January 22, 2002. (2) Do not install any CG release hook attachment bracket that is not a part number referenced in paragraphs (e)(1)(i) and (e)(1)(iii) of this AD, as applicable As of the effective date of this AD Not Applicable.
Unsafe condition
(d) This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions of this AD are intended to prevent abnormal or uncontrolled sailplane release due to cracked center of gravity (CG) release hook attachment brackets. This condition could result in reduced or loss of sailplane control.
Affected ADs
(b) This AD supersedes AD 2004-08-13, Amendment 39-13582.
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