AD 2005-26-14 Airworthiness Directives; BURKHARDT GROB LUFT-UND RAUMFA HRT GmbH & CO KG Model G103 TWIN ASTIR Sailplanes

(c) This AD affects Model G103 TWIN ASTIR sailplanes, all serial numbers, that are certificated in any category.

(e) To address this problem, you must do the following:   Actions Compliance Procedures (1) Check the sailplane service history records to determine if part number (P/N) 103-3521 (or FAA-approved equivalent P/N), aluminum cast alloy elevator lever, has been replaced with P/N 103-3523 (or FAA-approved equivalent P/N), sheet aluminum elevator lever Within the next 25 hours time-in-service (TIS) after February 6, 2006 (the effective date of this AD) The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7) may check the sailplane service of history records as specified in paragraph (e)(1) of this AD. Make an entry into the aircraft records showing compliance with this portion of the AD following section 43.9 of the Federal Aviation Regulations (14 CFR 43.9). (2) If you can positively determine by checking the sailplane service history records that the replacement specified in paragraph (e)(1) of this AD has been done, no further action is required Not applicable Not applicable. (3) If you cannot positively determine by checking the sailplane service history records that the replacement specified in paragraph (e)(1) of this AD has been done, replace P/N 103-3521 (or FAA-approved equivalent P/N) with P/N 103-3523 (or FAA-approved equivalent P/N) Within the next 25 hours TIS after February 6, 2006 (the effective date of this AD) Following GROB Luft-und Raumfahrt Service Bulletin MSB 315-67/1 dated December 20, 2004. (4) 14 CFR 21.303 allows for replacement parts through parts manufacturer approval (PMA). The phrase “or FAA-approved equivalent part number” in this AD is intended to signify those parts that are PMA approved through identicality to the design of the part under the type certificate and replacement parts to correct the unsafe condition under PMA (other than identicality). If parts are installed that are identical to the unsafe parts, then the corrective actions of the AD affect these parts also. In addition, equivalent replacement parts to correct the unsafe condition under PMA (other than identicality) may also be installed provided they meet current airworthiness standards, which include those actions cited in this AD Not applicable Not applicable. (5) Do not install any P/N 103-3521 (or FAA-approved P/N equivalent to 103-3521), aluminum cast alloy elevator lever As of February 6, 2006 (the effective date of this AD) Not applicable.

(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 cracks in the elevator lever, which could cause the elevator lever to fail. This failure could result in loss of control of the sailplane.

(b) None.