AD 2015-09-04 Airworthiness Directives; DG Flugzeugbau GmbH Gliders

This AD applies to DG Flugzeugbau GmbH Model DG-1000T gliders, all serial numbers, that are: (1) Equipped with a Solo Kleinmotoren Model 2350 C engine; and (2) Certificated in any category.

Unless already done, do the following actions: (1) As of November 25, 2013 (the effective date retained from AD 2013-22-14, Amendment 39-17646 (78 FR 65869, November 4, 2013)), do not operate the engine unless the engine is modified following instructions that are FAA-approved specifically for this AD. (2) Modification of an engine following the instructions in Solo Kleinmotoren Service Bulletin 4603-14, dated April 28, 2014, is not an acceptable modification to comply with paragraph (f)(1) of this AD. (3) As of May 26, 2015 (the effective date retained from AD 2015-09-04), place a copy of this AD into the Limitations section of the aircraft flight manual (AFM). (4) Within the next 30 days after May 26, 2015 (the effective date retained from AD 2015-09-04), do a one-time inspection (magnetic particle or dye penetrant) of the propeller shaft following Solo Kleinmotoren GmbH Anleitung zur Inspektion (English translation: Inspection Instruction), Nr. 4603-1, Ausgabe (English translation: dated) March 26, 2015. Note 1 to paragraph (f)(4) of this AD: This service information contains German to English translation. The EASA used the English translation in referencing the document. For enforceability purposes, we will refer to the Solo Kleinmotoren service information as it appears on the document. (5) Within the next 30 days after May 26, 2015 (the effective date retained from AD 2015-09-04), report the results of the inspection required in paragraph (f)(4) of this AD to Solo Kleinmotoren GmbH. Include the serial number of the engine and the operational time since change of the axle in your report. You may find contact information for Solo Kleinmotoren GmbH in paragraph (i)(5) of this AD. (6) At any time after June 6, 2016 (the effective date of this AD), you may modify the engine following Solo Kleinmotoren GmbH Techniseche Mitteilung (English translation: Service Bulletin) Nr. 4603-17, Ausgabe (English translation: Dated) July 15, 2015; and DG Flugzeugbau GmbH Technical note No. 1000/26, dated September 23, 2015, with 10M072 titled Propellermontage nach TM 1000-26 (English translation: Propeller assembly TN 1000-26), dated July 14, 2015. This modification allows engine operation. Note 2 to paragraph (f)(6) of this AD: This service information contains German to English translation. The EASA used the English translation in referencing the document. For enforceability purposes, we will refer to the Solo Kleinmotoren service information and the DG Flugzeugbau GmbH as it appears on the document. (7) Before further flight after doing the modification allowed in (f)(6) of this AD, remove the AD placed into the Limitations section of the AFM as required in paragraph (f)(3) of this AD.

The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Jim Rutherford, Aerospace Engineer, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4165; fax: (816) 329-4090; email: jim.rutherford@faa.gov. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. (3) Reporting Requirements: For any reporting requirement in this AD, a federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES-200.

This AD was prompted by 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 engine shaft failure with consequent propeller detachment. We are issuing this AD to prevent failure of the engine shaft with consequent propeller detachment, which could result in damage to the glider or injury of persons on the ground.

This AD replaces AD 2015-09-04, Amendment 39-18150 (80 FR 25591, May 5, 2015) (“AD 2015-09-04”).