AD 2007-01-03 Airworthiness Directives; Stemme GmbH & Co. KG Model S10-VT Gliders

This AD applies to Model S10-VT gliders, serial numbers 11-001 through 11-104, certificated in any category. Reason (d) The mandatory continuing airworthiness information (MCAI) states that: During certification works it was found that the cooling liquid EVANS NPG+ is flammable. The liquid cooling circuit of the Stemme S10-VT is not designed to be filled with a flammable liquid without prior modifications. For that reason, this Emergency AD requires the replacement of the EVANS NPG+ cooling liquid. In addition, the operation limit of the cylinder head temperature must be temporary changed to 120 °C/248 °F.

Prior to further flight as of January 29, 2007 (the effective date of this AD), unless already done, do the following actions. (1) Replace the EVANS NPG+ cooling liquid in accordance with the instructions of Stemme F&D Service Bulletin A31-10-076 Am. Index: 01.a, dated October 9, 2006; (2) Amend the Limitations and Normal Procedures Sections of the Airplane Flight Manual (AFM) to include the temporary operation limit of the cylinder head temperature to 120 °C/248 °F. This may be accomplished by inserting a copy of this AD into the AFM, affecting pages 2-3, 2-6, and 4-12; (3) Apply two red lines on the Cylinder Head Temperature Gauge for the L/H and R/H cylinder head temperature at 120 °C/248 °F; and (4) Replace the radiator cap part number 922075 (0.9 bar/13 psi) (or FAA approved equivalent) with a new radiator cap part number 922070 (1.2 bar/18 psi) (or FAA approved equivalent). Rotax Aircraft Engines Service Instruction SI-25-1997 R8 and Rotax Service Bulletin Sb-914-029 R2 reference this requirement. FAA AD Differences Note: This AD differs from the MCAI and/or service information by adding the action to replace the radiator cap. Other FAA AD Provisions (f) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Staff, FAA, ATTN: Greg Davison, Glider Program Manager, 901 Locust, Room 301, Kansas City, Missouri, 64106; telephone: (816) 329-4130; fax: (816) 329-4090, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. (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, under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq. ), the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120-0056. Related Information (g) Refer to European Aviation Safety Agency (EASA) AD No.: 2006-0311-E, dated October 11, 2006, and Stemme F&D Service Bulletin A31-10-076 Am. Index: 01.a, dated October 9, 2006, for related information. Material Incorporated by Reference (h) You must use Stemme F&D Service Bulletin A31-10-076 Am. Index: 01.a, dated October 9, 2006, to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact STEMME GmbH & Co. KG, Flugplatzstraβe F2, Nr. 7, D-15344 Strausberg, Germany; telephone: + 49.33 41/36 12-0; fax: +49.33 41/36 12-30; e-mail: P.Ellwanger@stemme.de. (3) You may review copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Kansas City, Missouri 64106; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html. Issued in Kansas City, Missouri on December 27, 2006. John R. Colomy, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E6-22620 Filed 1-8-07; 8:45 am] BILLING CODE 4910-13-P

Prior to further flight as of January 29, 2007 (the effective date of this AD), unless already done, do the following actions. (1) Replace the EVANS NPG+ cooling liquid in accordance with the instructions of Stemme F&D Service Bulletin A31-10-076 Am. Index: 01.a, dated October 9, 2006; (2) Amend the Limitations and Normal Procedures Sections of the Airplane Flight Manual (AFM) to include the temporary operation limit of the cylinder head temperature to 120 °C/248 °F. This may be accomplished by inserting a copy of this AD into the AFM, affecting pages 2-3, 2-6, and 4-12; (3) Apply two red lines on the Cylinder Head Temperature Gauge for the L/H and R/H cylinder head temperature at 120 °C/248 °F; and (4) Replace the radiator cap part number 922075 (0.9 bar/13 psi) (or FAA approved equivalent) with a new radiator cap part number 922070 (1.2 bar/18 psi) (or FAA approved equivalent). Rotax Aircraft Engines Service Instruction SI-25-1997 R8 and Rotax Service Bulletin Sb-914-029 R2 reference this requirement. FAA AD Differences Note: This AD differs from the MCAI and/or service information by adding the action to replace the radiator cap. Other FAA AD Provisions (f) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Staff, FAA, ATTN: Greg Davison, Glider Program Manager, 901 Locust, Room 301, Kansas City, Missouri, 64106; telephone: (816) 329-4130; fax: (816) 329-4090, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. (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, under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq. ), the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120-0056. Related Information (g) Refer to European Aviation Safety Agency (EASA) AD No.: 2006-0311-E, dated October 11, 2006, and Stemme F&D Service Bulletin A31-10-076 Am. Index: 01.a, dated October 9, 2006, for related information. Material Incorporated by Reference (h) You must use Stemme F&D Service Bulletin A31-10-076 Am. Index: 01.a, dated October 9, 2006, to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact STEMME GmbH & Co. KG, Flugplatzstraβe F2, Nr. 7, D-15344 Strausberg, Germany; telephone: + 49.33 41/36 12-0; fax: +49.33 41/36 12-30; e-mail: P.Ellwanger@stemme.de. (3) You may review copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Kansas City, Missouri 64106; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html. Issued in Kansas City, Missouri on December 27, 2006. John R. Colomy, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E6-22620 Filed 1-8-07; 8:45 am] BILLING CODE 4910-13-P