The bulletin
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FAA Aircraft Certification Service
SPECIAL AIRWORTHINESS
INFORMATION BULLETIN SUBJ: Engine Fuel and Control SAIB: CE-08-06 Date: November 14, 2007 This is information only. Recommendations aren’t mandatory.
Introduction
This Special Airworthiness Information Bulletin informs you of an airworthiness concern for Alexander Schleicher powered sailplane Model ASW 28-18E, all serial numbers up to 28742 inclusive. The European Aviation Safety Agency (EASA) has issued emergency airworthiness directive (AD) number 2007-0042, dated February 21, 2007, for those sailplanes registered for operation in Europe. That AD is based on Alexander Schleicher Technical Note No. 2, dated September 1, 2006; EASA approved on November 13, 2006.
Background
During manufacturer inspections, cracks were found on the RPM sensor and fuel pump attachment plates. These cracks could lead to loose parts, which may adversely affect engine operation. For airplanes operating in Europe, the EASA AD requires replacing the RPM sensor and fuel pump attachment plates, updating the engine instrument hardware, and replacing a page in the flight manual.
Recommendations
These sailplanes are not type certificated in the United States and, therefore, the condition is not addressed by FAA AD action. However, these sailplanes could be operating in the United States with an experimental airworthiness certificate or other means. We recommend all owners and operators comply with actions outlined in Alexander Schleicher Technical Note No. 2.
For Further Information Contact
Gregory Davison, Aerospace Engineer, FAA Small Airplane Directorate, Room 301, 901 Locust, Kansas City, Missouri 64106; telephone: (816) 329-4130; facsimile: (816) 329-4090; email:
Gregory.Davison@faa.gov
For Related Service Information Contact
Alexander Schleicher GmbH & Co, Alexander Schleicher Str. 1, D-36163 Poppenhausen (Wasserkuppe) Phone: +49 6658 89-0 Fax: +49 6658 89-40 Email: info@alexander-schleicher.de.
ILEC GmbH Friedrich-Puchta-Str. 6 D-95444 Bayreuth Phone: +49 921 13733 Fax: +49 921 82731 Email: ILECgmbh@t-online.de
Registered aircraft it may concern
Registry models matched by Schleicher, Alexander, GmgH ASW-28, the same way as ADs, with the most registered aircraft first.