AD 83-16-02

83-16-02 SCHEMPP-HIRTH GMBH AND COMPANY KG: Amendment 39-4664. Applies to Model "Standard Cirrus" sailplanes, certificated in any category.

Compliance is required within the next 100 hours time in service or within 120 days, whichever occurs first, after the effective date of this AD, unless already accomplished within the last 400 hours time in service, and thereafter at intervals not to exceed 500 hours time in service from the last replacement.

To prevent fatigue fracture of the air brake drive lever ball joints, remove the two ball joints in the air brake drive lever in the fuselage and install new ball joints, P/N MS 961-150-150, in accordance with Schempp-Hirth Technical Note No. 278-23 (LBA-approved), dated January 11, 1979, or an FAA-approved equivalent.

An equivalent means of compliance may be approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, Brussels, Belgium, or the Manager,Boston Aircraft Certification Branch, ANE-150, Federal Aviation Administration, 12 New England Executive Park, Burlington, Massachusetts 01803.

The Schempp-Hirth GmbH and Company KG Technical Note number 278-23 dated January 11, 1979, identified and described in this directive is incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Schempp-Hirth GmbH and Company KG, Krenbenstrasse 25, 7312 Kirchheim-Teck, Federal Republic of Germany. These documents also may be examined at the Office of Regional Counsel, 12 New England Executive Park, Burlington, Massachusetts 01803.

This amendment becomes effective August 24, 1983.