85-22-11 R1 GLASFLUGEL: Amendment 39-5291. Applies to "Standard Libelle" and "Standard Libelle-201B" (aircraft serial numbers 1 through 476), and H301 and H301B "Libelle" (all aircraft serial numbers) gliders.
Compliance is required as indicated unless already accomplished.
To prevent fatigue failure of the elevator linkage in the area of the welded seam at the base of the control stick which could result in loss of elevator control, accomplish the following:
(a) Within the next 10 hours time in service after the effective date of this AD, and thereafter at intervals not to exceed 10 hours time in service after the last inspection, unless compliance with paragraph (c) is already accomplished, visually inspect the elevator linkage, part number (P/N) 301-41-3/2, by means of a magnifying glass of at least 5 times magnification for cracks in the area of the welded seam at the base of the control stick.
(b) If a crack is found during the inspection required by paragraph (a) of this AD, before further flight, replace elevator linkage, P/N 301-41-3/2, with a serviceable part.
(c) Within the next 50 hours time in service after the effective date of this AD, but no later than July 1, 1986, replace the elevator linkage, P/N 301-41-3/2, with P/N 301-41-4/2, in accordance with Glasflugel Technical Notes Nos. 201-22, dated July 29, 1980, for Models "Standard Libelle" and "Standard Libelle-201B", and 301-31, dated July 29, 1980, for Models H 301 and H301B "Libelle" gliders, or an FAA-approved equivalent.
Upon request, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Brussels Aircraft Certification Office, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, 15 Rue de la Loi B-1040 Brussels, Belgium, telephone 513.38.30 ext. 2710.
Upon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the Manager, Brussels Aircraft Certification Office, may adjust the compliance time specified in this AD.
Glasflugel Technical Notes Nos. 201-22 and 301-31, dated July 29, 1980, identified and described in this document, are 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 Mr. Hansjoerg Streifender, Bruelstrasse 12, 7318 Lenningen 2, Federal Republic of Germany. These documents also may be examined at Regional Counsel, ANE-7, FAA New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803.
This amendment becomes effective May 6, 1986, as to all persons except those persons to whom it was made immediately effective by priority letters AD No. 85-22-11 and 85-22-11R1, issued October 30 and December 31, 1985, respectively, which contained this amendment.