88-18-06: Cabin Tubular Structure

88-18-06 MORAVAN: Amendment 39-5994. Applies to Model ZLIN 526L (all serial numbers) airplanes certificated in any category. Compliance: Required within the next 100 hours time-in-service (TIS) after the effective date of this AD and every 100 hours TIS thereafter, unless already accomplished. To preclude structural airframe failure, accomplish the following: (a) Visually inspect, using a 3-power magnifying glass, the forward portion of the cabin area tubular structure around the airplane leveling points, for cracks using supplementary lighting as required in accordance with MORAVAN Mandatory Service Bulletin Z526L, dated July 30, 1987. If a crack is found, before further flight repair the crack in accordance with instructions from MORAVAN approved by the Manager, Aircraft Certification Staff, AEU-100. (b) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished. (c) An equivalent means of compliance with this AD may beused if approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, B- 1000 Brussels, Belgium. All persons affected by this directive may obtain copies of the document referred to herein upon request to Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, B-1000 Brussels, Belgium; or MORAVAN National Corp., 765-81 Otrokovice, Czechoslovakia; or may examine this document at the FAA, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106. This amendment, 39-5994, becomes effective on September 8, 1988.