88-03-05 HAMBURGER FLUGZEUGBAU: Amendment 39-5834. Applies to Model HFB- 320-HANSA series airplanes, Serial Numbers 1021, 1023, 1026, 1030, 1033, 1035, 1040, 1045, and 1050-1057, certificated in any category. Compliance required as indicated, unless previously accomplished:
To prevent asymmetric configuration which may cause degradation of lateral control, accomplish the following:
A. Within 30 days after the effective date of this AD, inspect and replace, as necessary, the bolts, drive shafts, and rotary selectors for the wing flaps, slats, and speed brakes, in accordance with Messerschmitt-Bolkow-Blohm GmbH Service Bulletin 27-74, dated July 1, 1986.
B. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety and which has the concurrence of an FAA Principal Maintenance Inspector, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Northwest Mountain Region.
C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD.
All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to Messerschmitt- Bolkow- Blohm GmbH, Postfach 95 01 09, D-2103 Hamburg 95, Federal Republic of Germany. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington.
This amendment becomes effective February 28, 1988.