AD 89-07-03

89-07-03 SHORT BROTHERS, PLC: Amendment 39-6159. Applicability: Model SD3-30 series airplanes, equipped with Menasco nose landing gear, Part No. 18001, having nose landing gear Serial Numbers 017 through 097 with pintle pins P/N 18109-3 or 18110-3 installed, certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To prevent collapse of the nose landing gear, accomplish the following:

A. Prior to the accumulation of 30,000 landings on the nose landing gear pintle pins, or within the next 250 landings after the effective date of this AD, whichever occurs later, and thereafter at intervals not to exceed 30,000 landings, replace nose landing gear pintle pins, part number (P/N) 18109-3 and 18110-3 pintle pins, in accordance with Short Service Bulletin SD330- 32-119, dated February 1988.

NOTE: Shorts Service Bulletin SD330-32-119 references Menasco Service Bulletin 32- 69, dated August 11, 1981, for instructions for accomplishing the pintle pin replacement.

B. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Northwest Mountain Region.

NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who may add any comments and then send it to the Manager, Standardization Branch, ANM-113.

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 Short Brothers PLC, 2011 Crystal Drive, Suite 713, Arlington, Virginia 22202-3702. 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 (39-6159, AD 89-07-03) becomes effective April 26, 1989.