87-16-09 SHORT BROTHERS PLC: Amendment 39-5698. Applies to Model SD3-60, serial numbers SH3601 through SH3679, certificated in any category. Compliance required within 90 days after the effective date of this AD, unless previously accomplished.
To prevent the potential for the loss of recorded information from the flight data recorder, due to corrosion, accomplish the following:
A. Install a flight data recorder cover in accordance with the Shorts Service Bulletin No. SD360-31-04, Revision No. 2, dated October 1986.
B. Inspect the installed flight data recorder for corrosion of the circuit cards and correct as required in accordance with the appropriate recorder maintenance manual.
C. 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.
D. Special flight permits may be issued in accordancewith FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of the modifications required by this AD.
All persons affected by this directive who have not already received the appropriate service document from the manufacturer may obtain copies upon request to Shorts Aircraft, 2011 Crystal Drive, Suite 713, Arlington, Virginia 22202-3702. This document may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington.
This amendment becomes effective September 10, 1987.