87-17-12: Elevator and Rudder Control System

87-17-12 SHORT BROTHERS PLC: Amendment 39-5717. Applies to Model SD3-30 series airplanes, serial numbers SH3002 through SH3099, SH3102, and SH3105, certificated in any category. Compliance required as indicated, unless previously accomplished. To prevent interference with the elevator and rudder control system, accomplish the following: A. Within 180 days after the effective date of this AD, install an extended guard behind the overhead lockers in accordance with the Accomplishment Instructions of Shorts Service Bulletin No. SD330-27-31, dated March 1986. 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. 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 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 22022-3702. 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 28, 1987.