87-25-08 GULFSTREAM AMERICAN (FRAKES AVIATION): Amendment 39-5790. Applies to Model G-73 (Mallard) series airplanes, certificated in any category. Compliance required as indicated, unless previously accomplished.
To prevent jamming of the elevator control system, accomplish the following:
A. Within 15 days after the effective date of this AD, visually inspect the overlapping contact surface between the elevator control torque tube arm, P/N 109410, and the elevator up stop bolt hex head, P/N G19-5-22, in accordance with Frakes Aviation Service Bulletin G-73-FA26, dated May 1, 1987 (hereinafter referred to as SB G-73-FA26), or later FAA-approved revisions.
1. If the elevator control torque tube arm is not overlapping the stop bolt hex head by one-half or more of the stop bolt hex head dimension, or if the center lines of the stop bolt hex head and the elevator control torque tube arm are not aligned within 1/8 inch (0.125 inch) side to side, prior to further flight install Frakes Aviation Stop Kit, P/N FA112723K1, in accordance with SB G-73-FA26, or later FAA-approved revision.
2. If the elevator control tube arm is overlapping the stop bolt hex head by one-half or more of the stop bolt hex head dimension, and if the center lines of the stop bolt hex head and the elevator control torque tube are aligned within 1/8 inch (0.125 inch) side to side, within the next 100 hours time-in-service install Frakes Aviation Stop Kit, P/N FA112723K1, in accordance with SB G-73-FA26, or later FAA-approved revisions.
B. 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 requirements of this AD.
C. An alternate means of compliance, which provides an acceptable level of safety, may be used when approved by the Manager, Airplane Certification Branch, FAA, Southwest Region.
All persons affected by this directive who have not already received the appropriate service document from the manufacturer may obtain copies upon request to Frakes Aviation, Cleburne Airport, Route 3, Box 229-B, Cleburne, Texas 76031. This document may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or FAA, Southwest Region, 4400 Blue Mound Road, Fort Worth, Texas.
This amendment becomes effective January 19, 1988.