88-11-08 BRUCE INDUSTRIES, INC.: Amendment 39-5932. Applies to all ballasts, Part Number 05241-1, as installed on, but not limited to, aircraft modified in accordance with Supplemental Type Certificate (STC) Numbers SA1081NW, SA1315NM, SA1952NM, SA3144NM, and SA4042WE; and Civil Aviation Authority Airworthiness Approval Note No. 17027, Issue 2.
Compliance required as indicated.
NOTE: HITCO Alert Service Bulletin A9000203-33-20-01, dated May 2, 1988, lists specific aircraft modified in accordance with the referenced STC's; however, these ballasts may also be installed on other aircraft.
To prevent fire caused by shorted and sparking ballast, accomplish the following, unless already accomplished:
A. Within 30 days after the effective date of this airworthiness directive (AD), install a fuse assembly for each affected ballast in accordance with the accomplishment instructions of Bruce Industries, Inc., Alert Service Bulletin A05241-33-20-01, dated May 2, 1988.NOTE: HITCO Alert Service Bulletin A9000203-33-20-01, dated May 2, 1988, is considered an approved equivalent modification.
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, Los Angeles Aircraft Certification Office, 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 Los Angeles Aircraft Certification Office.
C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.
All persons affected by this directive who have not already received the appropriate service information from the manufacturer may obtain copies upon request to Bruce Industries, Inc., P.O. Box 1700, Dayton, Nevada 89403, Attention: Contracts Department; or (for airplanes with HITCO cabin interiors) HITCO, 1600 West 135th Street, Gardena, California 90249, Attention: Contracts Department. This information may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or the Los Angles Aircraft Certification Office, 4344 Donald Douglas Drive, Long Beach, California.
This Amendment 39-5932 becomes effective June 10, 1988.