90-17-09 BRITISH AEROSPACE: Amendment 39-6693. Docket No. 90-NM-53-AD.
Applicability: Model BAC 1-11 200 and 400 series airplanes, as listed in British Aerospace Alert Service Bulletin 27-A-PM587l, Issue No. 1, dated October 4, 1989, certificated in any category.
Compliance: Required as indicated, unless previously accomplished.
To prevent a reduction in airplane stability and controllability, accomplish the following:
A. Within 60 days after the effective date of this AD, unless accomplished within the last 12 months, and thereafter at intervals not to exceed 18 months, perform a visual inspection of both elevator lower control levers, in accordance with paragraphs 2.1 and 2.3 through 2.9 of British Aerospace Alert Service Bulletin 27-A-PM5871, Issue No. 1, dated October 4, 1989.
B. If cracks are found, prior to further flight, replace the elevator control lever(s) in accordance with the British Aerospace Alert Service Bulletin 27-A-PM5871, Issue No.1, dated October 4, 1989.
C. Replacement of both elevator lower control levers with levers manufactured from L64 or L99 material constitutes terminating action for repetitive inspections required by paragraph A. of this AD.
D. 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, Transport Airplane Directorate.
NOTE: The request should be submitted directly to the Manager, Standardization Branch, ANM-113, and a copy sent to the cognizant FAA Principal Inspector (PI). The PI will then forward comments or concurrence to the Manager, Standardization Branch, ANM-113.
E. 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 documents from the manufacturer may obtain copies upon request to British Aerospace, PLC, Librarian for Service Bulletins, P. O. Box 17414, Dulles International Airport, Washington, D.C. 20041. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue, S.W., Renton, Washington.
This amendment (39-6693, AD 90-17-09) becomes effective on September 17, 1990.