93-02-11 BRITISH AEROSPACE: Amendment 39-8494. Docket 92-NM-140-AD.
Applicability: All Model HS 125-700A series airplanes, certificated in any category.
Compliance: Required as indicated, unless accomplished previously.
To prevent reduced structural integrity of the wings, accomplish the following:
(a) Within 6 months after the effective date of this AD, visually inspect left and right wing upper skins for corrosion beneath the boundary layer fence, in accordance with British Aerospace Service Bulletin S.B. 57-73, Revision 1, dated May 29, 1992.
(1) If any corroded parts are found in which the corrosion is within the limits described in British Aerospace Service Bulletin S.B. 57-73, Revision 1, dated May 29, 1992, prior to further flight, repair in accordance with that service bulletin.
(2) If any corroded parts are found in which the corrosion exceeds the limits described in British Aerospace Service Bulletin S.B. 57-73, Revision 1, dated May 29,1992, prior to further flight, repair in accordance with a method approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate.
(b) Within 10 days after accomplishing the inspection required by paragraph (a) of this AD, submit a report of inspection findings to British Aerospace, in accordance with Appendix A of British Aerospace Service Bulletin S.B. 57-73, Revision 1, dated May 29, 1992. Report all findings, including nil defects, to: Service Support Manager, BAe 125, Corporate Jets Limited (H121), Customer Support Department, Comet Way, Hatfield, Hertfordshire, AL10 9TL, England; fax 0707 253959 or 252367; telex 21429 (BAA HPS-G). Information collection requirements contained in this regulation have been approved by the Office of Management and Budget (OMB) under the provisions of the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.) and have been assigned OMB Control Number 2120-0056.
(c) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch, ANM-113.
NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113.
(d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.
(e) The inspection, repair, and report submission shall be done in accordance with British Aerospace Service Bulletin S.B. 57-73, Revision 1, dated May 29, 1992, which contains the following list of effective pages:
Page Number
Revision Level
Shown on PageDate Shown on Page
1-2
1
May 29, 1992
3-5, A1, A2, A3
Original
July 30, 1991
This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from British Aerospace, PLC, Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington, DC 20041-0414. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.
(f) This amendment becomes effective on March 26, 1993.