92-12-02 ISRAEL AIRCRAFT INDUSTRIES (IAI), LTD.: Amendment 39-8262. Docket No. 91-NM-272-AD. Supersedes AD 90-10-04, Amendment 39-6589.
Applicability: Israel Aircraft Industries (IAI), Ltd., Model 1123, 1124, and 1124A Westwind series airplanes, certificated in any category.
Compliance: Required as indicated, unless accomplished previously.
To prevent reduced controllability of the airplane, accomplish the following:
(a) Within 20 hours time-in-service after May 18, 1990 (the effective date of AD 90-10-04, Amendment 39-6589), and thereafter at intervals not to exceed 150 hours time-in-service, perform a detailed visual inspection to detect evidence of corrosion, such as pits, and/or blisters under the paint, on the lower exterior surface of the aileron torque transfer tubes, in accordance with Astra Service Bulletin 1123-27-026 (for Model 1123 Westwind series airplanes), Revision 1, dated April 25, 1990; or Astra Service Bulletin 1124-27-100 (for Models 1124 and 1124A Westwind series airplanes), Revision 1, dated April 25, 1990.
(b) If corrosion or cracks are found as a result of the inspections required by paragraph (a) of this AD, prior to further flight, remove and replace the aileron control rod assemblies with improved assemblies, P/N 513506-503 RD or RE, in accordance with Astra Service Bulletin 1123-27-026 (for Model 1123 Westwind series airplanes), Revision 1, dated April 25, 1990, or Revision 2, dated April 24, 1991; or Astra Service Bulletin 1124-27-100 (for Models 1124 and 1124A Westwind series airplanes), Revision 1, dated April 25, 1990, or Revision 2, dated April 24, 1991.
(c) Within 150 hours time-in-service after the effective date of this AD, or within 6 months after the effective date of this AD, whichever occurs first, replace the left and right aileron rod assemblies with improved rod assemblies, P/N 513506-503 RD or RE, in accordance with Astra Service Bulletin 1123-27-026 (for Model 1123 Westwind series airplanes), Revision 2, dated April 24, 1991; or Astra Service Bulletin 1124-27-100 (for Models 1124 and 1124A Westwind series airplanes), Revision 2, dated April 24, 1991.
(d) Replacement of the left and right aileron rod assemblies with improved rod assemblies, P/N 513506-503 RD or RE, in accordance with Astra Service Bulletin 1123-27-026 (for Model 1123 Westwind series airplanes), Revision 2, dated April 24, 1991; or Astra Service Bulletin 1124-27-100 (for Models 1124 and 1124A Westwind series airplanes), Revision 2, dated April 24, 1991; constitutes terminating action for the requirements of this AD.
(e) An alternative method 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. The request shall be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113.
NOTE: Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the Standardization Branch, ANM-113.
(f) 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.
(g) The inspections and replacement shall be done in accordance with Astra Service Bulletin 1123-27-026 (for Model 1123 Westwind series airplanes), Revision 1, dated April 25, 1990, or Revision 2, dated April 24, 1991; or Astra Service Bulletin 1124-27-100 (for Models 1124 and 1124A Westwind series airplanes), Revision 1, dated April 25, 1990, or Revision 2, dated April 24, 1991; as applicable. 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 Astra Jet Corporation, Technical Publications, 77 McCullough Drive, Suite 11, New Castle, Delaware 19720. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; or at the Office of the Federal Register, 1100 L Street NW., Room 8401, Washington, DC.
(h) This amendment becomes effective on July 31, 1992.