91-18-01 AIRBUS INDUSTRIE: Amendment 39-8004. Docket No. 91-NM-135-AD.
Applicability: Model A300 B2-1C, B2K-3C, and B2-203 series airplanes, on which Modification Number 7811H1110 (described in Airbus Industrie Service Bulletin A300-57-165, dated May 21, 1990) has not been accomplished, certificated in any category.
Compliance: Required as indicated, unless previously accomplished.
To prevent reduced structural integrity of the wings, accomplish the following:
(a) Prior to the accumulation of 11,000 landings, or within the next 25 landings after the effective date of this AD, whichever occurs later, perform a high frequency eddy current inspection of the vertical web of the front spar of both wings between ribs 10 and 11 to detect cracks, in accordance with Airbus Industrie All-Operators Telex (AOT) 57-03, Issue 2, dated June 13, 1991. Repeat this inspection at intervals not to exceed 25 landings thereafter, in accordance with AOT 57-04, dated June 21, 1991.(b) If cracks are found as a result of the initial or repetitive inspections, repair prior to further flight, in accordance with Airbus Industrie All-Operators Telex 57-03, Issue 2, dated June 13, 1991.
(c) 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.
NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113.
(d) 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.
(e) The inspection and repair requirements shall be done in accordance with Airbus Industrie All-Operators Telex (AOT) 57-03, Issue 2, dated June 13, 1991, and AOT 57-04, dated June 21, 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 Airbus Industrie, Airbus Support Division, Avenue Didier Daurat, 31700 Blagnac, France. Copies may be inspected at the FAA, Transport Airplane Directorate, Renton, Washington; or at the Office of the Federal Register, 1100 L Street N.W., Room 8401, Washington, D.C.
This amendment (39-8004, AD 91-18-01) becomes effective on September 3, 1991.