91-13-02 AIRBUS INDUSTRIE: Amendment 39-7033. Docket No. 90-NM-227-AD.
Applicability: Model A310-200 series airplanes, serial numbers 162 through 378, inclusive; on which Modification 4942 has not been incorporated (reference Airbus Industrie Service Bulletin A310-53-2013, Revision 1, dated April 17, 1986); certificated in any category.
Compliance: Required as indicated, unless previously accomplished.
To prevent reduced structural integrity of the fuselage, accomplish the following:
A. Prior to the accumulation of 12,000 landings, or within 6 months after the effective date of this AD, whichever occurs later, and thereafter at intervals not to exceed 3,000 landings, perform a visual inspection of the cabin floor structure between Frame 40 and Frame 46, in accordance with Airbus Industrie Service Bulletin A310-53-2056, dated April 18, 1990.
B. If cracks are found, prior to further flight, replace the affected part or modify the corresponding area in accordance with Airbus Industrie Service Bulletin A310-53-2013, Revision 1, dated April 17, 1986. The modified area no longer needs to be inspected in accordance with paragraph A. of this AD. Unmodified areas must be inspected at intervals not to exceed 3,000 landings.
C. Modification of the cabin floor structure between Frame 40 and Frame 46, in accordance with Airbus Industrie Service Bulletin A310-53-2013, Revision 1, dated April 17, 1986, constitutes terminating action for the repetitive visual inspections required by paragraphs A. and B. of this AD.
D. 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.
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 Airbus Industrie, Airbus Support Division, Avenue Didier Daurat, 31700 Blagnac, France. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington.
This amendment (39-7033, AD 91-13-02) becomes effective on July 15, 1991.