92-06-06 GENERAL DYNAMICS: Amendment 39-8186. Docket No. 91-NM-181-AD. Supersedes AD 88-22-06, Amendment 39-6006.
Applicability: Applies to Model 340, 440, and C-131 (Military) series airplanes, all serial numbers, certificated in any category, including those modified for turbo-propeller power.
Compliance: Required as indicated, unless previously accomplished.
To ensure the continuing structural integrity of these airplanes, accomplish the following:
(a) Within one year after November 21, 1988 (the effective date of Amendment 39-6006, AD 88-22-06), incorporate a revision into the FAA-approved maintenance inspection program which provides for inspection of the Principal Structural Elements (PSE) defined in Section 3 of General Dynamics, Convair Division, "Supplemental Inspection Document (SID), Model 340/440," Report No. ZS- 340-1000, dated November 14, 1986; Addendum I, dated April 14, 1987; Addendum II, dated May 4, 1987; and Addendum III dated August 4, 1987. The non-destructive inspection techniques set forth in the SID provide acceptable methods for accomplishing the inspections required by this AD. All inspection results (negative or positive) must be reported to General Dynamics, in accordance with the instructions in the SID.
(b) Within six months after the effective date of this AD, incorporate a revision into the FAA- approved maintenance inspection program which provides for inspection of the Principal Structural Elements (PSE) defined in Section 3 of General Dynamics, Convair Division, "Supplemental Inspection Document (SID), Model 340/440," Report No. ZS-340-1000, Revision 1, dated April 15, 1991; including Addenda I, II, and III, all dated April 15, 1991.
(c) Within six months after incorporation of General Dynamics, Convair Division, "Supplemental Inspection Document (SID), Model 340/440," Report No. ZS-340-1000, Revision 1, dated April 15, 1991; including Addenda I, II, and III, dated April 15, 1991; into the FAA-approved maintenance inspection program, as required by paragraph (b) of this AD, inspect all PSE's specified in that SID that have not been inspected within the 12 calendar years. The non-destructive inspection techniques set forth in that SID provide acceptable methods for accomplishing the inspections required by this AD. All inspection results (negative or positive) must be reported to General Dynamics, in accordance with the instructions in the SID.
(d) Cracked structure detected during the inspections required by paragraph (a) or (c) of this AD must be repaired or replaced, prior to further flight, in accordance with General Dynamics, Convair Division, "Supplemental Inspection Document (SID), Model 340/440," Report No. ZS-340-1000, dated November 14, 1986; or Revision 1, dated April 15, 1991.
(e) All of the 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.
(f) 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.
(g) 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, Los Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate.
NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who may concur or comment and then send it to the Manager, Los Angeles ACO.
(h) The program revision required by paragraph (a) of this AD shall be done in accordance with General Dynamics, Convair Division, "Supplemental Inspection Document (SID), Model 340/440," Report No. ZS-34-1000, dated November 14, 1986, including Addendum I dated April 14, 1987; Addendum IIdated May 4, 1987, and Addendum III, dated August 4, 1987. The incorporation by reference of that document was approved previously by the Director of the Federal Register as of November 21, 1988 (53 FR 41157, October 20, 1988), in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. The program revision required by paragraph (b) of this AD shall be done in accordance with General Dynamics, Convair Division, "Supplemental Inspection Document (SID), Model 340/440," Report No. ZS-340-1000, Revision 1, dated April 15, 1991; including Addenda I, II, and III, all dated April 15, 1991. The incorporation by reference of that document 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 General Dynamics/Convair Division, Lindberg Field Plant, P.O. Box 85377, San Diego, California 92138, Attention: Derek Trusk. These documents may be examined at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; or the Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California; or at the Office of the Federal Register, 1100 L Street NW., Room 8401, Washington, DC.
(i) This amendment becomes effective on April 22, 1992.