AD 93-01-15

93-01-15 MCDONNELL DOUGLAS: Amendment 39-8469. Docket 91-NM-220-AD. Supersedes AD 87-14-06, Amendment 39-6330.

Applicability: Model DC-8 airplanes, certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To ensure the continuing structural integrity of these airplanes, accomplish the following:

(a) Within one year after August 10, 1987 (the effective date of AD 87-14-06, Amendment 39-5631), incorporate a revision into the FAA-approved maintenance inspection program which provides for inspection of the Principal Structural Elements (PSE's) defined in Section 2 of Volume I of McDonnell Douglas Report No. L26-011, "DC-8 Supplemental Inspection Document (SID)," dated December 1985, in accordance with Section 2 of Volume III of that document. The non-destructive inspection techniques set forth in Volume II of the SID provide acceptable methods for accomplishing the inspections required by this AD. All inspection results, negative or positive, must be reported to McDonnell Douglas, in accordance with the instructions of Section 2 of Volume III of the SID. 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.

(b) Within 6 months after the effective date of this AD replace the revision of the FAA-approved maintenance inspection program required by paragraph (a) of this AD with a revision that provides no less than the required inspection of the Principal Structural Elements (PSE's) defined in Sections 2 and 3 of Volume I of McDonnell Douglas Report No. L26-011, "DC-8 Supplemental Inspection Document (SID)," dated March 1991, in accordance with Section 2 of Volume III-91, dated April 1991, of that document. The non-destructive inspection techniques set forth in Sections 2 and 3 of Volume II,dated March 1991, of that SID provide acceptable methods for accomplishing the inspections required by this AD. All inspection results, negative or positive, must be reported to McDonnell Douglas, in accordance with the instructions of Section 2 of Volume III-91 of the SID. Information collection requirements contained in this regulation have been approved by the 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) Cracked structure detected during the inspections required by paragraphs (a) and (b) of this AD must be repaired before further flight, in accordance with a method approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Transport Airplane Directorate.

(d) 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, Los Angeles Aircraft Certification Office (ACO), 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, Los Angeles ACO.

NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Los Angeles ACO.

(e) 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.

(f) Certain inspections and reporting shall be done in accordance with McDonnell Douglas Report No. L26-011, "DC-8 Supplemental Inspection Document (SID)," dated December 1985, as indicated. This incorporation by reference was approved previously by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51 as of August 10, 1987 (54 FR 25591, July 8, 1987). Certain other inspections and reporting shall be done in accordance with McDonnell Douglas Report No. L26-011, "DC-8 Supplemental Inspection Document (SID)," Volume I, Revision 3, dated March 1991; Volume II, Revision 5, dated March 1991; and Volume III-91, dated April 1991. Volume I (Revision 3, dated March 1991) and Volume II (Revision 5, dated March 1991) of McDonnell Douglas Report No. L26-011, "DC-8 SID," contain the following list of effective pages:

Volume Shown On "List of Effective Pages"

Revision Level Shown on Page

Date Shown on Page Volume I List of Effective Pages A, B, C 3 March 1991

Volume II List of Effective Pages A, B, C, D, E, F, G, H, I, J, K, L 5 March 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 McDonnell Douglas Corporation, P.O. Box 1771, Long Beach, California 90846-1771, Attention: Business Unit Manager, Technical Publications -Technical Administrative Support, C1-L5B. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.

(g) This amendment becomes effective on February 26, 1993.