AD 93-13-04

93-13-04 FOKKER: Amendment 39-8617. Docket 91-NM-121-AD. Supersedes AD 89-07-16 R1, Amendment 39-6444. Applicability: Model F28 Mark 1000, 2000, 3000 and 4000 series airplanes, certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent reduced structural integrity of these airplanes, accomplish the following:

NOTE 1: This AD references Fokker Structural Integrity Program (SIP) Document 28438, Part I, including revisions up through November 1, 1988; and Fokker SIP Document 28438, Part I, including revisions up through October 15, 1992; for inspection procedures, compliance times, repairs, replacement and reporting requirements. In addition, this AD specifies compliance times different from those included in the SIP Document. Where there are differences between the AD and the SIP Document, the AD prevails.

NOTE 2: Cracked structure detected during the inspections required by paragraph (a) or (b) of this AD that is repaired or replaced in accordance with data meeting the certification basis of the airplane and approved by the Rijksluchtvaartdienst (RLD) is equivalent to FAA approval and constitutes an acceptable method of compliance.

(a) Within six months after February 5, 1990 (the effective date of Amendment 39-6444, AD 89-07-16 R1), incorporate into the FAA-approved maintenance program the inspections, inspection intervals, repairs, or replacements defined in the Fokker Structural Integrity Program (SIP) Document 28438, Part I, including revisions up through November 1, 1988; and inspect, repair, and replace, as applicable. The non-destructive inspection techniques referenced in this document provide acceptable methods for accomplishing the inspections required by this AD. Inspection results, where a crack is detected, must be reported to Fokker, in accordance with the instructions of the SIP document. Information collection requirements contained in this regulation have beenapproved 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 six months after the effective date of this AD, replace the revision of the FAA-approved maintenance program required by paragraph (a) of this AD with the inspections, inspection intervals, repairs, or replacements defined in the Fokker SIP Document 28438, Part I, including revisions up through October 15, 1992; and inspect and repair, or replace, as applicable. The non-destructive inspection techniques referenced in this document provide acceptable methods for accomplishing the inspections required by this AD. Inspection results, where a crack is detected, must be reported to Fokker, in accordance with the instructions of the SIP document. Information collection requirements contained in this regulation have been approved by the Office of Management and Budget (OMB) under theprovisions 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 paragraph (a) or (b) of this AD must be repaired or replaced, prior to further flight, in accordance with the instructions in Fokker SIP Document 28438, Part I, including revisions up through November 1, 1988 [for airplanes inspected in accordance with paragraph (a) of this AD]; or Fokker SIP Document 28438, Part I, including revisions up through October 15, 1992 [for airplanes inspected in accordance with paragraph (b) of this AD]; or in accordance with other data meeting the certification basis of the airplane which is approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate, or by the RLD.

(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, Standardization Branch, ANM-113, 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, Standardization Branch, ANM-113.

NOTE 3: Repairs approved as alternative methods of compliance for AD 89-07-16 R1 constitute valid approvals for compliance with this AD, unless otherwise specified.

NOTE 4: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113.

(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) The inspections, repair, and replacement procedures shall be done in accordance with Fokker Structural Integrity Program (SIP) Document 28438, Part 1, revised up through October 15, 1992, which contains the following list of effective pages:

Item Number

Page Number Revision Level Shown on Page Date Shown on Page

INTRODUCTION - 1-27 - October 15, 1992

INSPECTIONS 27-20-01 1 - March 1, 1982 27-30-01 1 3 August 31, 1990 27-40-01 1 2 August 31, 1990 27-50-01 1 2 March 20, 1986 27-50-02 1 2 March 20, 1986 27-50-03 1 2 March 20, 1986 27-50-04 1 2 March 20, 1986 27-50-05 1 - March 1, 1982 27-50-06 1 - March 1, 1982 27-50-07 1 2 August 31, 1990 27-50-08 1 3 August 31, 1990 27-50-09 1 3 August 31, 1990 27-50-10 1 1 August 31, 1990 27-61-01 1 1 August 31, 1990 27-61-02 1 2 October 15, 1992 27-61-03 1 2 August 31, 1990 27-63-01 1 1 August 31, 1990 27-63-02 1 - March 1, 1982 27-63-03 1 1 November 1, 1988 27-63-04 1 1 August 31, 1990 27-63-05 1 1 November 1, 1988 29-10-01 1 1 August 31, 1990 32-10-01 1 1 August 31, 1990 32-10-02 1 1 August 31, 1990 32-10-03 1 1 August 31, 1990 32-10-04 1 1 August 31, 1990 32-10-05 1 3 October 15, 1992 32-30-01 1 1 October 15, 1992 32-42-01 1 1 August 31, 1990 32-42-02 1 1 August 31, 1990 32-50-01 1 3 October 15, 1992 52-10-01 1 2 May 1, 1984 52-10-01 2 - May 1, 1984 52-10-02 1 2 August 31, 1990 52-10-03 1 3 October 15, 1992 52-10-05 1 - October 15, 1992 52-20-01 1 6 October 15, 1992 52-20-02 1 5 October 15, 1992 52-30-01 1 2 August 31, 1990 52-30-02 1 2 August 31, 1990 52-30-03 1 2 August 31, 1990 52-30-04 1 2 August 31, 1990 52-30-05 1 3 October 15, 1992 52-30-05 2 4 October 15, 1992 52-30-06 1 2 October 15, 1992 52-30-07 1 2 October 15, 1992

Item Number

Page Number Revision Level Shown on Page Date Shown on Page 52-30-07 2 - October 15, 1992 52-30-08 1 1 August 31, 1990 52-30-09 1 - October 15, 1992 52-30-10 1 - October 15, 1992 52-30-11 1 - October15, 1992 52-31-01 1 1 August 31, 1990 52-31-02 1 2 August 31, 1990 52-40-01 1 4 October 15, 1992 52-40-02 1 4 October 15, 1992 53-10-01 1-2 4 October 15, 1992 53-10-02 1 4 October 15, 1992 53-10-02 2 3 (deleted) 53-10-03 1 4 October 15, 1992 53-10-04 1 3 October 15, 1992 53-10-05 1-2 4 October 15, 1992 53-10-06 1 4 October 15, 1992 53-10-07 1 3 October 15, 1992 53-10-08 1 5 October 15, 1992 53-10-08 2-3 2 October 15, 1992 53-10-09 1 2 August 31, 1990 53-10-10 1 3 October 15, 1992 53-10-11 1 3 October 15, 1992 53-10-12 1 2 October 15, 1992 53-10-13 1 2 October 15, 1992 53-10-14 1 4 October 15, 1992 53-10-18 1 3 October 15, 1992 53-10-18 2 1 October 15, 1992 53-10-18 3 - October 15, 1992 53-10-19 1 2 October 15, 1992 53-10-20 1 2 October 15, 1992 53-10-21 1 2 October 15, 1992 53-10-22 1 1 October 15, 1992 53-10-23 1 1 October 15, 1992 53-10-24 1- (Not Dated) 53-10-24 2 - October 15, 1992 53-10-25 1 - October 15, 1992 53-30-01 1 3 October 15, 1992 53-30-02 1 3 October 15, 1992 53-30-03 1 4 October 15, 1992 53-30-05 1-2 3 October 15, 1992 53-30-06 1-6 3 October 15, 1992 53-30-06 7-9 - October 15, 1992 53-30-07 1 3 October 15, 1992 53-30-07 2 2 October 15, 1992 53-30-07 3 1 October 15, 1992 53-30-08 1 3 October 15, 1992 53-30-09 1 1 October 15, 1992 53-30-09 2-8 - October 15, 1992 53-40-01 1 2 October 15, 1992

Item Number

Page Number Revision Level Shown on Page Date Shown on Page 53-40-02 1 4 October 15, 1992 53-40-02 2 1 October 15, 1992 53-40-03 1 2 August 31, 1990 53-40-04 1 4 October 15, 1992 53-50-01 1 1 August 31, 1990 53-50-01 2 2 August 31, 1990 55-30-01 1 4 October 15, 1992 55-50-01 1 4 October 15, 1992 55-50-02 1 4 October 15, 1992 55-50-04 1 1 August 31, 1990 55-50-05 1 - October 15, 1992 57-10-01 1 3 October 15, 1992 57-10-01 2 2 March 20, 1986 57-10-02 1 2 October 15, 1992 57-10-02 2 2 March 20, 1986 57-10-03 1 2 October 15, 1992 57-10-03 2 2 March 20, 1986 57-10-04 1 4 August 31, 1990 57-10-05 1 4 October 15, 1992 57-10-06 1 5 October 15, 1992 57-10-07 1 5 October 15, 1992 57-10-07 2 3 October 15, 1992 57-10-09 1 1 October 15, 1992 57-10-10 1 - October 15, 1992 57-30-01 1-2 5 October 15, 1992 57-30-02 1 2 October 15, 1992 57-40-01 4 3 October 15, 1992 57-40-01 2 2 August 31, 1990 57-40-01 3 3 August 31, 1990 57-40-01 4 2 August 31, 1990 57-40-02 1 4 October 15, 1992 57-40-03 1 2 August 31, 1990 57-40-04 1 2 October 15, 1992 57-40-04 2 2 March 20, 1986 57-40-05 1 4 October 15, 1992 57-40-06 1 3 October 15, 1992 57-40-07 1 3 October 15, 1992 57-40-08 1 3 October 15, 1992 57-40-09 1 2 August 31, 1990 57-40-10 1 1 August 31, 1990 57-40-11 1 1 August 31, 1990 57-50-01 1 2 August 31, 1990 57-50-02 1 3 October 15, 1992 57-50-03 1 3 October 15, 1992 57-50-04 1 3 October 15, 1992 57-50-05 1 3 October 15, 1992 57-50-06 1 3 October 15, 1992 71-20-01 1 3 August 31, 1990 72-00-01 1 1 May 1, 1984

Item Number

Page Number Revision Level Shown on Page Date Shown on Page ILLUSTRATIONS

27-20-01 1 - March 1, 1982 27-30-01 1 - March 1, 1982 27-40-01 1 - March 1, 1982 27-50-01 1 1 August 31, 1990 27-50-01 2 - August 31, 1990 27-50-10 1 - September 25, 1987 27-61-01 1 - March 1, 1982 27-61-03 1 - March 1, 1982 27-63-01 1 - March 1, 1982 27-63-02 1 - March 1, 1982 29-10-01 1 - March 1, 1982 32-10-01 1 - March 1, 1982 32-10-02 1 - March 1, 1982 32-10-03 1 - March 1, 1982 32-42-01 1 - March 1, 1982 32-50-01 1 - March 1, 1982 52-10-01 1 2 August 31, 1990 52-10-02 1 1 October 15, 1992 52-10-05 1 - October 15, 1992 52-20-01 1 - March 1, 1982 52-30-01 1 1 August 31, 1990 52-30-01 2 - August 31, 1990 52-30-05 1 2 October 15, 1992 52-30-06 1 2 October 15, 1992 52-30-09 1 - October 15, 1992 52-31-01 1 1 November 1, 1982 52-40-01 1 - March 1, 1982 53-10-01 1 1 August 31, 1990 53-10-01 2 - August 31, 1990 53-10-03 1 - August 31, 1990 53-10-04 1 1 October 15, 1992 53-10-05 1 2 August 31, 1990 53-10-06 1 - August 31, 1990 53-10-07 1 1 October 15, 1992 53-10-08 1 4 August 31, 1990 53-10-09 1 - March 1, 1982 53-10-10 1 1 August 31, 1990 53-10-11 1 - March 1, 1982 53-10-12 1 - March 1, 1982 53-10-14 1 2 October 15, 1992 53-10-18 1 3 October 15, 1992 53-10-18 2 - October 15, 1992 53-10-19 1 - September 25, 1987 53-10-20 1 - September 25, 1987 53-10-21 1 - November 1, 1988 53-10-22 1 - August 31, 1990 53-10-23 1 1 October 15, 1992 53-10-24 1 - October 15, 1992

Item Number

Page Number Revision Level Shown on Page Date Shown on Page 53-10-25 1 - October 15, 1992 53-30-01 1 1 August 31, 1990 53-30-02 1 - August 31, 1990 53-30-03 1 2 August 31, 1990 53-30-05 1 2 October 15, 1992 53-30-06 1-5 - October 15, 1992 53-30-07 1-6 - October 15, 1992 53-30-08 1-2 - October 15, 1992 53-30-09 1-9 - October 15, 1992 53-40-01 1 1 August 31, 1990 53-40-02 1 2 October 15, 1992 53-40-03 1 - December 15, 1983 53-40-04 1 1 August 31, 1990 53-50-01 1 - March 1, 1982 55-30-01 1 1 October 15, 1992 55-50-01 1 2 October 15, 1992 57-10-01 1 2 October 15, 1992 57-10-02 1 - March 1, 1982 57-10-04 1 - March 1, 1982 57-10-05 1 1 August 31, 1990 57-10-06 1 - March 1, 1982 57-10-07 1 2 October 15, 1992 57-10-09 1 - August 31, 1990 57-10-10 1 - October 15, 1992 57-30-01 1 1 November 1, 1988 57-30-021 1 August 31, 1990 57-40-01 1 2 August 31, 1990 57-40-01 2 - August 31, 1990 57-40-02 1 1 August 31, 1990 57-40-03 1 - March 1, 1982 57-40-05 1 1 August 31, 1990 57-40-07 1 1 August 31, 1990 57-40-09 1 - September 25, 1987 57-40-10 1 - September 25, 1987 57-40-11 1 - September 25, 1987 57-50-02 1 - March 1, 1982 57-50-04 1 - March 1, 1982 57-50-06 1 - March 1, 1982 71-20-01 1 - March 1, 1982

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 Fokker Aircraft USA, Inc., 1199 North Fairfax Street, Alexandria, Virginia 22314. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.

(g) This amendment becomes effective on August 18, 1993.