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FAA
Federal Aviation Administration Department of Transportation
Aviation Safety
AIRWORTHINESS DIRECTIVE
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AD 93-13-04 ACTIVE

Structural Inspections
Key Information
AD Number 93-13-04 Status Active
Effective Date August 18, 1993 Issue Date Not specified
Docket Number 91-NM-121-AD Amendment 39-8617
Product Type ["Aircraft"] Product Subtype ["Large Airplane"]
CFR Part --- - Part 39 CFR Section N/A
Citation This information is not available.
Applicability
Manufacturer(s) Not specified
Model(s) F.28 Mark 1000 F.28 Mark 2000 F.28 Mark 3000 F.28 Mark 4000
Regulatory Text

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.

AD 93-13-04 — Structural Inspections
Printed from Aircraft-logs.com — 03/25/2026