AD 89-11-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker Services | F.28 Mark 0070 | Airworthiness Directives; FOKKER Model F-28 Series Airplanes |
| aircraft | Fokker Services | F.28 Mark 0100 | Airworthiness Directives; FOKKER Model F-28 Series Airplanes |
| aircraft | Fokker Services | F.28 Mark 1000 | Airworthiness Directives; FOKKER Model F-28 Series Airplanes |
| aircraft | Fokker Services | F.28 Mark 2000 | Airworthiness Directives; FOKKER Model F-28 Series Airplanes |
| aircraft | Fokker Services | F.28 Mark 3000 | Airworthiness Directives; FOKKER Model F-28 Series Airplanes |
| aircraft | Fokker Services | F.28 Mark 4000 | Airworthiness Directives; FOKKER Model F-28 Series Airplanes |
Unsafe Condition
Cracks in the frame 1600 center bracket could cause decompression of the aircraft during flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the frame 1600 center bracket for cracks and repair as necessary per Fokker Service Bulletin F28/53-A92, Revision 1. Repeat inspections at intervals not exceeding 4,500 or 3,000 landings depending on configuration.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days after the effective date of this AD or upon accumulation of 75,000 or 50,000 landings, whichever occurs later, depending on configuration.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fokker Model F-28 series airplanes, serial numbers 11003 through 11241, 11991 and 11992, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Frame 1600 Center Bracket
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_89-11-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 89-11-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; FOKKER Model F-28 Series Airplanes Subject: Frame 1600 Center Bracket Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/22/1989 Make: Fokker Services Model: F.28 Mark 0070 | F.28 Mark 0100 | F.28 Mark 1000 | F.28 Mark 2000 | F.28 Mark 3000 | F.28 Mark 4000 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 89-11-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-6220 AD NUMBER: 89-11-04 SUBJECT HEADING: Airworthiness Directives; FOKKER Model F-28 Series Airplanes ACTION: SUMMARY: DATES: Effective June 22, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 89-11-04 FOKKER: Amendment 39-6220. Applicability: Model F-28 series airplanes, Serial Numbers 11003 through 11241, 11991 and 11992, certificated in any category. Compliance: Required as indicated, unless previously accomplished. To prevent decompression of the aircraft during flight, accomplish the following: A. For airplanes in pre-Service Bulletin F28/21-16 configuration, within 30 days after the effective date of this AD, or upon the accumulation of 75,000 landings, whichever occurs later, inspect the frame 1600 center bracket for cracks, and repair, if necessary, in accordance with Fokker Service Bulletin F28/53-A92, Revision 1, dated July 15, 1988. Repeat this inspection at intervals not to exceed 4,500 landings. B. For airplanes in post-Service Bulletin F28/21-16 configuration, within 30 days after the effective date of this AD, or upon the accumulation of 50,000 landings, whichever occurs later, inspect the frame 1600 center bracket for cracks, and repair, if necessary, in accordance with Fokker Service Bulletin F28/53-A92, Revision 1, dated July 15, 1988. Repeat this inspection at intervals not to exceed 3,000 landings. C. An alternate means 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, Northwest Mountain Region. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who may add any comments and then send it to the Manager, Standardization Branch, ANM-113. D. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of 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 Fokker Aircraft USA, Inc., 1199 N. Fairfax Street, Alexandria, Virginia 22314. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or at the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington. This amendment (39-6220, AD 89-11-04) becomes effective on June 22, 1989. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_89-11-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 89-11-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; FOKKER Model F-28 Series Airplanes Subject: Frame 1600 Center Bracket Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/22/1989 Make: Fokker Services Model: F.28 Mark 0070 | F.28 Mark 0100 | F.28 Mark 1000 | F.28 Mark 2000 | F.28 Mark 3000 | F.28 Mark 4000 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 89-11-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-6220 AD NUMBER: 89-11-04 SUBJECT HEADING: Airworthiness Directives; FOKKER Model F-28 Series Airplanes ACTION: SUMMARY: DATES: Effective June 22, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 89-11-04 FOKKER: Amendment 39-6220. Applicability: Model F-28 series airplanes, Serial Numbers 11003 through 11241, 11991 and 11992, certificated in any category. Compliance: Required as indicated, unless previously accomplished. To prevent decompression of the aircraft during flight, accomplish the following: A. For airplanes in pre-Service Bulletin F28/21-16 configuration, within 30 days after the effective date of this AD, or upon the accumulation of 75,000 landings, whichever occurs later, inspect the frame 1600 center bracket for cracks, and repair, if necessary, in accordance with Fokker Service Bulletin F28/53-A92, Revision 1, dated July 15, 1988. Repeat this inspection at intervals not to exceed 4,500 landings. B. For airplanes in post-Service Bulletin F28/21-16 configuration, within 30 days after the effective date of this AD, or upon the accumulation of 50,000 landings, whichever occurs later, inspect the frame 1600 center bracket for cracks, and repair, if necessary, in accordance with Fokker Service Bulletin F28/53-A92, Revision 1, dated July 15, 1988. Repeat this inspection at intervals not to exceed 3,000 landings. C. An alternate means 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, Northwest Mountain Region. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who may add any comments and then send it to the Manager, Standardization Branch, ANM-113. D. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of 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 Fokker Aircraft USA, Inc., 1199 N. Fairfax Street, Alexandria, Virginia 22314. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or at the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington. This amendment (39-6220, AD 89-11-04) becomes effective on June 22, 1989. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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