# AD 91-11-07: Lap Joint Rivets

- Type: Airworthiness directive
- Status: Current
- Products: F.28 Mark 0100, F.28 Mark 1000, F.28 Mark 2000, F.28 Mark 3000 and F.28 Mark 4000
- Effective: June 24, 1991
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-7003
- Docket: 90-NM-291-AD
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D78E66F81F73CC8386256A250062AECF.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/91-11-07

## The airworthiness directive

91-11-07 FOKKER: Amendment 39-7003. Docket No. 90-NM-291-AD. Applicability: Model F-28 series airplanes, Serial Numbers 11003 through 11013, 11991, and 11992; certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To prevent reduced structural integrity of the fuselage, accomplish the following:

A. Within one year after the effective date of this AD, remove the cold-bonded lap joint rivets, and perform detailed visual and high frequency eddy current inspections to detect cracks and damage to the areas adjacent to the rivet holds, in accordance with the Accomplishment Instructions of Fokker Service Bulletin F28/53-109, dated October 24, 1990.

1. If no cracks or damage are found, prior to further flight, install 3/16-inch protruding-head rivets in accordance with the Accomplishment Instructions of the service bulletin.

2. If cracks or damage are found, prior to further flight, repair and install 3/16-inch protruding-head rivets in accordance with the Accomplishment Instructions of the service bulletin.

B. 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, Standardization Branch, ANM- 113, FAA, Transport Airplane Directorate.

NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113.

C. 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.

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 North Fairfax Street, Alexandria, Virginia 22314. These documents may be examined at the FAA, Northwest MountainRegion, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington.

This amendment (39-7003, AD 91-11-07) becomes effective on June 24, 1991.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A20EU](https://openairdocs.org/tcds/A20EU): Fokker Services B.V.; names 5 of 6 models: F28 Mark 1000, F28 Mark 4000, F28 Mark 2000, F28 Mark 3000, F28 Mark 0100

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

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