# AD 87-25-12: Rudder Trim Tab

- Type: Airworthiness directive
- Status: Current
- Products: Fokker Services F27 Mark 050, F27 Mark 100, F27 Mark 200, F27 Mark 300, F27 Mark 400, F27 Mark 500, F27 Mark 600 and F27 Mark 700
- Effective: January 25, 1988
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-5797
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D199E4825832119F862569F100642B36.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/87-25-12

## The airworthiness directive

87-25-12 FOKKER B.V.: Amendment 39-5797. Applies to Fokker Model F27 series airplanes, serial numbers 10102 through 10684, 10686, 10687, 10689 through 10692, certificated in any category. Compliance required within one year after the effective date of this AD, unless previously accomplished.

To prevent flutter of rudder trim tab, accomplish the following:

A. Modify the rudder trim tab in accordance with Part 2, Accomplishment Instructions, of Fokker Service Bulletin No. F27/55-62, dated August 18, 1986, or Revision 1, dated April 15, 1987.

B. 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.

C. 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 modifications required by this AD.

All persons affectedby this directive who have not already received the appropriate service document from the manufacturer may obtain copies upon request to Fokker Aircraft USA, Inc., 1199 N. Fairfax Street, Alexandria, Virginia 22314. This document may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington.

This amendment becomes effective January 25, 1988.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-817](https://openairdocs.org/tcds/A-817): Fokker Services B.V.; names 8 of 8 models: F27 Mark 500, F27 Mark 100, F27 Mark 700, F27 Mark 200, F27 Mark 400, F27 Mark 600, F27 Mark 050, F27 Mark 300

## 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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