87-17-04: Flap System
FAA order 87-17-04 is an airworthiness directive in force since September 14, 1987. The FAA's subject line: Flap System. It names British Aerospace BAE 146: about 15 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: flight controls.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- BAE Systems (Operations) Limited
- Models
- BAe 146-100A, BAe 146-200A, BAe 146-300A
- On this site
- British Aerospace BAE 146 15 registered
Dates and paperwork
- In force since
- September 14, 1987
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (2,103 characters)
87-17-04 BRITISH AEROSPACE: Amendment 39-5705. Applies to Model BAe-146 series airplanes listed in British Aerospace BAe-146 Service Bulletin 27-54-70193A, Revision 1, dated June 3, 1986, certificated in any category. Compliance required within 60 days after the effective date of this AD, unless previously accomplished:
To prevent the loss of primary or secondary drive of the flap system torque limiter output, accomplish the following:
A. Inspect torque limiter drive sprocket splines for excessive backlash and replace, if necessary, in accordance with BAe Alert Service Bulletin 27-A54, Revision 1, dated April 22, 1986.
B. Repeat the following inspections described in BAe Service Bulletin 27-A54, Revision 1, dated April 22, 1986;
1. Paragraph 2A: At intervals not exceeding 600 landings.
2. Paragraph 2B: At intervals not exceeding 300 landings.
C. Modification of the flap drive system in accordance with BAe Modification Service Bulletin 27-54-70193A, Revision 1, dated June 3, 1986, constitutes terminating action for the repetitive inspection requirements of paragraph B., above.
D. 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.
E. 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 inspections and/or modifications required by 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 British Aerospace, Service Bulletin Librarian, P.O. Box 17414, Dulles International Airport, Washington, D.C. 20041. 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 September 14, 1987.
Related safety bulletins advice on the same designs, not orders
2019-02-19NE-19-03 · Escape Slide Maintenance Tasks and Intervals - JASC 2565
2008-09-03NM-08-43 · Cabin Equipment/Furnishings - Seats
2006-07-27NM-06-57 · Reports of damage to airplanes and to property on the ground caused by blue or clear ice falling from airplanes.
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/87-17-04.json · aircraft systems.