83-23-06: Engine Subframe Struts
FAA order 83-23-06 is an airworthiness directive in force since December 15, 1983. The FAA's subject line: Engine Subframe Struts. System: engine.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- BAE Systems (Operations) Limited
- Models
- HS 748 Series 2A, HS 748 Series 2B
Dates and paperwork
- In force since
- December 15, 1983
- 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 (1,168 characters)
83-23-06 BRITISH AEROSPACE AIRCRAFT GROUP: Amendment 39-4767. Applies to Model HS 748 series 2A and 2B airplanes certificated in all categories. To prevent structural failure of the engine subframe, accomplish the following, unless already accomplished:
A. Prior to 7 years from date of manufacture, or within the next 12 months after the effective date of this AD, whichever occurs later, inspect engine subframe struts and perform the appropriate actions in accordance with paragraph 2, Accomplishment Instructions, of British Aerospace Aircraft Group HS 748 Service Bulletin 54/25, Revision 4, dated May 1979.
B. Repeat the inspections of the subframe struts at seven year intervals from the last inspection.
C. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.
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 inspections and/or modifications required by this AD.
This amendment becomes effective December 15, 1983.
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/83-23-06.json · aircraft systems.