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84-23-07: Oil Cooler Air Intake Scoop

FAA order 84-23-07 is an airworthiness directive in force since December 15, 1984. The FAA's subject line: Oil Cooler Air Intake Scoop. It names Short Bros SD3: about 41 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: other and general.

What it applies to as the FAA lists it

Kind of product
Aircraft
Makes
Short Brothers PLC
Models
SD3-60
On this site
Short Bros SD3 41 registered

Dates and paperwork

In force since
December 15, 1984
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 (1,026 characters)
84-23-07 SHORT BROTHERS LTD.: Amendment 39-4950. Applies to Model SD3-60 airplanes as listed in Short Brothers Service Bulletin SD360-71-05, dated March 1984, certificated in all categories. Compliance is required as indicated unless previously accomplished. To prevent icing of the oil cooler air intake scoop, accomplish the following: A. Within 60 days after the effective date of this airworthiness directive (AD), install the "D" type oil cooler air intake scoop on both intake cowls in accordance with Short Brothers Ltd. Service Bulletin SD360-71-05, dated March 1984. B. 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. 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 inspections and/or modifications required by this AD. This amendment becomes effective December 15, 1984.

Related safety bulletins advice on the same designs, not orders

2008-12-11NM-09-03 · Engine Fuel and Control - Implementing Fuel Tank System Airworthiness Limitations

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/84-23-07.json · aircraft systems.