66-02-01: Air Conditioners
FAA order 66-02-01 is an airworthiness directive in force since February 10, 1966. The FAA's subject line: Air Conditioners. It names Beechcraft 56, Beechcraft 58 Baron, Beechcraft 65, Douglas DC-3, Lockheed 18: about 1,701 aircraft on the U.S. register today across them, 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
- Appliance
- Makes
- Beechcraft; Textron Aviation Inc.; The Boeing Company; Textron Aviation Inc.; Lockheed Aircraft Corporation; Vickers-Armstrongs (Aircraft Limited)
- Models
- 56TC, 58, 58A, 65, 65-80, 65-88, 65-90, 65-A80, 65-A80-8800, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, 65-B80, Air Conditioners, DC3-G102, DC3-G102A, DC3-G103A, DC3-G202A, DC3A-S1C3G, DC3A-S1CG, DC3A-S4C4G, DC3A-SC3G, DC3A-SCG, DC3C-R-1830-90C, DC3C-S1C3G, DC3C-S4C4G, DC3C-SC3G, DC3D-R-1830-90C, 18A, 18D, 18S (Army C-45C), 50, 58P, 58PA, 58TC, 58TCA, 18, Viscount 744, Viscount 745D, Viscount 810
- On this site
- Beechcraft 56 37 registered
Beechcraft 58 Baron 1,295 registered
Beechcraft 65 201 registered
Douglas DC-3 155 registered
Lockheed 18 13 registered
Dates and paperwork
- In force since
- February 10, 1966
- 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 (713 characters)
66-02-01 BEECHCRAFT: Amendment 39-179 Part 39 Federal Register January 8, 1966. Applies to all Airplanes Equipped with Model BAK-109 Air Conditioners. \n\n\tCompliance required within the next 100 hours' time in service after the effective date of this AD unless already accomplished. \n\n\tTo prevent further failures of the compressor motor fan, replace the fan in accordance with Beech Service Bulletin No. 65-4 dated March 1965. \n\n\tNOTE: The Beechcraft Model BAK-109 Air Conditioner is known to be installed in, but not limited to, Beech Models 18, 50, 65 Series; Douglas Model DC3; Lockheed Model 18; Viscount Models 744, 745D and 810 Series airplanes. \n\n\tThis directive effective February 10, 1966.
Related safety bulletins advice on the same designs, not orders
2018-11-21SW-18-31 · NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM
2015-09-15CE-15-22 · Wing Leading Edge Hinge-Pin Corrosion
2014-11-24NM-15-03 · Flight Controls
2013-08-30CE-10-34R2 · Alternative Methods of Compliance (AMOC) to Airworthiness Directive (AD) 89-25-10 and 89-25-08
2013-08-20CE-10-34R1 · Alternative Methods of Compliance (AMOC) to Airworthiness Directive (AD) 89-25-10 and 89-25-08
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 October 5, 2026. Connections as data: /graph/directive/66-02-01.json · aircraft systems.