78-05-02: Propeller Pitch Control Cam Follower Pin
FAA order 78-05-02 is an airworthiness directive in force since April 5, 1979. The FAA's subject line: Propeller Pitch Control Cam Follower Pin. It names the Honeywell TPE331-1, Honeywell TPE331-2, Honeywell TPE331-3U, Honeywell TPE331-5, Honeywell TPE331-6, Honeywell TPE331-series engines: about 38 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: engine.
What it applies to as the FAA lists it
- Kind of product
- Engine
- Makes
- Honeywell International Inc.
- Models
- TPE331-1, TPE331-1U, TPE331-1UA, TPE331-2, TPE331-2U, TPE331-2UA, TPE331-3, TPE331-3U, TPE331-3UW, TPE331-3W, TPE331-5, TPE331-5U, TPE331-6, TPE331-6U
- Engine series
- Honeywell TPE331-1 1 aircraft
Honeywell TPE331-2 3 aircraft
Honeywell TPE331-3U 1 aircraft
Honeywell TPE331-5 2 aircraft
Honeywell TPE331-6 3 aircraft
Honeywell TPE331-series 28 aircraft
Dates and paperwork
- In force since
- April 5, 1979
- 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 (1,248 characters)
78-05-02 AIRESEARCH MANUFACTURING COMPANY OF ARIZONA: Amendment 39-3145 as amended by amendment 39-3445. Applies to AiResearch Model TPE331-1, -2, -3, -5, and -6 Series engines.
Compliance required as indicated.
To prevent failure of the propeller pitch control cam follower pin accomplish the following:
(1) Within the next 500 hours time in service after April 1, 1978 or prior to September 30, 1979, or at next engine overhaul, whichever comes first, unless already accomplished, remove propeller pitch control sleeve assembly Part Number 869647-1, -2, or -3 from the engine and replace it with a serviceable propeller pitch control sleeve assembly Part Number 869647-4 or other later FAA approved sleeve assembly in accordance with AiResearch Service Bulletin TPE331-72-0115, Revision 1, dated September 26, 1977, or later FAA approved revisions, or by equivalent method approved by the Chief, Aircraft Engineering Division, FAA Western Region.
(2) Special flight permits may be issued per FAR 21.197 and 21.199 to authorize operation of aircraft to a base where this modification required by this AD may be performed.
Amendment 39-3145 became effective April 1, 1978.
This amendment 39-3445 becomes effective April 5, 1979.
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 30, 2026. Connections as data: /graph/directive/78-05-02.json · aircraft systems.