FAA orders · airworthiness directive · current

2015-02-07: Propeller governor shaft set screw

FAA order 2015-02-07 is an airworthiness directive in force since March 11, 2015. The FAA's subject line: Propeller governor shaft set screw. It names the Lycoming AEIO-320-D1B, Lycoming AEIO-360-A1E, Lycoming AEIO-360-A1E6, Lycoming AEIO-360-B1H, Lycoming AEIO-360-H1B, Lycoming AEIO-540-D4A5, Lycoming AEIO-540-D4B5, Lycoming AEIO-540-L1B5, Lycoming AEIO-540-L1B5D, Lycoming AEIO-540 series, Lycoming AEIO-580-B1A, Lycoming IO-540 series engines: about 5,199 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: Lycoming Engines
Models: AEIO-320-D1B, AEIO-360-A1E, AEIO-360-A1E6, AEIO-360-B1H, AEIO-360-H1B, AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4D5, AEIO-540-L1B5, AEIO-540-L1B5D, AEIO-540-L1D5, AEIO-580-B1A, IO-540-K1K5
Engine series: Lycoming AEIO-320-D1B 2 aircraft
Lycoming AEIO-360-A1E 11 aircraft
Lycoming AEIO-360-A1E6 2 aircraft
Lycoming AEIO-360-B1H 2 aircraft
Lycoming AEIO-360-H1B 123 aircraft
Lycoming AEIO-540-D4A5 55 aircraft
Lycoming AEIO-540-D4B5 3 aircraft
Lycoming AEIO-540-L1B5 56 aircraft
Lycoming AEIO-540-L1B5D 41 aircraft
Lycoming AEIO-540 series 434 aircraft
Lycoming AEIO-580-B1A 252 aircraft
Lycoming IO-540 series 4,218 aircraft

Dates and paperwork

In force since: March 11, 2015
Published: February 4, 2015 (signed January 13, 2015)
Docket: FAA-2014-0540
Status: Current
The FAA's document: Read the order on the FAA's site

The FAA's summary their words, unchanged

We are adopting a new airworthiness directive (AD) for certain serial number (S/N) Lycoming Engines reciprocating engines. This AD was prompted by propeller governor shaft set screws coming loose due to improper installation. We are issuing this AD to prevent the propeller governor shaft set screw from coming loose, causing damage to the engine and damage to the airplane.

The order itself the regulatory text, as published

Show the full text (3,734 characters)

Adoption of the Amendment 

	Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: 

PART 39--AIRWORTHINESS DIRECTIVES 

0 1. The authority citation for part 39 continues to read as follows: 

	Authority:  49 U.S.C. 106(g), 40113, 44701. 

Sec.  39.13  [Amended] 

0 2. The FAA amends Sec.  39.13 by adding the following new airworthiness directive (AD): 

2015-02-07 Lycoming Engines (Type Certificate previously held by Textron Lycoming Division, AVCO Corporation): Amendment 39-18074; Docket No. FAA-2014-0540; Directorate Identifier 2014-NE-10-AD. 

(a) Effective Date 

	This AD is effective March 11, 2015. 

(b) Affected ADs 

	None. 

(c) Applicability 

	This AD applies to all Lycoming Engines wide deck aerobatic reciprocating engines that have either an ``A'' or an ``E'' at the end of the serial number (e.g., L-12345-51A, or L-12345-51E) and are equipped with a front-mounted propeller governor. Affected reciprocating engine models include, but are not limited to Lycoming Engines AEIO-320-D1B; AEIO-360-A1E, -A1E6, -B1H, -H1B; AEIO-540- D4A5, -D4B5, -D4D5, -L1B5, -L1B5D, -L1D5; AEIO-580-B1A; and IO-540- K1K5 (with aerobatic kit installed). 

(d) Unsafe Condition 

	This AD was prompted by propeller governor shaft set screws coming loose due to improper installation. We are issuing this AD to prevent the propeller governor shaft set screw from coming loose, causing damage to the engine and damage to the airplane. 

(e) Compliance 

	Comply with this AD within the compliance times specified, unless already done. 
	After the effective date of this AD, at each installation of the propeller governor shaft set screw, secure the set screw in place in accordance with the instructions of Lycoming Engines Service Instruction No. 1343B, dated June 15, 2007. Use a thread-locking, anaerobic, single-component sealing compound that meets military specification Mil-S-46163A, Type III, Grade R, and peen the crankcase hole threads. 

(f) Alternative Methods of Compliance (AMOCs) 

	The Manager, New York Aircraft Certification Office, FAA, may approve AMOCs to this AD. Use the procedures found in 14 CFR 39.19 to make your request. 

(g) Related Information 

	(1) For more information about this AD, contact Norm Perenson, Aerospace Engineer, New York Aircraft Certification Office, FAA, Engine & Propeller Directorate, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: 516-228-7337; fax: 516-794-5531; email: norman.perenson@faa.gov. 

(h) Material Incorporated by Reference 

	(1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. 
	(2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. 
	(i) Lycoming Engines Service Instruction No. 1343B, dated June 15, 2007. 
	(ii) Reserved. 
	(3) For Lycoming Engines service information identified in this AD, contact Lycoming Engines, 652 Oliver Street, Williamsport, PA 17701; phone: 800-258-3279; fax: 570-327-7101; Internet: http://www.lycoming.com/Lycoming/SUPPORT/TechnicalPublications/ServiceInstructions.aspx. 
	(4) You may view this service information at FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781-238-7125. 
	(5) You may view this service information at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

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/2015-02-07.json · aircraft systems.