FAA orders · airworthiness directive · current

2005-22-12: Thrust reverser actuation system (TRAS) locks

FAA order 2005-22-12 is an airworthiness directive in force since December 2, 2005. The FAA's subject line: Thrust reverser actuation system (TRAS) locks. It names the General Electric CF6-80 series, General Electric CF6-80E1A4 engines: about 248 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: General Electric Company
Models: CF6-80E1A1, CF6-80E1A2, CF6-80E1A3, CF6-80E1A4, CF6-80E1A4/B
Engine series: General Electric CF6-80 series 238 aircraft
General Electric CF6-80E1A4 10 aircraft

Dates and paperwork

In force since: December 2, 2005
Published: November 2, 2005 (signed October 27, 2005)
Docket: FAA-2005-22701
Status: Current
The FAA's document: Read the order on the FAA's site

The FAA's summary their words, unchanged

The FAA is adopting a new airworthiness directive (AD) for General Electric Company (GE) CF6-80E1 series turbofan engines installed on Airbus Industrie A330 series airplanes. This AD requires a check of the holding torque of the thrust reverser actuation system (TRAS) locks, and if necessary a visual inspection of the TRAS lock flexible drive shafts, within 10 flight cycles after all aborted takeoffs in which the thrust reverser was deployed. This AD results from reports of operators finding several damaged TRAS lock flexible drive shafts during inspections and checks of the drive shafts. We are issuing this AD to prevent inadvertent in-flight deployment of the thrust reverser, which can result in loss of control of the airplane.

The order itself the regulatory text, as published

Show the full text (2,066 characters)

2005-22-12 General Electric Company: Amendment 39-14356. Docket No. FAA-2005-22701; Directorate Identifier 2005-NE-37-AD. 

Effective Date 

	(a) This airworthiness directive (AD) becomes effective December 2, 2005. 

Affected ADs 

	(b) None. 

Applicability 

	(c) This AD applies to General Electric Company (GE) CF6-80E1 series turbofan engines. These engines are installed on, but not limited to, Airbus Industrie A330 series airplanes. 

Unsafe Condition 

	(d) This AD results from reports of operators finding several damaged thrust reverser actuation system (TRAS) lock flexible drive shafts during inspections and checks of the drive shafts. We are issuing this AD to prevent inadvertent in-flight deployment of the thrust reverser, which can result in loss of control of the airplane. 

Compliance 

	(e) You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. 

	(f)Within 10 flight cycles after all aborted takeoffs in which the thrust reverser was deployed, do the following: 

	(1) Perform a check of the holding torque of the TRAS locks. 

	(2) Based on the results of the holding torque check, perform a visual inspection of the TRAS lock flexible drive shafts if necessary. 

	(3) Replace any damaged flexible drive shafts or locks. 

	(g) Information on performing a check of the holding torque of the TRAS locks, and a visual inspection of the TRAS lock flexible drive shafts, can be found in the Airbus A330 Aircraft Maintenance Manual, Task 72-00-00-200-850. 

Alternative Methods of Compliance 

	(h) The Manager, Engine Certification Office, has the authority to approve alternative methods of compliance for this AD if requested using the procedures found in 14 CFR 39.19. 

Related Information 

	(i) Middle River Aircraft Systems Alert Service Bulletin No. CF6-80E1 S/B 78A5097, dated June 14, 2005, and General Electric CF6- 80E1 Series Engine Manual Temporary Revision No. 05-0049, dated August 24, 2005, pertain to the subject of this AD.

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/2005-22-12.json · aircraft systems.