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2009-24-06: Full authority digital electronic controls

FAA order 2009-24-06 is an airworthiness directive in force since December 28, 2009. The FAA's subject line: Full authority digital electronic controls. It names the General Electric CF34-8E5, General Electric CF34-8E5A2, General Electric CF34 series engines: about 1,374 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: CF34-8E2, CF34-8E2A1, CF34-8E5, CF34-8E5A1, CF34-8E5A2, CF34-8E6, CF34-8E6A1
Engine series: General Electric CF34-8E5 698 aircraft
General Electric CF34-8E5A2 3 aircraft
General Electric CF34 series 673 aircraft

Dates and paperwork

In force since: December 28, 2009
Published: November 23, 2009 (signed November 16, 2009)
Docket: FAA-2008-0821
Replaces: 2008-16-01
Status: Current
The FAA's document: Read the order on the FAA's site

The FAA's summary their words, unchanged

The FAA is superseding an existing airworthiness directive (AD) for GE CF34-8E series turbofan engines with certain part number (P/N) full authority digital electronic controls (FADECs) installed. That AD currently requires removing certain P/N FADECs. This superseding AD requires removal of 12 more P/Ns of FADECs. This AD results from 20 additional reports received of loss of thrust control events since AD 2008-16-01 was issued. We are issuing this AD to prevent loss of thrust control of the airplane.

The order itself the regulatory text, as published

Show the full text (2,860 characters)

2009-24-06 General Electric Company: Amendment 39-16094. Docket No. FAA-2008-0821; Directorate Identifier 2008-NE-20-AD. 

Effective Date 

	(a) This airworthiness directive (AD) becomes effective December 28, 2009. 

Affected ADs 

	(b) This AD supersedes AD 2008-16-01, Amendment 39-15619. 

Applicability 

	(c) This AD applies to General Electric Company (GE) CF34-8E series turbofan engines with full authority digital electronic controls (FADECs), part numbers (P/Ns) 4120T00P31, 4120T00P32, 4120T00P41, 4120T00P42, 4120T00P43, 4120T00P44, 4120T00P47, 4120T00P48, 111E9320G32, 111E9320G33, 111E9320G42, 111E9320G43, 111E9320G44, 111E9320G45, 111E9320G48, or 111E9320G49 installed. These engines are installed on, but not limited to, Empresa Brasileira de Aeronautica S.A. (EMBRAER) ERJ 170 series airplanes. 

Unsafe Condition 

	(d) This AD results from 20 additional reports received of loss of thrust control events since AD 2008-16-01 was issued. We are issuing this AD toprevent loss of thrust 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. 

Removal of CF34-8E FADECs 

	(f) Within 660 flight hours time-in-service (TIS) after the effective date of this AD, remove FADEC P/Ns 4120T00P31, 4120T00P32, 4120T00P41, 4120T00P42, 4120T00P43, 4120T00P44, 4120T00P47, 4120T00P48, 111E9320G32, 111E9320G33, 111E9320G42, 111E9320G43, 111E9320G44, 111E9320G45, 111E9320G48, and 111E9320G49. 

Installation Prohibition 

	(g) After 660 flight hours TIS after the effective date of this AD, do not install any FADEC P/N 4120T00P31, 4120T00P32, 4120T00P41, 4120T00P42, 4120T00P43, 4120T00P44, 4120T00P47, 4120T00P48, 111E9320G32, 111E9320G33, 111E9320G42, 111E9320G43, 111E9320G44, 111E9320G45, 111E9320G48, or 111E9320G49 onto any GE CF34-8E series engine. 

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) Contact Alan Strom, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: [email protected]; telephone (781) 238-7143; fax (781) 238-7199, for more information about this AD. 
	(j) Guidance on removal and replacement with an FAA-approved FADEC software version can be found in GE Alert Service Bulletin No. CF34-8E-AL S/B 73-A0020, dated November 12, 2008. For a copy of this service information, contact General Electric Company, GE-Aviation, Room 285, 1 Newmann Way, Cincinnati, OH 45215, telephone (513) 552- 3272; fax (513) 552-3329; e-mail: [email protected]. 

Material Incorporated by Reference 

	(k) None.

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/2009-24-06.json · aircraft systems.