FAA orders · airworthiness directive · current

2011-18-02: Fan rotor spinner

FAA order 2011-18-02 is an airworthiness directive in force since September 26, 2011. The FAA's subject line: Fan rotor spinner. It names the General Electric CF34-10E5A1, General Electric CF34-10E6, General Electric CF34 series engines: about 702 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: CF34-10E2A1, CF34-10E5, CF34-10E5A1, CF34-10E6, CF34-10E6A1, CF34-10E7, CF34-10E7-B
Engine series: General Electric CF34-10E5A1 7 aircraft
General Electric CF34-10E6 21 aircraft
General Electric CF34 series 674 aircraft

Dates and paperwork

In force since: September 26, 2011
Published: August 22, 2011 (signed August 15, 2011)
Docket: FAA-2011-0187
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 the products listed above with certain part number (P/N) fan rotor spinners installed. This AD requires removing from service certain fan rotor blade retainers, and removing from service the fan rotor spinner support that was installed with those fan rotor blade retainers. This AD was prompted by a fan rotor spinner support found cracked at the attachment lugs. We are issuing this AD to prevent high-cycle fatigue cracking of the fan rotor spinner support attachment lugs, leading to separation of the fan rotor spinner assembly, uncontained failure of the engine, and damage to the airplane.

The order itself the regulatory text, as published

Show the full text (3,113 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): 

2011-18-02 General Electric Company: Amendment 39-16784 ; Docket No. FAA-2011-0187; Directorate Identifier 2011-NE-07-AD. 

Effective Date 

	(a) This AD is effective September 26, 2011. 

Affected ADs 

	(b) None. 

Applicability 

	(c) This AD applies to General Electric Company (GE) CF34- 10E2A1; CF34-10E5; CF34-10E5A1; CF34-10E6; CF34-10E6A1; CF34-10E7; and CF34-10E7-B turbofan engines, with a fan rotor spinner part number (P/N) 2050M34G03; 2050M34G04; 2050M34G05; 2050M34G06; 2437M60G01; or 2437M60G02, installed. 

Unsafe Condition(d) This AD was prompted by a fan rotor spinner support found cracked at the 

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attachment lugs. We are issuing this AD to prevent high-cycle fatigue cracking of the fan rotor spinner support attachment lugs, leading to separation of the fan rotor spinner assembly, uncontained failure of the engine, and damage to the airplane. 

Compliance 

	(e) Comply with this AD within 1,800 hours-in-service after the effective date of this AD, unless already done. 

Removal of Fan Rotor Blade Retainers 

	(f) Remove from service the 24 fan rotor blade retainers, P/N 2050M56P02. 

Removal of Fan Rotor Spinner Support 

	(g) Remove from service the fan rotor spinner support that operated with the fan rotor blade retainers removed in paragraph (f) of this AD. 

Installation Prohibition 

	(h) After the effective date of this AD, do not install any fan rotor blade retainer, P/N 2050M56P02, into any engine. Do not attempt to repair, make serviceable, orre-install, this part. 
	(i) After the effective date of this AD, do not install any fan rotor spinner support removed in paragraph (g) of this AD, into any engine. Do not attempt to repair, make serviceable, or re-install, this part. 

Alternative Methods of Compliance (AMOCs) 

	(j) The Manager, Engine Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. 

Related Information 

	(k) For more information about this AD, contact John Frost, Aerospace Engineer, Engine Certification Office, FAA, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7756; fax: 781- 238-7199; e-mail: john.frost@faa.gov. 
	(l) Refer to GE Service Bulletin No. CF34-10E S/B 72-0186, for related information. Contact GE-Aviation, M/D Rm. 285, One Neumann Way, Cincinnati, OH 45215, phone: 513-552-3272; e-mail: geae.aoc@ge.com, for a copy of this service information. You may review copies of the referenced service information at the 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.

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/2011-18-02.json · aircraft systems.