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2006-23-07: Fan blade annulus fillers

FAA order 2006-23-07 is an airworthiness directive in force since November 22, 2006. The FAA's subject line: Fan blade annulus fillers. It names the Rolls-Royce RB-211 series engine: about 182 aircraft on the U.S. register today, 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
Rolls-Royce plc
Models
RB211 Trent 768-60, RB211 Trent 772-60, RB211 Trent 772B-60
Engine series
Rolls-Royce RB-211 series 182 aircraft

Dates and paperwork

In force since
November 22, 2006
Published
November 7, 2006 (signed October 31, 2006)
Docket
FAA-2006-25855
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 Rolls-Royce plc Trent 768-60, Trent 772-60, and Trent 772B-60 turbofan engines. This AD requires removing from service certain sets of fan blade annulus fillers at a new life limit. This AD results from six reports of fan annulus filler release into the engine. We are issuing this AD to prevent a dual-engine shutdown on twin-engine airplanes.

The order itself the regulatory text, as published

Show the full text (1,954 characters)
2006-23-07 Rolls Royce plc: Amendment 39-14819. Docket No. FAA-2006- 25855; Directorate Identifier 2006-NE-29-AD. Effective Date (a) This airworthiness directive (AD) becomes effective November 22, 2006. Affected ADs (b) None. Applicability (c) This AD applies to Rolls-Royce plc Trent 768-60, Trent 772- 60, and Trent 772B-60 turbofan engines. These engines are installed on, but not limited to, Airbus A330 airplanes. Unsafe Condition (d) This AD results from six reports of fan annulus filler release into the engine. We are issuing this AD to prevent a dual- engine shutdown on twin-engine airplanes. 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. Actions to Take on or Before December 31, 2006 (f) On or before December 31, 2006, if an airplane has fan annulus fillers, part number (P/N) FK21226, installed in both engines or has fan annulus fillers, P/N FK21226, in one engine and P/N FK22974, in the other engine, then the accumulated life of the fan annulus fillers on at least one engine must not exceed 7,500 cycles-in-service (CIS). Replace one of the engines, or one set of fan annulus fillers before further flight to comply with this requirement. Actions to Take After December 31, 2006 (g) After December 31, 2006, remove sets of fan annulus fillers, P/N FK21226, before exceeding the life limit of 6,500 CIS. 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) EASA airworthiness directive No. 2006-0116, dated May 8, 2006, also addresses the subject of this AD. (j) Rolls-Royce plc Alert Service Bulletin No. RB.211-72-AF109, dated March 28, 2006, pertains 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/2006-23-07.json · aircraft systems.