2009-20-14 Rolls-Royce plc (RR) (Formerly Rolls-Royce Limited): Amendment 39-16037. Docket No. FAA-2009-0057; Directorate Identifier 85-ANE-25-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective November 17, 2009.
Affected ADs
(b) This AD supersedes AD 86-07-01, Amendment 39-5273.
Applicability
(c) This AD applies to RR models RB211-535E4-37, RB211-535E4-B- 37, and RB211-535E4-B-75 turbofan engines that don't incorporate RR Service Bulletin (SB) RB.211-72-8045. These engines are installed on, but not limited to, Boeing 757 and Tupolev Tu204 airplanes.
Unsafe Condition
(d) This AD results from the FAA approving Revision 3 to Mandatory Service Bulletin (MSB) RB.211-72-7775, which adds an alternative eddy current inspection (ECI) method. We are issuing this AD to prevent an uncontained outer combustion case burst, which could result in damage to 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.
Initial Inspection
(f) Perform an initial inspection of the outer combustion casing. Use the
Accomplishment Instructions paragraph 3.B. or paragraph 3.C. of RR MSB RB.211-72-7775, Revision 3, dated April 9, 1999, and the following compliance schedules:
(1) For cases with 1,500 or fewer cycles-since-new (CSN) on the effective date of this AD, inspect before accumulating 1,500 CSN.
(2) For cases with more than 1,500 CSN on the effective date of this AD, inspect within 50 cycles-in-service (CIS) after the effective date of this AD.
(3) If you detect any cracks of 1.5 inches or more in length, replace the case before further flight.
Repetitive Inspections
(g) Thereafter, inspect cases at the following intervals. Use the Accomplishment Instructions paragraph 3.B. or paragraph 3.C. of RR MSB RB.211-72-7775, Revision 3, dated April 9, 1999.
(1) Inspect within 500 cycles-since-last inspection (CSLI) if you detected no cracks during the last inspection.
(2) Inspect within 100 CSLI if you detected cracks less than or equal to 0.5 inch in length during the last inspection.
(3) Inspect within 50 CSLI if you detected cracks greater than 0.5 inch but less than 1.5 inches in length.
Credit for Previous Inspections
(h) Cases inspected before the effective date of this AD using RB.211-72-7775, Revision 2, dated February 27, 1998, or earlier issue, meet the requirements of this AD for the initial or repetitive inspections specified in paragraphs (f) through (f)(3) and (g) through (g)(3) of this AD.
Alternative Methods of Compliance
(i) The Manager, Engine Certification Office, FAA, 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
(j) Civil Aviation Authority airworthiness directive 008-07-85, dated June 19, 1985, also addresses the subject of this AD.
(k) Contact Ian Dargin, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail:
[email protected]; telephone (781) 238-7178; fax (781) 238-7199, for more information about this AD.
Material Incorporated by Reference
(l) You must use Rolls-Royce plc Mandatory Service Bulletin RB.211-72-7775, Revision 3, dated April 9, 1999 to perform the inspections required by this AD. The Director of the Federal Register approved the incorporation by reference of this service bulletin in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; telephone: 44 (0) 1332-242424; fax: 44 (0) 1332-249936, for a copy of this service information. You may review copies at the FAA, New England Region, 12 New England Executive Park, Burlington, MA; or 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.
