Airworthiness Directives; Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines

[Federal Register Volume 76, Number 185 (Friday, September 23, 2011)]
[Rules and Regulations]
[Page 59013]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2011-24282]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2010-0821; Directorate Identifier 2010-NE-30-AD; 
Amendment 39-16657; AD 2011-08-07]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce plc (RR) RB211-Trent 800 
Series Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; correction.

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SUMMARY: The FAA is correcting an airworthiness directive (AD) that 
published in the Federal Register. That AD applies to RR RB211-Trent 
875-17, RB211-Trent 877-17, RB211-Trent 884-17, RB211-Trent 884B-17, 
RB211-Trent 892-17, RB211-Trent 892B-17, and RB211-Trent 895-17 
turbofan engines. The compliance instructions in the regulatory section 
paragraphs (e)(3) and (e)(5) are partially correct and do not fully 
meet our original intent. This document corrects those errors. In all 
other respects, the original document remains the same.

DATES: The effective date for AD 2011-08-07 remains June 7, 2011.

ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov; or in person at the Docket Management Facility 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains this AD, the regulatory evaluation, 
any comments received, and other information. The address for the 
Docket Office (phone: 800-647-5527) is Document Management Facility, 
U.S. Department of Transportation, Docket Operations, M-30, West 
Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., 
Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Alan Strom, Aerospace Engineer, Engine 
Certification Office, FAA, Engine & Propeller Directorate, 12 New 
England Executive Park, Burlington, MA 01803; phone: 781-238-7143; fax: 
781-238-7199; e-mail: [email protected].

SUPPLEMENTARY INFORMATION: Airworthiness Directive 2011-08-07, 
Amendment 39-16657 (76 FR 24798, May 3, 2011), currently requires 
initial and repetitive ultrasonic inspections of the affected low-
pressure compressor blades, identified by serial number.
    As published, paragraph (e)(3) in the regulatory section 
inadvertently referenced RR Alert Service Bulletin (SB) No. RB.211-72-
AG244, Revision 1, dated January 26, 2010, for performing the 
ultrasonic inspections of blades, without differentiating between 
blades removed or blades installed. Also as published, paragraph (e)(5) 
in the regulatory section inadvertently left out that it applies only 
to blades that were removed. This document corrects those errors.
    No other part of the preamble or regulatory information has been 
changed; therefore, only the changed portion of the final rule is being 
published in the Federal Register.
    The effective date of this AD remains June 7, 2011.

Correction of Regulatory Text


Sec.  39.13  [Corrected]

0
In the Federal Register of May 3, 2011, on page 24801, in the first 
column, paragraph (e)(3) of AD 2011-08-07 is corrected to read as 
follows:
    (3) For blades that are:
    (i) Removed from the engine, use paragraphs 3.A.(1) through 3.A.(2) 
of Accomplishment Instructions of RR ASB No. RB.211-72-AG244, Revision 
1, dated January 26, 2010, and paragraphs 1 through 3.B. of Appendix 1 
of that ASB, to perform the UIs.
    (ii) Not removed from the engine, use paragraphs 3.B.(1) through 
3.B.(3) of Accomplishment Instructions of RR ASB No. RB.211-72-AG244, 
Revision 1, dated January 26, 2010, and paragraphs 1 through 3.C. of 
Appendix 2 of that ASB, to perform the UIs.
    In the Federal Register of May 3, 2011, on page 24801, in the 
second column, paragraph (e)(5) of AD 2011-08-07 is corrected to read 
as follows:
    (5) For blades that are removed from the engine and pass 
inspection, re-apply dry film lubricant, and install all blades in 
their original position.

    Issued in Burlington, Massachusetts on September 9, 2011.
Peter A. White,
Manager, Engine & Propeller Directorate, Aircraft Certification 
Service.
[FR Doc. 2011-24282 Filed 9-22-11; 8:45 am]
BILLING CODE 4910-13-P

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