Airworthiness Directives; Rolls-Royce Corporation (formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) Models 250-C28, -C28B, and -C28C Turboshaft Engines; Correction

[Federal Register Volume 70, Number 154 (Thursday, August 11, 2005)]
[Rules and Regulations]
[Page 46754]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-15896]



[[Page 46754]]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2004-18538; Directorate Identifier 2004-NE-29-AD; 
Amendment 39-13711; AD 2004-14-02]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce Corporation (formerly 
Allison Engine Company, Allison Gas Turbine Division, and Detroit 
Diesel Allison) Models 250-C28, -C28B, and -C28C Turboshaft Engines; 
Correction

AGENCY: Federal Aviation Administration, DOT.

ACTION: Final rule; correction.

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SUMMARY: This document makes a correction to Airworthiness Directive 
(AD) 2004-14-02. That AD applies to Rolls-Royce Corporation (formerly 
Allison Engine Company, Allison Gas Turbine Division, and Detroit 
Diesel Allison) models 250-C28, -C28B, and -C28C turboshaft engines 
with certain serial number (SN) third-stage turbine wheels, part number 
(P/N) 6899383. We published AD 2004-14-02 in the Federal Register on 
July 9, 2004 (69 FR 41389). The SUMMARY and the SUPPLEMENTAL 
INFORMATION paragraphs each have a sentence that is not clear. This 
document corrects these two sentences. In all other respects, the 
original document remains the same.

DATES: Effective August 11, 2005.

FOR FURTHER INFORMATION CONTACT: John Tallarovic, Aerospace Engineer, 
Chicago Aircraft Certification Office, FAA, 2300 East Devon Avenue, Des 
Plaines, IL 60018-4696; telephone (847) 294-8180; fax (847) 294-7834.

SUPPLEMENTARY INFORMATION: A final rule; request for comments AD, FR 
Doc. 04-15508, that applies to Rolls-Royce Corporation (formerly 
Allison Engine Company, Allison Gas Turbine Division, and Detroit 
Diesel Allison) models 250-C28, -C28B, and -C28C turboshaft engines 
with certain SN third-stage turbine wheels, P/N 6899383, was published 
in the Federal Register on July 9, 2004, (69 FR 41389). The following 
corrections are needed:

0
On page 41390, in the first column, in the SUMMARY, in the twelfth 
line, ``before reaching new reduced life limits'' is corrected to read 
``before the new reduced life limits for these turbine wheels are 
reached''.
0
On page 41390, in the first column, in the SUPPLEMENTARY INFORMATION, 
in the twelfth line, ``manufactured and accepted with a blueprint 
variance'' is corrected to read ``manufactured and inadvertently 
accepted with a blueprint variance''.

    Issued in Burlington, MA, on August 4, 2005.
Jay J. Pardee,
Manager, Engine and Propeller Directorate, Aircraft Certification 
Service.
[FR Doc. 05-15896 Filed 8-10-05; 8:45 am]
BILLING CODE 4910-13-P

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