Airworthiness Directives; General Electric Company (GE) CF34-1A, CF34-3A, and CF34-3B Series Turbofan Engines; Delay of Effective Date

[Federal Register Volume 74, Number 250 (Thursday, December 31, 2009)]
[Rules and Regulations]
[Pages 69259-69260]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E9-30978]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2009-0328; Directorate Identifier 2008-NE-44-AD; 
Amendment 39-16103; AD 2009-24-11]
RIN 2120-AA64


Airworthiness Directives; General Electric Company (GE) CF34-1A, 
CF34-3A, and CF34-3B Series Turbofan Engines; Delay of Effective Date

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule; delay of effective date.

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SUMMARY: The FAA is delaying the effective date of the final rule 
airworthiness directive (AD) 2009-24-11, which published in the Federal 
Register, for an additional 30 days, from January 4, 2010 to February 
3, 2010. The FAA is delaying the effective date to allow us a 
sufficient amount of time to make corrections to the compliance text of 
the final rule.

DATES: The effective date for the final rule published in the Federal 
Register on November 30, 2009 (74 FR 62481) is delayed until February 
3, 2010.

FOR FURTHER INFORMATION CONTACT: John Frost, Aerospace Engineer, Engine 
Certification Office, FAA, Engine & Propeller Directorate, 12 New 
England Executive Park, Burlington, MA 01803; e-mail: 
[email protected]; telephone (781) 238-7756; fax (781) 238-7199.

SUPPLEMENTARY INFORMATION: On November 30, 2009 (74 FR 62481), we 
published a final rule AD, FR Doc. E9-28236, in the Federal Register. 
That AD applies to GE CF34-1A, CF34-3A, and CF34-3B series turbofan 
engines. We are delaying the effective date to allow us a sufficient 
amount of time to make corrections to the compliance text of the final 
rule. Since AD 2009-24-11 was issued, we discovered that when we 
recodified the compliance section as part of our response to a comment 
received on the proposed AD, we inadvertently left out of the AD 
certain fan blade effectivity information from paragraphs (f) and (g) 
and (j). Paragraphs (f) and (g) are missing information on fan blades, 
P/Ns 6018T30P14 or 4923T56G08, that have any fan blade S/Ns listed in 
Appendix A of General Electric Aircraft Engines (GEAE) Service Bulletin 
(SB) No. CF34-AL S/B 72-0245, Revision 01, dated July 30, 2008. Also, 
paragraph (j) is missing

[[Page 69260]]

information on fan blades, P/N 6018T30P14 or P/N 4923T56G08, that have 
any fan blade S/Ns listed in Appendix A of GEAE SB No. CF34-BJ S/B72-
0229, Revision 01, dated July 30, 2008.

    Issued in Burlington, Massachusetts, on December 23, 2009.
Francis A. Favara,
Manager, Engine and Propeller Directorate, Aircraft Certification 
Service.
[FR Doc. E9-30978 Filed 12-30-09; 8:45 am]
BILLING CODE 4910-13-P

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