31350 Federal Register / Vol. 74, No. 125 / Wednesday, July 1, 2009 / Rules and Regulations 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2009–0121; Directorate 

Identifier 2008–NE–36–AD; Amendment 39– 

15958; AD 2009–14–08] 

RIN 2120–AA64 

Airworthiness Directives; General 

Electric Company (GE) CF6–80C2B5F 

Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for GE 

CF6–80C2B5F turbofan engines. This 

AD requires removing certain part 

number (P/N) high-pressure compressor 

rotor (HPCR) stages 11–14 spool/shafts 

before they exceed a new, reduced life 

limit. This AD results from an internal 

GE audit that compared the life limited 

parts certification documentation to the 

airworthiness limitations section (ALS) 

of the instructions for continuing 

airworthiness (ICA). We are issuing this 

AD to prevent HPCR stages 11–14 spool/ 

shaft fatigue cracks caused by exceeding 

the life limit, which could result in a 

possible uncontained failure of the 

HPCR spool/shaft and damage to the 

airplane. 

DATES: This AD becomes effective 

August 5, 2009. 

ADDRESSES: The Docket Operations 

office is located at Docket Management 

Facility, U.S. Department of 

Transportation, 1200 New Jersey 

Avenue, SE., West Building Ground 

Floor, Room W12–140, Washington, DC 

20590–0001. 

FOR FURTHER INFORMATION CONTACT: 

Robert Green, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Part, Burlington, MA 01803; 

e-mail: robert.green@faa.gov; telephone 

(781) 238–7754; fax (781) 238–7199. 

SUPPLEMENTARY INFORMATION: The FAA 

proposed to amend 14 CFR part 39 with 

a proposed AD. The proposed AD 

applies to GE CF6–80C2B5F turbofan 

engines. We published the proposed AD 

in the Federal Register on February 20, 

2009 (74 FR 7831). That action proposed 

to require removing certain P/N HPCR 

stages 11–14 spool/shafts before they 

exceed a new, reduced life limit. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Operations office 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 street address for 

the Docket Operations office (telephone 

(800) 647–5527) is provided in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

Comments 

We provided the public the 

opportunity to participate in the 

development of this AD. We have 

considered the comment received. The 

commenter supports the proposal. 

Conclusion 

We have carefully reviewed the 

available data, including the comment 

received, and determined that air safety 

and the public interest require adopting 

the AD as proposed. 

Costs of Compliance 

We estimate that this AD will affect 

one engine installed on an airplane of 

U.S. registry. We also estimate that the 

actions would require no work-hours 

per engine. No parts are required. Based 

on these figures, we estimate there is no 

cost of this AD to U.S. operators. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

Section 106, describes the authority of 

the FAA Administrator. Subtitle VII, 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in Subtitle VII, 

Part A, Subpart III, Section 44701, 

‘‘General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

We have determined that this AD will 

not have federalism implications under 

Executive Order 13132. This AD will 

not have a substantial direct effect on 

the States, on the relationship between 

the national government and the States, 

or on the distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866; 

(2) Is not a ‘‘significant rule’’ under 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979); and 

(3) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

We prepared a summary of the costs 

to comply with this AD and placed it in 

the AD Docket. You may get a copy of 

this summary at the address listed 

under ADDRESSES. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Safety. 

Adoption of the Amendment 

■ Accordingly, under the authority 

delegated to me by the Administrator, 

the Federal Aviation Administration 

amends 14 CFR part 39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2009–14–08 General Electric Company: 

Amendment 39–15958. Docket No. 

FAA–2009–0121; Directorate Identifier 

2008–NE–36–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective August 5, 2009. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to General Electric 

Company (GE) CF6–80C2B5F turbofan 

engines with a high-pressure compressor 

rotor (HPCR) stages 11–14 spool/shaft, part 

number (P/N) 1703M74G03, installed. These 

engines are installed on, but not limited to, 

Boeing 747 series airplanes. 

Unsafe Condition 

(d) This AD results from an internal GE 

audit that compared the life limited parts 

certification documentation to the 

airworthiness limitations section (ALS) of the 

instructions for continuing airworthiness 

(ICA). We are issuing this AD to prevent 

HPCR stages 11–14 spool/shaft fatigue cracks 

caused by exceeding the life limit, which 

could result in a possible uncontained failure 

Federal Register / Vol. 74, No. 125 / Wednesday, July 1, 2009 / Rules and Regulations 31351 

of the HPCR spool/shaft and 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. 

New Reduced Life Limit for the HPCR Stages 

11–14 Spool/Shaft 

(f) Remove any CF6–80C2B5F turbofan 

engine that has an HPCR stages 11–14 spool/ 

shaft, P/N 1703M74G03, before the spool/ 

shaft meets or exceeds the new, reduced life 

cycle limit of 19,500 cycles. 

Installation Prohibition 

(g) After the effective date of this AD, do 

not install any CF6–80C2B5F turbofan engine 

that has an HPCR stages 11–14 spool/shaft, 

P/N 1703M74G03, that meets or exceeds 

19,500 cycles. 

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. 

Special Flight Permits 

(i) Under 14 CFR part 39.23, we are 

prohibiting special flight permits for this AD. 

Related Information 

(j) Robert Green, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Part, Burlington, MA 01803; 

e-mail: robert.green@faa.gov; 

telephone (781) 238–7754; fax (781) 238– 

7199. 

Material Incorporated by Reference 

(k) None. 

Issued in Burlington, Massachusetts, on 

June 25, 2009. 

Peter A. White, 

Assistant Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. E9–15513 Filed 6–30–09; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HOMELAND 

SECURITY 

Coast Guard 

33 CFR Parts 100 and 165 

[Docket No. USCG–2009–0422] 

RIN 1625–AA08, 1625–AA00 

Safety Zones: Summer 2009 Fireworks, 

Coastal Massachusetts 

AGENCY: Coast Guard, DHS. 

ACTION: Temporary final rule. 

SUMMARY: The Coast Guard is 

suspending several special local 

regulations and establishing temporary 

safety zones in various communities 

along the central and northern coastline 

of Massachusetts. These safety zones 

will last for the limited duration of the 

fireworks. The zones are necessary to 

protect spectators, participants, and 

vessels from the hazards associated with 

fireworks displays. 

DATES: This rule is effective from June 

27, 2009 through September 5, 2009. 

ADDRESSES: Documents indicated in this 

preamble as being available in the 

docket are part of docket USCG–2009– 

0422 and are available online by going 

to http://www.regulations.gov, selecting 

the Advanced Docket Search option on 

the right side of the screen, inserting 

USCG–2009–0422 in the Docket ID box, 

pressing Enter, and then clicking on the 

item in the Docket ID column. They are 

also available for inspection or copying 

at the following location: The Docket 

Management Facility (M–30), U.S. 

Department of Transportation, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue, SE., 

Washington, DC 20590, between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. 

FOR FURTHER INFORMATION CONTACT: If 

you have questions on this temporary 

rule, call or e-mail Ensign Marie 

Haywood, U.S. Coast Guard, Sector 

Boston, Waterways Management 

Division; telephone 617–223–5160, email Michele.M.Haywood@uscg.mil. If 

you have questions on viewing the 

docket, call Renee V. Wright, Program 

Manager, Docket Operations, telephone 

202–366–9826. 

SUPPLEMENTARY INFORMATION: 

Regulatory Information 

The Coast Guard is issuing this 

temporary final rule without prior 

notice and opportunity to comment 

pursuant to authority under section 4(a) 

of the Administrative Procedure Act 

(APA) (5 U.S.C. 553(b)). This provision 

authorizes an agency to issue a rule 

without prior notice and opportunity to 

comment when the agency for good 

cause finds that those procedures are 

‘‘impracticable, unnecessary, or contrary 

to the public interest.’’ Under 5 U.S.C. 

553(b)(B), the Coast Guard finds that 

good cause exists for not publishing a 

notice of proposed rulemaking (NPRM) 

with respect to this rule because the 

Coast Guard was not notified of these 

events with adequate time to publish a 

NPRM, for fireworks displays that 

scheduled to occur on various dates 

between June 27, 2009 and September 

05, 2009. Any delay encountered in the 

regulation’s effective date would be 

contrary to the public interest, since the 

safety zones are needed to prevent 

traffic from transiting a portion of the 

coastal waters of Massachusetts during 

the fireworks displays thus ensuring 

that the maritime public is protected 

from any potential harm associated with 

such an event. 

For the same reason above, under 5 

U.S.C. 553(d)(3), the Coast Guard finds 

that good cause exists for making this 

rule effective less than 30 days after 

publication in the Federal Register. 

Background and Purpose 

Various Massachusetts coastal cities 

are having fireworks displays on or near 

navigable waterways this summer. 

In order to maintain continuity 

between the regulations for fireworks 

events established in 33 CFR 100.114 

and the rain dates requested for the 

same events this year, this temporary 

rule suspends several special local 

regulations entries in 33 CFR PART 

100.114 FIREWORKS DISPLAY TABLE. 

It also establishes temporary safety 

zones surrounding the events as 

described in the List of Subjects. The 

proposed zones will protect the 

maritime public from the dangers 

inherent in waterborne fireworks 

displays. The Captain of the Port does 

not anticipate any negative impact on 

vessel traffic due to implementation of 

these temporary safety zones. Public 

notifications will be made prior to the 

effective period of each proposed zone 

via Broadcast and Local Notice to 

Mariners. 

Discussion of Rule 

The Coast Guard is establishing 

temporary safety zones in various 

coastal waterways throughout central 

and northern Massachusetts. The safety 

zones will be in effect for the times 

listed in the List of Subjects. Marine 

traffic will only be restricted from a 

portion of the waterway as stated in the 

List of Subjects to protect the safety of 

the maritime public. Due to the limited 

time frame of the fireworks display, the 

Captain of the Port anticipates minimal 

negative impact on vessel traffic due to 

this event. Public notifications will be 

made prior to the effective period via 

local and broadcast notice to mariners. 

Regulatory Analyses 

We developed this rule after 

considering numerous statutes and 

executive orders related to rulemaking. 

Below we summarize our analyses 

based on 13 of these statutes or 

executive orders. 

Regulatory Planning and Review 

This rule is not a significant 

regulatory action under section 3(f) of 

Executive Order 12866, Regulatory