Federal Register / Vol. 75, No. 141 / Friday, July 23, 2010 / Proposed Rules 43099 

The Boeing Company: Docket No. FAA– 

2010–0698; Directorate Identifier 2009– 

NM–264–AD. 

Comments Due Date 

(a) The FAA must receive comments on 

this AD action by September 7, 2010. 

Affected ADs 

(b) This AD supersedes AD 2008–23–19, 

Amendment 39–15740. 

Applicability 

(c) This AD applies to all The Boeing 

Company Model 757–200, –200CB, –200PF, 

and –300 series airplanes, certificated in any 

category. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 57: Wings. 

Unsafe Condition 

(e) This AD results from a fuel system 

review conducted by the manufacturer. We 

have received reports from the manufacturer 

that additional fasteners in the main fuel 

tanks must be sealed for lightning strike 

protection. The Federal Aviation 

Administration is issuing this AD to detect 

and correct improper wire bundle support 

installation and sleeving and to prevent 

improperly sealed fasteners in the main and 

center fuel tanks from becoming an ignition 

source, in the event of a fault current or 

lightning strike, which could result in a fuel 

tank explosion and consequent loss of the 

airplane. 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

Restatement of Requirements of AD 2008– 

23–19, With Revised Service Information 

Fastener Sealing and Inspections 

(g) Within 60 months after December 30, 

2008 (the effective date of AD 2008–23–19), 

seal the applicable fasteners and do the 

general visual inspections of the wire bundle 

support installations, and do all the 

applicable corrective actions before further 

flight, by accomplishing all of the applicable 

actions specified in the Accomplishment 

Instructions of Boeing Alert Service Bulletin 

757–57A0064, dated July 16, 2007; or Part 1 

through Part 10 of the Work Instructions of 

Boeing Alert Service Bulletin 757–57A0064, 

Revision 1, dated October 5, 2009. 

New Requirements of This AD 

Fastener Sealing on the Rear Spar 

(h) For airplanes on which Boeing Alert 

Service Bulletin 757–57A0064, dated July 16, 

2007, was done: Within 60 months after 

December 30, 2008 (the effective date of AD 

2008–23–19), seal the fasteners on the rear 

spar inside the left and right main fuel tanks, 

in accordance with Part 11 of the Work 

Instructions of Boeing Alert Service Bulletin 

757–57A0064, Revision 1, dated October 5, 

2009. 

Alternative Methods of Compliance 

(AMOCs) 

(i)(1) The Manager, Seattle Aircraft 

Certification Office (ACO), FAA, has the 

authority to approve AMOCs for this AD, if 

requested using the procedures found in 14 

CFR 39.19. Send information to ATTN: Tak 

Kobayashi, Aerospace Engineer, Propulsion 

Branch, ANM–140S, FAA, Seattle Aircraft 

Certification Office, 1601 Lind Avenue, SW., 

Renton, Washington 98057–3356; telephone 

(425) 917–6499; fax (425) 917–6590. 

Information may be e-mailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(2) To request a different method of 

compliance or a different compliance time 

for this AD, follow the procedures in 14 CFR 

39.19. Before using any approved AMOC on 

any airplane to which the AMOC applies, 

notify your principal maintenance inspector 

(PMI) or principal avionics inspector (PAI), 

as appropriate, or lacking a principal 

inspector, your local Flight Standards District 

Office. The AMOC approval letter must 

specifically reference this AD. 

(3) AMOCs approved previously in 

accordance with AD 2008–23–19, 

Amendment 39–15740, are approved as 

AMOCs for the corresponding provisions of 

paragraph (g) of this AD. 

Issued in Renton, Washington, on July 15, 

2010. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–18017 Filed 7–22–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0732; Directorate 

Identifier 2010–NE–04–AD] 

RIN 2120–AA64 

Airworthiness Directives; General 

Electric Company (GE) CT7–9C and 

–9C3 Turboprop Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for GE 

CT7–9C and –9C3 turboprop engines 

with certain serial number (S/N) gas 

generator turbine (GGT) shafts, part 

number (P/N) 6068T44P02, installed. 

This proposed AD would require 

inspecting the GGT shaft for 

nonconforming land balance-cuts, and if 

found, removing the shaft from service. 

This proposed AD results from reports 

of a manufacturing quality problem. We 

are proposing this AD to detect 

nonconforming GGT shaft land balancecuts, which could result in the shaft 

failing before its published life limit, 

and which could result in an 

uncontained engine failure and damage 

to the airplane. 

DATES: We must receive any comments 

on this proposed AD by September 21, 

2010. 

ADDRESSES: Use one of the following 

addresses to comment on this proposed 

AD. 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov and follow 

the instructions for sending your 

comments electronically. 

• Mail: Docket Management Facility, 

U.S. Department of Transportation, 1200 

New Jersey Avenue, SE., West Building 

Ground Floor, Room W12–140, 

Washington, DC 20590–0001. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 

5 p.m., Monday through Friday, except 

Federal holidays. 

• Fax: (202) 493–2251. 

Contact General Electric Company, 

GE–Aviation, Room 285, 1 Newmann 

Way, Cincinnati, Ohio 45215; e-mail 

geae.aoc@ge.com; telephone (513) 552– 

3272; fax (513) 552–3329, for a copy of 

the service information identified in this 

proposed AD. 

FOR FURTHER INFORMATION CONTACT: 

Barbara Caufield, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

e-mail: barbara.caufield@faa.gov; 

telephone (781) 238–7146; fax (781) 

238–7199. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send us any written 

relevant data, views, or arguments 

regarding this proposal. Send your 

comments to an address listed under 

ADDRESSES. Include ‘‘Docket No. FAA– 

2010–0732; Directorate Identifier 2010– 

NE–04–AD’’ in the subject line of your 

comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of the proposed AD. We will 

consider all comments received by the 

closing date and may amend the 

proposed AD in light of those 

comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact with FAA 

personnel concerning this proposed AD. 

Using the search function of the Web 

site, anyone can find and read the 

comments in any of our dockets, 

WReier-Aviles on DSKGBLS3C1PROD with PROPOSALS

43100 Federal Register / Vol. 75, No. 141 / Friday, July 23, 2010 / Proposed Rules 

including, if provided, the name of the 

individual who sent the comment (or 

signed the comment on behalf of an 

association, business, labor union, etc.). 

You may review the DOT’s complete 

Privacy Act Statement in the Federal 

Register published on April 11, 2000 

(65 FR 19477–78). 

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 proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Operations 

office (telephone (800) 647–5527) is the 

same as the Mail address provided in 

the ADDRESSES section. Comments will 

be available in the AD docket shortly 

after receipt. 

Discussion 

We have received reports of 21 

nonconforming land balance-cuts on 

GGT shafts, P/N 6068T44P02. The 

nonconforming land balance-cuts can 

negatively affect the low-cycle fatigue 

life capability of the shaft. This 

condition, if not corrected, could result 

in the shaft failing before its published 

life limit, and which could result in an 

uncontained engine failure and damage 

to the airplane. 

Relevant Service Information 

We have reviewed and approved the 

technical contents of GE CT7–TP Alert 

Service Bulletin (ASB) 72–A0501, 

Revision 01, dated March 3, 2010, that 

lists the affected shafts by P/N and S/N, 

and describes procedures for inspecting 

the GGT shaft for nonconforming land 

balance-cuts. 

FAA’s Determination and Requirements 

of the Proposed AD 

We have evaluated all pertinent 

information and identified an unsafe 

condition that is likely to exist or 

develop on other products of this same 

type design. We are proposing this AD, 

which would require inspecting certain 

S/N GGT shafts, P/N 6068T44P02, for 

nonconforming land balance-cuts, and if 

found, replacing the shaft. The proposed 

AD would require you to use the service 

information described previously to 

perform these actions. 

Costs of Compliance 

We estimate that this proposed AD 

would affect five engines installed on 

airplanes of U.S. registry. We also 

estimate that it would take about 1 

work-hour per engine to perform the 

inspection, 1.5 work-hours to replace 

the shaft, and that the average labor rate 

is $85 per work-hour. Required parts 

would cost about $28,633 per engine. 

Based on these figures, we estimate the 

total cost of the proposed AD to U.S. 

operators to be $144,227. 

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 

proposed AD would not have federalism 

implications under Executive Order 

13132. This proposed AD would 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 the proposed AD: 

1. Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866; 

2. Is not a ‘‘significant rule’’ under the 

DOT Regulatory Policies and Procedures 

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

3. Would 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 regulatory evaluation 

of the estimated costs to comply with 

this proposed AD. 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, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Under the authority delegated to me 

by the Administrator, the Federal 

Aviation Administration proposes to 

amend 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: 

General Electric Company (GE): Docket No. 

FAA–2010–0732; Directorate Identifier 

2010–NE–04–AD. 

Comments Due Date 

(a) The Federal Aviation Administration 

(FAA) must receive comments on this 

airworthiness directive (AD) action by 

September 21, 2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to GE CT7–9C and 

–9C3 turboprop engines with gas generator 

turbine (GGT) shafts, part number (P/N) 

6068T44P02, that have a serial number (S/N) 

listed in Table 1 of this AD, installed. These 

engines are installed on, but not limited to, 

EADS CASA (formerly Construcciones 

Aeronauticas, S.A.) CN–235 series airplanes. 

TABLE 1—AFFECTED GGT SHAFT S/NS

Affected Shaft S/Ns 

GATHHCPC GATHHJR7 GATHHJR9 GATHHKG6 

GATHHM9R GATHHWM3 GATHJ4ED GATHJ9FL 

GATHJ19J GATHJE8P GATHJWWR GATHK0KM 

GATHK2N1 GATHK3M3 GATHK90K GATHK96D 

GATHKF9R GATHKH36 GATHKMP7 GATHKRKN 

NCE715DA 

WReier-Aviles on DSKGBLS3C1PROD with PROPOSALS

Federal Register / Vol. 75, No. 141 / Friday, July 23, 2010 / Proposed Rules 43101 

Unsafe Condition 

(d) This AD results from reports of a 

manufacturing quality problem. We are 

issuing this AD to detect nonconforming GGT 

shaft land balance-cuts, which could result in 

the shaft failing before its published life 

limit, and which could result in an 

uncontained engine failure and damage to 

the airplane. 

Compliance 

(e) You are responsible for having the 

actions required by this AD performed at the 

first shop visit after the effective date of this 

AD, or within 5,000 cycles-since-new, 

whichever occurs first, unless the actions 

have already been done. 

Inspection for Nonconforming Land 

Balance-Cuts 

(f) For CT7–9C and –9C3 engines with a 

GGT shaft, P/N 6068T44P02, that has a S/N 

listed in Table 1 of this AD, installed, inspect 

the shaft for nonconforming land balancecuts. Use the Accomplishment Instructions 

3.A.(1) through 3.A.(4) of GE CT7–TP Alert 

Service Bulletin 72–A0501, Revision 01, 

dated March 3, 2010, to perform the 

inspection. 

(g) If you find any nonconforming land 

balance-cuts, remove the shaft from service. 

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. 

Related Information 

(i) Contact Barbara Caufield, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; e-mail: barbara.caufield@faa.gov; 

telephone (781) 238–7146; fax (781) 238– 

7199, for more information about this AD. 

(j) GE CT7–TP Alert Service Bulletin 72– 

A0501, Revision 01, dated March 3, 2010, 

pertains to the subject of this AD. Contact 

General Electric Company, GE–Aviation, 

Room 285, 1 Newmann Way, Cincinnati, 

Ohio 45215; e-mail geae.aoc@ge.com; 

telephone (513) 552–3272; fax (513) 552– 

3329, for a copy of this service information. 

Issued in Burlington, Massachusetts, on 

July 15, 2010. 

Peter A. White, 

Assistant Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–17999 Filed 7–22–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0736; Directorate 

Identifier 2010–CE–035–AD] 

RIN 2120–AA64 

Airworthiness Directives; PIAGGIO 

AERO INDUSTRIES S.p.A Model 

PIAGGIO P–180 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for the 

products listed above. This proposed 

AD results from mandatory continuing 

airworthiness information (MCAI) 

originated by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

A damaged fuel heater caused a fuel 

leakage in the engine nacelle; investigation 

revealed that the damage to the fuel heater 

was due to chafing with an oil cooling system 

hose. 

PIAGGIO AERO INDUSTIRES (PAI) issued 

Service Bulletin (SB) 80–0175, which was 

applicable to all aeroplanes and contained 

instructions for a repetitive inspection of the 

affected parts and, if necessary, their 

replacement and/or for the repositioning of 

oil/fuel tubing if minimum clearances were 

not found. 

The proposed AD would require actions 

that are intended to address the unsafe 

condition described in the MCAI. 

DATES: We must receive comments on 

this proposed AD by September 7, 2010. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, 

M–30, 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. 

Examining the AD Docket 

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 proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Office 

(telephone (800) 647–5527) is in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

FOR FURTHER INFORMATION CONTACT: S.M. 

Nagarajan, Aerospace Engineer, FAA, 

Small Airplane Directorate, 901 Locust, 

Room 301, Kansas City, Missouri 64106; 

telephone: (816) 329–4145; fax: (816) 

329–4090. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2010–0736; Directorate Identifier 

2010–CE–035–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD because of those 

comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this proposed AD. 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued AD No. 2010– 

0125, dated June 23, 2010 (referred to 

after this as ‘‘the MCAI’’), to correct an 

unsafe condition for the specified 

products. The MCAI states: 

A damaged fuel heater caused a fuel 

leakage in the engine nacelle; investigation 

revealed that the damage to the fuel heater 

was due to chafing with an oil cooling system 

hose. 

Piaggio Aero Industries (PAI) issued 

Service Bulletin (SB) 80–0175, which was 

applicable to all aeroplanes and contained 

instructions for a repetitive inspection of the 

affected parts and, if necessary, their 

replacement and/or for the repositioning of 

oil/fuel tubing if minimum clearances were 

not found. 

ENAC of Italy issued PA 2002–335 to 

require the accomplishment of these 

corrective actions. 

WReier-Aviles on DSKGBLS3C1PROD with PROPOSALS