This section of the FEDERAL REGISTER

contains notices to the public of the proposed

issuance of rules and regulations. The

purpose of these notices is to give interested

persons an opportunity to participate in the

rule making prior to the adoption of the final

rules.

Proposed Rules Federal Register

15707 

Vol. 79, No. 55 

Friday, March 21, 2014 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–1059; Directorate 

Identifier 2013–NE–36–AD] 

RIN 2120–AA64 

Airworthiness Directives; Pratt & 

Whitney Canada Corp. Turboprop 

Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for certain 

Pratt & Whitney Canada Corp. (P&WC) 

PW120, PW121, PW121A, PW124B, 

PW127, PW127E, PW127F, PW127G, 

PW127H, and PW127M turboprop 

engines. This proposed AD was 

prompted by reports of fuel leaks at the 

interface between the fuel manifold and 

the fuel nozzle that resulted in engine 

fire. This proposed AD would require 

removal of the O-ring seal from the fuel 

manifold fitting. We are proposing this 

AD to prevent in-flight fuel leakage, 

which could lead to engine fire, damage 

to the engine, and damage to the 

airplane. 

DATES: We must receive comments on 

this proposed AD by May 20, 2014. 

ADDRESSES: You may send comments by 

any of the following methods: 

• 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. 

For service information identified in 

this AD, contact Pratt & Whitney Canada 

Corp., 1000 Marie-Victorin, Longueuil, 

Quebec, Canada, J4G 1A1; phone: 800– 

268–8000; fax: 450–647–2888; Web site: 

www.pwc.ca. You may view this service 

information at the FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA. For 

information on the availability of this 

material at the FAA, call 781–238–7125. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2013– 

1059; 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 

mandatory continuing airworthiness 

information (MCAI), the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Operations office (phone: 

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. 

FOR FURTHER INFORMATION CONTACT: 

Kevin Dickert, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7117; fax: 781–238– 

7199; email: kevin.dickert@faa.gov. 

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–2013–1059; Directorate Identifier 

2013–NE–36–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 based on 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, 

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). 

Discussion 

Transport Canada Civil Aviation, 

which is the aviation authority for 

Canada, has issued Canada AD CF– 

2013–29, dated October 4, 2013 

(referred to hereinafter as ‘‘the MCAI’’), 

to correct an unsafe condition for the 

specified products. The MCAI states: 

There have been reported incidences of 

fuel leaks at the interface between the 

flexible fuel manifold and the fuel nozzle. On 

occasion, these events resulted in an engine 

fire on PW100 series engine installations. 

The data indicates that nearly all of the 

subject manifold fuel leaks were caused by 

inadequate B-nut torque application during 

installation, after maintenance work was 

performed on the fuel nozzle/manifold. 

Sealing of the fitting connections between 

the fuel manifolds and the fuel nozzle 

adapters is achieved through conical metalto-metal surface seating. An additional O-ring 

seal on the fitting was installed to arrest any 

fuel leak past the conical sealing surfaces. Inservice experience has indicated that leakage 

past the sealing surfaces, as a result of 

improper torquing during installation of the 

manifold, may not be immediately evident 

until the failure of the O-ring seal allows the 

fuel to leak into the nacelle area. 

Removal of the O-ring seal from the 

fuel manifold fitting is needed to 

prevent any fuel leak resulting from 

improper connection or torquing. We 

are issuing this AD to prevent in-flight 

fuel leakage, which could lead to engine 

fire, damage to the engine, and damage 

to the airplane. You may examine the 

MCAI in the AD docket on the Internet 

at http://www.regulations.gov by 

searching for and locating it in Docket 

No. FAA–2013–1059. 

Relevant Service Information 

P&WC has issued Service Bulletin No. 

PW100–72–21803, Revision No. 4, dated 

February 8, 2012. The actions described 

in this service information are intended 

to correct the unsafe condition 

identified in the MCAI. 

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15708 Federal Register / Vol. 79, No. 55 / Friday, March 21, 2014 / Proposed Rules 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of Canada and is 

approved for operation in the United 

States. Pursuant to our bilateral 

agreement with Canada, they have 

notified us of the unsafe condition 

described in the MCAI and service 

information referenced above. We are 

proposing this AD because we evaluated 

all information provided by Canada and 

determined the unsafe condition exists 

and is likely to exist or develop on other 

products of the same type design. This 

proposed AD would require removal of 

the O-ring seal from the fuel manifold 

fitting to prevent in-flight fuel leakage 

resulting from improper connection or 

torquing, thus preventing engine fire, 

damage to the engine, and damage to the 

airplane. 

Costs of Compliance 

We estimate that this proposed AD 

would affect about 150 engines installed 

on U.S. airplanes. We also estimate that 

it would take about 2.5 hours per engine 

to perform the inspection or 

replacement required by this proposed 

AD. The average labor rate is $85 per 

hour. No parts are required. Based on 

these figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$31,875. 

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 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 this proposed regulation: 

(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), 

(3) Will not affect intrastate aviation 

in Alaska to the extent that it justifies 

making a regulatory distinction, and 

(4) 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 regulatory evaluation 

of the estimated costs to comply with 

this proposed AD and placed it in the 

AD docket. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA 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. Amend § 39.13 by adding the 

following new airworthiness directive 

(AD): 

Pratt & Whitney Canada Corp.: Docket No. 

FAA–2013–1059; Directorate Identifier 

2013–NE–36–AD. 

(a) Comments Due Date 

We must receive comments by May 20, 

2014. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Pratt & Whitney Canada 

Corp. (P&WC) PW120, PW121, and PW121A 

turboprop engines with Post SB21610 

configuration; PW124B, PW127, PW127E, 

PW127F, and PW127H turboprop engines 

with either Post SB21607 or Post SB21705 

configuration, or both; and PW127G and 

PW127M turboprop engines. 

(d) Reason 

This AD was prompted by reports of fuel 

leaks at the interface between the fuel 

manifold and the fuel nozzle that resulted in 

engine fire. We are issuing this AD to prevent 

in-flight fuel leakage, which could lead to 

engine fire, damage to the engine, and 

damage to the airplane. 

(e) Actions and Compliance 

Unless already done, during the next 

opportunity when the affected subassembly 

is accessible, but no later than 18 months 

after the effective date of this AD, remove the 

O-ring seal from the fuel manifold fitting. 

(f) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Engine Certification Office, 

FAA, may approve AMOCs to this AD. Use 

the procedures found in 14 CFR 39.19 to 

make your request. 

(g) Related Information 

(1) For more information about this AD, 

contact Kevin Dickert, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7117; fax: 781–238–7199; 

email: kevin.dickert@faa.gov. 

(2) Refer to MCAI Transport Canada AD 

CF–2013–29, dated October 4, 2013, for 

related information. You may examine the 

MCAI in the AD docket on the Internet at 

http://www.regulations.gov by searching for 

and locating it in Docket No. FAA–2013– 

1059. 

(3) P&WC Service Bulletin PW100–72– 

21803, Revision No. 4, dated February 8, 

2012, pertains to the subject of this AD and 

can be obtained from Pratt & Whitney 

Canada, using the contact information in 

paragraph (g)(4) of this AD. 

(4) For service information identified in 

this AD, contact Pratt & Whitney Canada 

Corp., 1000 Marie-Victorin Blvd., Longueuil, 

Quebec, Canada, J4G 1A1; phone: 800–268– 

8000; fax: 450–647–2888; Web site: 

www.pwc.ca. 

(5) You may view this service information 

at the FAA, Engine & Propeller Directorate, 

12 New England Executive Park, Burlington, 

MA. For information on the availability of 

this material at the FAA, call 781–238–7125. 

Issued in Burlington, Massachusetts, on 

March 13, 2014. 

Colleen M. D’Alessandro, 

Assistant Directorate Manager, Engine & 

Propeller Directorate, Aircraft Certification 

Service. 

[FR Doc. 2014–06163 Filed 3–20–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF ENERGY 

Federal Energy Regulatory 

Commission 

18 CFR Parts 2 and 35 

[Docket No. PL14–1–000] 

Payment of Dividends From Funds 

Included in Capital Accounts 

AGENCY: Federal Energy Regulatory 

Commission. 

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