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

61303 

Vol. 77, No. 195 

Tuesday, October 9, 2012 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0940; Directorate 

Identifier 2012–NE–26–AD] 

RIN 2120–AA64 

Airworthiness Directives; Turbomeca 

S.A. Turboshaft Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for 

Turbomeca S.A. Arriel 2D turboshaft 

engines. This proposed AD was 

prompted by a low fuel pressure event 

caused by a deterioration and a loss of 

the low-pressure drive function within 

the hydro-mechanical metering unit 

(HMU). This proposed AD would 

require replacing the HMU at a reduced 

life. We are proposing this AD to 

prevent an uncommanded in-flight 

shutdown of the engine, and possible 

loss of the helicopter. 

DATES: We must receive comments on 

this proposed AD by December 10, 

2012. 

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 Turbomeca, 40220 

Tarnos, France; phone: 33 (0)5 59 74 40 

00; telex: 570 042; fax: 33 (0)5 59 74 45 

15. You may review copies of the 

referenced 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; 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 (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: 

Frederick Zink, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

email: frederick.zink@faa.gov; phone: 

781–238–7779; fax: 781–238–7199. 

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–2012–0940; Directorate Identifier 

2012–NE–26–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 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA AD 2012– 

0141, dated July 31, 2012 (referred to 

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

unsafe condition for the specified 

products. The MCAI states: 

During an Arriel 2D endurance test, the 

illumination of the low fuel pressure warning 

light was observed. The investigation of the 

high pressure/low pressure (HP/LP) pump 

assembly within the hydro-mechanical 

metering unit (HMU), removed following this 

occurrence, revealed a deterioration and a 

loss of the LP pump drive function. 

This condition, if not detected and 

corrected, could lead to an uncommanded 

engine in-flight shut down. 

We are issuing this proposed AD to 

prevent an uncommanded in-flight 

shutdown of the engine, and possible 

loss of the helicopter. You may obtain 

further information by examining the 

MCAI in the AD docket. 

Relevant Service Information 

Turbomeca S.A. has issued Alert 

Mandatory Service Bulletin No. A292 73 

2847, Version A, dated May 29, 2012. 

The actions described in this service 

information are intended to correct the 

unsafe condition identified in the 

MCAI. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of France and is 

approved for operation in the United 

States. Pursuant to our bilateral 

agreement with the European 

Community, EASA has notified us of 

the unsafe condition described in the 

MCAI referenced above. We are 

proposing this AD because we evaluated 

all information provided by EASA 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 

replacing the HMU before the HMU 

exceeds 800 operating hours since new; 

or within 800 operating hours since last 

replacement of the low-pressure pump 

spindle wheel assembly, high-pressure 


wreier-aviles on DSK5TPTVN1PROD with PROPOSALS
61304 Federal Register / Vol. 77, No. 195 / Tuesday, October 9, 2012 / Proposed Rules 

pump complete sleeve, bearings/pinions 

(matched assembly), and sleeve 

assembly. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 27 engines installed on 

helicopters of U.S. registry. We also 

estimate that it would take about 0.7 

work-hour per engine to comply with 

this proposed AD. The average labor 

rate is $85 per work-hour. Required 

parts would cost about $14,400 per 

engine. Based on these figures, we 

estimate the cost of the proposed AD on 

U.S. operators to be $390,407. 

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); 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 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. The FAA amends § 39.13 by adding 

the following new AD: 

Turbomeca S.A.: Docket No. FAA–2012– 

0940; Directorate Identifier 2012–NE– 

26–AD. 

(a) Comments Due Date 

We must receive comments by December 

10, 2012. 

(b) Affected Airworthiness Directives (ADs) 

None. 

(c) Applicability 

This AD applies to all Turbomeca S.A. 

Arriel 2D turboshaft engines. 

(d) Reason 

This AD was prompted by a low fuel 

pressure event caused by a deterioration and 

a loss of the low-pressure drive function 

within the hydro-mechanical metering unit 

(HMU). We are issuing this AD to prevent an 

uncommanded in-flight shutdown of the 

engine, and possible loss of the helicopter. 

(e) Actions and Compliance 

Unless already done, replace the HMU 

with an HMU eligible for installation: 

(1) Before the HMU exceeds 800 operating 

hours since new; or 

(2) Within 800 operating hours since last 

replacement of the low-pressure pump 

spindle wheel assembly, high-pressure pump 

complete sleeve, bearings/pinions (matched 

assembly), and sleeve assembly. 

(f) Installation Prohibition 

After the effective date of this AD, do not 

install any HMU onto any engine, or install 

any engine onto any helicopter, unless in 

compliance with the requirements of 

paragraph (e) of this AD. 

(g) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Engine Certification Office, 

may approve AMOCs for this AD. Use the 

procedures found in 14 CFR 39.19 to make 

your request. 

(h) Related Information 

(1) For more information about this AD, 

contact Frederick Zink, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

email: frederick.zink@faa.gov; phone: 781– 

238–7779; fax: 781–238–7199. 

(2) Refer to European Aviation Safety 

Agency AD No. 2012–0141, dated July 31, 

2012, and Turbomeca S.A. Alert Mandatory 

Service Bulletin No. A292 73 2847, Version 

A, dated May 29, 2012, for related 

information. 

(3) For service information identified in 

this AD, contact Turbomeca, 40220 Tarnos, 

France; phone: 33 (0)5 59 74 40 00; telex: 570 

042; fax: 33 (0)5 59 74 45 15. You may review 

copies of the referenced 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. 

(i) Material Incorporated by Reference 

None. 

Issued in Burlington, Massachusetts, on 

October 1, 2012. 

Robert J. Ganley, 

Acting Manager, Engine & Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–24721 Filed 10–5–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2012–0323; Airspace 

Docket No. 12–AAL–4] 

Proposed Amendment of Class E 

Airspace; Savoonga, AK 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

modify Class E airspace at Savoonga 

Airport, AK, to accommodate aircraft 

using new Area Navigation (RNAV) 

Global Positioning System (GPS) 

standard instrument approach 

procedures at Savoonga Airport. The 

FAA is proposing this action to enhance 

the safety and management of aircraft 

operations at the airport. 

DATES: Comments must be received on 

or before November 23, 2012. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC 20590; telephone (202) 

366–9826. You must identify FAA 

Docket No. FAA–2012–0322; Airspace 


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