65142 Federal Register / Vol. 77, No. 207 / Thursday, October 25, 2012 / Proposed Rules 

DATES: Send your comments to reach us 

on or before November 26, 2012. 

FOR FURTHER INFORMATION CONTACT: 

Kevin Tuininga, Trial Attorney, Office 

of General Counsel, National Credit 

Union Administration, 1775 Duke 

Street, Alexandria, Virginia 22314–3428 

or telephone: (703) 518–6543. 

SUPPLEMENTARY INFORMATION: The end of 

the comment period for the proposed 

rule was previously October 26, 2012. 

The Board has extended the comment 

period to November 26, 2012. 

By the National Credit Union 

Administration Board on October 19, 2012. 

Mary F. Rupp, 

Secretary of the Board. 

[FR Doc. 2012–26313 Filed 10–24–12; 8:45 am] 

BILLING CODE 7535–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1005; Directorate 

Identifier 2012–NE–27–AD] 

RIN 2120–AA64 

Airworthiness Directives; Pratt & 

Whitney Canada Corp 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 certain 

Pratt & Whitney Canada Corp. (P&WC) 

PT6C–67C turboshaft engines. This 

proposed AD was prompted by five 

reported incidents of second stage 

power turbine (PT) disk damage. This 

proposed AD would require initial and 

repetitive borescope inspections to 

verify the presence of a retaining ring 

securing the PT baffle located near the 

second stage PT disk. If the engine fails 

the inspection, this proposed AD would 

also require removing the engine from 

service before further flight. We are 

proposing this AD to prevent damage to 

the PT disk which, if undetected, could 

cause uncontained PT disk failure and 

loss of control of the helicopter. 

DATES: We must receive comments on 

this proposed AD by December 24, 

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 proposed AD, contact Pratt & 

Whitney Canada Corp., 1000 MarieVictorin, Longueuil, Quebec, Canada, 

J4G 1A1; phone 800–268–8000; fax 450– 

647–2888; Web site: www.pwc.ca. 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: 

James Lawrence, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

email: james.lawrence@faa.gov; phone: 

781–238–7176; 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–2012–1005; Directorate Identifier 

2012–NE–27–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 Transport Canada, which is the 

aviation authority for Canada, has 

issued Canada AD CF–2012–24, dated 

August 2, 2012 (referred to after this as 

‘‘the MCAI’’), to correct an unsafe 

condition for the specified products. 

The MCAI states: 

There have been 5 reported incidents of 

second stage Power Turbine (PT) disk 

damage caused by the PT baffle moving and 

contacting the downstream side of the second 

stage PT disk. In two of these incidents, the 

PT section of the engine failed to rotate (on 

ground) as a result of baffle interference. 

An investigation has determined that the 

root cause for the PT baffle displacement and 

the resultant PT disk damage was due to the 

failure of the retaining ring that holds the PT 

baffle in its intended position. 

This proposed AD would only apply to 

P&WC PT6C–67C turboshaft engines 

that have not had P&WC Service 

Bulletin No. PT6C–72–41056 

incorporated. You may obtain further 

information by examining the MCAI in 

the AD docket. 

Relevant Service Information 

P&WC has issued Alert Service 

Bulletin (SB) No. PT6C–72–A41060, 

Revision 2, dated February 10, 2012. 

P&WC has also issued SB No. PT6C–72– 

41056, Revision 4, dated February 13, 

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 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 

issuing this proposed 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. 


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Federal Register / Vol. 77, No. 207 / Thursday, October 25, 2012 / Proposed Rules 65143 

This proposed AD would require 

initial and repetitive borescope 

inspections to verify the presence of a 

retaining ring securing the PT baffle 

located near the second stage PT disk. 

If the engine fails the inspection, this 

proposed AD would also require 

removing the engine from service before 

further flight. 

Differences Between This Proposed AD 

and the MCAI 

This proposed AD would not require 

engine modification at the next 

scheduled overhaul, as the MCAI 

requires. This proposed AD would 

require different inspection intervals 

from the MCAI. We changed the 

inspection intervals to ensure that our 

proposed AD is clear for U.S. operators. 

Costs of Compliance 

We estimate that this proposed AD 

would affect about 220 engines installed 

on helicopters of U.S. registry. We also 

estimate that it would take about six 

hours per engine to perform one 

inspection required by this proposed 

AD. The average labor rate is $85 per 

hour. We anticipate that two engines 

would fail the initial inspection. 

Required parts would cost about 

$224,636 per engine. Based on these 

figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$561,472. Our cost estimate is exclusive 

of possible warranty coverage. 

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: 

Pratt & Whitney Canada Corp. (formerly 

Pratt & Whitney Canada Inc.): Docket 

No. FAA–2012–1005; Directorate 

Identifier 2012–NE–27–AD. 

(a) Comments Due Date 

We must receive comments by December 

24, 2012. 

(b) Affected Airworthiness Directives (ADs) 

None. 

(c) Applicability 

This AD applies to Pratt & Whitney Canada 

Corp. (P&WC) PT6C–67C turboshaft engines 

that have not had P&WC Service Bulletin No. 

PT6C–72–41056 incorporated. 

(d) Reason 

This AD was prompted by five reported 

incidents of second stage power turbine (PT) 

disk damage. We are issuing this AD to 

prevent damage to the PT disk which, if 

undetected, could cause uncontained PT disk 

failure and loss of control of the helicopter. 

(e) Actions and Compliance 

Unless already done, do the following 

actions. 

(f) Borescope Inspections 

(1) Borescope-inspect to verify the 

presence of a retaining ring securing the PT 

baffle located near the second stage PT disk, 

as follows: 

(i) For engines with 2,200 PT cycles or 

more on the effective date of this AD, inspect 

within 100 operating hours or 150 PT cycles, 

whichever occurs first. 

(ii) For engines with more than 1,400 PT 

cycles but fewer than 2,200 PT cycles on the 

effective date of this AD, inspect within 250 

operating hours, 350 PT cycles, or before 

exceeding 2,350 PT cycles, whichever occurs 

first. 

(iii) For engines with 1,400 PT cycles or 

fewer on the effective date of this AD, inspect 

within 500 operating hours, 750 PT cycles, or 

before exceeding 1,750 PT cycles, whichever 

occurs first. 

(2) Thereafter, repetitively borescopeinspect to verify the presence of the retaining 

ring securing the PT baffle located near the 

second stage PT disk, on or before an 

additional 600 flight hours or 900 PT cycles, 

whichever occurs first. 

(3) Use P&WC Alert SB No. PT6C–72– 

A41060, Revision 2, dated February 10, 2012, 

paragraphs 3.A.(1) through 3.A.(6) to do the 

borescope inspections required by this AD. 

(4) If the retaining ring is missing or the PT 

baffle is out of position; then remove the 

engine from service before further flight. 

(g) Optional Terminating Action 

Performing the engine improvement 

modifications in P&WC SB No. PT6C–72– 

41056, Revision 4, dated February 13, 2012, 

paragraphs 3.A. through 3.C.(12) and 3.E.(1) 

through 3.E.(15), is an optional terminating 

action to the repetitive inspections required 

by this AD. 

(h) Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

(1) If you performed the initial borescope 

inspection before the effective date of this AD 

using P&WC Special Instruction No. 45– 

2011R2, dated July 27, 2011, or P&WC Alert 

SB No. PT6C–72–A41060, dated August 12, 

2011, or Revision 1, dated September 29, 

2011, you met the requirements of paragraph 

(f)(1) of this AD. 

(2) If you performed the engine 

modification in P&WC SB No. PT6C–72– 

41056, dated April 1, 2011, or Revision 1, 

dated June 17, 2011, or Revision 2, dated 

October 6, 2011, or Rrevision 3, dated 

February 3, 2012, you met the requirements 

of this AD and further action is not required. 

(i) 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. 

(j) Related Information 

(1) For more information about this AD, 

contact James Lawrence, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

email: james.lawrence@faa.gov; phone: 781– 

238–7176; fax: 781–238–7199. 


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65144 Federal Register / Vol. 77, No. 207 / Thursday, October 25, 2012 / Proposed Rules 

(2) Refer to Transport Canada AD CF– 

2012–24, dated August 2, 2012, for related 

information. 

(3) 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 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. 

Issued in Burlington, Massachusetts, on 

October 16, 2012. 

Carlos Pestana, 

Acting Manager, Engine & Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–26277 Filed 10–24–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1108; Directorate 

Identifier 2011–NM–283–AD] 

RIN 2120–AA64 

Airworthiness Directives; Embraer S.A. 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for certain 

Embraer S.A. Model ERJ 170 and ERJ 

190 airplanes. This proposed AD was 

prompted by reports of failures of the 

emergency slide on the forward 

passenger door, which prevented the 

door from opening. This proposed AD 

would require repetitive re-packing of 

certain forward door escape slides. We 

are proposing this AD to prevent failure 

of the emergency slide, preventing the 

forward passenger door from opening, 

which could result in impeded 

emergency evacuation and possible 

subsequent injury to passengers and 

flightcrew. 

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. 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, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For EMBRAER service information 

identified in this proposed AD, contact 

Embraer S.A., Technical Publications 

Section (PC 060), Av. Brigadeiro Faria 

Lima, 2170—Putim—12227–901 Sa ̃o 

Jose dos Campos—SP—BRASIL; 

telephone +55 12 3927–5852 or +55 12 

3309–0732; fax +55 12 3927–7546; 

email distrib@embraer.com.br; Internet 

http://www.flyembraer.com. For 

Goodrich service information identified 

in this proposed AD, contact Goodrich 

Corporation, Aircraft Interior Products, 

ATTN: Technical Publications, 3414 

South Fifth Street, Phoenix, Arizona 

85040; telephone 602–243–2270; email 

george.yribarren@goodrich.com; Internet 

http://www.goodrich.com/TechPubs. 

You may review copies of the 

referenced service information at the 

FAA, Transport Airplane Directorate, 

1601 Lind Avenue SW., Renton, WA. 

For information on the availability of 

this material at the FAA, call 425–227– 

1221. 

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 in 

the ADDRESSES section. Comments will 

be available in the AD docket shortly 

after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Cindy Ashforth, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; telephone (425) 227–2768; 

fax (425) 227–1149. 

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–2012–1108; Directorate Identifier 

2011–NM–283–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 we receive 

about this proposed AD. 

Discussion 

The Ageˆncia Nacional de Aviac ̧a ̃o 

Civil (ANAC), which is the aviation 

authority for Brazil, has issued Brazilian 

Airworthiness Directives 2011–12–01 

and 2011–12–02, both effective 

December 27, 2011 (referred to after this 

as ‘‘the MCAI’’), to correct an unsafe 

condition for the specified products. 

MCAI Brazilian Airworthiness Directive 

2011–12–01 states: 

During operational checks of escape slide 

P/N 4A4030–5, some operators have reported 

failure in the escape slide preventing the 

forward passenger door opening. This 

[Brazilian] AD is being issued to prevent 

failure of this system which could impede an 

emergency evacuation and increase the 

chance of injury to passengers and flight 

crew. 

* * * * * 

MCAI Brazilian Airworthiness Directive 

2011–12–02 states: 

During scheduled deployment tests of 

escape slide P/N 104003–2, some operators 

have reported failure in the escape slide 

preventing the forward passenger door 

opening. This [Brazilian] AD is being issued 

to prevent failure of this system which could 

impede an emergency evacuation and 

increase the chance of injury to passengers 

and flight crew. 

* * * * * 

The required action is repetitive repacking of certain forward door escape 

slides. You may obtain further 

information by examining the MCAI in 

the AD docket. 

Relevant Service Information 

Goodrich has issued Alert Service 

Bulletins 4A4030–25A402 and 104003– 

25A403, both dated June 30, 2011. 

Embraer S.A. has issued Section 1 of 

EMBRAER 170 Maintenance Review 

Board Report, MRB–1621, Revision 7, 

dated November 11, 2010; and Section 

1 of EMBRAER 190 Maintenance 

Review Board Report, MRB–1928, 

Revision 5, dated November 11, 2010. 

The actions described in this service 

information are intended to correct the 

unsafe condition identified in the 

MCAI. 


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