39624 Federal Register / Vol. 77, No. 129 / Thursday, July 5, 2012 / Rules and Regulations 

DATES: This amendment becomes 

effective July 5, 2012. 

FOR FURTHER INFORMATION CONTACT: For 

technical questions concerning this 

action, contact Dorina Mihail, Federal 

Aviation Administration, Engine and 

Propeller Directorate, Standards Staff, 

ANE–110, 12 New England Executive 

Park, Burlington, Massachusetts 01803– 

5229; (781) 238–7153; facsimile: (781) 

238–7199; email: 

dorina.mihail@faa.gov. 

For legal questions concerning this 

action, contact Vincent Bennett, Federal 

Aviation Administration, Office of 

Regional Counsel, ANE–7, 12 New 

England Executive Park, Burlington, 

Massachusetts 01803–5299; telephone 

(781) 238–7044; fax (781) 238–7055; 

email vincent.bennett@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The airworthiness standards in 

§ 33.83 refer to engine surveys, vibration 

surveys, vibration test, or simply 

surveys with the intent to prescribe 

engine vibration surveys conducted by 

the means of an engine test. This intent 

has been applied since the regulation 

was first issued in 1964 and is common 

certification practice. However, FAA 

continues to receive requests for 

clarification in regard to the ‘‘engine 

surveys’’ required in the second 

sentence of § 33.83(a). The requested 

clarification was whether an 

‘‘appropriate combination of experience, 

analysis, and component test’’ is 

acceptable in lieu of an engine test. We 

are revising § 33.83(a) to clarify that the 

applicants must conduct the engine 

surveys by the means of an engine test, 

and that the applicants may use an 

‘‘appropriate combination of experience, 

analysis, and component test’’ in 

support of conducting the engine test. 

This clarification is not substantive in 

nature, and will not impose any 

additional burden on any person. 

List of Subjects in 14 CFR Part 33 

Aircraft, Aviation safety. 

The Amendment 

In consideration of the following, the 

Federal Aviation Administration 

amends part 33 of Title 14, Code of 

Federal Regulations, as follows: 

PART 33—AIRWORTHINESS 

STANDARDS: AIRCRAFT ENGINES 

■ 1. The authority citation for part 33 

continues to read as follows: 

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

44702, 44704. 

■ 2. Revise § 33.83(a) to read as follows: 

§ 33.83 Vibration test. 

(a) Each engine must undergo 

vibration surveys to establish that the 

vibration characteristics of those 

components that may be subject to 

mechanically or aerodynamically 

induced vibratory excitations are 

acceptable throughout the declared 

flight envelope. Compliance with this 

section must be demonstrated by engine 

test, and must address, as a minimum, 

blades, vanes, rotor discs, spacers, and 

rotor shafts. The conduct of the engine 

test should be based on an appropriate 

combination of experience, analysis, 

and component test. 

* * * * * 

Issued in Washington, DC, on June 7, 2012. 

Lirio Liu, 

Acting Director, Office of Rulemaking. 

[FR Doc. 2012–16290 Filed 7–3–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0416; Directorate 

Identifier 2012–NE–13–AD; Amendment 39– 

17078; AD 2012–11–14] 

RIN 2120–AA64 

Airworthiness Directives; Pratt & 

Whitney Canada Turboprop Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all Pratt 

& Whitney Canada (P&WC) PW118, 

PW118A, PW118B, PW119B, PW119C, 

PW120, PW120A, PW121, PW121A, 

PW123, PW123B, PW123C, PW123D, 

PW123E, PW123AF, PW124B, PW125B, 

PW126A, PW127, PW127E, PW127F, 

PW127G, and PW127M turboprop 

engines. This AD requires initial and 

repetitive inspections of certain serial 

numbers (S/Ns) of propeller shafts for 

cracks and removal from service if 

found cracked. This AD was prompted 

by reports of two propeller shafts found 

cracked at time of inspection during 

maintenance. We are issuing this AD to 

detect propeller shaft cracks, which 

could cause failure of the shaft, 

propeller release, and loss of control of 

the airplane. 

DATES: This AD becomes effective July 

20, 2012. 

We must receive comments on this 

AD by August 20, 2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of P&WC Alert Service Bulletin (ASB) 

No. PW100–72–A21813, Revision 3, 

dated March 21, 2012, ASB No. PW100– 

72–A21802, Revision 4, dated March 16, 

2012, and Special Instruction P&WC 22– 

2012R2, dated April 4, 2012, listed in 

the AD as of July 20, 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: 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 review copies of 

the referenced service information at the 

FAA, Engine & Propeller Directorate, 

12 New England Executive Park, 

Burlington, MA 01803. 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 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: 

Discussion 

Transport Canada, which is the 

aviation authority for Canada, has 

issued Canada AD CF–2012–12, dated 

March 26, 2012 (referred to after this as 

‘‘the MCAI’’), to correct an unsafe 


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Federal Register / Vol. 77, No. 129 / Thursday, July 5, 2012 / Rules and Regulations 39625 

condition for the specified products. 

The MCAI states: 

Two PW100 propeller shafts were 

discovered with cracks during 

troubleshooting for oil leakage in the 

propeller shaft area. The subsequent 

investigation has determined that the crack 

initiation resulted from a plating repair not 

performed in accordance with the current 

published Pratt & Whitney Canada (P&WC) 

Cleaning Inspection and Repair (CIR) 

Manual. Both propeller shafts that were 

found with a circumferential crack had been 

processed consecutively for nickel plating 

repair at the same repair facility. 

P&WC had initially identified 24 high-risk 

propeller shafts that were repaired by the 

same facility and accordingly, issued Service 

Bulletin (SB) No. A21802 in May 2011 to 

remove those 24 units from service. Nineteen 

of those units were removed and the 

remaining 5 are confirmed to not be installed 

on any serviceable aircraft. Further 

investigation by P&WC indicated that the 

lack of full conformity with the CIR 

procedure may not have been limited to one 

vendor only. As a result P&WC identified a 

total of 203 (24 + 179) suspect units that may 

not have been repaired in accordance with 

CIR procedures. 

This AD addresses the entire 203 article 

population. P&WC has issued service 

information to address all of the affected 

propeller shafts, since the first two 

cracked propeller shafts were 

discovered. 

You may obtain further information 

by examining the MCAI in the AD 

docket. 

Relevant Service Information 

P&WC has issued ASB No. PW100– 

72–A21813, Revision 3, dated March 21, 

2012 and ASB No. PW100–72–A21802, 

Revision 4, dated March 16, 2012. These 

ASBs provide instructions on replacing 

the affected propeller shafts that are 

identified by S/N in the ASBs. P&WC 

has also issued Special Instruction 

P&WC 22–2012R2, dated April 4, 2012, 

which provides instructions on 

performing ultrasonic inspections to the 

affected propeller shafts. The actions 

described in that service information are 

intended to correct the unsafe condition 

identified in the MCAI. 

FAA’s Determination and Requirements 

of This 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 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 AD requires within 30 days after 

the effective date of the AD, removing 

from service propeller shafts with a 

S/N listed in Table 1 of P&WC ASB No. 

PW100–72–A21802, Revision 4, dated 

March 16, 2012. These propeller shafts 

are the highest-risk propeller shafts. 

This AD also requires within 200 

engine flight hours (EFH) or 40 days, 

whichever occurs first after the effective 

date of this AD, performing an initial, 

and repetitive visual inspections or 

ultrasonic inspections of propeller 

shafts with a S/N listed in Table 1 or 

Table 2 of P&WC ASB No. PW100–72– 

A21813, Revision 3, dated March 21, 

2012. These propeller shafts are not as 

high a risk. 

FAA’s Determination of the Effective 

Date 

An unsafe condition exists that 

requires the immediate adoption of this 

AD. The FAA has found that the risk to 

the flying public justifies waiving notice 

and comment prior to adoption of this 

rule because the compliance 

requirements are within 30 days or less, 

depending on airplane usage. Therefore, 

we determined that notice and 

opportunity for public comment before 

issuing this AD are impracticable and 

that good cause exists for making this 

amendment effective in fewer than 30 

days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not precede it by notice and 

opportunity for public comment. We 

invite you to send any written relevant 

data, views, or arguments about this AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include ‘‘Docket No. FAA–2012–0416; 

Directorate Identifier 2012–NE–13–AD’’ 

at the beginning of your comments. We 

specifically invite comments on the 

overall regulatory, economic, 

environmental, and energy aspects of 

this AD. We will consider all comments 

received by the closing date and may 

amend this 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 with FAA 

personnel concerning this 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). 

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. 

Differences Between the MCAI and This 

AD 

The PW126, PW127B, PW127H, and 

PW127J model engines listed in the 

MCAI are not included in this AD 

because they are not subject to FAA 

oversight. 

The MCAI requires retirement of all 

subject propeller shafts within 12 

months. This AD does not. However, 

that requirement may be added at a later 

date as required terminating action. 

Regulatory Findings 

We 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 this 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. 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 AD and placed it in the AD docket. 


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39626 Federal Register / Vol. 77, No. 129 / Thursday, July 5, 2012 / Rules and Regulations 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA 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 AD: 

2012–11–14 Pratt & Whitney Canada: 

Amendment 39–17078; Docket No. 

FAA–2012–0416; Directorate Identifier 

2012–NE–13–AD. 

(a) Effective Date 

This airworthiness directive (AD) becomes 

effective July 20, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Pratt & Whitney 

Canada (P&WC) PW118, PW118A, PW118B, 

PW119B, PW119C, PW120, PW120A, PW121, 

PW121A, PW123, PW123B, PW123C, 

PW123D, PW123E, PW123AF, PW124B, 

PW125B, PW126A, PW127, PW127E, 

PW127F, PW127G, and PW127M turboprop 

engines, with the serial number (S/N) 

propeller shafts listed in P&WC Alert Service 

Bulletin (ASB) No. PW100–72–A21813, 

Revision 3, dated March 21, 2012, and ASB 

No. PW100–72–A21802, Revision 4, dated 

March 16, 2012. 

(d) Reason 

This AD was prompted by reports of two 

propeller shafts found cracked at time of 

inspection during maintenance. We are 

issuing this AD to detect propeller shaft 

cracks, which could cause failure of the shaft, 

propeller release, and loss of control of the 

airplane. 

(e) Actions and Compliance 

Unless already done, do the following 

actions. 

(f) Inspecting and Removing Propeller Shafts 

(1) Within 30 days after the effective date 

of this AD, remove from service propeller 

shafts with an S/N listed in Table 1 of P&WC 

ASB No. PW100–72–A21802, Revision 4, 

dated March 16, 2012. 

(2) For propeller shafts with a S/N listed 

in Table 1 or Table 2 of P&WC ASB No. 

PW100–72–A21813, Revision 3, dated March 

21, 2012: 

(i) Within 200 engine flight hours (EFH) or 

40 days, whichever occurs first after the 

effective date of this AD, perform either an 

initial visual inspection or an initial 

ultrasonic inspection (UI) for cracks, in 

accordance with paragraphs 3.C.(1) through 

3.C.(1)(a), and 3.C.(2) of P&WC ASB No. 

PW100–72–A21813, Revision 3, dated March 

21, 2012, and Section 9 of P&WC Special 

Instruction (SI) P&WC 22–2012R2, dated 

April 4, 2012. 

(ii) If the visual inspection was performed, 

repeat the visual inspection within 50 EFH 

after the initial inspection, and thereafter 

every 10 EFH, until the propeller shaft is 

removed from service. 

(iii) If the UI was performed, repeat the UI 

at intervals not to exceed 1,000 EFH, until 

the propeller shaft is removed from service. 

(3) If a crack is found during any of the 

inspections required by this AD, remove the 

propeller shaft from service before the next 

flight. 

(g) Installation Prohibition 

After the effective date of this AD, do not 

install any propeller shaft S/Ns listed in 

Table 1 of P&WC ASB No. PW100–72– 

A21802, Revision 4, dated March 16, 2012, 

into any engine. 

(h) 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. 

(i) Special Flight Permit 

No special flight permits will be issued for 

this AD. 

(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. 

(2) Refer to Transport Canada AD CF– 

2012–12, dated March 26, 2012, for related 

information. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the following service information 

under 5 U.S.C. 552(a) and 1 CFR part 51. 

(2) You must use the following service 

information to do the actions required by this 

AD, unless the AD specifies otherwise. 

(i) Pratt & Whitney Canada Alert Service 

Bulletin No. PW100–72–A21813, Revision 3, 

dated March 21, 2012. 

(ii) Pratt & Whitney Canada Alert Service 

Bulletin No. PW100–72–A21802, Revision 4, 

dated March 16, 2012. 

(iii) Pratt & Whitney Canada Special 

Instruction P&WC 22–2012R2, dated April 4, 

2012. 

(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. 

(4) You may review copies of the 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. 

(5) You may also review copies of the 

service information incorporated by reference 

at the National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http:// 

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Burlington, Massachusetts, on 

May 31, 2012. 

Peter A. White, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–16257 Filed 7–3–12; 8:45 am] 

BILLING CODE 4910–13–P 

COMMODITY FUTURES TRADING 

COMMISSION 

17 CFR Part 1 

RIN 3038–AD06 

SECURITIES AND EXCHANGE 

COMMISSION 

17 CFR Part 240 

[Release No. 34–66868A; File No. S7–39– 

10] 

RIN 3235–AK65 

Further Definition of ‘‘Swap Dealer,’’ 

‘‘Security-Based Swap Dealer,’’ ‘‘Major 

Swap Participant,’’ ‘‘Major SecurityBased Swap Participant’’ and ‘‘Eligible 

Contract Participant’’; Correction 

AGENCY: Commodity Futures Trading 

Commission; Securities and Exchange 

Commission. 

ACTION: Joint final rule; joint interim 

final rule; interpretations; correction. 

SUMMARY: The Commodity Futures 

Trading Commission and Securities and 

Exchange Commission are correcting 

final rules that appeared in the Federal 

Register of 

May 23, 2012 (77 FR 30596). The rules 

further defined the terms ‘‘swap dealer,’’ 

‘‘security-based swap dealer,’’ ‘‘major 

swap participant,’’ ‘‘major securitybased swap participant’’ and ‘‘eligible 

contract participant.’’ Only the rules of 

the Commodity Futures Trading 

Commission are subject to this 

correction. This document also corrects 

a footnote in the Supplementary 

Information accompanying the final 

rules. 

DATES: Effective July 23, 2012. 

FOR FURTHER INFORMATION CONTACT: 

CFTC: Jeffrey P. Burns, Assistant 

General Counsel, at 202–418–5101, 

jburns@cftc.gov, Mark Fajfar, Assistant 


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