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contains regulatory documents having general

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are keyed to and codified in the Code of

Federal Regulations, which is published under

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REGISTER issue of each week.

Rules and Regulations Federal Register

76027 

Vol. 76, No. 234 

Tuesday, December 6, 2011 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0733; Directorate 

Identifier 2010–NE–36–AD; Amendment 39– 

16885; AD 2011–25–09] 

RIN 2120–AA64 

Airworthiness Directives; Pratt & 

Whitney Division (PW) PW4000 Series 

Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

PW4000 turbofan engines. This AD was 

prompted by an updated low-cycle 

fatigue (LCF) life analysis performed by 

PW. This AD requires removing certain 

part number (P/N) high-pressure turbine 

(HPT) stage 1 and HPT stage 2 airseals 

and HPT stage 1 airseal rings before 

their published life limit and establishes 

a new lower life limit for these parts. 

We are issuing this AD to prevent 

failure of these parts, which could lead 

to an uncontained engine failure and 

damage to the airplane. 

DATES: This AD is effective January 10, 

2012. 

ADDRESSES: For service information 

identified in this AD, contact Pratt & 

Whitney, 400 Main St., East Hartford, 

CT 06108; phone: (860) 565–1605. 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 

Management Facility 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 address for the 

Docket Office (phone: (800) 647–5527) 

is Document Management Facility, U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE., Washington, 

DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

James Gray, Aerospace Engineer, Engine 

Certification Office, FAA, 12 New 

England Executive Park; phone: (781) 

238–7742; fax: (781) 238–7199; email: 

james.e.gray@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM published in the Federal 

Register on July 14, 2011 (76 FR 41430). 

That NPRM proposed to require 

removing certain P/N HPT stage 1 and 

HPT stage 2 airseals and HPT stage 1 

airseal rings before their published life 

limit, and establishes a new lower life 

limit for these parts. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the proposal and the FAA’s 

response to each comment. 

Request To Publish Date When Chapter 

5 Will Be Revised 

One commenter, Lufthansa Technik 

AG (Lufthansa), requested that we note 

in the AD that Chapter 5 will be revised 

and indicate when it will occur. 

Lufthansa believes this knowledge will 

help optimize planning for removal of 

parts that will be close to their reduced 

life limits when Chapter 5 is revised. 

We do not agree. Although Chapter 5 

may be revised in the future, we do not 

know when. If Chapter 5 is revised in 

the future, we will publish an NPRM 

that will allow the public an 

opportunity to comment. We did not 

change the AD as a result of this 

comment. 

Request To Indicate How To Perform 

Pro-Rata Calculation 

One commenter, SR Technics, 

requested that the AD define how to 

perform the pro-rata calculation of the 

parts’ life limit after the effective date of 

the AD for parts that have been installed 

on engines with different thrust loads. 

We do not agree. Information on how 

to track part life for parts that have been 

installed on engines with different 

thrust loads can be found in the relevant 

engine manual. We did not change the 

AD as a result of this comment. 

Request for Industry Support Program 

One commenter, FedEx Express 

(FedEx), indicated that the proposed AD 

would affect 174 engines in its fleet and 

cost FedEx $8,149,290. FedEx requested 

that Pratt & Whitney, therefore, provide 

an industry support program to help 

alleviate this financial burden. 

We do not agree. We do not have the 

authority to require a design approval 

holder to offer such a program. We did 

not change the AD as a result of this 

comment. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

as proposed except for minor editorial 

changes to the Unsafe Condition 

paragraph made for clarification. 

We have determined that these minor 

changes: 

• Are consistent with the intent that 

was proposed in the NPRM (76 FR 

41430, July 14, 2011) for correcting the 

unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM (76 FR 41430, 

July 14, 2011). 

Costs of Compliance 

We estimate that this AD will affect 

869 engines installed on airplanes of 

U.S. registry. We also estimate that, 

because the removals will be performed 

at piece-part level, no additional workhours will be required. Prorated life for 

the HPT is about $46,835 per engine. 

Based on these figures, we estimate the 

total cost of this AD to U.S. operators is 

$40,699,615. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 


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76028 Federal Register / Vol. 76, No. 234 / Tuesday, December 6, 2011 / Rules and Regulations 

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 

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 that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Is not a ‘‘significant rule’’ under 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979), 

(3) Will not affect intrastate aviation 

in Alaska, 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. 

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 airworthiness 

directive (AD): 

2011–25–09 Pratt & Whitney Division: 

Amendment 39–16885; Docket No. 

FAA–2011–0733; Directorate Identifier 

2010–NE–36–AD. 

(a) Effective Date 

This AD is effective January 10, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to the following Pratt & 

Whitney Division (PW) turbofan engines, 

with high-pressure turbine (HPT) stage 1 

airseal, part number (P/N) 50L879; HPT stage 

2 airseal, P/N 53L030; or HPT stage 1 airseal 

ring, P/N 50L664, installed: 

(1) PW4000–100′′ Engines 

PW4000–100′′ engine models PW4164, 

PW4164C, PW4164C/B, PW4168, and 

PW4168A. 

(2) PW4000–94′′ Engines 

(i) PW4000–94′′ engine models PW4060, 

PW4060A, PW4060C, PW4062, PW4062A, 

PW4156A, PW4158, PW4160, PW4460, and 

PW4462 that have incorporated either 

Engineering Change Numbers EC92KK322G, 

H, I, J, and K, or one of the following PW 

Service Bulletins (SBs): PW4ENG 72–490, 

PW4ENG 72–504, PW4ENG 72–512, 

PW4ENG 72–572, PW4ENG 72–588, 

PW4ENG 73–150; as indicated with a (–3), 

(–3A), or (–3B) suffix on the engine data 

plate. 

(ii) PW4000–94′′ engine models PW4050, 

PW4052, PW4056, PW4152, PW4156, and 

PW4650 that have incorporated either 

Engineering Change Numbers EC92KK322G, 

H, I, J, and K, or one of the following PW SBs: 

PW SB PW4ENG 72–490, PW4ENG 72–504, 

PW4ENG 72–512, PW4ENG 72–572, 

PW4ENG 72–588, PW4ENG 73–150; as 

indicated with a (–3), (–3A), or (–3B) suffix 

on the engine data plate. 

(d) Unsafe Condition 

This AD was prompted by an updated lowcycle fatigue (LCF) life analysis performed by 

PW. We are issuing this AD to prevent failure 

of these parts, which could lead to an 

uncontained engine failure and damage to 

the airplane. 

(e) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(f) Removing From Service, the Stage 1 HPT 

Airseal, P/N 50L879 

Remove the stage 1 HPT airseal, P/N 

50L879, at the next piece-part exposure after 

the effective date of this AD or before 

accumulating the number of cycles listed in 

Table 1 of this AD, whichever occurs later. 

TABLE 1—REMOVAL OF STAGE 1 HPT AIRSEALS, P/N 50L879, BY CYCLES-SINCE-NEW (CSN) 

For engine model . . . 

Remove 

stage 1 HPT 

airseal by 

. . . 

(1) Listed in paragraph (c)(1) of the Applicability Section of this AD .................................................................................................... 12,600 CSN. 

(2) Listed in paragraph (c)(2)(i) of the Applicability Section of this AD ................................................................................................. 13,900 CSN. 

(3) Listed in paragraph (c)(2)(ii) of the Applicability Section of this AD ................................................................................................ 18,900 CSN. 

(g) Removing From Service, the Stage 2 HPT 

Airseal, P/N 53L030 

Remove the stage 2 HPT airseal, P/N 

53L030, at the next piece-part exposure after 

the effective date of this AD or before 

accumulating the number of cycles listed in 

Table 2 of this AD, whichever occurs later. 

TABLE 2—REMOVAL OF STAGE 2 HPT AIRSEALS, P/N 53L030, BY CSN 

For engine model . . . 

Remove 

stage 2 HPT 

airseal by 

. . . 

(1) Listed in paragraph (c)(1) of the Applicability Section of this AD .................................................................................................... 13,900 CSN. 


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Federal Register / Vol. 76, No. 234 / Tuesday, December 6, 2011 / Rules and Regulations 76029 

TABLE 2—REMOVAL OF STAGE 2 HPT AIRSEALS, P/N 53L030, BY CSN—Continued 

For engine model . . . 

Remove 

stage 2 HPT 

airseal by 

. . . 

(2) Listed in paragraph (c)(2)(i) of the Applicability Section of this AD ................................................................................................. 13,800 CSN. 

(3) Listed in paragraph (c)(2)(ii) of the Applicability Section of this AD ................................................................................................ 15,900 CSN. 

(h) Removing From Service, the Stage 1 HPT 

Airseal Ring, P/N 50L664 

Remove the stage 1 HPT airseal ring, P/N 

50L664, at the next piece-part exposure after 

the effective date of this AD or before 

accumulating the number of cycles listed in 

Table 3 of this AD, whichever occurs later. 

TABLE 3—REMOVAL OF STAGE 1 HPT AIRSEAL RING, P/N 50L664, BY CSN 

For engine model . . . 

Remove 

stage 1 HPT 

airseal ring 

by * * * 

(1) Listed in paragraph (c)(2)(i) of the Applicability Section of this AD ................................................................................................. 14,800 CSN. 

(2) Listed in paragraph (c)(2)(ii) of the Applicability Section of this AD ................................................................................................ 16,800 CSN. 

(i) Installation Prohibition 

After the effective date of this AD, do not 

install any stage 1 HPT airseal, P/N 50L879, 

stage 2 HPT airseal, P/N 53L030, or stage 1 

HPT airseal ring, P/N 50L664, that is at piecepart exposure and exceeds the new life limit 

listed in Table 1, Table 2, or Table 3 of this 

AD. 

(j) Definitions 

For the purpose of this AD, piece-part 

exposure means that the part is completely 

disassembled and removed from the engine. 

(k) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Engine Certification Office, 

FAA, may approve AMOCs for this AD. Use 

the procedures found in 14 CFR 39.19 to 

make your request. 

(l) Related Information 

For more information about this AD, 

contact James Gray, Aerospace Engineer, 

Engine Certification Office, FAA, 12 New 

England Executive Park, Burlington, MA 

01803; phone: (781) 238–7742; fax: (781) 

238–7199; email: james.e.gray@faa.gov. 

(m) Material Incorporated by Reference 

None. 

Issued in Burlington, MA, on November 

30, 2011. 

Peter A. White, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–31177 Filed 12–5–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF COMMERCE 

Bureau of Economic Analysis 

15 CFR Part 801 

[Docket No. 110112021–1680–03] 

RIN 0691–AA76 

International Services Surveys: 

Amendments to the BE–120, 

Benchmark Survey of Transactions in 

Selected Services and Intangible 

Assets With Foreign Persons 

AGENCY: Bureau of Economic Analysis, 

Commerce. 

ACTION: Final rule. 

SUMMARY: This final rule amends the 

regulations of the Bureau of Economic 

Analysis, Department of Commerce 

(BEA) to set forth the reporting 

requirements for the BE–120, 

Benchmark Survey of Transactions in 

Selected Services and Intellectual 

Property with Foreign Persons. The 

amended regulations for the BE–120 

include both definition changes and the 

addition of three schedules to better 

collect data in accordance with new 

international economic accounting 

standards. In addition, this rule changes 

the BE–120 survey title from 

‘‘Benchmark Survey of Transactions in 

Selected Services and Intangible Assets 

with Foreign Persons’’ to ‘‘Benchmark 

Survey of Transactions in Selected 

Services and Intellectual Property with 

Foreign Persons’’ because the term 

‘‘intellectual property’’ is better 

understood by U.S. respondents. 

The BE–120 survey covers 

transactions in selected services and 

intellectual property with foreign 

persons in benchmark years. In nonbenchmark years, the universe estimates 

for these transactions are derived from 

sample data reported on BEA’s followon survey, which is the Quarterly 

Survey of Transactions in Selected 

Services and Intangible Assets with 

Foreign Persons (BE–125). 

The data collected by the BE–120 will 

be used by BEA to estimate the trade in 

services component of the U.S. 

International Transactions Accounts 

and other economic accounts compiled 

by BEA. The data are also needed by the 

U.S. government to monitor U.S. exports 

and imports of selected services and 

intellectual property; analyze their 

impact on the U.S. and foreign 

economies; support U.S. international 

trade policy for selected services and 

intellectual property; and assess and 

promote U.S. competitiveness in 

international trade in services. In 

addition, the data will improve the 

ability of U.S. businesses to identify and 

evaluate market opportunities. 

DATES: The final rule is effective January 

5, 2012. 

FOR FURTHER INFORMATION CONTACT: 

Chris Emond, Chief, Special Surveys 

Branch, Balance of Payments Division 

(BE–50), Bureau of Economic Analysis, 

U.S. Department of Commerce, 

Washington, DC 20230; email 

Christopher.Emond@bea.gov; or phone 

(202) 606–9826. 

SUPPLEMENTARY INFORMATION: This rule 

amends 15 CFR 801.10 to update certain 

reporting requirements for the BE–120, 

Benchmark Survey of Transactions in 

Selected Services and Intangible Assets 

with Foreign Persons. The revised 


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