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

11140 

Vol. 80, No. 40 

Monday, March 2, 2015 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–1127; Directorate 

Identifier 2014–NE–16–AD] 

RIN 2120–AA64 

Airworthiness Directives; Pratt & 

Whitney Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for all Pratt 

& Whitney (PW) JT8D–217C and JT8D– 

219 turbofan engines. This proposed AD 

was prompted by reports of cracking in 

the low-pressure turbine (LPT) shaft. 

This proposed AD establishes a new 

lower life limit for these parts and 

would require removing affected LPT 

shafts from service using a drawdown 

plan. We are proposing this AD to 

prevent failure of the LPT shaft, which 

could lead to an uncontained engine 

failure and damage to the airplane. 

DATES: We must receive comments on 

this proposed AD by May 1, 2015. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, 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: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this proposed AD, contact Pratt & 

Whitney, 400 Main St., East Hartford, 

CT 06108; phone: 860–565–8770; fax: 

860–565–4503. 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–2014– 

1127; 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 proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Office 

(phone: 800–647–5527) is in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

FOR FURTHER INFORMATION CONTACT: JoAnn Theriault, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7105; fax: 781–238– 

7199; email: jo-ann.theriault@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this NPRM. Send your comments to an 

address listed under the ADDRESSES

section. Include ‘‘Docket No. FAA– 

2014–1127; Directorate Identifier 2014– 

NE–16–AD’’ at the beginning of your 

comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this NPRM. We will consider 

all comments received by the closing 

date and may amend this NPRM 

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 we receive 

about this NPRM. 

Discussion 

We received reports of two LPT shafts 

with in-shop findings of fatigue cracks 

on the No. 4.5 bearing thread undercut 

adjacent to oil feed holes. The cracks 

were discovered during routine 

fluorescent penetrant inspections. Both 

shafts had oil feed hole enlargement 

rework accomplished. The root cause is 

increased stress on the fillet of the 

thread undercut region in front of the oil 

feed holes caused by oil feed hole 

rework. The increased stress reduces the 

low cycle fatigue life of the shaft. This 

condition, if not corrected, could result 

in failure of the LPT shaft, which could 

lead to an uncontained engine failure 

and damage to the airplane. 

Related Service Information Under 1 

CFR Part 51 

We reviewed PW Service Bulletin 

(SB) No. JT8D 6504, dated November 5, 

2014. The SB contains additional 

information regarding removal of the 

LPT shaft. This service information is 

reasonably available; see ADDRESSES for 

ways to access this service information. 

FAA’s Determination 

We are proposing this NPRM because 

we evaluated all the relevant 

information and determined the unsafe 

condition described previously is likely 

to exist or develop in other products of 

the same type design. 

Proposed AD Requirements 

This NPRM would require removing 

affected LPT shafts from service. 

Costs of Compliance 

We estimate that this proposed AD 

would affect about 744 engines installed 

on airplanes of U.S. registry. The 

average labor rate is $85 per hour. We 

estimate the pro-rated replacement cost 

would be $28,230. We also estimate that 

shaft replacement would be 

accomplished during an engine shop 

visit at no additional labor cost. Based 

on these figures, we estimate the cost of 

the proposed AD on U.S. operators to be 

$21,003,120. 

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 


wreier-aviles on DSK5TPTVN1PROD with PROPOSALS
Federal Register / Vol. 80, No. 40 / Monday, March 2, 2015 / Proposed Rules 11141 

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. 

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 airworthiness 

directive (AD): 

Pratt & Whitney: Docket No. FAA–2014– 

1127; Directorate Identifier 2014–NE– 

16–AD. 

(a) Comments Due Date 

We must receive comments by May 1, 

2015. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Pratt & Whitney 

(PW) JT8D–217C and JT8D–219 turbofan 

engines with low-pressure turbine (LPT) 

shaft part numbers 783319, 783319–001, 

783319–003, 783319–004, 783320, 783320– 

001, 783320–003, 783320–004, 820514–001, 

820514–003, 820514–004, or 820514–005, 

installed. 

(d) Unsafe Condition 

This AD was prompted by reports of 

cracking in the LPT shaft. We are issuing this 

AD to prevent failure of the LPT shaft, 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. 

For engines with an LPT shaft part number 

listed in paragraph (c) of this AD: 

(1) If the LPT shaft has 15,000 or fewer 

cycles since new (CSN) on the effective date 

of this AD, remove it from service before it 

accumulates 20,000 CSN. 

(2) If the LPT shaft has more than 15,000 

CSN on the effective date of this AD, remove 

it from service before it accumulates 5,000 

additional cycles in service, or at the next 

piece-part exposure after accumulating 

20,000 CSN, whichever occurs first. 

(3) After the effective date of this AD, do 

not install any LPT shaft listed in paragraph 

(c) of this AD that is at piece-part exposure 

and exceeds the new life limit of 20,000 CSN, 

into any engine. 

(f) Definitions 

For the purpose of this AD, piece-part 

exposure is when the LPT shaft is completely 

disassembled from the engine. 

(g) 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. You may email your 

request to: ANE-AD-AMOC@faa.gov. 

(h) Related Information 

(1) For more information about this AD, 

contact Jo-Ann Theriault, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; phone: 781–238–7105; fax: 781–238– 

7199; email: jo-ann.theriault@faa.gov. 

(2) PW Service Bulletin No. JT8D 6504, 

dated November 5, 2014, which is not 

incorporated by reference in this proposed 

AD, can be obtained from PW using the 

contact information in paragraph (h)(3) of 

this proposed AD. 

(3) For service information identified in 

this proposed AD, contact Pratt & Whitney, 

400 Main St., East Hartford, CT 06108; 

phone: 860–565–8770; fax: 860–565–4503. 

(4) 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 

February 20, 2015. 

Colleen M. D’Alessandro, 

Assistant Directorate Manager, Engine & 

Propeller Directorate, Aircraft Certification 

Service. 

[FR Doc. 2015–04059 Filed 2–27–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF THE TREASURY 

Internal Revenue Service 

26 CFR Part 1 

[REG–136018–13] 

RIN 1545–BM20 

Determination of Adjusted Applicable 

Federal Rates Under Section 1288 and 

the Adjusted Federal Long-Term Rate 

Under Section 382 

AGENCY: Internal Revenue Service (IRS), 

Treasury. 

ACTION: Notice of proposed rulemaking 

and notice of public hearing. 

SUMMARY: This document contains 

proposed regulations that provide the 

method to be used to adjust the 

applicable Federal rates (AFRs) under 

section 1288 of the Internal Revenue 

Code (Code) (adjusted AFRs) for taxexempt obligations and the method to 

be used to determine the long-term taxexempt rate and the adjusted Federal 

long-term rate under section 382. For 

tax-exempt obligations, the proposed 

regulations affect the determination of 

original issue discount under section 

1273 and of total unstated interest under 

section 483. In addition, the proposed 

regulations affect the determination of 

the limitations under sections 382 and 

383 on the use of certain operating loss 

carryforwards, tax credits, and other 

attributes of corporations following 

ownership changes. This document also 

contains a request for comments and 

provides notice of a public hearing on 

these proposed regulations. 

DATES: Written or electronic comments 

must be received by June 1, 2015. 

Outlines of topics to be discussed at the 

public hearing scheduled for June 24, 

2015 must be received by June 1, 2015. 

ADDRESSES: Send submissions to: 

CC:PA:LPD:PR (REG–136018–13), Room 

5203, Internal Revenue Service, P.O. 

Box 7604, Ben Franklin Station, 

Washington, DC 20044. Submissions 

may be hand-delivered Monday through 

Friday between the hours of 8 a.m. and 

4 p.m. to CC:PA:LPD:PR (REG–136018– 

13), Courier’s Desk, Internal Revenue 

Service, 1111 Constitution Avenue NW., 

Washington, DC, or sent electronically, 


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