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

35260 

Vol. 80, No. 118 

Friday, June 19, 2015 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–0909; Directorate 

Identifier 96–ANE–24–AD] 

RIN 2120–AA64 

Airworthiness Directives; AlliedSignal 

Inc. and Rajay Inc. Oil Scavenge 

Pumps 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Proposed rule; withdrawal. 

SUMMARY: The FAA is withdrawing a 

notice of proposed rulemaking (NPRM). 

The NPRM proposed a new 

airworthiness directive (AD) that had 

applied to AlliedSignal oil scavenge 

pumps, part numbers (P/Ns) 101633–01 

and –02 and Rajay Inc. oil scavenge 

pumps, P/Ns 1025–1 and –2 installed on 

Continental Motors, Inc. (CMI) IO–470 

and TSIO–520 reciprocating engines 

and on Lycoming Engines, Inc., 

(Lycoming) IO–360, IO–540, and O–360 

reciprocating engines. We have found 

no service difficulties with these model 

oil scavenge pumps when installed on 

the affected engines. Accordingly, we 

withdraw the proposed rule. 

DATES: As of June 19, 2015, the 

proposed rule published February 20, 

1997 at 62 FR 7730 is withdrawn. 

FOR FURTHER INFORMATION CONTACT: 

Richard McCauley, Aerospace Engineer, 

Seattle Aircraft Certification Office, 

FAA, Transport Directorate, 1601 Lind 

Avenue SW., Renton, WA 98055–4056; 

phone: 425–917–6502; fax: 425–917– 

6590; email: richard.mccauley@faa.gov. 

SUPPLEMENTARY INFORMATION: The FAA 

proposed to amend 14 CFR part 39 with 

a proposed AD (62 FR 7730, February 

20, 1997). The proposed AD had applied 

to AlliedSignal oil scavenge pumps, 

P/Ns 101633–01 and –02 and Rajay Inc. 

oil scavenge pumps, P/Ns 1025–1 and 

–2 installed on CMI IO–470 and TSIO– 

520 reciprocating engines and on 

Lycoming IO–360, IO–540, and O–360 

reciprocating engines. The NPRM 

proposed to require initial and 

repetitive inspections of the oil 

scavenge pump for the security of the 

snap ring installation, snap ring and 

washer wear, and shaft groove wear, and 

their replacement, if necessary, with 

serviceable parts. The proposed action 

was prompted by reports of severe wear 

on the end plate of the oil scavenge 

pump. The proposed actions were 

intended to prevent oil scavenge pump 

snap ring failure causing severe wear on 

the pump end plate, which could result 

in loss of engine oil and subsequent 

engine shutdown. 

Since we issued the NPRM (62 FR 

7730, February 20, 1997), additional 

information became available after the 

public comment period closed on April 

21, 1997. 

Upon further consideration, we 

hereby withdraw the proposed rule for 

the following reason: 

• We reviewed service difficulty 

reports, AD databases, and airplane 

manufacturer’s data and found no 

unsafe condition in the last 19 years of 

service history associated with these oil 

scavenge pumps installed on the 

affected engines. 

Withdrawal of the NPRM (62 FR 7730, 

February 20, 1997) constitutes only such 

action, and does not preclude the 

agency from issuing another notice in 

the future, nor does it commit the 

agency to any course of action in the 

future. 

Since this action only withdraws a 

notice of proposed rulemaking, it is 

neither a proposed nor a final rule. 

Therefore, Executive Order 12866, the 

Regulatory Flexibility Act, or DOT 

Regulatory Policies and Procedures (44 

FR 11034, February 26, 1979) do not 

cover this withdrawal. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Withdrawal 

Accordingly, the notice of proposed 

rulemaking, Docket No. FAA–2015– 

0909; Directorate Identifier 96–ANE– 

24–AD, published in the Federal 

Register on February 20, 1997 (62 FR 

7730), is withdrawn. 

Issued in Burlington, Massachusetts, on 

June 10, 2015. 

Ann C. Mollica, 

Acting Directorate Manager, Engine & 

Propeller Directorate, Aircraft Certification 

Service. 

[FR Doc. 2015–14993 Filed 6–18–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–0486; Directorate 

Identifier 2015–NE–07–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) 

PT6B–37A turboshaft engines. This 

proposed AD was prompted by reports 

of incorrect engine torque for PT6B–37A 

engines. This proposed AD would 

require initial and repetitive inspections 

until replacement of the No. 10 bearing, 

and eventual replacement of the No. 9 

bearing, both located in the engine 

reduction gearbox (RGB) assembly. We 

are proposing this AD to prevent axial 

migration of the No. 10 bearing in the 

engine RGB assembly, which could lead 

to engine overtorque, failure of the 

engine, in-flight shutdown, and loss of 

the rotorcraft. 

DATES: We must receive comments on 

this proposed AD by August 18, 2015. 

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. 

• 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. 


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