7730 Federal Register / Vol. 62, No. 34 / Thursday, February 20, 1997 / Proposed Rules

action is no longer necessary.

Accordingly, the NPRM is hereby

withdrawn.

Withdrawal of this NPRM 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.

Regulatory Impact

Since this action only withdraws a

notice of proposed rulemaking, it is

neither a proposed nor a final rule and

therefore, is not covered under

Executive Order 12866, the Regulatory

Flexibility Act, or DOT Regulatory

Policies and Procedures (44 FR 11034,

February 26, 1979).

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation

safety, Safety.

The Withdrawal

Accordingly, the notice of proposed

rulemaking, Docket 95–NM–222–AD,

published in the Federal Register on

April 1, 1996 (61 FR 14269), is

withdrawn.

Issued in Renton, Washington, on February

12, 1997.

Darrell M. Pederson,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 97–4100 Filed 2–19–97; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 39

[Docket No. 96–ANE–24]

RIN 2120–AA64

Airworthiness Directives; AlliedSignal

Inc. and Rajay Inc. Oil Scavenge

Pumps

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Notice of proposed rulemaking

(NPRM).

SUMMARY: This document proposes the

adoption of a new airworthiness

directive (AD) that is applicable to

AlliedSignal Inc. oil scavenge pumps,

Part Numbers (P/Ns) 101633–01 and –02

and Rajay Inc. oil scavenge pumps, P/

Ns 1025–1 and –2. This proposal would

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 replacement, if

necessary, with serviceable parts. This

proposal is prompted by reports of

severe wear on the end plate of the oil

scavenge pump. The actions specified

by the proposed AD are 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.

DATES: Comments must be received by

April 21, 1997.

ADDRESSES: Submit comments in

triplicate to the Federal Aviation

Administration (FAA), New England

Region, Office of the Assistant Chief

Counsel, Attention: Rules Docket No.

96–ANE–24, 12 New England Executive

Park, Burlington, MA 01803–5299.

Comments may also be sent via the

Internet using the following address: ‘‘9-

ad-engineprop@dot.faa.gov’’. Comments

sent via the Internet must contain the

docket number in the subject line.

Comments may be inspected at this

location between 8:00 a.m. and 4:30

p.m., Monday through Friday, except

Federal holidays.

FOR FURTHER INFORMATION CONTACT:

Richard Simonson, Aerospace Engineer,

Seattle Aircraft Certification Office,

FAA, Transport Airplane Directorate,

1601 Lind Avenue, SW, Renton, WA

98055–4056; telephone (206) 227–2597,

fax (206) 227–1181.

SUPPLEMENTARY INFORMATION:

Comments Invited

Interested persons are invited to

participate in the making of the

proposed rule by submitting such

written data, views, or arguments as

they may desire. Communications

should identify the Rules Docket

number and be submitted in triplicate to

the address specified above. All

communications received on or before

the closing date for comments, specified

above, will be considered before taking

action on the proposed rule. The

proposals contained in this notice may

be changed in light of the comments

received.

Comments are specifically invited on

the overall regulatory, economic,

environmental, and energy aspects of

the proposed rule. All comments

submitted will be available, both before

and after the closing date for comments,

in the Rules Docket for examination by

interested persons. A report

summarizing each FAA-public contact

concerned with the substance of this

proposal will be filed in the Rules

Docket.

Commenters wishing the FAA to

acknowledge receipt of their comments

submitted in response to this notice

must submit a self-addressed, stamped

postcard on which the following

statement is made: ‘‘Comments to

Docket Number 96–ANE–24.’’ The

postcard will be date stamped and

returned to the commenter.

Availability of NPRMs

Any person may obtain a copy of this

NPRM by submitting a request to the

FAA, New England Region, Office of the

Assistant Chief Counsel, Attention:

Rules Docket No. 96–ANE–24, 12 New

England Executive Park, Burlington, MA

01803–5299.

Discussion

The Federal Aviation Administration

(FAA) has received reports of severe

wear on the pump end plate of

AlliedSignal Inc. oil scavenge pumps,

Part Numbers (P/Ns) 101633–01 and –02

and Rajay Inc. oil scavenge pumps, P/

Ns 1025–1 and –2. The investigation

revealed that the pump end plate failure

was caused by failure of the snap ring

that locates the pump rotor along the

longitudinal axis of the pump. Further

investigation revealed an incident

where the pump end plate was worn

completely through, resulting in loss of

engine oil and subsequent engine

shutdown. This condition, if not

corrected, could result in 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 an unsafe condition has been

identified that is likely to exist or

develop on other products of this same

type design, the proposed AD would

require initial and repetitive inspections

of the oil scavenge pump for security of

the snap ring installation, snap ring and

washer wear, and shaft groove wear, and

replacement, if necessary, with

serviceable parts. The FAA has

determined that changes in pump

design may warrant future rulemaking.

The FAA estimates that 3,000 pumps

installed on aircraft of U.S. registry

would be affected by this proposed AD.

The FAA estimates that it would take

approximately 4 work hours per oil

scavenge pump to accomplish the

proposed actions, and that the average

labor rate is $60 per work hour.

Required parts, if the scavenge pump

requires replacement, would cost

approximately $1,000 per oil scavenge

pump. Based on these figures, the total

cost impact of the proposed AD on U.S.

operators is estimated to be $3,720,000.

The regulations proposed herein

would not have substantial direct effects

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. Therefore,

in accordance with Executive Order

12612, it is determined that this
Federal Register / Vol. 62, No. 34 / Thursday, February 20, 1997 / Proposed Rules 7731

proposal would not have sufficient

federalism implications to warrant the

preparation of a Federalism Assessment.

For the reasons discussed above, I

certify that 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) if

promulgated, 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. A copy of the draft

regulatory evaluation prepared for this

action is contained in the Rules Docket.

A copy of it may be obtained by

contacting the Rules Docket at the

location provided under the caption

ADDRESSES.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation

safety, Safety.

The Proposed Amendment

Accordingly, pursuant to the

authority delegated to me by the

Administrator, the Federal Aviation

Administration proposes to amend part

39 of the Federal Aviation Regulations

(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. Section 39.13 is amended by

adding the following new airworthiness

directive:

Allied Signal Inc. and Rajay Inc.: Docket No.

96–ANE–24.

Applicability: AlliedSignal Inc. oil

scavenge pumps, Part Numbers (P/Ns)

101633–01 and –02 and Rajay oil scavenge

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

Teledyne Continental Motors IO–470 and

TSIO–520 series, and Textron Lycoming O360, IO–360, and IO–540 series reciprocating

engines. These engines are installed on but

not limited to reciprocating engine powered

aircraft manufactured by Aerostar Aircraft

Corporation, Cessna, Curtiss-Wright

Corporation (Travel Air), Helio Enterprises,

Inc., The New Piper Aircraft Corporation,

Revo Inc. (Lake), and Twin Commander.

Note 1: This airworthiness directive (AD)

applies to each oil scavenge pump identified

in the preceding applicability provision,

regardless of whether it has been modified,

altered, or repaired in the area subject to the

requirements of this AD. For oil scavenge

pumps that have been modified, altered, or

repaired so that the performance of the

requirements of this AD is affected, the

owner/operator must request approval for an

alternative method of compliance in

accordance with paragraph (d) of this AD.

The request should include an assessment of

the effect of the modification, alteration, or

repair on the unsafe condition addressed by

this AD; and, if the unsafe condition has not

been eliminated, the request should include

specific proposed actions to address it.

Compliance: Required as indicated, unless

accomplished previously.

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,

accomplish the following:

(a) Within 25 hours time in service (TIS)

after the effective date of this AD, inspect oil

scavenge pumps in accordance with the

following instructions or Aerostar Aircraft

Corporation Service Bulletin (SB) No.

SB600–131, dated June 14, 1996.

(1) Remove the oil scavenge pump and

inspect for security of the snap ring

installation.

(2) Remove the snap ring and washer

between the snap ring and bearing, and

inspect the snap ring and washer for wear,

consisting of thinning or bevelling at the

inside diameter. If any wear visible to the

naked eye is detected, replace with a

serviceable snap ring and washer prior to

further flight.

(3) Inspect the shaft groove for round wear

on the spline side of the groove. If any wear

visible to the naked eye is detected, replace

with a serviceable shaft prior to further flight.

(4) If the snap ring is not in the shaft

groove, disassemble the entire scavenge

pump and inspect for internal damage prior

to further flight. If any internal damage is

found, replace the oil scavenge pump with a

serviceable oil scavenge pump prior to

further flight.

(b) Thereafter, at each 100-hour and annual

inspection, perform repetitive inspections,

and, if necessary, replace with serviceable

parts, in accordance with paragraph (a) of

this AD.

(c) Accomplishment of the procedures

described in Aerostar Aircraft Corporation

Service Bulletin No. SB600–131, dated June

14, 1996, constitutes an acceptable

alternative method of compliance for the

actions required by this AD.

(d) An alternative method of compliance or

adjustment of the compliance time that

provides an acceptable level of safety may be

used if approved by the Manager, Seattle

Aircraft Certification Office. The request

should be forwarded through an appropriate

FAA Maintenance Inspector, who may add

comments and then send it to the Manager,

Seattle Aircraft Certification Office.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this airworthiness directive,

if any, may be obtained from the Seattle

Aircraft Certification Office.

(e) Special flight permits may be issued in

accordance with sections 21.197 and 21.199

of the Federal Aviation Regulations (14 CFR

21.197 and 21.199) to operate the aircraft to

a location where the requirements of this AD

can be accomplished.

Issued in Burlington, Massachusetts, on

February 4, 1997.

James C. Jones,

Acting Manager, Engine and Propeller

Directorate, Aircraft Certification Service.

[FR Doc. 97–4144 Filed 2–19–97; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 39

[Docket No. 96–NM–190–AD]

RIN 2120–AA64

Airworthiness Directives; Raytheon

Model DH 125–1A, –3A, and –400A

Series Airplanes

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Notice of proposed rulemaking

(NPRM).

SUMMARY: This document proposes the

adoption of a new airworthiness

directive (AD) that is applicable to all

Raytheon Model DH 125–1A, –3A, and

–400A series airplanes. This proposal

would require a one-time inspection to

detect scoring of the upper fuselage skin

around the periphery of the cockpit

canopy blister interface, and repair, if

necessary. This proposal is prompted by

reports indicating that scoring of the

upper fuselage skin had been detected

in that area. The actions specified by the

proposed AD are intended to detect and

correct scoring of the upper fuselage

skin around the periphery of the cockpit

canopy blister interface, which could

result in reduced structural integrity of

the fuselage, and consequent cabin

depressurization.

DATES: Comments must be received by

March 31, 1997.

ADDRESSES: Submit comments in

triplicate to the Federal Aviation

Administration (FAA), Transport

Airplane Directorate, ANM–103,

Attention: Rules Docket No. 96–NM–

190–AD, 1601 Lind Avenue, SW.,

Renton, Washington 98055–4056.

Comments may be inspected at this

location between 9:00 a.m. and 3:00

p.m., Monday through Friday, except

Federal holidays.

The service information referenced in

the proposed rule may be obtained from

Raytheon Aircraft Company,

Commercial Service Department, P.O.

Box 85, Wichita, Kansas 67201–0085.

This information may be examined at

the FAA, Transport Airplane

Directorate, 1601 Lind Avenue, SW.,

Renton, Washington; or at the FAA,

Small Airplane Directorate, Wichita

Aircraft Certification Office, 1801

Airport Road, Room 100, Mid-Continent

Airport, Wichita, Kansas.