Federal Register / Vol. 75, No. 159 / Wednesday, August 18, 2010 / Proposed Rules 50945 

may not be used to approve alternative 

methods of compliance or adjustments to the 

times in which these inspections must be 

performed. 

(j) The Manager, Engine Certification 

Office, has the authority to approve 

alternative methods of compliance for this 

AD if requested using the procedures found 

in 14 CFR 39.19. 

Maintaining Records of the Mandatory 

Inspections 

(k) You have met the requirements of this 

AD when you revise the TLS of the 

manufacturer’s engine manual as specified in 

paragraph (f) of this AD. For air carriers 

operating under part 121 of the Federal 

Aviation Regulations (14 CFR part 121), you 

have met the requirements of this AD when 

you modify your continuous airworthiness 

maintenance plan to reflect those changes. 

You do not need to record each piece-part 

inspection as compliance to this AD, but you 

must maintain records of those inspections 

according to the regulations governing your 

operation. For air carriers operating under 

part 121, you may use either the system 

established to comply with section 121.369 

or an alternative accepted by your principal 

maintenance inspector if that alternative: 

(1) Includes a method for preserving and 

retrieving the records of the inspections 

resulting from this AD; and 

(2) Meets the requirements of section 

121.369(c); and 

(3) Maintains the records either 

indefinitely or until the work is repeated. 

(l) These record keeping requirements 

apply only to the records used to document 

the mandatory inspections required as a 

result of revising the TLS of the 

manufacturer’s engine manual as specified in 

paragraph (f) of this AD. These record 

keeping requirements do not alter or amend 

the record keeping requirements for any 

other AD or regulatory requirement. 

Related Information 

(m) Contact Ian Dargin, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine and Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; e-mail: ian.dargin@faa.gov; telephone 

(781) 238–7178, fax (781) 238–7199, for more 

information about this AD. 

Issued in Burlington, Massachusetts, on 

August 6, 2010. 

Peter A. White, 

Assistant Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–20351 Filed 8–17–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0594; Directorate 

Identifier 98–ANE–43–AD] 

RIN 2120–AA64 

Airworthiness Directives; Pratt & 

Whitney JT8D–209, –217, –217A, 

–217C, and –219 Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA is superseding an 

existing airworthiness directive (AD) for 

Pratt & Whitney (PW) JT8D–209, –217, 

–217A, –217C, and –219 turbofan 

engines. That AD currently requires 

revisions to the engine manufacturer’s 

time limits section (TLS) to include 

enhanced inspection of selected critical 

life-limited parts at each piece-part 

opportunity. This AD requires 

modifying the TLS of the manufacturer’s 

engine manual and an air carrier’s 

approved continuous airworthiness 

maintenance program to incorporate 

additional inspection requirements. 

Pratt & Whitney has developed and the 

FAA has approved improved inspection 

procedures for the critical life-limited 

parts. The mandatory inspections are 

needed to identify those critical rotating 

parts with conditions, which if allowed 

to continue in service, could result in 

uncontained failures. We are issuing 

this AD to prevent critical life-limited 

rotating engine part failure, which could 

result in an uncontained engine failure 

and damage to the airplane. 

DATES: We must receive any comments 

on this proposed AD by October 18, 

2010. 

ADDRESSES: Use one of the following 

addresses to comment on this proposed 

AD. 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov and follow 

the instructions for sending your 

comments electronically. 

• 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. 

• Fax: (202) 493–2251. 

FOR FURTHER INFORMATION CONTACT: Ian 

Dargin, Aerospace Engineer, Engine 

Certification Office, FAA, Engine and 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

e-mail: ian.dargin@faa.gov; telephone 

(781) 238–7178, fax (781) 238–7199. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments 

regarding this proposal. Send your 

comments to an address listed under 

ADDRESSES. Include ‘‘Docket No. FAA– 

2010–0594; Directorate Identifier 98– 

ANE–43–AD’’ in the subject line of your 

comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of the proposed AD. We will 

consider all comments received by the 

closing date and may amend the 

proposed AD in light 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 proposed 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). 

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 proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Operations 

office (telephone (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. 

Discussion 

On August 24, 2005, the FAA issued 

airworthiness directive (AD) 2005–18– 

02, Amendment 39–14242 (70 FR 

52004, September 1, 2005), to require 

revisions to the TLS of the 

manufacturer’s engine manual for these 

engines to include required enhanced 

inspection of selected critical lifelimited parts at each piece-part 

opportunity. 


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50946 Federal Register / Vol. 75, No. 159 / Wednesday, August 18, 2010 / Proposed Rules 

New Inspection Procedures 

Since the issuance of that AD, Pratt & 

Whitney has developed and the FAA 

has approved improved inspection 

procedures for the critical life-limited 

parts. The mandatory inspections are 

needed to identify those critical rotating 

parts with conditions, which if allowed 

to continue in service, could result in 

uncontained failures. This proposal 

would add new inspection methods to 

the TLS of the manufacturer’s engine 

manual and an air carrier’s approved 

continuous airworthiness maintenance 

program to incorporate additional 

inspection requirements for 1st stage 

compressor hubs, 3rd stage turbine 

disks, and 4th stage turbine disks. 

FAA’s Determination of an Unsafe 

Condition and Proposed Actions 

Since an unsafe condition has been 

identified that is likely to exist or 

develop on other PW JT8D–209, –217, 

–217A, –217C, and –219 turbofan 

engines of the same type design, the 

proposed AD would supersede AD 

2005–18–02 to add new inspection 

methods for 1st stage compressor hubs, 

3rd stage turbine disks, and 4th stage 

turbine disks. For reference, this 

proposed AD carries forward the 

requirements from AD 2005–18–02. 

Also for reference, parts that have an 

Engine Manual Inspection Task and/or 

Sub Task Number reference updated in 

the table in the compliance section of 

this AD, are identified by an asterisk (*) 

that precedes the part nomenclature. 

Costs of Compliance 

We estimate that this proposed AD 

would affect 1,143 JT8D–209, –217, 

–217A, –217C, and –219 turbofan 

engines installed on airplanes of U.S. 

registry. We also estimate that it would 

take about 10 work-hours per engine to 

perform the proposed actions, and that 

the average labor rate is $85 per workhour. Since this is an added inspection 

requirement, included as part of the 

normal maintenance cycle, no 

additional part costs are involved. Based 

on these figures, we estimate the total 

cost of the proposed AD to U.S. 

operators to be $971,550. 

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. 

Regulatory Findings 

We have 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 that the proposed 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. Would 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 proposed AD. See the ADDRESSES

section for a location to examine the 

regulatory evaluation. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Safety. 

The Proposed Amendment 

Under the authority delegated to me 

by the Administrator, the Federal 

Aviation Administration 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 

removing Amendment 39–14242 (70 FR 

52004, September 1, 2005) and by 

adding a new airworthiness directive to 

read as follows: 

Pratt & Whitney: Docket No. FAA–2010– 

0594; Directorate Identifier 98–ANE–43– 

AD. 

Comments Due Date 

(a) The Federal Aviation Administration 

(FAA) must receive comments on this 

airworthiness directive (AD) action by 

October 18, 2010. 

Affected ADs 

(b) This AD supersedes AD 2005–18–02, 

Amendment 39–14242. 

Applicability 

(c) This AD applies to Pratt & Whitney 

(PW) JT8D–209, –217, –217A, –217C, and 

–219 turbofan engines. These engines are 

installed on, but not limited to Boeing 727 

and McDonnell Douglas MD–80 series 

airplanes. 

Unsafe Condition 

(d) This AD results from the need to 

require enhanced inspection of selected 

critical life-limited parts of JT8D–209, –217, 

–217A, –217C, and –219 turbofan engines. 

We are issuing this AD to prevent critical 

life-limited rotating engine part failure, 

which could result in an uncontained engine 

failure and damage to the airplane. 

Compliance 

(e) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified unless the 

actions have already been done. 

(f) Within the next 30 days after the 

effective date of this AD, (1) revise the Time 

Limits section (TLS) of the manufacturer’s 

engine manual, part number 773128, as 

appropriate for PW JT8D–209, –217, –217A, 

–217C, and –219 turbofan engines, and (2) for 

air carriers, revise the approved mandatory 

inspections section of the continuous 

airworthiness maintenance program, by 

adding the following: 

‘‘Critical Life Limited Part Inspection 

A. Inspection Requirements: 

(1) This section contains the definitions for 

individual engine piece-parts and the 

inspection procedures, which are necessary, 

when these parts are removed from the 

engine. 

(2) It is necessary to do the inspection 

procedures of the piece-parts in Paragraph B 

when: 

(a) The part is removed from the engine 

and disassembled to the level specified in 

paragraph B and 

(b) The part has accumulated more than 

100 cycles since the last piece part 

inspection, provided that the part is not 

damaged or related to the cause of its 

removal from the engine. 

(3) The inspections specified in this 

section do not replace or make unnecessary 

other recommended inspections for these 

parts or other parts. 

B. Parts Requiring Inspection. 

Note: Piece part is defined as any of the 

listed parts with all the blades removed. 


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Federal Register / Vol. 75, No. 159 / Wednesday, August 18, 2010 / Proposed Rules 50947 

Description Section Inspection No. 

Hub (Disk), 1st Stage Compressor: 

* Hub Detail—All P/Ns ........................................................................................................................................ 72–33–31 –03, –04, –05 

* Hub Assembly—All P/Ns .................................................................................................................................. 72–33–31 –03, –04, –05 

Disk, 13th Stage Compressor—All P/Ns ................................................................................................................... 72–36–47 –02 

HP Turbine, First Stage: 

Rotor Assembly—All P/Ns .................................................................................................................................. 72–52–02 –04 

Disk—All P/Ns .................................................................................................................................................... 72–52–02 –03 

Disk, 2nd Stage Turbine—All P/Ns ........................................................................................................................... 72–53–16 –02 

* Disk, 3rd Stage Turbine—All P/Ns .......................................................................................................................... 72–53–17 –02, –03 

* Disk, 4th Stage Turbine—All P/Ns .......................................................................................................................... 72–53–18 –02, –03’’ 

(g) The parts that have an Engine Manual 

Inspection Task and or Sub Task Number 

reference updated in the table of this AD, are 

identified by an asterisk (*) that precedes the 

part nomenclature. 

(h) Except as provided in paragraph (i) of 

this AD, and notwithstanding contrary 

provisions in section 43.16 of the Federal 

Aviation Regulations (14 CFR 43.16), these 

mandatory inspections shall be performed 

only in accordance with the TLS of the 

manufacturer’s engine manual. 

Alternative Methods of Compliance (AMOC) 

(i) You must perform these mandatory 

inspections using the TLS of the 

manufacturer’s engine manual unless you 

receive approval to use an AMOC under 

paragraph (j) of this AD. Section 43.16 of the 

Federal Aviation Regulations (14 CFR 43.16) 

may not be used to approve alternative 

methods of compliance or adjustments to the 

times in which these inspections must be 

performed. 

(j) The Manager, Engine Certification 

Office, has the authority to approve 

alternative methods of compliance for this 

AD if requested using the procedures found 

in 14 CFR 39.19. 

Maintaining Records of the Mandatory 

Inspections 

(k) You have met the requirements of this 

AD when you revise the TLS of the 

manufacturer’s engine manual as specified in 

paragraph (f) of this AD. For air carriers 

operating under part 121 of the Federal 

Aviation Regulations (14 CFR part 121), you 

have met the requirements of this AD when 

you modify your continuous airworthiness 

maintenance plan to reflect those changes. 

You do not need to record each piece-part 

inspection as compliance to this AD, but you 

must maintain records of those inspections 

according to the regulations governing your 

operation. For air carriers operating under 

part 121, you may use either the system 

established to comply with § 121.369 or an 

alternative accepted by your principal 

maintenance inspector if that alternative: 

(1) Includes a method for preserving and 

retrieving the records of the inspections 

resulting from this AD; and 

(2) Meets the requirements of § 121.369(c); 

and 

(3) Maintains the records either 

indefinitely or until the work is repeated. 

(l) These recordkeeping requirements 

apply only to the records used to document 

the mandatory inspections required as a 

result of revising the TLS of the 

manufacturer’s engine manual as specified in 

paragraph (f) of this AD. These record 

keeping requirements do not alter or amend 

the record keeping requirements for any 

other AD or regulatory requirement. 

Related Information 

(m) Contact Ian Dargin, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine and Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; e-mail: ian.dargin@faa.gov; telephone 

(781) 238–7178, fax (781) 238–7199, for more 

information about this AD. 

Issued in Burlington, Massachusetts, on 

August 10, 2010. 

Francis A. Favara, 

Manager, Engine and Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–20350 Filed 8–17–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2010–0605; Airspace 

Docket No. 10–AGL–10] 

Proposed Amendment of Class E 

Airspace; Kokomo, IN 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

amend Class E airspace at Kokomo, IN. 

Additional controlled airspace is 

necessary to accommodate new 

Standard Instrument Approach 

Procedures (SIAPs) at Kokomo 

Municipal Airport. Minor adjustments 

to geographic coordinates also would be 

made. This action also would change 

the name of Logansport Municipal 

Airport. The FAA is taking this action 

to enhance the safety and management 

of Instrument Flight Rules (IFR) 

operations at the airport. 

DATES: 0901 UTC. Comments must be 

received on or before October 4, 2010. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, 1200 

New Jersey Avenue SE., West Building 

Ground Floor, Room W12–140, 

Washington, DC 20590–0001. You must 

identify the docket number FAA–2010– 

0605/Airspace Docket No. 10–AGL–10, 

at the beginning of your comments. You 

may also submit comments through the 

Internet at http://www.regulations.gov. 

You may review the public docket 

containing the proposal, any comments 

received, and any final disposition in 

person in the Dockets Office between 

9 a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. The 

Docket Office (telephone 1–800–647– 

5527) is on the ground floor of the 

building at the above address. 

FOR FURTHER INFORMATION CONTACT: 

Scott Enander, Central Service Center, 

Operations Support Group, Federal 

Aviation Administration, Southwest 

Region, 2601 Meacham Blvd., Fort 

Worth, TX 76137; telephone: 817–321– 

7716. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

Interested parties are invited to 

participate in this proposed rulemaking 

by submitting such written data, views, 

or arguments, as they may desire. 

Comments that provide the factual basis 

supporting the views and suggestions 

presented are particularly helpful in 

developing reasoned regulatory 

decisions on the proposal. Comments 

are specifically invited on the overall 

regulatory, aeronautical, economic, 

environmental, and energy-related 

aspects of the proposal. 

Communications should identify both 

docket numbers and be submitted in 

triplicate to the address listed above. 

Commenters wishing the FAA to 

acknowledge receipt of their comments 

on this notice must submit with those 

comments a self-addressed, stamped 

postcard on which the following 

statement is made: ‘‘Comments to 

Docket No. FAA–2010–0605/Airspace 

Docket No. 10–AGL–10.’’ The postcard 

will be date/time stamped and returned 

to the commenter. 


erowe on DSK5CLS3C1PROD with PROPOSALS