Federal Register / Vol. 76, No. 201 / Tuesday, October 18, 2011 / Proposed Rules 64293 

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): 

General Electric Company (GE): Docket No. 

FAA–2011–0982; Directorate Identifier 

2011–NE–09–AD. 

(a) Comments Due Date 

We must receive comments by December 2, 

2011. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD is applicable to all GE CF6– 

80C2A1, CF6–80C2A2, CF6–80C2A3, CF6– 

80C2A5, CF6–80C2A5F, CF6–80C2A8, CF6– 

80C2B1, CF6–80C2B1F, CF6–80C2B1F1, 

CF6–80C2B1F2, CF6–80C2B2, CF6– 

80C2B2F, CF6–80C2B3F, CF6–80C2B4, CF6– 

80C2B4F, CF6–80C2B5F, CF6–80C2B6, CF6– 

80C2B6F, CF6–80C2B6FA, CF6–80C2B7F, 

CF6–80C2B8F, CF6–80C2D1F, CF6–80C2K1F 

and CF6–80C2L1F turbofan engines, 

including engines marked on the engine data 

plate as CF6–80C2B7F1. 

(d) Unsafe Condition 

This AD was prompted by a report of a 

supplier shipping a batch of nonconforming 

No. 3 bearing packings that had an incorrect 

size of cooling holes and by several 

subsequent reports of nonconforming No. 3 

bearing packings being installed on engines 

in service. The nonconformance of No. 3 

bearing packings will result in incorrect highpressure compressor (HPC) rotor and lowpressure turbine (LPT) rotor bore cooling 

and, if not corrected, could result in a 

reduced parts life of the life-limited rotating 

parts. We are issuing this AD to prevent an 

uncontained failure of the high-pressure 

compressor (HPC) rotor or the low-pressure 

turbine (LPT) rotor or both, which could 

cause damage to the airplane. 

(e) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(f) One-Time Inspection of the No. 3 Bearing 

Packing and Disposition of Affected Rotating 

Parts 

(1) Perform a one-time inspection of the 

No. 3 bearing packing at the next engine shop 

visit, but not later than 5,500 cycles-inservice (CIS) since the last engine shop visit, 

where the fan was removed from the core. 

Use paragraphs 3.A.(1) through 3.A.(1).(a) of 

the Accomplishment Instructions of GE 

Service Bulletin (SB) No. CF6–80C2 S/B 72– 

1405, dated June 30, 2011. 

(2) If the packing part number (P/N) is 

determined not eligible for installation on the 

engine, then before further flight: 

(i) Remove the nonconforming packing 

from service; and 

(ii) Remove the following rotating parts 

from service, if they were operated for 5,500 

CIS or more with a packing determined to be 

other than a ‘‘CORRECT FLOW’’ packing 

using paragraph 3.A.(1).(b) of the 

Accomplishment Instructions of SB No. CF6– 

80C2 S/B 72–1405, dated June 30, 2011: 

(A) HPC rotor stage 10-through-14 spool, 

any P/N, 

(B) HPC rotor stage 11-through-14 spool, 

any P/N, 

(C) LPT rotor stage 3 disk, P/N 

9373M53P05, and 

(D) LPT rotor stage 4 disk, P/N 

9373M54P03. 

(g) Definition 

For the purposes of this AD, an engine 

shop visit is the induction of an engine into 

the shop after the effective date of this AD, 

where the separation of a major engine flange 

occurs; except the following maintenance 

actions, or any combination, are not 

considered engine shop visits: 

(1) Introduction of an engine into a shop 

solely for removal of the compressor top or 

bottom case for airfoil maintenance or 

variable stator vane bushing replacement. 

(2) Introduction of an engine into a shop 

solely for replacement of the turbine rear 

frame. 

(3) Introduction of an engine into a shop 

solely for replacement of the accessory 

gearbox or transfer gearbox, or both. 

(h) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Engine Certification Office, 

FAA, has the authority to approve AMOCs 

for this AD, if requested using the procedures 

found in 14 CFR 39.19. 

(i) Related Information 

(1) For more information about this AD, 

contact Tomasz Rakowski, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; phone: 781–238–7735; fax: 781–238– 

7199; e-mail: tomasz.rakowski@faa.gov. 

(2) For service information identified in 

this AD, contact GE-Aviation M/D Rm. 285, 

One Neumann Way, Cincinnati, OH 45215, 

phone 513–552–3272; e-mail: 

geae.aoc@ge.com. 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. 

Issued in Burlington, Massachusetts, on 

October 6, 2011. 

Peter A. White, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–26825 Filed 10–17–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0946; Directorate 

Identifier 2011–NE–02–AD] 

RIN 2120–AA64 

Airworthiness Directives; CFM 

International, S. A. Model CFM56–5B 

Series 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 the 

products listed above. This proposed 

AD would require removing from 

service certain serial number (S/N) fan 

blades, part number (P/N) 338–002– 

114–0. This proposed AD was prompted 

by a normal quality sampling at CFM 

that isolated a production batch of fan 

blades with nonconforming geometry of 

mid-span shroud tips of the fan blades. 

This defect would cause the upper 

panel of the fan blade to be liberated 

following foreign object damage (FOD) 

or bird strike, and likely result in an 

inflight shutdown (IFSD). We are 

proposing this AD to prevent an IFSD of 

one or more engines following FOD or 

a bird strike. 

DATES: We must receive comments on 

this proposed AD by December 2, 2011. 

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. 

• 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 CFM 

International, Inc., Aviation Operations 

Center, 1 Neumann Way, M/D Room 

285, Cincinnati, OH 45125; 

International Phone: 1–513–552–3272; 

USA Phone: 877–432–3272; 

International Fax: 1–513–552–3329; 

USA Fax: 877–432–3329; e-mail: 

geae.aoc@ge.com; or CFM International 

SA, Customer Support Center, 

International Phone: 33 1 64 14 88 66; 

Fax: 33 1 64 79 85 55; e-mail: 

snecma.csc@snecma.fr. 


srobinson on DSK4SPTVN1PROD with PROPOSALS
64294 Federal Register / Vol. 76, No. 201 / Tuesday, October 18, 2011 / Proposed Rules 

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 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: 

Carlos Fernandes, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7189; fax: 781–238– 

7199; e-mail: carlos.fernandes@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposal. Send your comments to 

an address listed under the ADDRESSES

section. Include ‘‘Docket No. FAA– 

2011–0946; Directorate Identifier 2011– 

NE–02–AD’’ at the beginning of your 

comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD 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 proposed AD. 

Discussion 

We received a report that CFM 

International conducted a normal 

quality sampling on fan blades, P/N 

338–002–114–0, from a supplier. That 

quality investigation isolated a 

production batch of 706 blades that did 

not conform to the engineering drawings 

for the fan blades. The supplier had 

performed a hand-polishing operation 

that reduced the contact surface on 

adjacent blades. The reduced surface 

contact will likely create greater contact 

forces on the adjacent blades during a 

FOD or bird strike event. The increased 

forces would cause the upper panel of 

the fan blade to be liberated following 

FOD or bird strike and likely result in 

an IFSD. 

Relevant Service Information 

We reviewed CFM International 

Service Bulletin (SB) CFM56–5B S/B 

72–0777, Revision 1, dated April 11, 

2011. The SB describes procedures for 

replacing the suspect fan blades and 

contains an appendix that lists suspect 

fan blades, P/N 338–002–114–0, by 

blade S/N and known engine S/N. 

FAA’s Determination 

We are proposing this AD 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 proposed AD would require 

removing from service within 5,000 

flight hours (FHs) after the effective date 

of this proposed AD, any fan blade, 

P/N 338–002–114–0, that has an S/N 

listed in CFM International SB CFM56– 

5B S/B 72–0777, Revision 1, dated April 

11, 2011. After the effective date of this 

proposed AD, it would also prohibit 

installing any fan blade, P/N 338–002– 

114–0, that has an S/N listed in 

Appendix A of CFM International SB 

CFM56–5B S/B 72–0777, Revision 1, 

dated April 11, 2011. 

Differences Between the Proposed AD 

and the Service Information 

CFM International SB CFM56–5B S/B 

72–0777, Revision 1, dated April 11, 

2011, requires replacing suspect fan 

blades within 1,600 FHs on airplanes 

with suspected blades on both engines 

and within 5,000 FHs on airplanes with 

suspected blades on one engine. This 

proposed AD would require removing 

from service suspect blades on any 

engine within 5,000 FHs based on risk 

analysis. 

Costs of Compliance 

We estimate that this proposed AD 

would affect 16 engines installed on 

airplanes of U.S. registry. We also 

estimate that it would take about 6 

work-hours per engine to perform the 

required actions and that the average 

labor rate is $85 per work-hour. 

Required parts would cost about 

$47,830 per engine. Based on these 

figures, we estimate the total cost of this 

proposed AD to U.S. operators to be 

$773,440. 

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 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, 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): 

CFM International S.A.: Docket No. FAA– 

2011–0946; Directorate Identifier 2011– 

NE–02–AD. 


srobinson on DSK4SPTVN1PROD with PROPOSALS
Federal Register / Vol. 76, No. 201 / Tuesday, October 18, 2011 / Proposed Rules 64295 

Comments Due Date 

(a) We must receive comments by 

December 2, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to CFM International, 

S.A. CFM56–5B1/3, CFM56–5B2/3, CFM56– 

5B3/3, CFM56–5B4/3, CFM56–5B5/3, 

CFM56–5B6/3, CFM56–5B7/3, CFM56–5B8/ 

3, CFM56–5B9/3, CFM56–5B3/3B1, and 

CFM56–5B4/3B1 engines equipped with fan 

blades P/N 338–002–114–0 that have a serial 

number (S/N) listed in Appendix A of CFM 

International Service Bulletin (SB) CFM56– 

5B S/B 72–0777, Revision 1, dated April 11, 

2011. 

Unsafe Condition 

(d) This AD was prompted by a normal 

quality sampling at CFM that isolated a 

production batch of fan blades with 

nonconforming geometry of mid-span shroud 

tips of the fan blades. This defect would 

cause the upper panel of the fan blade to be 

liberated following foreign object damage 

(FOD) or a bird strike and likely result in an 

inflight shutdown (IFSD). We are proposing 

this AD to prevent an IFSD of one or more 

engines following FOD or a bird strike. 

Compliance 

(e) Comply with this AD within the 

compliance times specified, unless already 

done. 

Remove Fan Blades From Service 

(f) For engines that have fan blades, P/N 

338–002–114–0 with S/Ns listed in 

Appendix A of CFM International SB 

CFM56–5B S/B 72–0777, Revision 1, dated 

April 11, 2011, remove the fan blade from 

service within 5,000 flight hours after the 

effective date of this AD. 

Installation Prohibition 

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

not install any fan blade, P/N 338–002–114– 

0 that has an S/N listed in Appendix A of 

CFM International SB CFM56–5B S/B 72– 

0777, Revision 1, dated April 11, 2011, onto 

any engine. 

Alternative Methods of Compliance 

(AMOCs) 

(h) The Manager, Engine Certification 

Office, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. 

Related Information 

(i) For more information about this AD, 

contact Carlos Fernandes, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; phone: 781–238–7189; fax: 781–238– 

7199; e-mail: carlos.fernandes@faa.gov. 

(j) For service information identified in this 

AD, contact CFM International, Inc., Aviation 

Operations Center, 1 Neumann Way, M/D 

Room 285, Cincinnati, OH 45125; 

International Phone: 1–513–552–3272; USA 

Phone: 877–432–3272; International Fax: 1– 

513–552–3329; USA Fax: 877–432–3329; email: geae.aoc@ge.com; or CFM International 

SA, Customer Support Center, International 

Phone: 33 1 64 14 88 66; Fax: 33 1 64 79 85 

55; e-mail: snecma.csc@snecma.fr. 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. 

Issued in Burlington, Massachusetts on 

October 6, 2011. 

Peter A. White, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–26823 Filed 10–17–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2011–1057; Airspace 

Docket No. 11–AEA–21] 

Proposed Amendment of Class E 

Airspace; Huntington, WV 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

amend Class E Airspace at Huntington, 

WV, as the Huntt Non-Directional 

Beacon (NDB) has been 

decommissioned and new Standard 

Instrument Approach Procedures 

(SIAPs) have been developed at TriState/Milton J Ferguson Field Airport. 

This action would enhance the safety 

and airspace management of Instrument 

Flight Rules (IFR) operations at the 

airport. This action also would update 

the geographic coordinates of the 

airport. 

DATES: Comments must be received on 

or before December 2, 2011. 

ADDRESSES: Send comments on this rule 

to: U.S. Department of Transportation, 

Docket Operations, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue, SE., Washington, 

DC 20590–0001; Telephone: 1–800– 

647–5527; Fax: 202–493–2251. You 

must identify the Docket Number FAA– 

2011–1057; Airspace Docket No. 11– 

AEA–21, at the beginning of your 

comments. You may also submit and 

review received comments through the 

Internet at 

http://www.regulations.gov. 

FOR FURTHER INFORMATION CONTACT: John 

Fornito, Operations Support Group, 

Eastern Service Center, Federal Aviation 

Administration, P.O. Box 20636, 

Atlanta, Georgia 30320; telephone (404) 

305–6364. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

Interested persons are invited to 

comment on this rule 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 (FAA Docket No. FAA– 

2011–1057; Airspace Docket No. 11– 

AEA–21) and be submitted in triplicate 

to the Docket Management System (see 

ADDRESSES section for address and 

phone number). You may also submit 

comments through the Internet at 

http://www.regulations.gov. 

Persons wishing the FAA to 

acknowledge receipt of their comments 

on this action must submit with those 

comments a self-addressed stamped 

postcard on which the following 

statement is made: ‘‘Comments to 

Docket No. FAA–2011–1057; Airspace 

Docket No. 11–AEA–21.’’ The postcard 

will be date/time stamped and returned 

to the commenter. 

All communications received before 

the specified closing date for comments 

will be considered before taking action 

on the proposed rule. The proposal 

contained in this notice may be changed 

in light of the comments received. A 

report summarizing each substantive 

public contact with FAA personnel 

concerned with this rulemaking will be 

filed in the docket. 

Availability of NPRMs 

An electronic copy of this document 

may be downloaded from and 

comments submitted through http:// 

www.regulations.gov. Recently 

published rulemaking documents can 

also be accessed through the FAA’s Web 

page at http://www.faa.gov/ 

airports_airtraffic/air_traffic/ 

publications/airspace_amendments/. 

You may review the public docket 

containing the proposal, any comments 

received, and any final disposition in 

person in the Dockets Office (see the 

ADDRESSES section for address and 

phone number) between 9 a.m. and 

5 p.m., Monday through Friday, except 

Federal Holidays. An informal docket 

may also be examined during normal 

business hours at the office of the 

Eastern Service Center, Federal Aviation 


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