Federal Register / Vol. 79, No. 191 / Thursday, October 2, 2014 / Proposed Rules 59467 

intake ducting (including the area 

downstream of the filter) for paint adherence 

defects such as peeling, blistering, or 

bubbling following Alpha Aviation Service 

Bulletin (SB) No. AA–SB–71–007, Revision 

0, dated August 2014. 

(2) If any defects are found during the 

inspection required in paragraph (f)(1) of this 

AD, before further flight, replace the affected 

parts with airworthy parts following Alpha 

Aviation Service Bulletin No. AA–SB–71– 

007, Revision 0, dated August 2014. 

(3) As of the effective date of this AD, only 

install new unpainted steel assembly air 

intake boxes. 

(4) The replacement of defective parts is 

not a terminating action to the repetitive 

inspection of painted engine intake 

components required in paragraph (f)(1) of 

this AD. 

(g) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, Standards Office, 

FAA, has the authority to approve AMOCs 

for this AD, if requested using the procedures 

found in 14 CFR 39.19. Send information to 

ATTN: Karl Schletzbaum, Aerospace 

Engineer, FAA, Small Airplane Directorate, 

901 Locust, Room 301, Kansas City, Missouri 

64106; phone: (816) 329–4123; fax: (816) 

329–4090; email: karl.schletzbaum@faa.gov. 

Before using any approved AMOC on any 

airplane to which the AMOC applies, notify 

your appropriate principal inspector (PI) in 

the FAA Flight Standards District Office 

(FSDO), or lacking a PI, your local FSDO. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer or other source, use these 

actions if they are FAA-approved. Corrective 

actions are considered FAA-approved if they 

are approved by the State of Design Authority 

(or their delegated agent). You are required 

to assure the product is airworthy before it 

is returned to service. 

(h) Related Information 

Refer to MCAI Civil Aviation Authority 

(CAA) AD DCA/R2000/25A, dated August 28, 

2014, for related information. You may 

examine the MCAI on the Internet at 

http://www.regulations.gov by searching for 

and locating Docket No. FAA–2014–0759. 

For service information related to this AD, 

contact Alpha Aviation, 59 Hautapu Road, 

RD 1, Cambridge 3493, New Zealand; 

telephone: +64 7 827 0528; fax: +64 7 929 

2878; Internet: www.alphaaviation.co.nz. 

You may review this referenced service 

information at the FAA, Small Airplane 

Directorate, 901 Locust, Kansas City, 

Missouri 64106. For information on the 

availability of this material at the FAA, call 

(816) 329–4148. 

Issued in Kansas City, Missouri, on 

September 26, 2014. 

Kelly A. Broadway, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2014–23554 Filed 10–1–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–0521; Directorate 

Identifier 2014–NE–11–AD] 

RIN 2120–AA64 

Airworthiness Directives; CFM 

International S.A. 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 CFM 

International (CFM) S.A. CFM56–7B 

series turbofan engines. This proposed 

AD was prompted by a dual engine 

thrust instability event that resulted in 

the overspeed and in-flight shutdown 

(IFSD) of one engine. This proposed AD 

would require modification of the 

engine by removing full authority digital 

engine control (FADEC) software, 

version 7BV4 or earlier, installed in the 

electronic engine controls (EECs) on 

CFM56–7B engines. We are proposing 

this AD to prevent a thrust instability 

event, which could lead to overspeed 

and IFSD of one or more engines, loss 

of thrust control, damage to the engine, 

and damage to the airplane. 

DATES: We must receive comments on 

this proposed AD by December 1, 2014. 

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 AD, contact CFM International Inc., 

Aviation Operations Center, 1 Neumann 

Way, M/D Room 285, Cincinnati, OH 

45125; phone: 877–432–3272; fax: 877– 

432–3329; email: geae.aoc@ge.com. 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– 

0521; 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: 

Barbara Caufield, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7146; fax: 781–238– 

7199; email: barbara.caufield@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– 

2014–0521; Directorate Identifier 2014– 

NE–11–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 have received reports of dual 

engine thrust instability events on 

CFM56–7B turbofan engines that 

resulted in overspeed and IFSD of one 

engine. These resulted from water-borne 

fuel contamination of the fuel supply 

causing a lag in the response of the 

control valve in the fuel metering unit 

(FMU). CFM has improved its FADEC 

software to help prevent the lag in the 

response of the FMU control valve, 

thereby mitigating these thrust 

instability events. This condition, if not 

corrected, could lead to overspeed and 

IFSD of one or more engines, loss of 

thrust control, damage to the engine, 

and damage to the airplane. 


rmajette on DSK2VPTVN1PROD with RULES
59468 Federal Register / Vol. 79, No. 191 / Thursday, October 2, 2014 / Proposed Rules 

Relevant Service Information 

We reviewed CFM Service Bulletin 

(SB) No. CFM56–7B S/B 73–0203, dated 

June 9, 2014, and CFM SB No. CFM56– 

7B S/B 73–0204, dated June 9, 2014. 

The SBs describe procedures for the 

introduction of new FADEC software for 

the EECs. 

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 

modification of the engine by removing 

FADEC software, version 7BV4 or 

earlier, installed in the EECs on CFM56– 

7B engines. 

Costs of Compliance 

We estimate that this proposed AD 

would affect about 2,921 engines 

installed on airplanes of U.S. registry. 

We also estimate that it would take 

about 1 hour per product to comply 

with this proposed AD. The average 

labor rate is $85 per hour. Based on 

these figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$248,285. 

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 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. Amend § 39.13 by adding the 

following new airworthiness directive 

(AD): 

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

2014–0521; Directorate Identifier 2014– 

NE–11–AD. 

(a) Comments Due Date 

We must receive comments by December 1, 

2014. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all CFM International 

(CFM) S.A. CFM56–7B series turbofan 

engines. 

(d) Unsafe Condition 

This AD was prompted by a dual engine 

thrust instability event that resulted in the 

overspeed and in-flight shutdown (IFSD) of 

one engine. We are issuing this AD to prevent 

a thrust instability event, which could lead 

to overspeed and IFSD of one or more 

engines, loss of thrust control, damage to the 

engine, and damage to the airplane. 

(e) Compliance 

(1) Comply with this AD within the 

compliance times specified, unless already 

done. 

(2) Within 6 months after the effective date 

of this AD, modify the engine by removing 

full authority digital engine control (FADEC) 

software, version 7BV4 or earlier, installed in 

the electronic engine controls. 

(f) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Engine Certification Office, 

FAA, may approve AMOCs to this AD. Use 

the procedures found in 14 CFR 39.19 to 

make your request. 

(g) Related Information 

(1) For more information about this AD, 

contact Barbara Caufield, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; phone: 781–238–7751; fax: 781–238– 

7199; email: barbara.caufield@faa.gov. 

(2) CFM Service Bulletin (SB) No. CFM56– 

7B S/B 73–0203, dated June 9, 2014, and 

CFM No. SB CFM56–7B S/B 73–0204, dated 

June 9, 2014, which are not incorporated by 

reference in this proposed AD, can be 

obtained from CFM using the contact 

information in paragraph (g)(3) of this 

proposed AD. 

(3) 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; 

phone: 877–432–3272; fax: 877–432–3329; 

email: geae.aoc@ge.com. 

(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 

September 25, 2014. 

Ann C. Mollica, 

Acting Directorate Manager, Engine & 

Propeller Directorate, Aircraft Certification 

Service. 

[FR Doc. 2014–23563 Filed 10–1–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–0656; Directorate 

Identifier 2013–NM–224–AD] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Proposed rule; rescission. 

SUMMARY: We propose to rescind 

Airworthiness Directive (AD) 2010–08– 

08, which applies to certain Airbus 

Model A330–243, –341, –342, and –343 

airplanes. AD 2010–08–08 requires 

deactivating the water scavenge 


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