24356 Federal Register / Vol. 76, No. 84 / Monday, May 2, 2011 / Rules and Regulations 

Issued in Renton, Washington, on April 12, 

2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–9674 Filed 4–29–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0035; Directorate 

Identifier 2010–NM–110–AD; Amendment 

39–16672; AD 2011–09–10] 

RIN 2120–AA64 

Airworthiness Directives; Airbus Model 

A300 B4–601, B4–603, B4–605R, C4– 

605R Variant F, and F4–605R 

Airplanes, and A310–204 and –304 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above. This AD results 

from mandatory continuing 

airworthiness information (MCAI) 

originated by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

Airbus, in the frame of the Extended 

Service Goal (ESG) exercise, has 

demonstrated by post-certification analysis 

that, among the types of yokes in service, one 

component on the CF6–80C2 forward engine 

mounts (skinny cast yoke) does not meet the 

Design Service Goal (DSG) requirements. 

This condition, if not corrected, could result 

in a deterioration of the structural integrity 

of the forward engine mount. 

* * * * * 

The unsafe condition is possible 

separation of the engine from the engine 

mount during flight. We are issuing this 

AD to require actions to correct the 

unsafe condition on these products. 

DATES: This AD becomes effective June 

6, 2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of June 6, 2011. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.gov or in person at the 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue, SE., 

Washington, DC. 

FOR FURTHER INFORMATION CONTACT: Dan 

Rodina, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–2125; fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM was published in the Federal 

Register on February 1, 2011 (76 FR 

5507). That NPRM proposed to correct 

an unsafe condition for the specified 

products. The MCAI states: 

Airbus, in the frame of the Extended Service 

Goal (ESG) exercise, has demonstrated by 

post-certification analysis that, among the 

types of yokes in service, one component on 

the CF6–80C2 forward engine mounts 

(skinny cast yoke) does not meet the Design 

Service Goal (DSG) requirements. 

This condition, if not corrected, could result 

in a deterioration of the structural integrity 

of the forward engine mount. 

For the reasons described above, this AD 

requires operators to [perform an inspection 

to determine the part number of the forward 

engine mount skinny cast yokes,] perform a 

one time [detailed] inspection [for rupture] of 

the forward engine mount skinny cast yokes 

Part Number (P/N) 9383M43G08, 

9383M43G09, 9383M43G10 and 

9383M43G11 of GE CF6–80C2 powered 

aeroplanes and to replace the affected skinny 

cast yokes with forged yokes. 

Upon replacement of the skinny cast yoke, 

the General Electric CF6–80C2 Service 

Bulletin (SB) 72–0222 [installation of a 

redesigned forward engine mount system] 

must be completed as a prerequisite. 

The unsafe condition is possible 

separation of the engine from the engine 

mount during flight. You may obtain 

further information by examining the 

MCAI in the AD docket. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comment received. 

FedEx supports the NPRM. 

Conclusion 

We reviewed the available data, 

including the comment received, and 

determined that air safety and the 

public interest require adopting the AD 

as proposed. 

Differences Between This AD and the 

MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have required different 

actions in this AD from those in the 

MCAI in order to follow our FAA 

policies. Any such differences are 

highlighted in a NOTE within the AD. 

Costs of Compliance 

We estimate that this AD will affect 

53 products of U.S. registry. We also 

estimate that it will take about 10 workhours per product to comply with the 

basic requirements of this AD. The 

average labor rate is $85 per work-hour. 

Based on these figures, we estimate the 

cost of this AD to the U.S. operators to 

be $45,050, or $850 per product. 

In addition, we estimate that any 

necessary follow-on actions would take 

about 608 work-hours and require parts 

costing $322,000, for a cost of $373,680 

per product. We have no way of 

determining the number of products 

that may need these actions. 

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 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will 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. 


jlentini on DSKJ8SOYB1PROD with RULES
Federal Register / Vol. 76, No. 84 / Monday, May 2, 2011 / Rules and Regulations 24357 

For the reasons discussed above, I 

certify that this 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. 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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this AD and placed it in the AD docket. 

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 the NPRM, the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Operations office (telephone 

(800) 647–5527) is in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after receipt. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 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 AD: 

2011–09–10 Airbus: Amendment 39–16672. 

Docket No. FAA–2011–0035; Directorate 

Identifier 2010–NM–110–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective June 6, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Airbus Model A300 

B4–601, B4–603, B4–605R, C4–605R Variant 

F, and F4–605R airplanes, and A310–204 and 

–304 airplanes; certificated in any category; 

powered by General Electric Model CF6– 

80C2 engines. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 71: Powerplant. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

Airbus, in the frame of the Extended Service 

Goal (ESG) exercise, has demonstrated by 

post-certification analysis that, among the 

types of yokes in service, one component on 

the CF6–80C2 forward engine mounts 

(skinny cast yoke) does not meet the Design 

Service Goal (DSG) requirements. 

This condition, if not corrected, could result 

in a deterioration of the structural integrity 

of the forward engine mount. 

* * * * * 

The unsafe condition is possible separation 

of the engine from the engine mount during 

flight. 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

Inspection and Corrective Actions 

(g) Within 400 flight cycles after the 

effective date of this AD, for each engine, 

inspect to determine the part number of the 

forward engine mounting yoke, in 

accordance with Airbus All Operators Telex 

A300–71A6029 or A310–71A2036, both 

dated March 30, 2010, as applicable. A 

review of airplane maintenance records is 

acceptable in lieu of this inspection if the 

part number of the yoke can be conclusively 

determined from that review. 

(1) If the inspection required in paragraph 

(g) of this AD finds any mounting yoke is a 

skinny cast yoke having part number (P/N) 

9383M43G08, 9383M43G09, 9383M43G10, or 

9383M43G11, do a detailed inspection of the 

yoke to determine if it is ruptured, in 

accordance with Airbus All Operators Telex 

A300–71A6029 or A310–71A2036, both 

dated March 30, 2010, as applicable. 

(i) If the mounting yoke is ruptured, before 

further flight, repair in accordance with a 

method approved by the FAA or the 

European Aviation Safety Agency (EASA) or 

its delegated agent. 

(ii) If the mounting yoke is not ruptured, 

within 7,000 flight cycles after the effective 

date of this AD replace the skinny cast yoke 

with a forged yoke, in accordance with 

Airbus All Operators Telex A300–71A6029 

or A310–71A2036, both dated March 30, 

2010, as applicable. 

(2) At the applicable time specified in 

paragraph (g)(2)(i) or (g)(2)(ii) of this AD, 

report to Airbus the findings of the 

inspection required by paragraph (g)(1) using 

Appendix 02 and Appendix 03, as 

applicable, of Airbus All Operators Telex 

A300–71A6029 or A310–71A2036, both 

dated March 30, 2010, as applicable. Send 

the report to Laure Dupland, SEEE3; 

Customer Services; telephone +33 (0)5 61 18 

20 24; fax +33 (0)5 61 93 36 14; e-mail 

laure.dupland@airbus.com. 

(i) If the inspection was done on or after 

the effective date of this AD: Submit the 

report within 30 days after the inspection. 

(ii) If the inspection was done before the 

effective date of this AD: Submit the report 

within 30 days after the effective date of this 

AD. 

(h) Prior to or concurrent with the actions 

required by paragraph (g)(1)(ii) of this AD, 

install a redesigned forward engine mount 

system in accordance with the 

Accomplishment Instructions of GE CF6– 

80C2 Service Bulletin 72–0222, Revision 4, 

dated February 29, 2000. 

(i) As of the effective date of this AD, do 

not install any forward engine mount skinny 

cast yoke having P/N 9383M43G08, 

9383M43G09, 9383M43G10, or 9383M43G11, 

on any airplane. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(j) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, Transport Airplane 

Directorate, FAA, has the authority to 

approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

In accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the International Branch, send it to Attn: 

Dan Rodina, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue, SW., Renton, Washington 98057– 

3356; telephone (425) 227–2125; fax (425) 

227–1149. Information may be e-mailed to: 9- 

ANM-116-AMOC-REQUESTS@faa.gov. 

Before using any approved AMOC, notify 

your appropriate principal inspector, or 

lacking a principal inspector, the manager of 

the local flight standards district office/ 

certificate holding district office. The AMOC 

approval letter must specifically reference 

this AD. 

(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. 

(3) Reporting Requirements: A federal 

agency may not conduct or sponsor, and a 

person is not required to respond to, nor 

shall a person be subject to a penalty for 

failure to comply with a collection of 

information subject to the requirements of 

the Paperwork Reduction Act unless that 

collection of information displays a current 

valid OMB Control Number. The OMB 

Control Number for this information 

collection is 2120–0056. Public reporting for 

this collection of information is estimated to 

be approximately 5 minutes per response, 

including the time for reviewing instructions, 

completing and reviewing the collection of 

information. All responses to this collection 

of information are mandatory. Comments 


jlentini on DSKJ8SOYB1PROD with RULES
24358 Federal Register / Vol. 76, No. 84 / Monday, May 2, 2011 / Rules and Regulations 

concerning the accuracy of this burden and 

suggestions for reducing the burden should 

be directed to the FAA at: 800 Independence 

Ave., SW., Washington, DC 20591, Attn: 

Information Collection Clearance Officer, 

AES–200. 

Related Information 

(k) Refer to MCAI European Aviation 

Safety Agency (EASA) Airworthiness 

Directive 2010–0066, dated April 21, 2010; 

and the service information identified in 

table 1 of this AD; for related information. 

TABLE 1—SERVICE INFORMATION

Service information Revision Date 

Airbus All Operators Telex A300–71A6029 ...................................................................... Original .......................................... March 30, 2010. 

Airbus All Operators Telex A310–71A2036 ...................................................................... Original .......................................... March 30, 2010. 

GE CF6–80C2 Service Bulletin 72–0222 ......................................................................... 4 .................................................... February 29, 2000. 

Material Incorporated by Reference 

(l) You must use the service information 

contained in table 2 of this AD, as applicable, 

to do the actions required by this AD, unless 

the AD specifies otherwise. 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(2) For service information identified in 

this AD, contact Airbus SAS—EAW 

(Airworthiness Office), 1 Rond Point Maurice 

Bellonte, 31707 Blagnac Cedex, France; 

telephone +33 5 61 93 36 96; fax +33 5 61 

93 44 51; e-mail: account.airwortheas@airbus.com; Internet http:// 

www.airbus.com. 

(3) You may review copies of the service 

information at the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue SW., Renton, 

Washington. For information on the 

availability of this material at the FAA, call 

425–227–1221. 

(4) You may also review copies of the 

service information that is incorporated by 

reference at the National Archives and 

Records Administration (NARA). For 

information on the availability of this 

material at NARA, call 202–741–6030, or go 

to: http://www.archives.gov/federal_register/

code_of_federal_regulations/ibr_

locations.html. 

TABLE 2—MATERIAL INCORPORATED BY REFERENCE

Service information Revision Date 

Airbus All Operators Telex A300–71A6029, including Appendices 01, 02, 03, and 04 .. Original .......................................... March 30, 2010. 

Airbus All Operators Telex A310–71A2036, including Appendices 01, 02, 03, and 04 .. Original .......................................... March 30, 2010. 

GE CF6–80C2 Service Bulletin 72–0222 ......................................................................... 4 .................................................... February 29, 2000. 

Issued in Renton, Washington, on April 13, 

2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–9678 Filed 4–29–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–1207; Directorate 

Identifier 2010–NM–140–AD; Amendment 

39–16680; AD 2011–09–18] 

RIN 2120–AA64 

Airworthiness Directives; DassaultAviation Model FALCON 7X Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above. This AD results 

from mandatory continuing 

airworthiness information (MCAI) 

originated by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

Following investigation of an in service 

event, it has been determined that in case a 

short circuit occurs on a weight-on-wheels 

(WOW) proximity sensor wiring, both circuit 

breakers that supply power to that wiring 

will trip, causing simultaneous de-power of 

all WOW proximity sensors of that part of the 

system. The loss of the corresponding WOW 

information would lead to untimely 

inhibition of warnings that could 

compromise the pilot capacity to react to 

abnormal or failure landing conditions. 

* * * * * 

We are issuing this AD to require 

actions to correct the unsafe condition 

on these products. 

DATES: This AD becomes effective June 

6, 2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of June 6, 2011. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.gov or in person at the 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue, SE., 

Washington, DC. 

FOR FURTHER INFORMATION CONTACT: Tom 

Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1137; fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM was published in the Federal 

Register on December 30, 2010 (75 FR 

82327). That NPRM proposed to correct 

an unsafe condition for the specified 

products. The MCAI states: 

Following investigation of an in service 

event, it has been determined that in case a 

short circuit occurs on a weight-on-wheels 

(WOW) proximity sensor wiring, both circuit 

breakers that supply power to that wiring 

will trip, causing simultaneous de-power of 

all WOW proximity sensors of that part of the 

system. The loss of the corresponding WOW 

information would lead to untimely 

inhibition of warnings that could 

compromise the pilot capacity to react to 

abnormal or failure landing conditions. 

This AD requires the modification of the 

WOW System to improve its robustness 

against short circuit of the proximity sensors 

wiring by adding dedicated fuses to each 


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