This section of the FEDERAL REGISTER

contains regulatory documents having general

applicability and legal effect, most of which

are keyed to and codified in the Code of

Federal Regulations, which is published under

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REGISTER issue of each week.

Rules and Regulations Federal Register

40217 

Vol. 76, No. 131 

Friday, July 8, 2011 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0624; Directorate 

Identifier 2010–NE–11–AD; Amendment 39– 

16724; AD 2011–13–01] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

plc (RR) RB211–524 Series Turbofan 

Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above. This AD results 

from mandatory continuing 

airworthiness information (MCAI) 

issued 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: 

An investigation into the loss of a TRU 

during landing has revealed that this incident 

was preceded by the detachment of the TRUs 

fixed structure front ring rivet lines on the 

rear flange. It was concluded that the loss of 

rivet lines was directly associated with a 

previous translating cowl gearbox stubshaft 

fracture and the subsequent repair of the 

fixed structure to Engine Manual repair No. 

FRS5887. This repair instructs the 

replacement of the damaged section of the 

structure but does not require the rivets 

adjacent to the repair to be replaced although 

latest analysis has shown that the rivets may 

have weakened as a result of a translating 

cowl gearbox stubshaft failure. 

We are issuing this AD to prevent 

failure of the attachment rivets resulting 

in loss of engine structural integrity, 

which may result in release of the thrust 

reverser unit from the engine. 

DATES: This AD becomes effective 

August 12, 2011. 

We must receive comments on this 

AD by August 8, 2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of August 12, 2011. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov and follow 

the instructions for sending your 

comments electronically. 

• Mail: 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. 

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 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. 

FOR FURTHER INFORMATION CONTACT: 

Alan Strom, Aerospace Engineer, Engine 

Certification Office, FAA, Engine and 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

e-mail: alan.strom@faa.gov; telephone 

(781) 238–7143; fax (781) 238–7199. 

SUPPLEMENTARY INFORMATION: 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA 

Airworthiness Directive 2009–0253, 

dated November 30, 2009 (referred to 

after this as ‘‘the MCAI’’), to correct an 

unsafe condition for the specified 

products. The MCAI states: 

An investigation into the loss of a 

TRU during landing has revealed that 

this incident was preceded by the 

detachment of the TRUs fixed structure 

front ring rivet lines on the rear flange. 

It was concluded that the loss of rivet 

lines was directly associated with a 

previous translating cowl gearbox 

stubshaft fracture and the subsequent 

repair of the fixed structure to Engine 

Manual repair No. FRS5887. This repair 

instructs the replacement of the 

damaged section of the structure but 

does not require the rivets adjacent to 

the repair to be replaced although latest 

analysis has shown that the rivets may 

have weakened as a result of a 

translating cowl gearbox stubshaft 

failure. 

You may obtain further information 

by examining the MCAI in the AD 

docket. 

Relevant Service Information 

Rolls-Royce has issued RR Alert 

Service Bulletin RB.211–78–AG084, 

Revision 5, dated February 4, 2011. The 

actions described in this service 

information are intended to correct the 

unsafe condition identified in the 

MCAI. 

FAA’s Determination and Requirements 

of This AD 

This product has been approved by 

the aviation authority of the United 

Kingdom, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the United 

Kingdom, they have notified us of the 

unsafe condition described in the MCAI 

and service information referenced 

above. We are issuing this AD because 

we evaluated all information provided 

by EASA and determined the unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Differences Between the AD and the 

MCAI or Service Information 

EASA AD 2009–0253, dated 

November 30, 2009, requires the 

following compliance times: 

For engines on which the thrust 

reverser unit (TRU) was previously 

repaired using either engine manual 

repair No. FRS4976 or engine manual 

repair No. FRS5887 and FRS6669 as a 

result of a translating cowl gearbox 

stubshaft failure, the MCAI requires 

compliance before March 31, 2010. This 

AD requires compliance within 215 

cycles-in-service (CIS) after the effective 

date of this AD. 

For engines on which the TRU was 

previously repaired using engine 

manual repair No. FRS5887 only, the 


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40218 Federal Register / Vol. 76, No. 131 / Friday, July 8, 2011 / Rules and Regulations 

MCAI requires compliance before 

December 31, 2012. This AD requires 

compliance within 2,225 CIS after the 

effective date of this AD. 

FAA’s Determination of the Effective 

Date 

Since no domestic operators use this 

product, notice and opportunity for 

public comment before issuing this AD 

are unnecessary. Therefore, we are 

adopting this regulation immediately. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not precede it by notice and 

opportunity for public comment. We 

invite you to send any written relevant 

data, views, or arguments about this AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include ‘‘Docket No. FAA–2011–0624; 

Directorate Identifier 2010–NE–11–AD’’ 

at the beginning of your comments. We 

specifically invite comments on the 

overall regulatory, economic, 

environmental, and energy aspects of 

this AD. We will consider all comments 

received by the closing date and may 

amend this 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 with FAA 

personnel concerning this 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). 

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 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. 

For the reasons discussed above, I 

certify 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. 

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: 

2011–13–01 Rolls-Royce plc (RR): 

Amendment 39–16724; Docket No. 

FAA–2011–0624; Directorate Identifier 

2010–NE–11–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective August 12, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to RB211–524D4–19, 

–524D4–B–19, –524D4–39, –524D4–B–39, 

–524D4X–19, –524D4X–B–19, –524H–36, 

–524H2–19, –524H–T–36, –524H2–T–19, 

–524G2–19, –524G3–19, –524G2–T–19, and 

–524G3–T–19 engines with thrust reverser 

units (TRUs) that have a part number (P/N) 

specified in paragraph 1.A. of RR Alert 

Service Bulletin (ASB) RB.211–78–AG084, 

Revision 5, dated February 4, 2011, installed. 

These engines are installed on, but not 

limited to, Boeing 747 series and 767 series 

airplanes. 

Reason 

(d) The EASA AD 2009–0253, dated 

November 30, 2009, states the following: 

An investigation into the loss of a TRU 

during landing has revealed that this incident 

was preceded by the detachment of the TRUs 

fixed structure front ring rivet lines on the 

rear flange. It was concluded that the loss of 

rivet lines was directly associated with a 

previous translating cowl gearbox stubshaft 

fracture and the subsequent repair of the 

fixed structure to Engine Manual repair No. 

FRS5887. This repair instructs the 

replacement of the damaged section of the 

structure but does not require the rivets 

adjacent to the repair to be replaced although 

latest analysis has shown that the rivets may 

have weakened as a result of a translating 

cowl gearbox stubshaft failure. 

We are issuing this AD to prevent failure 

of the attachment rivets resulting in loss of 

engine structural integrity, which may result 

in release of the thrust reverser unit from the 

engine. 

(e) If no repairs were performed as a result 

of a stubshaft failure, no further action is 

necessary. 

Actions and Compliance 

(f) Unless already done, do the following 

actions: 

(1) If the TRU has previously had engine 

manual repair No. FRS5887 and either engine 

manual repair No. FRS4976 or engine manual 

repair No. FRS6669 as a result of a translating 

cowl gearbox stubshaft failure, then perform 

the actions specified in Section 3. 

Accomplishment Instructions of RR ASB 

RB.211–78–AG084, Revision 5, dated 

February 4, 2011, within 215 cycles-inservice (CIS) after the effective date of this 

AD. 

(2) If the TRU has previously only had 

engine manual repair No. FRS5887 as a result 

of a translating cowl gearbox stubshaft 

failure, then perform the actions specified in 

Section 3. Accomplishment Instructions of 

RR ASB RB.211–78–AG084, Revision 5, 

dated February 4, 2011, within 2,225 CIS 

after the effective date of this AD. 

Previous Credit 

(g) Actions specified in paragraph (f)(1) 

and (f)(2) of this AD that are performed using 

RR ASB RB.211–78–AG084, Revision 4, 

dated December 22, 2009, RR ASB RB.211– 

78–AG084, Revision 3, dated November 6, 

2009, comply with paragraph (f)(1) and (f)(2) 

of this AD. 

FAA AD Differences 

(h) This AD differs from the Mandatory 

Continuing Airworthiness Information 

(MCAI) and/or service information as 

follows: 

(1) For engines on which the TRU was 

previously repaired using either engine 

manual repair No. FRS4976 or engine manual 


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Federal Register / Vol. 76, No. 131 / Friday, July 8, 2011 / Rules and Regulations 40219 

repair No. FRS6669 and engine manual 

repair FRS5887 as a result of a translating 

cowl gearbox stubshaft failure, the MCAI 

requires compliance before March 31, 2010. 

This AD requires compliance within 215 

cycles-in-service (CIS) after the effective date 

of this AD. 

(2) For engines on which the TRU was 

previously repaired using engine manual 

repair No. FRS5887 only, the MCAI requires 

compliance before December 31, 2012. This 

AD requires compliance within 2,225 CIS 

after the effective date of this AD. 

Other FAA AD Provisions 

Alternative Methods of Compliance 

(AMOCs) 

(i) 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 

(j) Refer to MCAI EASA Airworthiness 

Directive 2009–0253, dated November 30, 

2009, for related information. 

(k) Contact Alan Strom, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine and Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; e-mail: alan.strom@faa.gov; telephone 

(781) 238–7143; fax (781) 238–7199, for more 

information about this AD. 

Material Incorporated by Reference 

(l) You must use Rolls-Royce (RR) Alert 

Service Bulletin (ASB) RB.211–78–AG084, 

Revision 5, dated February 4, 2011, 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 Rolls-Royce plc, P.O. Box 

31, Derby, DE24 8BJ, United Kingdom; 

telephone 011 44 1332 242424; fax 011 44 

1332 249936. 

(3) You may review copies at the FAA, 

New England Region, 12 New England 

Executive Park, Burlington, MA; or 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/cfr/ibrlocations.html. 

Issued in Burlington, Massachusetts, on 

June 8, 2011. 

Peter A. White, 

Acting Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2011–16954 Filed 7–7–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0714; Directorate 

Identifier 2011–CE–024–AD; Amendment 

39–16744; AD 2011–14–09] 

RIN 2120–AA64 

Airworthiness Directives; Various 

Aircraft Equipped With Rotax Aircraft 

Engines 912 A Series Engine 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above that will 

supersede an existing AD. This AD 

results from mandatory continuing 

airworthiness information (MCAI) 

issued by the aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

During a production process review, a 

deviation in hardening of certain Part 

Number (P/N) 944072 washers has been 

detected, which exceeds the hardness of the 

design specification. 

The affected washers are part of the 

magneto ring flywheel hub installation and 

have been installed on a limited number of 

engines. No defective washers have been 

shipped as spare parts. 

This condition, if not corrected, could lead 

to cracks in the washer, loosening of the 

magneto flywheel hub and consequent 

ignition failure, possibly resulting in damage 

to the engine, in-flight engine shutdown and 

forced landing, damage to the aeroplane and 

injury to occupants. 

This AD requires actions that are 

intended to address the unsafe 

condition described in the MCAI. 

DATES: This AD becomes effective July 

25, 2011. 

As of June 16, 2011 (76 FR 31465, 

June 1, 2011), the Director of the Federal 

Register approved the incorporation by 

reference of Rotax Aircraft Engines 

Mandatory Service Bulletin SB–912–058 

SB–914–041, dated April 15, 2011, 

listed in this AD. 

We must receive comments on this 

AD by August 22, 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: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590, 

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

through Friday, except Federal holidays. 

For service information identified in 

this AD, contact BRP–Rotax GmbH & 

Co. KG, Welser Strasse 32, A–4623 

Gunskirchen, Austria; phone: +43 7246 

601 0; fax: +43 7246 601 9130; Internet: 

http://www.rotax-aircraft-engines.com. 

You may review copies of the 

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. 

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 AD, the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Office (telephone (800) 647– 

5527) is in the ADDRESSES section. 

Comments will be available in the AD 

docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Sarjapur Nagarajan, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 

Locust, Room 301, Kansas City, 

Missouri 64106; telephone: (816) 329– 

4145; fax: (816) 329–4090; e-mail: 

sarjapur.nagarajan@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

On May 10, 2011, we issued AD 

2011–11–03, Amendment 39–16702 (76 

FR 31465, June 1, 2011). That AD 

required actions intended to address an 

unsafe condition on the products listed 

above. 

Since we issued AD 2011–11–03, we 

determined that we inadvertently 

omitted certain airplanes equipped with 

Rotax 912 A series engines from the 

Applicability section. We have also 

determined that we included certain 

airplanes in the Applicability section 

that are not equipped with Rotax 912 A 

series engines. 

Relevant Service Information 

Rotax Aircraft Engines has issued 

Mandatory Service Bulletin SB–912–058 

and SB–914–041 (same document), 


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