73268 Federal Register / Vol. 77, No. 237 / Monday, December 10, 2012 / Rules and Regulations 

(2) For operations conducted under a 14 

CFR part 119 operating certificate or under 

14 CFR part 91, subpart K, we suggest that 

you notify your principal inspector, or 

lacking a principal inspector, the manager of 

the local flight standards district office or 

certificate holding district office before 

operating any aircraft complying with this 

AD through an AMOC. 

(h) Additional Information 

Erickson Air-Crane Service Bulletin No. 

64F General-3, Revision C, dated December 

12, 2007, which is not incorporated by 

reference, contains additional information 

about the subject of this AD. For this service 

information, contact Erickson Air-Crane 

Incorporated, ATTN: Chris Erickson/ 

Compliance Officer, 3100 Willow Springs 

Rd., P.O. Box 3247, Central Point, OR 97502; 

telephone (541) 664–5544; fax (541) 664– 

2312; email cerickson@ericksonaircrane.com. 

You may also review this service information 

at the FAA, Office of the Regional Counsel, 

Southwest Region, 2601 Meacham Blvd., 

Room 663, Fort Worth, Texas 76137. 

(i) Subject 

Joint Aircraft Service Component (JASC) 

Code: 5302, Rotorcraft Tail Boom. 

(j) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Erickson Air-Crane Incorporated Service 

Bulletin No. 64B20–6, Revision A, dated 

December 12, 2007. 

(ii) Reserved. 

(3) For Erickson Air-Crane Incorporated 

service information identified in this AD, 

contact Erickson Air-Crane Incorporated, 

ATTN: Chris Erickson/Compliance Officer, 

3100 Willow Springs Rd., P.O. Box 3247, 

Central Point, OR 97502; telephone (541) 

664–5544; fax (541) 664–2312; email 

cerickson@ericksonaircrane.com. 

(4) You may view this service information 

at FAA, Office of the Regional Counsel, 

Southwest Region, 2601 Meacham Blvd., 

Room 663, Fort Worth, Texas 76137. For 

information on the availability of this 

material at the FAA, call (817) 222–5110. 

(5) You may view this 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/cfr/ibrlocations.html. 

Issued in Fort Worth, Texas, on November 

13, 2012. 

Kim Smith, 

Directorate Manager, Rotorcraft Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–28434 Filed 12–7–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1117; Directorate 

Identifier 2012–NE–25–AD; Amendment 39– 

17275; AD 2012–24–05] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

plc Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Rolls-Royce plc (RR) RB211-Trent 900 

series turbofan engines. This AD 

requires inspection of the low pressure 

turbine (LPT) bearing housing end cover 

assembly in certain engines and, if 

necessary, its replacement. This AD was 

prompted by a Trent 900 engine 

experiencing a high intermediate 

pressure vibration fault, along with 

other fluctuating engine parameters, 

while in flight. We are issuing this AD 

to prevent fracture of the oil transfer 

tube, which could result in uncontained 

failure of the engine and damage to the 

airplane. 

DATES: This AD becomes effective 

December 26, 2012. 

We must receive comments on this 

AD by January 24, 2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of December 26, 2012. 

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. 

For service information identified in 

this AD, contact Rolls-Royce plc, 

Corporate Communications, P.O. Box 

31, Derby, England, DE248BJ; phone: 

011–44–1332–242424; fax: 011–44– 

1332–245418 or email from http:// 

www.rolls-royce.com/contact/ 

civil_team.jsp, or download the 

publication from https:// 

www.aeromanager.com. You may view 

this 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. 

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 (phone: 

(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 & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7143; fax: 781–238– 

7199; email: alan.strom@faa.gov. 

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 AD No. 2012– 

0145, dated August 6, 2012 (referred to 

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

unsafe condition for the specified 

products. The MCAI states: 

During a revenue service flight, a Trent 900 

engine experienced a high Intermediate 

Pressure (IP/N2) vibration fault along with 

several other fluctuating engine parameters, 

including Low Pressure (LP/N1) faults. The 

flight crew decided to throttle back the 

engine to idle and performed an air turn 

back. The other engines continued to operate 

normally and an uneventful landing was 

made. 

The results of an initial investigation 

revealed that the LP system was seized. 

Removal of the Low Pressure Turbine (LPT) 

bearing housing end cover revealed that the 

oil transfer tube assembly had fractured 

because the spherical seat between the oil 

transfer tube and the end cover was missing 

(not installed). 

This non-conformity caused the fracture of 

the oil transfer tube, leading to reduced oil 

flow and subsequent damage to the LP and 

IP bearings. Rolls-Royce has identified that 

other Trent 900 engines could potentially be 

affected. 

The in-service event engine was 

assembled at the factory by RR. After the 

in-service event, RR inspected all LPT 

bearing housing end cover assemblies 


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Federal Register / Vol. 77, No. 237 / Monday, December 10, 2012 / Rules and Regulations 73269 

they had assembled and found one other 

assembly with a missing spherical seat. 

RR estimates that up to 200 LPT bearing 

housing end cover assemblies 

assembled using this procedure may 

have been built without the spherical 

seat. We are issuing this AD to prevent 

fracture of the oil transfer tube, which 

could result in uncontained failure of 

the engine and damage to the airplane. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

Rolls-Royce has issued Alert NonModification Service Bulletin Alert 

(NMSB) RB.211–72–AH051, dated 

August 3, 2012, or Revision 1, dated 

September 11, 2012, and NMSB 

RB.211–72–H056, dated August 3, 2012, 

or Revision 1, dated September 11, 

2012. 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 United Kingdom and is approved for 

operation in the United States. Pursuant 

to our bilateral agreement with the 

European Community, EASA has 

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. 

FAA’s Determination of the Effective 

Date 

An unsafe condition exists that 

requires the immediate adoption of this 

AD. The FAA has found that notice and 

comment prior to adoption of this rule 

is unnecessary because no engines are 

used on U.S. registered airplanes. 

Therefore, we find that good cause 

exists for making this amendment 

effective in less than 30 days. 

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–2012–1117; 

Directorate Identifier 2012–NE–25–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: 

2012–24–05 Rolls-Royce plc: Amendment 

39–17275; Docket No. FAA–2012–1117; 

Directorate Identifier 2012–NE–25–AD. 

(a) Effective Date 

This airworthiness directive (AD) becomes 

effective December 26, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Rolls-Royce plc (RR) 

RB211-Trent 970–84 and 972–84 series 

turbofan engines, all serial numbers. 

(d) Reason 

This AD was prompted by a Trent 900 

engine experiencing a high intermediate 

pressure vibration fault, along with other 

fluctuating engine parameters, while in 

flight. We are issuing this AD to prevent 

fracture of the oil transfer tube, which could 

result in uncontained failure of the engine 

and damage to the airplane. 

(e) Actions and Compliance 

Before further flight, unless already done, 

do the following: 

(1) Use paragraph 1.A. of RR Alert NonModification Service Bulletin (NMSB) 

RB.211–72–AH051, dated August 3, 2012, or 

Revision 1, dated September 11, 2012, and 

RR NMSB RB.211–72–H056, dated August 3, 

2012, or Revision 1, dated September 11, 

2012, to determine which engine serial 

numbers to inspect. 

(2) Inspect the LPT bearing housing end 

cover assembly for the presence of a 

spherical seat, P/N CU38971. For guidance 

on performing the inspection, see paragraphs 

3.A.(5) through 3.A.(8) of the SBs listed in 

paragraph (e)(1) of this AD. 

(3) If, during the inspection required by 

paragraph (e)(2) of this AD, you find that 

spherical seat, P/N CU38971, is missing, 

replace the LPT bearing housing end cover 

assembly, P/N FW22780, with a part eligible 

for installation. 


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73270 Federal Register / Vol. 77, No. 237 / Monday, December 10, 2012 / Rules and Regulations 

(f) Installation Prohibition 

After the effective date of this AD: 

(1) Do not approve for return to service any 

airplane with an engine, affected by this AD, 

installed, unless the engine has passed the 

inspection required by paragraph (e)(2) of 

this AD. 

(2) Do not install an LPT bearing housing 

end cover assembly, P/N FW22780, onto any 

engine required to be inspected by this AD, 

unless the LPT bearing housing end cover 

assembly was inspected as required by this 

AD. 

(g) Credit for Previous Actions 

If you accomplished the actions required 

by paragraph (e) of this AD before the 

effective date of this AD using RR Technical 

Variance (TV) 125436, issue 2, dated July 27, 

2012, you met the requirements of paragraph 

(e) of this AD. 

(h) 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. 

(i) Related Information 

(1) For more information about this AD, 

contact Alan Strom, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7143; fax: 781–238–7199; 

email: alan.strom@faa.gov. 

(2) Refer to European Aviation Safety 

Agency Airworthiness Directive 2012–0145, 

dated August 6, 2012, for related information. 

(j) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the following service information 

under 5 U.S.C. 552(a) and 1 CFR part 51. 

(2) You must use the following service 

information to do the actions required by this 

AD, unless the AD specifies otherwise: 

(i) Rolls-Royce (RR) Alert NonModification Service Bulletin (NMSB) 

RB.211–72–AH051, dated August 3, 2012. 

(ii) RR Alert NMSB RB.211–72–AH051, 

Revision 1, dated September 11, 2012. 

(iii) RR NMSB RB.211–72–H056, dated 

August 3, 2012. 

(iv) RR NMSB RB.211–72–H056, Revision 

1, dated September 11, 2012. 

(3) For service information identified in 

this AD, contact Rolls-Royce plc, Corporate 

Communications, P.O. Box 31, Derby, 

England, DE248BJ; phone: 011–44–1332– 

242424; fax: 011–44–1332–245418, email: 

http://www.rolls-royce.com/contact/ 

civil_team.jsp, or download the publication 

from https://www.aeromanager.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. 

(5) You may view this service information 

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 

November 26, 2012. 

Colleen M. D’Alessandro, 

Assistant Manager, Engine & Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–29489 Filed 12–7–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0590; Directorate 

Identifier 2011–NM–112–AD; Amendment 

39–17265; AD 2012–23–09] 

RIN 2120–AA64 

Airworthiness Directives; Embraer S.A. 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are superseding an 

existing airworthiness directive (AD) for 

all Embraer S.A. Model ERJ 190–100 

STD, –100 LR, –100 IGW, –200 STD, 

–200 LR, and –200 IGW airplanes. That 

AD currently requires revising the 

maintenance program to incorporate 

modifications in the Airworthiness 

Limitation Section (ALS) of the 

EMBRAER ERJ 190 Maintenance Review 

Board Report (MRBR). This new AD 

requires revising the maintenance 

program to incorporate modifications in 

the ALS of the EMBRAER ERJ 190 

MRBR to include new inspection tasks 

and their respective thresholds and 

intervals. This AD was prompted by 

issuance of new inspection tasks and 

their respective thresholds and 

intervals. We are issuing this AD since 

failure to inspect these structural 

components according to the new ALS 

tasks, thresholds, and intervals could 

prevent a timely detection of fatigue 

cracking, which if not properly 

addressed, could result in reduced 

structural integrity of the airplane. 

DATES: This AD becomes effective 

January 14, 2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of January 14, 2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of July 6, 2010 (75 FR 30277, June 1, 

2010). 

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: 

Cindy Ashforth, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; telephone (425) 227–2768; 

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 June 6, 2012 (77 FR 33334), 

and proposed to supersede AD 2010– 

11–14, Amendment 39–16319 (75 FR 

30277, June 1, 2010). That NPRM 

proposed to correct an unsafe condition 

for the specified products. The MCAI 

states: 

During the airplane full scale fatigue test, 

cracks were found in some structural 

components of the airplane. Analysis of these 

cracks resulted in modifications on the 

Airworthiness Limitation Section (ALS) of 

Embraer ERJ 190 Maintenance Review Board 

Report (MRBR), to include new inspections 

tasks and its respective thresholds and 

intervals. 

Failure to inspect these structural 

components, according to the new tasks, 

thresholds and intervals, could prevent a 

timely detection of fatigue cracking. These 

cracks, if not properly addressed, could 

adversely affect the structural integrity of the 

airplane. 

Since this condition may occur in other 

airplanes of the same type and affects flight 

safety, a corrective action is required. Thus, 

sufficient reason exists to request compliance 

with this [Ageˆncia Nacional de Aviac ̧a ̃o Civil 

(ANAC)] AD in the indicated time limit. 

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 

have considered the comments received. 

Request To Incorporate New and 

Revised Structural Airworthiness 

Limitations 

Embraer requested that we include 

EMBRAER Temporary Revision (TR) 5– 

5, dated May 24, 2012; and EMBRAER 

TR 5–7, dated August 12, 2012; to 

Appendix A, Part 2, Airworthiness 

Limitation Inspections (ALI)— 

Structures, of the EMBRAER 190 MRBR, 

MRB–1928, in the operators’ 


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