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contains regulatory documents having general

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Rules and Regulations Federal Register

11535 

Vol. 80, No. 42 

Wednesday, March 4, 2015 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–0328; Directorate 

Identifier 2014–NE–07–AD; Amendment 39– 

18108; AD 2015–04–06] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

plc Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all 

Rolls-Royce plc (RR) RB211 Trent 875– 

17, 877–17, 884–17, 884B–17, 892–17, 

892B–17, and 895–17 turbofan engines. 

This AD requires modification of the 

engine by installing upgraded software 

in the electronic engine control (EEC) or 

by removing any EEC that incorporates 

a software standard prior to B7.2 and 

installing an EEC eligible for 

installation. This AD was prompted by 

failure of the intermediate pressure (IP) 

turbine disk drive arm and subsequent 

overspeed and burst of the IP turbine 

disk on an RR RB211 Trent turbofan 

engine. We are issuing this AD to 

prevent overspeed of the IP turbine disk, 

resulting in failure of the turbine blades 

or the IP turbine disk and subsequent 

uncontained release of the turbine disk 

and/or blades, which could lead to 

damage to the engine and damage to the 

airplane. 

DATES: This AD becomes effective April 

8, 2015. 

ADDRESSES: For service information 

identified in this AD, contact RollsRoyce plc, Corporate Communications, 

P.O. Box 31, Derby, England, DE24 8BJ; 

phone: 011–44–1332–242424; fax: 011– 

44–1332–249936; email: http://

www.rolls-royce.com/contact/civil_

team.jsp; Internet: https://

www.aeromanager.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– 

0328; 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 mandatory 

continuing airworthiness information 

(MCAI), the regulatory evaluation, any 

comments received, and other 

information. The address for the Docket 

Office (phone: 800–647–5527) is 

Document Management Facility, U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE., Washington, 

DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Wego Wang, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7134; fax: 781–238– 

7199; email: wego.wang@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to the specified products. The 

NPRM was published in the Federal 

Register on July 11, 2014 (79 FR 40018). 

The NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states: 

A Trent engine experienced an engine 

internal fire, caused by combustion of carbon 

deposits inside the high/intermediate (HP/IP) 

oil vent tubes. The consequent chain of 

events resulted in the failure of the IP turbine 

disk drive arm. Similar engine architecture 

exists on Trent 800 series engines. 

This condition, if not corrected, could lead 

to uncontained multiple turbine blade 

failures or an IP turbine disk burst, possibly 

resulting in damage to, and reduced control 

of, the aeroplane. 

Prompted by these findings, an 

Intermediate Pressure Turbine Overspeed 

System (IPTOS) protection scheme has been 

developed for Trent 800 engines installed on 

Boeing 777 aeroplanes. 

For the reasons described above, this AD 

requires introduction of the IPTOS protection 

function by installation of a new software 

standard (B7.2) in the engine electronic 

controller (EEC), which will protect against 

IP turbine overspeed when IP shaft failure is 

detected. 

Since we issued the NPRM (79 FR 

40018, July 11, 2014), we issued a 

supplemental NPRM (79 FR 70475, 

November 26, 2014) to amend the costs 

of compliance and to more clearly state 

certain compliance requirements. Since 

we issued the supplemental NPRM, we 

changed paragraph (e) of this AD for 

clarity. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. 

Request To Modify the Installation 

Prohibition Paragraph 

American Airlines (AA) requested 

that we modify the Installation 

Prohibition paragraph (f) to allow 

installation of an EEC with a software 

standard earlier than B7.2, and 

coincident on-wing upgrade of the 

software standard to B7.2 or later, but 

prohibit operation of an engine that 

incorporates a software standard earlier 

than B7.2. AA states that the EEC 

original equipment manufacturer does 

not update the software as part of a 

component shop visit. 

We agree. We modified the 

Installation Prohibition paragraph (f) to 

allow installation of an EEC with a 

software standard earlier than B7.2, but 

to prohibit operation of an engine with 

a software standard earlier than B7.2. 

Conclusion 

We reviewed the available data, 

including the comment received, and 

determined that air safety and the 

public interest require adopting this AD 

with the changes described previously. 

We determined that these changes will 

not increase the economic burden on 

any operator or increase the scope of 

this AD. 

Costs of Compliance 

We estimate that this AD affects about 

140 engines installed on airplanes of 

U.S. registry. We also estimate that it 

would take about 2 hours per engine to 


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11536 Federal Register / Vol. 80, No. 42 / Wednesday, March 4, 2015 / Rules and Regulations 

comply with this AD. The average labor 

rate is $85 per hour. Based on these 

figures, we estimate the cost of this AD 

on U.S. operators to be $23,800. 

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), 

(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. 

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 airworthiness 

directive (AD): 

2015–04–06 Rolls-Royce plc Turbofan 

Engines: Amendment 39–18108; Docket 

No. FAA–2014–0328; Directorate 

Identifier 2014–NE–07–AD. 

(a) Effective Date 

This AD becomes effective April 8, 2015. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Rolls-Royce plc (RR) 

RB211 Trent 875–17, 877–17, 884–17, 884B– 

17, 892–17, 892B–17, and 895–17 turbofan 

engines. 

(d) Reason 

This AD was prompted by failure of the 

intermediate pressure (IP) turbine disk drive 

arm and subsequent overspeed and burst of 

the IP turbine disk on an RR RB211 Trent 

turbofan engine. We are issuing this AD to 

prevent overspeed of the IP turbine disk, 

resulting in failure of the turbine blades or 

the IP turbine disk and subsequent 

uncontained release of the turbine disk and/ 

or blades, which could lead to damage to the 

engine and damage to the airplane. 

(e) Actions and Compliance 

Twelve months after the effective date of 

this AD, do not operate any engine with an 

electronic engine control (EEC) software 

standard earlier than B7.2. 

(f) Installation Prohibition 

After removing any software standard 

earlier than B7.2 from an ECC on any engine, 

do not operate that engine with any software 

standard earlier than B7.2. 

(g) 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. You may email your 

request to: ANE-AD-AMOC@faa.gov. 

(h) Related Information 

(1) For more information about this AD, 

contact Wego Wang, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7134; fax: 781–238–7199; 

email: wego.wang@faa.gov. 

(2) Refer to MCAI European Aviation 

Safety Agency AD 2014–0051, dated March 

6, 2014, for more information. You may 

examine the MCAI in the AD docket on the 

Internet at http://www.regulations.gov/

#!documentDetail;D=FAA-2014-0328-0003. 

(3) RR Alert Service Bulletin No. RB.211– 

73–AH001, dated July 17, 2013, which is not 

incorporated by reference in this AD, can be 

obtained from Rolls-Royce plc, using the 

contact information in paragraph (h)(4) of 

this AD. 

(4) For service information identified in 

this AD, contact Rolls-Royce plc, Corporate 

Communications, P.O. Box 31, Derby, 

England, DE24 8BJ; phone: 011–44–1332– 

242424; fax: 011–44–1332–249936; email: 

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

team.jsp; or Internet: https://

www.aeromanager.com. 

(5) 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. 

(i) Material Incorporated by Reference 

None. 

Issued in Burlington, Massachusetts, on 

February 19, 2015. 

Colleen M. D’Alessandro, 

Assistant Directorate Manager, Engine & 

Propeller Directorate, Aircraft Certification 

Service. 

[FR Doc. 2015–04044 Filed 3–3–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 91 

[Docket No. FAA–2007–29305; Amdt. No. 

91–336A] 

RIN 2120–AI92 

Automatic Dependent SurveillanceBroadcast (ADS–B) Out Performance 

Requirements To Support Air Traffic 

Control (ATC) Service; Technical 

Amendment; Correction 

AGENCY: Federal Aviation 

Administration, DOT. 

ACTION: Final rule; correction of a 

technical amendment. 

SUMMARY: The FAA is correcting a final 

rule technical amendment published on 

February 9, 2015 (80 FR 6899). In that 

final rule, which became effective on 

the date of publication, the FAA 

corrected errors in regulatory provisions 

addressing Automatic Dependent 

Surveillance-Broadcast Out equipment 

and use. The FAA inadvertently listed 

an incorrect Amendment Number for 

that final rule. This document corrects 

that error. 

DATES: Effective: March 4, 2015. 

FOR FURTHER INFORMATION CONTACT: For 

technical questions concerning this 

action, contact Robert F. Nichols, Jr., 

Surveillance Services Group Manager, 

AJM–23, Air Traffic Organization, 


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