13714 Federal Register / Vol. 81, No. 50 / Tuesday, March 15, 2016 / Rules and Regulations 

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. 

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 

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 part 39 of the Federal 

Aviation Regulations (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 

removing airworthiness directive (AD) 

2015–04–03, Amendment 39–18105 (80 

FR 9380, February 23, 2015) (‘‘AD 2015– 

04–03’’), and adding the following new 

AD: 

2016–04–13 Rolls-Royce plc: Amendment 

39–18407; Docket No. FAA–2014–0561; 

Directorate Identifier 2014–NE–12–AD. 

(a) Effective Date 

This AD is effective April 19, 2016. 

(b) Affected ADs 

This AD supersedes AD 2015–04–03. 

(c) Applicability 

This AD applies to Rolls-Royce plc (RR) 

RB211 Trent 768–60, 772–60, and 772B–60 

turbofan engines, all serial numbers, except 

those engines: 

(1) That have had Modification 72–H754 

applied in production, or 

(2) that have been modified in accordance 

with RR Service Bulletin (SB) No. RB.211– 

72–H754, including the Supplement, 

Revision 1, dated July 29, 2015 or initial 

issue dated October 1, 2014; or 

(3) with sealing sleeve, part number (P/N) 

FW15003, with markings 102013, 112013, or 

102013L. 

(d) Unsafe Condition 

This AD was prompted by fractures of the 

high-pressure/intermediate pressure (HP/IP) 

turbine support internal oil feed tube. We are 

issuing this AD to prevent failure of the 

HP/IP turbine support internal oil feed tube, 

uncontained engine failure, and damage to 

the airplane. 

(e) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(1) If sealing sleeve, P/N FW15003, is 

installed without markings 102013, 112013, 

or 102013L, or if the markings cannot be 

sufficiently identified, then within 1,600 

flight cycles or 24 months after the effective 

date of this AD, whichever occurs first: 

(i) Remove the affected sealing sleeve, 

P/N FW15003, and replace it with a part 

eligible for installation. Use paragraph 

3.A.(4)(b) of RR Alert Non-Modification 

Service Bulletin No. RB.211–72–AJ035, 

Revision 2, dated August 10, 2015, to 

perform the part replacement, or, 

(ii) Remove the affected sealing sleeve, 

P/N FW15003, and the oil feed tube, P/N 

FW14193, and replace with parts eligible for 

installation. Use paragraph 3.B. or 3.C., as 

appropriate, of RR SB No. RB.211–72–H754, 

including the Supplement, Revision 1, dated 

July 29, 2015, to perform the parts 

replacement. 

(2) Reserved. 

(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. You may email your 

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

(g) Related Information 

(1) For more information about this 

AD, contact Philip Haberlen, Aerospace 

Engineer, Engine Certification Office, 

FAA, Engine & Propeller Directorate, 

1200 District Avenue, Burlington, MA 

01803; phone: 781–238–7770; fax: 781– 

238–7199; email: philip.haberlen@

faa.gov. 

(2) Refer to MCAI, European Aviation 

Safety Agency, AD 2015–0105R1, dated 

August 18, 2015, for more information. 

You may examine the MCAI in the AD 

docket on the Internet at http://www.

regulations.gov/#!documentDetail;D=

FAA-2014-0561-0003. 

(h) 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) Rolls-Royce plc (RR) Alert NonModification Service Bulletin No. 

RB.211–72–AJ035, Revision 2, dated 

August 10, 2015. 

(ii) RR Service Bulletin No. RB.211– 

72–H754, including the Supplement, 

Revision 1, dated July 29, 2015. 

(3) For RR service information 

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

P.O. Box 31, Derby, DE24 8BJ, United 

Kingdom; phone: 011–44–1332–242424; 

fax: 011–44–1332–249936; email: http:// 

www.rolls-royce.com/contact/civil_

team.jsp; Internet: https://customers.

rolls-royce.com/public/rollsroycecare. 

(4) You may view this service 

information at FAA, Engine & Propeller 

Directorate, 1200 District Avenue, 

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/ibr-locations.html. 

Issued in Burlington, Massachusetts, on 

February 12, 2016. 

Colleen M. D’Alessandro, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2016–05701 Filed 3–14–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–3713; Directorate 

Identifier 2015–NE–23–AD; Amendment 39– 

18425; AD 2016–05–07] 

RIN 2120–AA64 

Airworthiness Directives; Engine 

Alliance Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 


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Federal Register / Vol. 81, No. 50 / Tuesday, March 15, 2016 / Rules and Regulations 13715 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Engine Alliance (EA) GP7270 turbofan 

engines. This AD was prompted by 

reports of the installation of nonconforming honeycomb cartridges in the 

high-pressure compressor (HPC) 

adjacent to the HPC rotor stage 2 to 5 

spool and stage 7 to 9 spool. This AD 

requires removal and replacement of the 

affected HPC rotor stage 2 to 5 and stage 

7 to 9 spools and adjacent honeycomb 

cartridges. We are issuing this AD to 

prevent failure of the HPC rotor stage 2 

to 5 and stage 7 to 9 spools, which could 

lead to uncontained engine failure and 

damage to the airplane. 

DATES: This AD is effective April 19, 

2016. The Director of the Federal 

Register approved the incorporation by 

reference of certain publications listed 

in this AD as of April 19, 2016. 

ADDRESSES: For service information 

identified in this AD, contact Engine 

Alliance, 400 Main St., East Hartford, 

CT 06108, M/S 169–10, phone: 800– 

565–0140; email: help24@pw.utc.com; 

Web site: 

www.engineallianceportal.com. You 

may view this service information at the 

FAA, Engine & Propeller Directorate, 

1200 District Avenue, Burlington, MA. 

For information on the availability of 

this material at the FAA, call 781–238– 

7125. It is also available on the Internet 

at http://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2015–3713. 

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–2015– 

3713; 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 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: Kyle 

Gustafson, Aerospace Engineer, Engine 

& Propeller Directorate, FAA, 1200 

District Avenue, Burlington, MA 01803; 

phone: 781–238–7183; fax: 781–238– 

7199; email: kyle.gustafson@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 certain EA GP7270 turbofan 

engines. The NPRM published in the 

Federal Register on October 23, 2015 

(80 FR 64373). The NPRM was 

prompted by reports of the installation 

of non-conforming honeycomb 

cartridges in the HPC adjacent to the 

HPC rotor stage 2 to 5 spool and stage 

7 to 9 spool. The NPRM proposed to 

require removal and replacement of the 

affected HPC rotor stage 2 to 5 and stage 

7 to 9 spools and adjacent honeycomb 

cartridges. We are issuing this AD to 

correct the unsafe condition on these 

products. 

Related Service Information Under 

1 CFR Part 51 

We reviewed EA Service Bulletin (SB) 

EAGP7–72–327, dated July 21, 2015; 

and SB EAGP7–72–328, dated July 21, 

2015. The SBs describe procedures for 

removal and replacement of the affected 

HPC rotor stage 2 to 5 spools and HPC 

rotor stage 7 to 9 spools and adjacent 

honeycomb cartridges. This service 

information is reasonably available 

because the interested parties have 

access to it through their normal course 

of business or by the means identified 

in the ADDRESSES section. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the NPRM and the FAA’s 

response to each comment. 

Support for the NPRM (80 FR 64373, 

October 23, 2015) 

A commenter supports the NPRM (80 

FR 64373, October 23, 2015). 

Request To Change Applicability 

EA requested that we expand the 

applicability to include GP7272 and 

GP7277 turbofan engines models. EA 

stated that the AD applies to GP7272 

and GP7277 turbofan engines ratings in 

addition to GP7270. 

We disagree. No GP7272 or GP7277 

turbofan engines have been delivered. 

New engines would be delivered in the 

corrected configuration and would not 

be impacted by this AD. We did not 

change this AD. 

Request To Change the Unsafe 

Condition Statement 

EA requested that we change the 

unsafe condition statement to ‘‘We are 

issuing this AD to prevent a hazardous 

engine condition.’’ because no engine 

failures have occurred in the field due 

to non-conforming honeycomb 

cartridges. 

We disagree. The unsafe condition 

describes the condition we are trying to 

prevent and is the justification for this 

AD. It does not describe what has 

occurred in the past. We did not change 

this AD. 

Request To Change the Summary and 

Relevant Service Information 

Paragraphs 

EA requested that we include 

‘‘honeycomb cartridges’’ in the 

Summary and Relevant Service 

Information paragraphs to indicate that 

the honeycomb cartridges require 

replacement. 

We agree because the proposed 

change more completely describes the 

requirements of this AD. We changed 

the Summary and Relevant Service 

Information paragraphs of this AD. 

Request To Change the Relevant 

Service Information, Applicability, and 

Compliance Paragraphs 

EA requested that we revise the 

Relevant Service Information, 

Applicability, and Compliance 

paragraphs of this AD to allow future 

revisions of the applicable Service 

Bulletins (SBs). 

We disagree. We are only authorized 

to mandate use of SBs that we have 

reviewed and which are published. 

Since future revisions of SBs are not yet 

published, we are not authorized to 

mandate their use. We did not change 

this AD. 

Request To Change the Compliance 

Paragraph 

EA requested that we revise 

Compliance paragraph (e)(1)(ii) of this 

AD to ‘‘Remove and replace the 

honeycomb cartridges on the HPC stage 

5 vanes with a part eligible for 

installation.’’ 

EA also requested that we revise 

Compliance paragraph (e)(2)(ii) to 

‘‘Remove and replace the honeycomb 

cartridges on the HPC stage 6, stage 7, 

and stage 8 vanes with a part eligible for 

installation.’’ 

We agree. We changed ‘‘remove’’ to 

‘‘remove from service’’ and ‘‘seal’’ to 

‘‘cartridges’’ and added ‘‘. . . with a 

part eligible for installation’’ in 

compliance paragraphs (e)(1)(ii) and 

(e)(2)(ii) of this AD. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting this AD 

with the changes described previously: 


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13716 Federal Register / Vol. 81, No. 50 / Tuesday, March 15, 2016 / Rules and Regulations 

• Are consistent with the intent that 

was proposed in the NPRM (80 FR 

64373) for correcting the unsafe 

condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM (80 FR 64373). 

We also 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 zero 

engines installed on airplanes of U.S. 

registry. 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 $0. 

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. 

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 

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): 

2016–05–07 Engine Alliance: Amendment 

39–18425; Docket No. FAA–2015–3713; 

Directorate Identifier 2015–NE–23–AD. 

(a) Effective Date 

This AD is effective April 19, 2016. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Engine Alliance (EA) 

GP7270 turbofan engines with one or both of 

the following installed: 

(1) A high-pressure compressor (HPC) rotor 

stage 2 to 5 spool, part number (P/N) 382– 

104–807–0, with a serial number (S/N) listed 

in EA Service Bulletin (SB) EAGP7–72–327, 

dated July 21, 2015; or 

(2) An HPC rotor stage 7 to 9 spool, P/N 

2031M90G04, 2031M90G05, or 2031M90G07, 

with an S/N listed in EA SB EAGP7–72–328, 

dated July 21, 2015. 

(d) Unsafe Condition 

This AD was prompted by reports of the 

installation of non-conforming honeycomb 

cartridges in the HPC adjacent to the HPC 

rotor stage 2 to 5 spool and stage 7 to 9 spool. 

We are issuing this AD to prevent failure of 

the HPC rotor stage 2 to 5 spools and stage 

7 to 9 spools, which could lead to 

uncontained engine failure and damage to 

the airplane. 

(e) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. Within 30 days after the effective date 

of this AD or before accumulating 2,100 

engine cycles since the last disassembly of 

the compressor module of the engine, 

whichever occurs later: 

(1) For engines with an HPC rotor stage 2 

to 5 spool, P/N 382–104–807–0, installed 

with an S/N listed in EA SB EAGP7–72–327, 

dated July 21, 2015, do the following: 

(i) Remove from service the HPC rotor stage 

2 to 5 spool and replace with a part eligible 

for installation. 

(ii) Remove from service the honeycomb 

cartridges on the HPC stage 5 vanes and 

replace with parts eligible for installation. 

(2) For engines with an HPC rotor stage 7 

to 9 spool, P/N 2031M90G04, 2031M90G05, 

or 2031M90G07 installed with an S/N listed 

in EA SB EAGP7–72–328, dated July 21, 

2015, do the following: 

(i) Remove from service the HPC rotor stage 

7 to 9 spool and replace with a part eligible 

for installation. 

(ii) Remove from service the honeycomb 

cartridges on the HPC stage 6, stage 7, and 

stage 8 vanes and replace with parts eligible 

for installation. 

(f) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Engine Certification Office, 

may approve AMOCs for 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. 

(g) Related Information 

For more information about this AD, 

contact Kyle Gustafson, Aerospace Engineer, 

Engine & Propeller Directorate, FAA, 1200 

District Avenue, Burlington, MA 01803; 

phone: 781–238–7183; fax: 781–238–7199; 

email: kyle.gustafson@faa.gov. 

(h) 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) Engine Alliance Service Bulletin (SB) 

EAGP7–72–327, dated July 21, 2015. 

(ii) Engine Alliance SB EAGP7–72–328, 

dated July 21, 2015. 

(3) For Engine Alliance service information 

identified in this AD, contact Engine 

Alliance, 400 Main St., East Hartford, CT 

06108, M/S 169–10, phone: 800–565–0140; 

email: help24@pw.utc.com; Web site: 

www.engineallianceportal.com. 

(4) You may view this service information 

at FAA, Engine & Propeller Directorate, 1200 

District Avenue, 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 

February 26, 2016. 

Colleen M. D’Alessandro, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2016–05702 Filed 3–14–16; 8:45 am] 

BILLING CODE 4910–13–P 


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