Federal Register / Vol. 80, No. 167 / Friday, August 28, 2015 / Rules and Regulations 52177 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Replacement 

Within 5,800 flight hours or 44 months 

after the effective date of this AD, whichever 

occurs first: Replace all oxygen hose 

assemblies having part number (P/N) S6946– 

01 with new, improved assemblies having P/ 

N BA670–44025–001, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 670BA–35–013, Revision B, 

dated May 20, 2015, including Appendix A, 

dated May 21, 2013. For airplanes on which 

Supplemental Type Certificate ST01648NY 

(http://rgl.faa.gov/Regulatory_and_

Guidance_Library/rgstc.nsf/0/

ebd1cec7b301293e86257cb30045557a/$FILE/

ST01648NY.pdf) is installed, only PART B of 

the Accomplishment Instructions of 

Bombardier Service Bulletin 670BA–35–013, 

Revision B, dated May 20, 2015, including 

Appendix A, dated May 21, 2013, is required. 

(h) Credit for Previous Actions 

This paragraph provides credit for the 

replacement specified in paragraph (g) of this 

AD, if that action was performed before the 

effective date of this AD using Bombardier 

Service Bulletin 670BA–35–013, dated May 

21, 2013; or Bombardier Service Bulletin 

670BA–35–013, Revision A, dated September 

23, 2013; which are not incorporated by 

reference in this AD. 

(i) Parts Installation Prohibition 

As of the effective date of this AD, no 

person may install an oxygen hose assembly, 

P/N S6946–01, on any airplane. 

(j) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York Aircraft 

Certification Office (ACO), ANE–170, FAA, 

has the authority to approve AMOCs for this 

AD, if requested using the procedures found 

in 14 CFR 39.19. Send information to ATTN: 

Program Manager, Continuing Operational 

Safety, FAA, New York ACO, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 11590; 

telephone 516–228–7300; fax 516–794–5531. 

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) Contacting the Manufacturer: For any 

requirement in this AD to obtain corrective 

actions from a manufacturer, the action must 

be accomplished using a method approved 

by the Manager, New York ACO, ANE–170, 

FAA; or Transport Canada Civil Aviation 

(TCCA); or Bombardier, Inc.’s TCCA Design 

Approval Organization (DAO). If approved by 

the DAO, the approval must include the 

DAO-authorized signature. 

(k) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) Canadian 

Airworthiness Directive CF–2014–37, dated 

October 17, 2014, for related information. 

This MCAI may be found in the AD docket 

on the Internet at http://

www.regulations.gov/

#!documentDetail;D=FAA-2015-0822-0004. 

(2) Service information identified in this 

AD that is not incorporated by reference is 

available at the addresses specified in 

paragraphs (l)(3) and (l)(4) of this AD. 

(l) 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 this AD specifies otherwise. 

(i) Bombardier Service Bulletin 670BA–35– 

013, Revision B, dated May 20, 2015, 

including Appendix A, dated May 21, 2013. 

(ii) Reserved. 

(3) For service information identified in 

this AD, contact Bombardier, Inc., 400 CoˆteVertu Road West, Dorval, Que ́bec H4S 1Y9, 

Canada; telephone 514–855–5000; fax 514– 

855–7401; email thd.crj@

aero.bombardier.com; Internet http://

www.bombardier.com. 

(4) You may view this service information 

at the FAA, Transport Airplane Directorate, 

1601 Lind Avenue SW., Renton, WA. For 

information on the availability of this 

material at the FAA, call 425–227–1221. 

(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 Renton, Washington, on August 

17, 2015. 

Kevin Hull, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2015–20961 Filed 8–27–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–1130; Directorate 

Identifier 2015–NE–04–AD; Amendment 39– 

18250; AD 2015–17–17] 

RIN 2120–AA64 

Airworthiness Directives; Pratt & 

Whitney Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all Pratt 

& Whitney (PW) PW4164–1D, PW4168– 

1D, PW4168A–1D and PW4170 engines, 

and certain PW4164, PW4168, and 

PW4168A turbofan engines. This AD 

was prompted by fuel nozzle-to-fuel 

supply manifold interface fuel leaks. 

This AD requires inspecting fuel nozzles 

for signs of leakage, replacing hardware 

as required, and torqueing to specified 

requirement. We are issuing this AD to 

prevent fuel leaks which could result in 

engine fire and damage to the airplane. 

DATES: This AD is effective October 2, 

2015. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of October 2, 2015. 

ADDRESSES: For service information 

identified in this AD, contact Pratt & 

Whitney, 400 Main St., East Hartford, 

CT 06108; phone: 860–565–8770; fax: 

860–565–4503. 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. 

It is also available on the Internet at 

http://www.regulations.gov by searching 

for and locating Docket No. FAA–2014– 

1130. 

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– 

1130; 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: 

Katheryn Malatek, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7747; fax: 781–238– 

7199; email: katheryn.malatek@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 all PW PW4164–1D, PW4168– 

1D, PW4168A–1D and PW4170 engines, 

and certain PW4164, PW4168, and 

PW4168A turbofan engines. The NPRM 


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52178 Federal Register / Vol. 80, No. 167 / Friday, August 28, 2015 / Rules and Regulations 

published in the Federal Register on 

April 21, 2015 (80 FR 22140). The 

NPRM was prompted by reports of four 

fuel nozzle leaks in service and an 

additional six fuel nozzle leaks found 

during shop visits. The root cause is 

inadequate torque of the fuel nozzle-tofuel supply manifold B-nuts for the 

temperatures that the fuel nozzles 

experience. The NPRM proposed to 

require inspecting fuel nozzles for signs 

of leakage, replacing hardware as 

required, and torqueing B-nuts to 

specified requirement. We are issuing 

this AD to prevent fuel leaks which 

could result in engine fire and damage 

to the airplane. 

Related Service Information Under CFR 

Part 51 

We reviewed PW Alert Service 

Bulletin (ASB) No. PW4G–100–A73–44, 

Revision 1, dated February 12, 2015. 

This ASB describes procedures for fuel 

supply manifold inspection and retorque of the B-nut connection. 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 of 

this AD. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the NPRM (80 FR 22140, 

April 21, 2015) and the FAA’s response 

to each comment. 

Request To Change Referenced Service 

Information 

Korean Air requested that this AD 

mandate following PW ASB No. PW4G– 

100–A73–44 Revision 1, dated February 

12, 2015 instead of PW ASB No. PW4G– 

100–A73–44, dated October 10, 2014. 

Korean Air would like to receive credit 

for service performed in accordance 

with the latest revision of the ASB. 

We agree. We changed this AD to 

include PW ASB No. PW4G–100–A73– 

44 Revision 1, dated February 12, 2015 

and added a Credit for Previous Action 

section to provide credit when PW ASB 

No. PW4G–100–A73–44, dated October 

10, 2014 is followed, before the effective 

date of this AD. 

Request To Add Service Information 

Korean Air requested that engines 

incorporating Special Instruction (SI) 

129F–14 meet the requirement for 

compliance with this AD since SI 129F– 

14 provides the same instructions as PW 

ASB No. PW4G–100–A73–44, dated 

October 10, 2014 and PW ASB No. 

PW4G–100–A73–44 Revision 1, dated 

February 12, 2015. 

We agree. We added SI 129F–14 to the 

Credit for Previous Action section. 

Request To Change Mandatory 

Terminating Action 

Korean Air requested that the 

Mandatory Terminating Action section 

be changed to state that the actions 

listed are closing actions to the 

repetitive inspections defined in the 

Compliance section. 

We agree. We changed the Mandatory 

Terminating Action section by adding, 

‘‘As terminating action to the repetitive 

inspection requirements in paragraph 

(e)(1) of this AD do the following:’’. 

Request To Change Applicability 

PW requested that engines 

incorporating PW Service Bulletin (SB) 

No. PW4G–100–72–220, Revision 4, 

dated September 30, 2011 be added to 

the Applicability section. 

We disagree. Engines incorporating 

PW SB No. PW4G–100–72–220, 

Revision 4, dated September 30, 2011 

are identified in the Applicability 

section by model designation. We did 

not change this AD. 

Request To Redefine ‘‘Cycles’’ 

PW requested that the definition of 

cycles be changed from ‘‘cycles since 

new or cycles since the incorporation of 

PW SB No. PW4G–100–72–214, dated 

December 15, 2011 or SB No. PW4G– 

100–72–219, Revision 1, dated October 

5, 2011’’ to ‘‘since new (1st run) or since 

last torque application to the B-nuts on 

the fuel nozzle installation.’’ The 

justification for this request is that the 

B-nuts could have been torqued 

subsequent to the incorporation of the 

service bulletins. 

We agree. We changed the Definition 

paragraph to define cycles as ‘‘. . . 

since new or cycles since last torque 

application to the B-nuts on the fuel 

nozzle installation.’’ 

Request To Change Compliance Time 

Asiana Airlines requested that the 

compliance time listed in this AD match 

the dates listed in the ASB. Asiana 

believes the compliance time listed in 

this AD is more restrictive than the 

dates listed in the ASB. 

We disagree. Using cycles since the 

effective date of this AD instead of 

calendar dates provides greater fleet 

management flexibility to the operator 

while acceptably resolving the unsafe 

condition. 

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. 

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 would affect 

about 72 engines installed on airplanes 

of U.S. registry. The average labor rate 

is $85 per hour. We estimate that parts 

replacement will cost about $1,356 per 

engine. Based on these figures, we 

estimate the cost of this AD on U.S. 

operators to be $391,392. 

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. 


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Federal Register / Vol. 80, No. 167 / Friday, August 28, 2015 / Rules and Regulations 52179 

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): 

2015–17–17 Pratt & Whitney: Amendment 

39–18250 ; Docket No. FAA–2014–1130; 

Directorate Identifier 2015–NE–04–AD. 

(a) Effective Date 

This AD is effective October 2, 2015. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Pratt & Whitney 

(PW) PW4164–1D, PW4168–1D, PW4168A– 

1D and PW4170 engines; and all PW4164, 

PW4168, and PW4168A turbofan engines that 

have incorporated either PW Service Bulletin 

(SB) No. PW4G–100–72–214, dated 

December 15, 2011 or PW SB No. PW4G– 

100–72–219, Revision 1, dated October 5, 

2011. 

(d) Unsafe Condition 

This AD was prompted by fuel nozzle-tofuel supply manifold interface fuel leaks. We 

are issuing this AD to prevent fuel leaks 

which could result in engine fire and damage 

to the airplane. 

(e) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(1) Within 800 flight hours after the 

effective date of this AD, and within every 

800 flight hours since last inspection 

thereafter, inspect all fuel nozzle-to-fuel 

supply manifold interfaces for evidence of 

fuel leaks, soot, and coke formation. Use the 

Accomplishment Instructions, Part A, of PW 

Alert Service Bulletin (ASB) No. PW4G–100– 

A73–44, Revision 1, dated February 12, 2015 

to do the inspections. 

(2) Replace hardware that fails an 

inspection. Use the Accomplishment 

Instructions, Part A, of PW ASB No. PW4G– 

100–A73–44, Revision 1, dated February 12, 

2015 to do the replacement. 

(f) Mandatory Terminating Action 

As terminating action to the repetitive 

inspection requirements in paragraph (e)(1) 

of this AD do the following: 

(1) Inspect all fuel nozzle-to-fuel supply 

manifold interfaces for fuel leaks, soot, and 

coke formation, replace hardware that fails 

inspection, and re-torque all fuel nozzle-tofuel supply manifold B-nuts as follows: 

(i) For engines with fewer than 1,500 

cycles on the effective date of this AD, before 

accumulating another 650 cycles, not to 

exceed 1,900 cycles. 

(ii) For engines with 1,500 cycles or more, 

but less than 2,500 cycles on the effective 

date of this AD, before accumulating another 

400 cycles, not to exceed 2,700 cycles. 

(iii) For engines with 2,500 cycles or more 

on the effective date of this AD, before 

accumulating another 200 cycles. 

(2) Use the Accomplishment Instructions, 

Parts B through E, of PW ASB No. PW4G– 

100–A73–44, Revision 1, dated February 12, 

2015 to do the inspection, replacement, and 

retorqueing. 

(g) Credit for Previous Action 

This paragraph provides credit for the 

actions required by paragraphs (e) and (f) of 

this AD, if the actions were performed before 

the effective date of this AD, using the 

procedures specified in PW ASB No. PW4G– 

100–A73–44, dated October 10, 2014 or 

Special Instruction 129F–14. 

(h) Definition 

For the purpose of this AD ‘‘cycles’’ is 

defined as cycles since new or cycles since 

last torque application to the B-nuts on the 

fuel nozzle installation. 

(i) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Engine Certification Office, 

FAA, 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. 

(j) Related Information 

For more information about this AD, 

contact Katheryn Malatek, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; phone: 781–238–7747; fax: 781–238– 

7199; email: katheryn.malatek@faa.gov. 

(k) 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) Pratt & Whitney (PW) ASB No. PW4G– 

100–A73–44, Revision 1, dated February 12, 

2015. 

(ii) Reserved. 

(3) For PW service information identified 

in this AD, contact Pratt & Whitney, 400 

Main St., East Hartford, CT 06108; phone: 

860–565–8770; fax: 860–565–4503. 

(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 

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 Burlington, Massachusetts, on 

August 18, 2015. 

Diane S. Romanosky, 

Acting Directorate Manager, Engine & 

Propeller Directorate, Aircraft Certification 

Service. 

[FR Doc. 2015–21204 Filed 8–27–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–0823; Directorate 

Identifier 2014–NM–211–AD; Amendment 

39–18249; AD 2015–17–16] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Bombardier, Inc. Model CL–600–2B19 

(Regional Jet Series 100 & 440) 

airplanes. This AD was prompted by 

results of a design review indicating that 

the burst pressure of the flexible hose, 

used to vent oxygen from the highpressure relief valve of the oxygen 

cylinder overboard, was lower than the 

opening pressure of the high-pressure 

relief valve, which could cause the 

flexible hose to burst before it can vent 

the excess oxygen overboard. This AD 

requires replacing the oxygen hose 

assembly with a new, improved 

assembly. We are issuing this AD to 

prevent the accumulation of oxygen in 

an enclosed space, which could result 

in an uncontrolled oxygen-fed fire if an 

ignition source is nearby. 

DATES: This AD becomes effective 

October 2, 2015. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of October 2, 2015. 

ADDRESSES: You may examine the AD 

docket on the Internet at http://

www.regulations.gov/

#!docketDetail;D=FAA-2015-0823 or in 

person at the Docket Management 

Facility, U.S. Department of 


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