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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52180 Federal Register / Vol. 80, No. 167 / Friday, August 28, 2015 / Rules and Regulations 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC. 

For service information identified in 

this AD, contact Bombardier, Inc., 400 

Coˆte-Vertu 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. You may view 

this referenced 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. It is also available 

on the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2015– 

0823. 

FOR FURTHER INFORMATION CONTACT: 

Cesar Gomez, Aerospace Engineer, 

Airframe and Mechanical Systems 

Branch, ANE–171, FAA, New York 

Aircraft Certification Office, 1600 

Stewart Avenue, Suite 410, Westbury, 

NY 11590; telephone (516) 228–7318; 

fax (516) 794–5531. 

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 Bombardier, Inc. Model 

CL–600–2B19 (Regional Jet Series 100 & 

440) airplanes. The NPRM published in 

the Federal Register on April 13, 2015 

(80 FR 19570). 

Transport Canada Civil Aviation 

(TCCA), which is the airworthiness 

authority for Canada, has issued 

Canadian Airworthiness Directive CF– 

2014–36, dated October 17, 2014 

(referred to after this as the Mandatory 

Continuing Airworthiness Information, 

or ‘‘the MCAI’’), to correct an unsafe 

condition for certain Bombardier, Inc. 

Model CL–600–2B19 (Regional Jet 

Series 100 & 440) airplanes. The MCAI 

states: 

Design review found that the burst 

pressure of the flexible hose, used to vent 

oxygen from the high-pressure relief valve of 

the oxygen cylinder overboard, is lower than 

the opening pressure of the high-pressure 

relief valve. This could cause the flexible 

hose to burst before it is able to vent the 

excess oxygen overboard. If an ignition 

source is present, the accumulation of oxygen 

in an enclosed space may result in an 

uncontrolled oxygen-fed fire. 

This [Canadian] AD mandates the 

replacement of the oxygen hose assembly 

with a new design oxygen hose assembly. 

You may examine the MCAI in the AD 

docket on the Internet at http://

www.regulations.gov/

#!documentDetail;D=FAA-2015-0823- 

0002. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the NPRM (80 FR 19570, 

April 13, 2015) and the FAA’s response 

to each comment. 

Request To Extend the Compliance 

Time 

Mesa Airlines asked that the 

compliance time specified in paragraph 

(g) of the NPRM (80 FR 19570, April 13, 

2015) be changed. Mesa Airlines stated 

that the current compliance time would 

immediately ground airplanes on the 

effective date of the AD. Mesa Airlines 

asked that we change the compliance 

time to ‘‘Within 6,000 flight hours, or 

within 44 months after the effective date 

of this AD, whichever occurs first.’’ 

Mesa Airlines added that this would 

allow for scheduling with heavy 

maintenance inspection and parts 

procurement. 

We partially agree with the request. 

We have changed the compliance time 

in paragraph (g) of this AD to ‘‘Within 

5,800 flight hours or 44 months after the 

effective date of this AD, whichever 

occurs first.’’ This change matches the 

compliance time in the MCAI, and will 

allow operators to remain in 

compliance. 

We do not agree that the compliance 

time should be extended to ‘‘Within 

6,000 flight hours, or within 44 months 

after the effective date of this AD, 

whichever occurs first’’. After 

considering all the available 

information, we have determined that 

the compliance time represents an 

appropriate interval of time in which 

the required actions can be performed in 

a timely manner within the affected 

fleet, while still maintaining an 

adequate level of safety. In developing 

an appropriate compliance time, we 

considered the safety implications, parts 

availability, and normal maintenance 

schedules for timely accomplishment of 

the replacement. However, if additional 

data are presented that would justify a 

longer compliance time, we may 

consider further rulemaking on this 

issue. We have not changed the AD in 

this regard. 

Request To Refer To Revised Service 

Information 

Richard Rupslauskas asked that we 

include Bombardier Service Bulletin 

601R–35–018, Revision A, in the NPRM 

(80 FR 19570, April 13, 2015), and give 

credit for Bombardier Service Bulletin 

601R–35–018, dated May 21, 2013. The 

commenter stated that Revision A 

should be distributed very soon, and 

added that no additional work will be 

required on aircraft that have had the 

modification incorporated using the 

original issue of the service information. 

The commenter added that the NPRM 

should recognize that either the original 

or Revision A of the service information 

is acceptable as a method of 

compliance. 

We do not agree to reference 

Bombardier Service Bulletin 601R–35– 

018, Revision A, because that revision 

has not yet been issued. However, after 

Revision A is issued, affected operators 

may request approval to use that 

revision of the referenced service 

bulletin as an alternative method of 

compliance, under the provisions of 

paragraph (i)(1) of this AD. 

Request To Include Parts Cost 

Richard Rupslauskas stated that the 

parts cost is $835 per airplane, and 

added that since 575 airplanes are 

affected, the total cost for parts is 

$480,125. 

We infer that the commenter wants 

the parts cost included in the ‘‘Costs of 

Compliance’’ section of this AD. We 

agree to include the parts cost of $835 

in that section. We have changed this 

AD accordingly. 

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 

and minor editorial changes. We have 

determined that these minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM (80 FR 

19570, April 13, 2015) for correcting the 

unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM (80 FR 19570, 

April 13, 2015). 

We also determined that these 

changes will not increase the economic 

burden on any operator or increase the 

scope of this AD. 

Related Service Information Under 1 

CFR Part 51 

Bombardier has issued Service 

Bulletin 601R–35–018, dated May 21, 

2013. The service information describes 

procedures for replacing the oxygen 

hose assembly with a new, improved 

assembly. The actions described in this 

service information are intended to 

correct the unsafe condition identified 

in the MCAI. This service information is 

reasonably available because the 

interested parties have access to it 


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Federal Register / Vol. 80, No. 167 / Friday, August 28, 2015 / Rules and Regulations 52181 

through their normal course of business 

or by the means identified in the 

ADDRESSES section of this AD. 

Costs of Compliance 

We estimate that this AD affects 575 

airplanes of U.S. registry. 

We also estimate that it takes about 2 

work-hours per product to comply with 

the basic requirements of this AD. 

Required parts will cost about $835 per 

product. The average labor rate is $85 

per work-hour. Based on these figures, 

we estimate the cost of this AD on U.S. 

operators to be $577,875, or $1,005 per 

airplane. 

According to the manufacturer, some 

of the costs of this AD may be covered 

under warranty, thereby reducing the 

cost impact on affected individuals. We 

do not control warranty coverage for 

affected individuals. As a result, we 

have included all costs in our cost 

estimate. 

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 that 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; 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. 

Examining the AD Docket 

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 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 in the ADDRESSES

section. 

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): 

2015–17–16 Bombardier, Inc.: Amendment 

39–18249. Docket No. FAA–2015–0823; 

Directorate Identifier 2014–NM–211–AD. 

(a) Effective Date 

This AD becomes effective October 2, 2015. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bombardier, Inc. Model 

CL–600–2B19 (Regional Jet Series 100 & 440) 

airplanes, certificated in any category, serial 

numbers 7003 and subsequent. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 35, Oxygen. 

(e) Reason 

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 high-pressure relief valve of 

the oxygen cylinder overboard, was lower 

than the opening pressure of the highpressure relief valve, which could cause the 

flexible hose to burst before it can vent the 

excess oxygen overboard. 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. 

(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) 38026– 

4–0280–000 with new, improved assemblies 

having P/N 601R44045–1, in accordance with 

the Accomplishment Instructions of 

Bombardier Service Bulletin 601R–35–018, 

dated May 21, 2013. 

(h) Parts Installation Prohibition 

As of the effective date of this AD, no 

person may install an oxygen hose assembly, 

P/N 38026–4–0280–000, on any airplane. 

(i) 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. 

(j) Related Information 

Refer to Mandatory Continuing 

Airworthiness Information (MCAI) Canadian 

Airworthiness Directive CF–2014–36, 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-2015-0823-0002. 

(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 this AD specifies otherwise. 


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52182 Federal Register / Vol. 80, No. 167 / Friday, August 28, 2015 / Rules and Regulations 

(i) Bombardier Service Bulletin 601R–35– 

018, 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. 2015–20959 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–2014–0455; Directorate 

Identifier 2014–NM–006–AD; Amendment 

39–18247; AD 2015–17–14] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all 

Airbus Model A319, A320, and A321 

series airplanes. This AD was prompted 

by reports that during a full scale fatigue 

test, several broken frames in certain 

areas of the cargo compartment have 

been found, especially on the cargo floor 

support fittings and open tack holes on 

the left-hand side. This AD requires a 

rototest inspection of the open tack 

holes and rivet holes at the cargo floor 

support fittings of the fuselage, 

including doing all applicable related 

investigative actions, and repair if 

necessary. We are issuing this AD to 

detect and correct cracking in the open 

tack holes and rivet holes at the cargo 

floor support fittings of the fuselage, 

which could affect the structural 

integrity of the airplane. 

DATES: This AD becomes effective 

October 2, 2015. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications 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-2014-0455; or in 

person at the Docket 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. 

For service information identified in 

this AD, contact Airbus, Airworthiness 

Office—EIAS, 1 Rond Point Maurice 

Bellonte, 31707 Blagnac Cedex, France; 

telephone +33 5 61 93 36 96; fax +33 5 

61 93 44 51; email account.airwortheas@airbus.com; Internet http://

www.airbus.com. You may view this 

referenced 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. It is also available on the Internet 

at http://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2015–0455. 

FOR FURTHER INFORMATION CONTACT: 

Sanjay Ralhan, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; telephone 425–227–1405; 

fax 425–227–1149. 

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 Airbus Model A319, A320, 

and A321 series airplanes. The NPRM 

published in the Federal Register on 

July 23, 2014 (79 FR 42716). 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA Airworthiness 

Directive 2013–0310, dated December 

20, 2013 (referred to after this as the 

Mandatory Continuing Airworthiness 

Information, or ‘‘the MCAI’’), to correct 

an unsafe condition for all Airbus 

Model A319, A320, and A321 series 

airplanes. The MCAI states: 

During a full scale fatigue test, several 

broken frames in the cargo compartment area 

between Frame (FR) 50 and FR 63, have been 

found, especially on the cargo floor support 

fittings and open tack holes on [the] left hand 

side. 

This condition, if not detected and 

corrected, could affect the structural integrity 

of the aeroplane. 

For the reason described above, this 

[EASA] AD requires repetitive inspections of 

the frames in the cargo compartment area and 

of the cargo floor support fittings and open 

tack holes on the left hand (LH) side, and 

depending on findings, the accomplishment 

of applicable corrective action(s). This 

[EASA] AD also requires a modification, 

which constitutes terminating action for the 

repetitive inspections required by this 

[EASA] AD. 

The actions in this AD include a rototest 

inspection for cracking of the open tack 

holes and rivet holes at the cargo floor 

support fittings of the fuselage; 

modification of the fuselage, including 

doing all applicable related investigative 

actions; and repair if necessary. Related 

investigative actions include rotating 

probe inspections for cracking of the 

holes. You may examine the MCAI in 

the AD docket on the Internet at http:// 

www.regulations.gov/

#!documentDetail;D=FAA-2014-0455- 

0002. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the NPRM (79 FR 42716, 

July 23, 2014) and the FAA’s response 

to each comment. 

Requests To Remove Service 

Information Not Applicable to the U.S. 

Fleet 

Delta Air Lines (DAL), United 

Airlines (UAL), and US Airways 

requested that certain service 

information be removed from the NPRM 

(79 FR 42716, July 23, 2014) as it is not 

applicable to the U.S. fleet. 

DAL stated that Airbus Service 

Bulletin A320–53–1261, dated 

December 21, 2012, which provides a 

terminating modification for the 

repetitive inspections specified in the 

NPRM (79 FR 42716, July 23, 2014), is 

one of eight structural modification 

service bulletins required to operate 

Model A320 airplanes beyond 48,000 

flight cycles/96,000 flight hours 

(referred to as extended service goal 

(ESG)). DAL stated that Airbus Service 

Bulletin A320–53–1261, dated 

December 21, 2012, does not affect DAL 

or any other U.S. operator, since Airbus 

only recognizes airplane effectivity for 

those operators that have accomplished 

this service bulletin (which can only be 

purchased from Airbus) through ESG 

embodiment. 

UAL and US Airways stated that, in 

paragraph (h) of the proposed AD (79 FR 

42716, July 23, 2014), modification of 

the fuselage in accordance with Airbus 


Lhorne on DSK5TPTVN1PROD with RULES