Federal Register / Vol. 80, No. 91 / Tuesday, May 12, 2015 / Rules and Regulations 27081 

TABLE 1 TO PARAGRAPH (h) OF THIS AD—WORK TASKS—Continued 

For Model— Previously modified using— Accomplish the identified work tasks in accordance with 

the instructions of— 

A310–204 and –304 airplanes ......................................... Airbus Service Bulletin 

A310–74–2003, dated 

July 2, 2010.

Work Tasks 831–802001 and 831–803001 using Airbus 

Service Bulletin A310–74–2003, Revision 06, dated 

January 27, 2014. 

A310–204 and –304 airplanes ......................................... Airbus Service Bulletin 

A310–74–2003, Revision 

01, dated April 1, 2011.

Work Tasks 831–802001 and 831–803001 using Airbus 

Service Bulletin A310–74–2003, Revision 06, dated 

January 27, 2014. 

A310–204 and –304 airplanes ......................................... Airbus Service Bulletin 

A310–74–2003, Revision 

02, dated February 9, 

2012.

Work Tasks 831–802001 and 831–803001 using Airbus 

Service Bulletin A310–74–2003, Revision 06, dated 

January 27, 2014. 

A310–204 and –304 airplanes ......................................... Airbus Service Bulletin 

A310–74–2003, Revision 

03, dated May 10, 2012.

Work Task 831–803001 using Airbus Service Bulletin 

A310–74 2003, Revision 06, dated January 27, 2014. 

(i) Credit for Previous Actions 

(1) This paragraph provides credit for the 

actions required by paragraph (g) of this AD, 

if those actions were performed before the 

effective date of this AD using the applicable 

service information specified in paragraphs 

(i)(1)(i) and (i)(2)(ii) of this AD, and provided 

that the additional work in Airbus Service 

Bulletin A300–74–6003, Revision 06, dated 

January 27, 2014; or Airbus Service Bulletin 

A310–74–2003, Revision 06, dated January 

27, 2014; is done, as required by paragraph 

(g) of this AD. 

(i) For Model A300 B4–601, B4–603, and 

B4–605R airplanes, Model A300 F4–605R 

airplanes, and Model A300 C4–605R Variant 

F airplanes: Airbus Mandatory Service 

Bulletin A300–74–6003, Revision 04, dated 

January 9, 2013, which is not incorporated by 

reference in this AD. 

(ii) For Model A310–204 and –304 

airplanes: Airbus Mandatory Service Bulletin 

A310–74–2003, Revision 04, dated January 9, 

2013, which is not incorporated by reference 

in this AD. 

(2) This paragraph provides credit for the 

actions required by paragraph (g) of this AD, 

if those actions were performed before the 

effective date of this AD using the applicable 

service information specified in paragraphs 

(i)(2)(i) and (i)(2)(ii) of this AD. 

(i) For Model A300 B4–601, B4–603, and 

B4–605R airplanes, Model A300 F4–605R 

airplanes, and Model A300 C4–605R Variant 

F airplanes: Airbus Service Bulletin A300– 

74–6003, Revision 05, dated May 23, 2013, 

which is not incorporated by reference in this 

AD. 

(ii) For Model A310–204 and –304 

airplanes: Airbus Service Bulletin A310–74– 

2003, Revision 05, dated May 23, 2013, 

which is not incorporated by reference in this 

AD. 

(j) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, Transport Airplane 

Directorate, FAA, has the authority to 

approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

In accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the International Branch, send it to ATTN: 

Dan Rodina, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

telephone 425–227–2125; fax 425–227–1149. 

Information may be emailed to: 9-ANM-116- 

AMOC-REQUESTS@faa.gov. 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, International Branch, ANM– 

116, Transport Airplane Directorate, FAA; or 

the European Aviation Safety Agency 

(EASA); or Airbus’s EASA Design 

Organization Approval (DOA). If approved by 

the DOA, the approval must include the 

DOA-authorized signature. 

(k) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) EASA 

Airworthiness Directive 2014–0156, dated 

July 3, 2014, for related information. This 

MCAI may be found in the AD docket on the 

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

#!documentDetail;D=FAA-2012-0636-0002. 

(2) Service information identified in this 

AD that is not incorporated by reference may 

be viewed 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) Airbus Service Bulletin A300–74–6003, 

Revision 06, dated January 27, 2014. 

(ii) Airbus Service Bulletin A310–74–2003, 

Revision 06, dated January 27, 2014. 

(3) For service information identified in 

this AD, contact Airbus SAS, Airworthiness 

Office—EAW, 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.airworth-eas@

airbus.com; Internet http://www.airbus.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 April 10, 

2015. 

Jeffrey E. Duven, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2015–10181 Filed 5–11–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1107; Directorate 

Identifier 2011–NM–216–AD; Amendment 

39–18143; AD 2015–08–07] 

RIN 2120–AA64 

Airworthiness Directives; Zodiac 

Aerotechnics (Formerly Intertechnique 

Aircraft Systems) Oxygen Mask 

Regulators 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Zodiac Aerotechnics (formerly 

Intertechnique Aircraft Systems) oxygen 

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27082 Federal Register / Vol. 80, No. 91 / Tuesday, May 12, 2015 / Rules and Regulations 

mask regulators. This AD was prompted 

by a report of a malfunctioning mask 

having an inflatable harness with a high 

premature rupture rate due to defective 

silicon. This AD requires inspecting and 

replacing defective harnesses with new 

or modified serviceable units. We are 

issuing this AD to detect and correct 

defective harnesses, which could lead, 

in case of a sudden depressurization 

event, to a harness rupture, thereby 

providing inadequate protection against 

hypoxia and possibly resulting in 

unconsciousness of the affected 

flightcrew member and consequent 

reduced control of the airplane. 

DATES: This AD becomes effective June 

16, 2015. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of June 16, 2015. 

ADDRESSES: You may examine the AD 

docket on the Internet at http://

www.regulations.gov/

#!docketDetail;D=FAA-2012-1107; 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 Zodiac Aerospace service 

information identified in this AD, 

contact Zodiac Services, Technical 

Publication Department, Zodiac 

Aerotechnics, Oxygen Systems Europe, 

61 Rue Pierre Curie–CS20001, 78373 

Plaisir Cedex, France; phone: (33) 01 61 

34 23 23; fax: (33) 01 30 55 71 61; email: 

yann.laine@zodiacaerospace.com; 

Internet: 

www.services.zodiacaerospace.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–2012– 

1107. 

FOR FURTHER INFORMATION CONTACT: Ian 

Lucas, Aerospace Engineer, Boston 

Aircraft Certification Office (ACO) 

ANE–150, FAA, Engine and Propeller 

Directorate, 12 New England Executive 

Park, Burlington, MA 01803; phone: 

781–238–7757; fax: 781–238–7170; 

email: ian.lucas@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 Zodiac Aerotechnics 

(formerly Intertechnique Aircraft 

Systems) oxygen mask regulators. The 

NPRM published in the Federal 

Register on October 25, 2012 (77 FR 

65148). 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA Airworthiness 

Directive 2011–0090R1, dated July 13, 

2011 (referred to after this as the 

Mandatory Continuing Airworthiness 

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

and correct an unsafe condition on 

certain Zodiac Aerotechnics (formerly 

Intertechnique Aircraft Systems) oxygen 

mask regulators. The MCAI states: 

A malfunction of a quick donning mask 

was reported to [Zodiac Aerotechnics 

(formerly] Intertechnique [Aircraft Systems], 

who initiated an investigation in order to 

detect the root cause and the failure mode. 

Despite the fact that the analysis did not lead 

to any final conclusion, discrete suspected 

silicon batches have been identified which 

have shown an unusually high premature 

rupture rate. 

Some of the affected harnesses are known 

to have been delivered as spares. 

Consequently, an inflatable harness 

belonging to one of the suspect batches may 

have become installed on an Oxygen Mask 

Regulator, the serial number (s/n) or [part 

number] P/N of which is not identified in 

Appendix II of Intertechnique [Zodiac 

Aerospace] Service Bulletin (SB) MXH–35– 

240. 

This fact widens the Applicability of this 

[EASA] AD to extend beyond the individual 

Oxygen Mask Regulators identified by s/n 

and P/N in Appendix II of the SB. 

This condition, if not detected and 

corrected, could lead, in case of a sudden 

depressurization event, to a harness rupture, 

thereby providing inadequate protection 

against hypoxia of the affected flight crew 

member, possibly resulting in 

unconsciousness and consequent reduced 

control of the aeroplane. 

For the reasons described above, this 

[EASA] AD requires the identification and 

replacement of all potentially defective 

harnesses with serviceable units. 

Note 1: The affected batches were installed 

on harnesses manufactured between 

December 2008 and August 2010, having 

dates codes 0850S (week 50 of 2008) through 

1031S (week 31 of 2010). 

Note 2: Harness assemblies that do not 

have a batch code were manufactured before 

week 33 of 2008 and are not affected by this 

unsafe condition. 

This [EASA] AD has been revised to 

correct a typographical error in the 

Applicability, which inadvertently referred 

to P/N MA10–12 masks, whereas in fact, all 

P/N MA10 series could have an affected 

harness installed. In addition, this revised 

[EASA] AD corrects Note 2 (above), which 

confused harness manufacturing date codes 

with the affected harnesses batch codes. 

This [EASA] AD is also revised to make 

reference to the latest revisions of the 

referenced Intertechnique [Zodiac Aerospace] 

service publications which identify by s/n 

and P/N, in Appendix II of the SB, more 

oxygen mask regulators that are known or 

suspected to have an affected harness 

installed. Finally, this [EASA] AD is revised 

to add a Note to the Required Actions 

section, to stress the fact that other oxygen 

mask regulators could be affected, in addition 

to those listed in Appendix II of the SB. 

You may examine the MCAI in the 

AD docket on the Internet at http://

www.regulations.gov/

#!documentDetail;D=FAA-2012-1107- 

0003. 

Actions Since the NPRM (77 FR 65148, 

October 25, 2012) was Issued 

We have reviewed Zodiac Aerospace 

Service Bulletin MXH–35–241, Revision 

3, dated June 23, 2011. The NPRM 

referenced Zodiac Aerospace (formerly 

Intertechnique Aircraft Systems) Service 

Bulletin MXH–35–241, Revision 2, 

dated May 19, 2011, as one of the 

appropriate sources of service 

information for the required actions. 

Zodiac Aerospace Service Bulletin 

MXH–35–241, Revision 3, dated June 

23, 2011, corrected typographical errors 

and updated a flow chart, but specifies 

the same procedures as the earlier 

revision. 

We have revised the references in 

paragraphs (g) and (h) of this AD to refer 

to Zodiac Aerospace Service Bulletin 

MXH–35–241, Revision 3, dated June 

23, 2011, as one of the appropriate 

sources of service information for the 

required actions. We have also added 

Zodiac Aerospace Service Bulletin 

MXH–35–241, Revision 2, dated May 

19, 2011, to paragraph (l) of this AD to 

allow credit for previous actions done 

using that service information. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the NPRM (77 FR 65148, 

October 25, 2012) and the FAA’s 

response to each comment. 

Request To Revise Service Information 

Contact 

Zodiac Aerotechnics (formerly 

Intertechnique Aircraft Systems) 

requested revising the contact address, 

telephone number, and Web site in 

paragraph (n)(2) of the NPRM (77 FR 

65148, October 25, 2012) to read ‘‘61 

Rue Pierre Curie CS20001,’’ and 

‘‘telephone: (33) 1 61 34 23 23,’’ and 

‘‘www.services.zodiacaerospace.com.’’ 

We have revised this AD to identify 

the legal name of the manufacturer as 

published in the most recent technical 

service order for crewmember demand 

oxygen masks. Intertechnique Aircraft 

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Federal Register / Vol. 80, No. 91 / Tuesday, May 12, 2015 / Rules and Regulations 27083 

Systems changed its legal name to 

Zodiac Aerotechnics; therefore we 

revised the manufacturer name in the 

SUMMARY and ADDRESSES sections, and 

‘‘Applicability’’ and ‘‘Material 

Incorporated by Reference’’ paragraphs 

of this AD. We have changed this 

contact information in the ADDRESSES

section of this final rule and paragraph 

(o)(3) of this AD accordingly. 

Request To Withdraw NPRM (77 FR 

65148, October 25, 2012) or Revise 

Compliance Time 

American Airlines (American) 

requested that we withdraw the NPRM 

(77 FR 65148, October 25, 2012). Based 

on Boeing’s analysis referenced in a 

Boeing Service Letter, American 

disagreed with the need for the NPRM. 

American stated that the concern in the 

NPRM has been reviewed by Boeing for 

potential safety and was found not to be 

safety-based on a numerical risk 

assessment. American stated that if we 

do not withdraw the NPRM, it requests 

that we extend the threshold specified 

in the NPRM to a minimum of 3 years. 

We do not agree with the commenter’s 

request to withdraw the NPRM (77 FR 

65148, October 25, 2012) or extend the 

compliance time. We agree with the 

EASA’s finding of an unsafe condition, 

as explained in EASA AD 2011–0090R1, 

dated July 13, 2011, as well as the 

compliance time for taking corrective 

action that is specified in the EASA AD 

2011–0090R1. However, affected 

operators may request approval of an 

alternative method of compliance 

(AMOC) for an extension of the 

compliance time for the inspection 

under the provisions of paragraph (m) of 

this AD by submitting data 

substantiating that the change would 

provide an acceptable level of safety. 

We have not changed this AD in this 

regard. 

Request To Clarify Affected Airplanes 

for Inspection and Replacement 

Requirements 

Horizon Air requested that paragraphs 

(g)(1), (g)(2), (h), and (k) of the NPRM 

(77 FR 65148, October 25, 2012) be 

revised for clarity. Horizon stated the 

NPRM appears to address only the ‘‘as 

delivered’’ condition of the airplanes. 

Horizon indicated the NPRM stated that 

Zodiac Aerospace Service Bulletin 

MXH–35–240, Revision 7, dated 

September 1, 2011, applies ‘‘for all 

aircraft other than Bombardier 

airplanes,’’ and Zodiac Aerospace 

Service Bulletin MXH–35–241, Revision 

3, dated June 23, 2011, applies ‘‘for 

Bombardier airplanes.’’ Horizon stated 

this is incorrect since Zodiac Aerospace 

Service Bulletin MXH–35–240, Revision 

7, dated September 1, 2011, could apply 

to Bombardier airplanes if the crew 

oxygen masks delivered with the 

airplanes were removed and replaced 

with masks listed in Zodiac Aerospace 

Service Bulletin MXH–35–240, Revision 

7, dated September 1, 2011. 

We acknowledge the commenter’s 

concern that it may be possible that a 

harness on a Bombardier airplane may 

be replaced with one listed in Appendix 

I of Zodiac Service Bulletin MXH–35– 

240, Revision 7, dated September 1, 

2011, during the maintenance of the 

airplane. However, this AD corresponds 

to EASA AD 2011–0090R1, dated July 

13, 2011, which specifies using Zodiac 

Aerospace Service Bulletin MXH–35– 

241, Revision 3, dated June 23, 2011, for 

Bombardier airplanes. The suggested 

changes would alter the actions 

currently proposed in the NPRM (77 FR 

65148, October 25, 2012), so additional 

rulemaking would be required. 

We find that delaying this action 

would be inappropriate in light of the 

identified unsafe condition. Therefore, 

we have not changed this AD regarding 

this issue. However, we might consider 

further rulemaking if EASA issues 

additional rulemaking or we determine 

that an additional inspection of 

Bombardier airplanes for harnesses 

identified in Appendix I of Zodiac 

Service Bulletin MXH–35–240, Revision 

7, dated September 1, 2011, is 

necessary. 

Request To Revise Regulatory 

Paragraph into a Note 

United Airlines (United) requested 

that we change paragraph (g)(2) of the 

NPRM (77 FR 65148, October 25, 2012) 

to a note. United contends that 

paragraph (g)(2) of the NPRM is worded 

as a clarification as to whether an 

operator can use Appendix II of Zodiac 

Service Bulletin MXH 35 240, Revision 

7, dated September 1, 2011; or 

Appendix II of Zodiac Service Bulletin 

MXH 35 241, Revision 3, dated June 23, 

2011; alone in demonstrating 

compliance to the AD. 

We agree that the wording in 

paragraph (g)(2) of the NPRM (77 FR 

65148, October 25, 2012) is 

informational and is meant to clarify 

that using Appendix II of Zodiac Service 

Bulletin MXH 35 241, Revision 3, dated 

June 23, 2011 alone is not allowed. We 

have re-designated paragraph (g)(2) of 

the NPRM as Note 1 to paragraph (g) of 

this AD. We have also re-designated 

paragraph (g)(1) of the NPRM as 

paragraph (g) of this AD. 

Request To Revise Compliance Time 

Air Wisconsin Airlines (Air 

Wisconsin) requested that the phrase 

‘‘Before further flight’’ specified in 

paragraph (h) of the NPRM (77 FR 

65148, dated October 25, 2012) be 

replaced using a compliance time of 

‘‘Within 24 months after the effective 

date of this AD,’’ to match the 

compliance time specified in paragraph 

(g)(1) of the NPRM. Air Wisconsin 

stated paragraph (g)(1) of the NPRM 

would require an inspection to 

determine if the part number and batch 

number of the inflatable harness are 

listed in Appendix I of Zodiac Service 

Bulletin MXH–35–241, Revision 2, 

dated May 19, 2011. 

We agree with the commenter’s 

request because the intent of this final 

rule is to replace affected harnesses 

within a compliance time of 24 months. 

We have changed the compliance time 

in paragraph (h) of this AD to read, 

‘‘Within 24 months after the effective 

date of this AD.’’ 

Request To Revise Exception Paragraph 

to Include Date of Manufacture (DMF) 

Codes 

American requested that the list of 

excluded part numbers specified by 

paragraph 1.A.(4) of Zodiac Service 

Bulletin MXH–35–240, Revision 7, 

dated September 1, 2011, be included in 

paragraph (i) of the NPRM (77 FR 65148, 

October 25, 2012), for clarity. 

We agree with the commenter’s 

request to include the excluded part 

numbers because the list of excluded 

oxygen mask regulators specified by 

paragraph 1.A.(4), ‘‘Not Concerned 

Equipment,’’ of Zodiac Service Bulletin 

MXH–35–240, Revision 7, dated 

September 1, 2011, is not directly 

captured in the content of this AD. We 

have changed paragraph (i) of this AD 

to include those part numbers listed in 

paragraph 1.A.(4), ‘‘Not Concerned 

Equipment,’’ of Zodiac Service Bulletin 

MXH–35–240, Revision 7, dated 

September 1, 2011. 

Request To Revise Applicability 

American requested that paragraph (c) 

of the NPRM (77 FR 65148, October 25, 

2012) be revised to state the AD is 

applicable only to harnesses having 

DMF codes between (0850S) and 

(1031S). American explained that the 

corresponding EASA AD 2011–0090R1, 

dated July 13, 2011, requires the 

identification and replacement of ‘‘all 

potentially defective harnesses.’’ 

American explained that specifying 

which harnesses had affected DMF 

codes would provide clarity. 

We disagree with the commenter’s 

request to revise the applicability 

specified in paragraph (c) of this AD. 

The applicability specified in paragraph 

(c) of this AD identifies affected oxygen 

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27084 Federal Register / Vol. 80, No. 91 / Tuesday, May 12, 2015 / Rules and Regulations 

mask regulators since harnesses can be 

rotated and replaced on the oxygen 

mask regulators. We also note that DMF 

codes apply to the regulators and not 

the harnesses. 

However, we note that paragraph (i) of 

this AD does clarify which harnesses are 

affected by the inspection and 

replacement requirements of paragraphs 

(g) and (h) of this AD. Paragraph (i) of 

this AD also states that oxygen mask 

regulators having certain DMF codes are 

excluded from the inspection and 

replacement requirements of paragraphs 

(g) and (h) of this AD. No change has 

been made to this AD in this regard. 

Request To Clarify Affected Oxygen 

Mask Regulators 

United requested we revise paragraph 

(i) of the NPRM (77 FR 65148, October 

25, 2012) by adding the words ‘‘having 

a part number and batch number 

identified in Appendix I of the service 

information specified in paragraph (i)(1) 

or (i)(2) of this AD’’ to clarify which 

masks are subject to inspection and 

replacement requirements. United also 

requested that we revise paragraph (i) of 

the NPRM by specifying that the part 

number and batch number are those of 

the ‘‘harness assembly,’’ and the date of 

manufacturing is that of the ‘‘mask 

assembly.’’ 

We agree with the commenter’s 

request for the reasons provided by the 

commenter. We have revised paragraph 

(i) of this AD accordingly. 

Request To Carry Forward Exceptions 

and Allow Original Equipment 

Manufacturer (OEM) Date in Lieu of 

DMF Code 

Boeing requested that we revise the 

NPRM (77 FR 65148, October 25, 2012) 

to allow the exceptions of paragraph (i) 

of the NPRM to carry forward into 

paragraph (k) of the NPRM for the parts 

installation prohibition for new 

production aircraft. Boeing also 

requested that we revise the NPRM to 

allow the date on which an oxygen 

mask was serviced for remanufacture or 

overhaul by the OEM to replace the date 

of manufacture of the original mask. 

Boeing contends that, where inflatable 

harnesses have been serviced, the OEM 

meets all existing AD requirements. 

We disagree with both requests for 

allowing the exceptions to carry forward 

and to allow the date of service to 

replace the date of manufacture because 

the root cause of the defective oxygen 

masks is a high premature rupture rate 

due to defective silicon. This 

manufacturing defect affected a specific 

manufacturing batch. Thus, it is 

possible that a mask overhaul may not 

necessarily address the root cause or 

unsafe condition. Also, since oxygen 

mask regulators are rotable parts, it is 

possible that an oxygen mask regulator 

can be rotated onto a new production 

aircraft once it is in service. No change 

has been made to this AD in this regard. 

Request To Revise Wording in 

Paragraph (k) of the NPRM (77 FR 

65148, October 25, 2012) 

American and Horizon Air requested 

we revise paragraph (k) of the NPRM (77 

FR 65148, October 25, 2012) by 

replacing the word ‘‘install’’ with the 

word ‘‘replace.’’ American stated if the 

oxygen mask/regulator is removed to 

facilitate maintenance prior to the 

compliance date of the AD, the NPRM, 

as written, would prohibit operators 

from re-installing the crew oxygen 

mask/regulator and would require 

immediate installation of a new or reidentified harness in order to comply 

with the AD. Horizon stated that the use 

of the word ‘‘install’’ effectively reduces 

the compliance time to perform the 

inspection and replacement specified by 

paragraphs (g) and (h) of the NPRM. 

American stated this clarification would 

allow operators adequate time to remove 

and re-install a crew oxygen mask/

regulator to facilitate maintenance prior 

to the compliance date. 

United stated that, while paragraph 

(h) of the NPRM (77 FR 65148, October 

25, 2012) clearly stated the replacement 

requirement, United had concerns 

regarding Zodiac Service Bulletin 

MXH–35–240, Revision 7, dated 

September 1, 2011. We contacted 

United for clarification. Where 

paragraph 3.C. of the Accomplishment 

Instructions of Zodiac Service Bulletin 

MXH–35–240, Revision 7, dated 

September 1, 2011, uses the word 

‘‘modification,’’ United suggested using 

the word ‘‘replacement.’’ 

We agree to provide clarification. The 

intent of the ‘‘Parts Installation 

Prohibition’’ specified in paragraph (k) 

of this AD is that operators replace parts 

with good parts rather than bad parts. 

Although the words ‘‘install,’’ and 

‘‘modification’’ are generally considered 

to be broader than the word ‘‘replace,’’ 

for purposes of this AD, these words 

should be interpreted as meaning 

‘‘replace’’ while remaining within the 

spirit and intent of the AD. Therefore, 

simply reinstalling the same part during 

maintenance activities is acceptable for 

compliance with the requirements of 

paragraph (k) of this AD for that 

reinstallation. However, if an inflatable 

harness has a part number and batch 

number identified as being from a 

defective batch during the inspection 

required by paragraph (g) of this AD, 

paragraph (h) of this AD requires 

replacement before further flight. We 

have not changed the final rule 

regarding this issue. 

Request To Reference Flow Chart 

Contained in Service Information 

Boeing requested that paragraph (k) of 

the NPRM (77 FR 65148, October 25, 

2012) be revised by adding the words 

‘‘This determination can be made by 

following the flow chart contained in 

paragraph 3., ‘‘Accomplishment 

Instructions,’’ of Zodiac Service Bulletin 

MXH–35–240, Revision 7, dated 

September 1, 2011.’’ Boeing stated that, 

by adding these words, the NPRM 

would match EASA AD 2011–0090 R1, 

dated July 13, 2011. Boeing stated the 

flow chart includes an acceptance 

decision based on the letter ‘‘I’’ written 

on the bushing of the inflatable harness 

of the crew oxygen mask to indicate it 

has been inspected using this service 

information. 

We agree with the commenter’s 

request because using the flow chart in 

paragraph 3., ‘‘Accomplishment 

Instructions,’’ of Zodiac Service Bulletin 

MXH–35–240, Revision 7, dated 

September 1, 2011, reflects the current 

method to determine whether a mask 

needs to be replaced. We have revised 

paragraph (k) of this AD by referring to 

the flow chart contained in paragraph 

3., ‘‘Accomplishment Instructions,’’ of 

Zodiac Aerospace Service Bulletin 

MXH–35–240, Revision 7, dated 

September 1, 2011, to determine if parts 

are not listed in Appendix I of Zodiac 

Aerospace Service Bulletin MXH–35– 

240, Revision 7, dated September 1, 

2011. 

We have also removed the reference 

to Zodiac Aerospace Service Bulletin 

MXH–35–241, Revision 2, dated May 

19, 2011, from paragraph (k) of the 

NPRM (77 FR 65148, October 25, 2012), 

in order to match EASA AD 2011–0090 

R1, dated July 13, 2011. For all 

airplanes, the parts listed in Appendix 

I of Zodiac Aerospace Service Bulletin 

MXH–35–240, Revision 7, dated 

September 1, 2011, may not be installed. 

Removal of ‘‘Airworthy Product’’ 

Paragraph from this AD 

We have removed paragraph (m)(2) of 

the NPRM (77 FR 65148, October 25, 

2012) since the airworthy product 

statement regarding contacting the 

manufacturer or other sources is 

unnecessary in this AD. We 

redesignated paragraph (m)(1) as 

paragraph (m) of this AD. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

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Federal Register / Vol. 80, No. 91 / Tuesday, May 12, 2015 / Rules and Regulations 27085 

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 (77 FR 

65148, October 25, 2012) for correcting 

the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM (77 FR 65148, 

October 25, 2012). 

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 

Zodiac Aerospace has issued Service 

Bulletin MXH–35–240, Revision 7, 

dated September 1, 2011; and Service 

Bulletin MXH–35–241, Revision 3, 

dated June 23, 2011. The service 

information describes procedures for 

inspecting and replacing defective 

harnesses with new or modified 

serviceable units. This service 

information is reasonably available at 

http://www.regulations.gov by searching 

for and locating Docket No. FAA–2012– 

1107. Or see ADDRESSES for other ways 

to access this service information. 

Costs of Compliance 

We estimate that this AD affects 5,500 

airplanes of U.S. registry. 

We also estimate that it will take 

about 1 work-hour per product to 

comply with the basic requirements of 

this AD. The average labor rate is $85 

per work-hour. Required parts will cost 

$0 per product. Based on these figures, 

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

operators to be $467,500, or $85 per 

product. 

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-2012-1107; 

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): 

2015–08–07 Zodiac Aerotechnics (formerly 

Intertechnique Aircraft Systems): 

Amendment 39–18143. Docket No. 

FAA–2012–1107; Directorate Identifier 

2011–NM–216–AD. 

(a) Effective Date 

This AD becomes effective June 16, 2015. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Zodiac Aerotechnics 

(formerly Intertechnique Aircraft Systems) 

flightcrew oxygen mask regulators, all part 

number (P/N) MA10, MC10, MC20, MF10, 

MF20, MLC20, MLD20, MRA005, MRA022, 

and MRA023 series; certificated in any 

category; installed on, but not limited to, 

airplanes manufactured by Airbus, ATR, BAE 

Systems (Type Certificate previously held by 

British Aerospace), Boeing, Bombardier 

(Type Certificate previously held by 

Canadair, De Havilland Canada), Cessna, 

Dassault, EADS CASA, EMBRAER, 

Gulfstream, Hawker Beechcraft (Type 

Certificate previously held by Raytheon, 

Beech), Israel Aircraft Industries (IAI), 

McDonnell Douglas, Piaggio, Pilatus, Piper, 

and SOCATA. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 35, Oxygen. 

(e) Reason 

This AD was prompted by a report of a 

malfunctioning mask having an inflatable 

harness with a high premature rupture rate 

due to defective silicon. We are issuing this 

AD to detect and correct defective harnesses, 

which could lead, in case of a sudden 

depressurization event, to a harness rupture, 

thereby providing inadequate protection 

against hypoxia and possibly resulting in 

unconsciousness of the affected flightcrew 

member and consequent reduced control of 

the airplane. 

(f) Compliance 

You are responsible for having the actions 

required by this AD performed within the 

compliance times specified, unless the 

actions have already been done. 

(g) Inspection 

Except as provided by paragraph (i) of this 

AD: Within 24 months after the effective date 

of this AD, inspect the inflatable harness 

fitted to each flightcrew oxygen mask 

regulator to determine if the inflatable 

harness is installed with a part number and 

a batch number identified in Appendix I of 

Zodiac Aerospace Service Bulletin MXH–35– 

240, Revision 7, dated September 1, 2011 (for 

all airplanes other than Bombardier 

airplanes); or Appendix I of Zodiac 

Aerospace Service Bulletin MXH–35–241, 

Revision 3, dated June 23, 2011 (for 

Bombardier airplanes). 

Note 1 to paragraph (g) of this AD: 

Referring only to Appendix II of Zodiac 

Aerospace Service Bulletin MXH–35–240, 

Revision 7, dated September 1, 2011; or 

Appendix II of Zodiac Aerospace Service 

Bulletin MXH–35–241, Revision 3, dated 

June 23, 2011; to identify a specific oxygen 

mask regulator is insufficient to demonstrate 

that the inflatable harness fitted to that 

oxygen mask regulator is not listed in 

Appendix I of Zodiac Aerospace Service 

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27086 Federal Register / Vol. 80, No. 91 / Tuesday, May 12, 2015 / Rules and Regulations 

Bulletin MXH–35–240, Revision 7, dated 

September 1, 2011; or Appendix I of Zodiac 

Aerospace Service Bulletin MXH–35–241, 

Revision 3, dated June 23, 2011. 

(h) Replacement 

If during the inspection required by 

paragraph (g) of this AD, an inflatable 

harness has a part number and batch number 

identified in Appendix I of Zodiac Aerospace 

Service Bulletin MXH–35–240, Revision 7, 

dated September 1, 2011 (for all airplanes 

other than Bombardier airplanes); or 

Appendix I of Zodiac Aerospace Service 

Bulletin MXH–35–241, Revision 3, dated 

June 23, 2011 (for Bombardier airplanes): 

Within 24 months after the effective date of 

this AD, replace the inflatable harness with 

a new or re-identified harness, in accordance 

with the Accomplishment Instructions of 

Zodiac Aerospace Service Bulletin MXH–35– 

240, Revision 7, dated September 1, 2011 (for 

all airplanes other than Bombardier 

airplanes); or Zodiac Aerospace Service 

Bulletin MXH–35–241, Revision 3, dated 

June 23, 2011 (for Bombardier airplanes). 

(i) Exception 

Oxygen mask regulators having a date of 

manufacturing (DMF) code of November 

2008 (112008 or 11–08) or earlier, and those 

with a DMF code of January 2011 (012011 or 

01–11) or later; and those having a part 

number listed in paragraph 1.A.(4), ‘‘Not 

Concerned Equipment,’’ of Zodiac Aerospace 

Service Bulletin MXH–35–240, Revision 7, 

dated September 1, 2011, are excluded from 

the inspection and replacement requirements 

of paragraphs (g) and (h) of this AD, provided 

it can be demonstrated that the inflatable 

harness has not been replaced on those 

masks with an inflatable harness having a 

part number and batch number identified in 

Appendix I of the applicable service 

information specified in paragraph (i)(1) or 

(i)(2) of this AD. A review of airplane 

delivery or maintenance records is acceptable 

to make the determination specified in this 

paragraph, if the part number and batch 

number of the harness assembly, and the 

DMF code of the mask assembly, can be 

conclusively determined from that review. 

(1) Zodiac Aerospace Service Bulletin 

MXH–35–240, Revision 7, dated September 

1, 2011 (for all airplanes other than 

Bombardier airplanes). 

(2) Zodiac Aerospace Service Bulletin 

MXH–35–241, Revision 3, dated June 23, 

2011 (for Bombardier airplanes). 

(j) Definition 

For the purpose of this AD, Bombardier 

airplanes include airplanes previously 

manufactured by Canadair or by De 

Havilland Canada. 

(k) Parts Installation Prohibition 

As of the effective date of this AD, no 

person may install a flightcrew oxygen mask 

regulator having a part number and batch 

number on the inflatable harness that is 

found in Appendix I of Zodiac Aerospace 

Service Bulletin MXH–35–240, Revision 7, 

dated September 1, 2011 (for all airplanes); 

on any airplane. Operators may determine if 

the part number and batch number are not 

listed in Appendix I of Zodiac Aerospace 

Service Bulletin MXH–35–240, Revision 7, 

dated September 1, 2011, by following the 

flow chart contained in paragraph 3., 

‘‘Accomplishment Instructions,’’ of Zodiac 

Aerospace Service Bulletin MXH–35–240, 

Revision 7, dated September 1, 2011. 

(l) Credit for Previous Actions 

This paragraph provides credit for actions 

required by paragraph (g) of this AD, if those 

actions were performed before the effective 

date of this AD using the service information 

specified in paragraphs (l)(1) through (l)(4) of 

this AD, as applicable, which are not 

incorporated by reference in this AD. 

(1) Zodiac Aerospace Service Bulletin 

MXH–35–240, Revision 6, dated August 16, 

2011 (for all airplanes other than Bombardier 

airplanes). 

(2) Zodiac Aerospace Service Bulletin 

MXH–35–240, Revision 5, dated July 26, 

2011 (for all airplanes other than Bombardier 

airplanes). 

(3) Zodiac Aerospace Service Bulletin 

MXH–35–240, Revision 4, dated June 10, 

2011 (for all airplanes other than Bombardier 

airplanes). 

(4) Zodiac Aerospace Service Bulletin 

MXH–35–241, Revision 2, dated May 19, 

2011 (for Bombardier airplanes). 

(m) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Boston Aircraft Certification 

Office (ACO) ANE–150, FAA, has the 

authority to approve AMOCs for this AD, if 

requested using the procedures found in 14 

CFR 39.19. In accordance with 14 CFR 39.19, 

send your request to your principal inspector 

or local Flight Standards District Office, as 

appropriate. If sending information directly 

to the ACO, send it to ATTN: Ian Lucas, 

Aerospace Engineer, Boston ACO, ANE–150, 

FAA, Engine and Propeller Directorate, 12 

New England Executive Park, Burlington, 

MA 01803; phone: 781–238–7757; fax: 781– 

238–7170. 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. 

(n) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) EASA 

Airworthiness Directive 2011–0090R1, dated 

July 13, 2011, for related information. This 

MCAI may be found in the AD docket on the 

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

!documentDetail;D=FAA-2012-1107-0003. 

(2) Service information identified in this 

AD that is not incorporated by reference is 

available at the addresses specified in 

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

(o) 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) Zodiac Aerospace Service Bulletin 

MXH–35–240, Revision 7, dated September 

1, 2011. 

(ii) Zodiac Aerospace Service Bulletin 

MXH–35–241, Revision 3, dated June 23, 

2011. 

(3) For Zodiac Aerospace service 

information identified in this AD, contact 

Zodiac Services, Technical Publication 

Department, Zodiac Aerotechnics, Oxygen 

Systems Europe, 61 Rue Pierre Curie– 

CS20001, 78373 Plaisir Cedex, France; 

phone: (33) 01 61 34 23 23; fax: (33) 01 30 

55 71 61; email: yann.laine@

zodiacaerospace.com; Internet: 

www.services.zodiacaerospace.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 April 10, 

2015. 

Jeffrey E. Duven, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2015–09467 Filed 5–11–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HOMELAND 

SECURITY 

Coast Guard 

33 CFR Part 100 

[Docket No. USCG–2011–0595] 

Special Local Regulation; Annual 

Kennewick, Washington, Columbia 

Unlimited Hydroplane Races 

AGENCY: Coast Guard, DHS. 

ACTION: Notice of enforcement of 

regulation. 

SUMMARY: The Coast Guard will enforce 

the special local regulation for the 

‘‘Annual Kennewick, Washington, 

Columbia Unlimited Hydroplane Races’’ 

from 8:30 a.m. to 7:30 p.m. each day, 

from July 24, 2015 through July 26, 

2015. This action is necessary to assist 

in minimizing the inherent dangers 

associated with hydroplane races. 

During the enforcement period, no 

person or vessel may enter the regulated 

area without permission from the Sector 

Columbia River Captain of the Port. 

DATES: The regulation in 33 CFR 

100.1303 will be enforced from 8:30 

a.m. until 7:30 p.m. on July 24, 2015 

through July 26, 2015. 

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