81_FR_87727 81 FR 87494 - Airworthiness Directives; The Boeing Company Airplanes

81 FR 87494 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 233 (December 5, 2016)

Page Range87494-87496
FR Document2016-28631

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-800, -900, and -900ER series airplanes. This proposed AD was prompted by reports indicating in- flight valve failure of the left temperature control valve and control cabin trim air modulating valve. This proposed AD would require replacing the left temperature control valve and control cabin trim air modulating valve. We are proposing this AD to address the unsafe condition on these products.

Federal Register, Volume 81 Issue 233 (Monday, December 5, 2016) 
[Federal Register Volume 81, Number 233 (Monday, December 5, 2016)]
[Proposed Rules]
[Pages 87494-87496]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-28631]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-9432; Directorate Identifier 2016-NM-116-AD]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain The Boeing Company Model 737-800, -900, and -900ER series 
airplanes. This proposed AD was prompted by reports indicating in-
flight valve failure of the left temperature control valve and control 
cabin trim air modulating valve. This proposed AD would require 
replacing the left temperature control valve and control cabin trim air 
modulating valve. We are proposing this AD to address the unsafe 
condition on these products.

DATES: We must receive comments on this proposed AD by January 19, 
2017.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact Boeing 
Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 
2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600; 
telephone 562-797-1717; Internet https://www.myboeingfleet.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-2016-9432.

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-2016-
9432; 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 proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will 
be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Stanley Chen, Aerospace Engineer, 
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle 
Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 
98057-3356; phone: 425-917-6585; fax: 425-917-6590; email: 
[email protected].

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2016-9432; 
Directorate Identifier 2016-NM-116-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    We have received reports indicating in-flight valve failure of the 
left temperature control valve and control cabin trim air modulating 
valve. These valves can fail in their open positions causing elevated 
temperatures in the flight deck or the passenger cabin during cruise. 
Operators have reported events where they were unable to control the 
flight deck and passenger cabin temperatures during cruise. This 
condition, if not corrected, could result in temperatures in excess of 
100 degrees Fahrenheit in the flight deck or the passenger cabin during 
cruise, which

[[Page 87495]]

could lead to the impairment of the flightcrew and consequent risk of 
loss of continued safe flight and landing. Such elevated temperatures 
could result in diverted flights since the flight deck door cannot be 
opened for an extended time during cruise. Airplanes on extended 
operation routes are most at risk because they can be 3 hours away from 
the nearest airport.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin 737-21A1203, dated June 
8, 2016. The service information describes procedures for replacing the 
left temperature control valve and control cabin trim air modulating 
valve, part number 398908-4, with new part number 398908-3 or 398908-5. 
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.

FAA's Determination

    We are proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type design.

Proposed AD Requirements

    This proposed AD would require accomplishing the actions specified 
in the service information described previously. For information on the 
procedures and compliance times, see this service information at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-
9432.

Costs of Compliance

    We estimate that this proposed AD affects 319 airplanes of U.S. 
registry. We estimate the following costs to comply with this proposed 
AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                  Cost on U.S.
             Action                     Labor cost           Parts cost     Cost per product       operators
----------------------------------------------------------------------------------------------------------------
Replacement of valves..........  9 work-hours x $85 per           $4,800   $5,565 per          $1,775,235 per
                                  hour = $765 per                           replacement.        replacement.
                                  replacement.
----------------------------------------------------------------------------------------------------------------

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 proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify this proposed 
regulation:
    (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.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13   [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

The Boeing Company: Docket No. FAA-2016-9432; Directorate Identifier 
2016-NM-116-AD.

(a) Comments Due Date

    We must receive comments by January 19, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to The Boeing Company Model 737-800, -900, and -
900ER series airplanes, certificated in any category, as identified 
in Boeing Alert Service Bulletin 737-21A1203, dated June 8, 2016.

(d) Subject

    Air Transport Association (ATA) of America Code 21, Air 
conditioning.

(e) Unsafe Condition

    This AD was prompted by reports indicating in-flight valve 
failure of the left temperature control valve and control cabin trim 
air modulating valve. We are issuing this AD to prevent temperatures 
in excess of 100 degrees Fahrenheit in the flight deck or the 
passenger cabin during cruise, which could lead to the impairment of 
the flightcrew and consequent risk of loss of continued safe flight 
and landing.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Replacement of the Left Temperature Control Valve and Control Cabin 
Trim Air Modulating Valve

    Within 60 months after the effective date of this AD, replace 
the left temperature control valve and control cabin trim air 
modulating valve, in accordance with the Accomplishment Instructions 
of Boeing Alert Service Bulletin 737-21A1203, dated June 8, 2016.

(h) Parts Installation Prohibition

    As of the effective date of this AD, no person may install a 
temperature control valve, part number 398908-4, on either the left 
temperature control valve location or the control cabin trim air 
modulating valve location on any Model 737-800, -900, or -900ER 
airplane.

[[Page 87496]]

(i) Exception to the Service Information

    Where paragraph 1.E., ``Compliance,'' of Boeing Alert Service 
Bulletin 737-21A1203, dated June 8, 2016, specifies a compliance 
time ``after the original issue date of this service bulletin,'' 
this AD requires compliance within the specified compliance time 
after the effective date of this AD.

(j) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle Aircraft Certification Office (ACO), 
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 manager of the ACO, send it to the 
attention of the person identified in paragraph (k)(1) of this AD. 
Information may be emailed to: [email protected].
    (2) 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.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair, modification, or alteration required by this AD 
if it is approved by the Boeing Commercial Airplanes Organization 
Designation Authorization (ODA) that has been authorized by the 
Manager, Seattle ACO, to make those findings. To be approved, the 
repair method, modification deviation, or alteration deviation must 
meet the certification basis of the airplane, and the approval must 
specifically refer to this AD.
    (4) For service information that contains steps that are labeled 
as Required for Compliance (RC), the provisions of paragraphs 
(j)(4)(i) and (j)(4)(ii) of this AD apply.
    (i) The steps labeled as RC, including substeps under an RC step 
and any figures identified in an RC step, must be done to comply 
with the AD. If a step or substep is labeled ``RC Exempt,'' then the 
RC requirement is removed from that step or substep. An AMOC is 
required for any deviations to RC steps, including substeps and 
identified figures.
    (ii) Steps not labeled as RC may be deviated from using accepted 
methods in accordance with the operator's maintenance or inspection 
program without obtaining approval of an AMOC, provided the RC 
steps, including substeps and identified figures, can still be done 
as specified, and the airplane can be put back in an airworthy 
condition.

(k) Related Information

    (1) For more information about this AD, contact: Stanley Chen, 
Aerospace Engineer, Cabin Safety and Environmental Systems Branch, 
ANM-150S, FAA, Seattle Aircraft Certification Office (ACO), 1601 
Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6585; fax: 
425-917-6590; email: [email protected].
    (2) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Contractual & Data Services 
(C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-
5600; telephone 562-797-1717; Internet https://www.myboeingfleet.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.

    Issued in Renton, Washington, on November 17, 2016.
Phil Forde,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-28631 Filed 12-2-16; 8:45 am]
BILLING CODE 4910-13-P

87494 Federal Register / Vol. 81, No. 233 / Monday, December 5, 2016 / Proposed Rules comment period to provide for a 90 day DEPARTMENT OF TRANSPORTATION Examining the AD Docket total comment period. (AGA/APGA, No. You may examine the AD docket on 232 at p. 1; Spire, No. 234 at p. 14; Federal Aviation Administration the Internet at http:// APGA, No. 235 at p. 2; Lennox, No. 245 www.regulations.gov by searching for at pp. 1–2; Heating, Air-conditioning, 14 CFR Part 39 and locating Docket No. FAA–2016– and Refrigeration Distributors [Docket No. FAA–2016–9432; Directorate 9432; or in person at the Docket International and Air-Conditioning Identifier 2016–NM–116–AD] Management Facility between 9 a.m. Contractors of America, No. 251 at p. 1; RIN 2120–AA64 and 5 p.m., Monday through Friday, APGA, SNOPR Public Meeting except Federal holidays. The AD docket Transcript, No. 243 at p. 31) Some Airworthiness Directives; The Boeing contains this proposed AD, the commenters subsequently submitted Company Airplanes regulatory evaluation, any comments requests for an even longer extension, received, and other information. The equivalent to a total 120 day comment AGENCY: Federal Aviation street address for the Docket Office Administration (FAA), DOT. (phone: 800–647–5527) is in the period. (Spire, No. 241 at pp. 1–2; AGA/ APGA, No. 242 at pp. 1–2; AHRI, No. ACTION: Notice of proposed rulemaking ADDRESSES section. Comments will be 244 at p. 1; Carrier, No. 250 at p. 1) (NPRM). available in the AD docket shortly after Spire submitted an additional comment receipt. SUMMARY: We propose to adopt a new that a 90-day comment period would be FOR FURTHER INFORMATION CONTACT: airworthiness directive (AD) for certain acceptable, and AGA requested that Stanley Chen, Aerospace Engineer, The Boeing Company Model 737–800, DOE issue a written response to the Cabin Safety and Environmental –900, and –900ER series airplanes. This comment period extension requests. Systems Branch, ANM–150S, FAA, proposed AD was prompted by reports (Spire, No. 247 at p.1; AGA, No. 249 at Seattle Aircraft Certification Office indicating in-flight valve failure of the p.1) In general, commenters suggested (ACO), 1601 Lind Avenue SW., Renton, left temperature control valve and WA 98057–3356; phone: 425–917–6585; that the quantity of supplemental control cabin trim air modulating valve. fax: 425–917–6590; email: information supporting the rulemaking This proposed AD would require stanley.chen@faa.gov. analysis warranted additional time for replacing the left temperature control valve and control cabin trim air SUPPLEMENTARY INFORMATION: review. The National Resource Defense Council (NRDC) suggested that DOE’s modulating valve. We are proposing this Comments Invited extension from the 30-day comment AD to address the unsafe condition on We invite you to send any written period in the pre-publication notice to these products. relevant data, views, or arguments about the 60-day period at publication DATES: We must receive comments on this proposal. Send your comments to represented a delay, and recommended this proposed AD by January 19, 2017. an address listed under the ADDRESSES that DOE not extend the comment ADDRESSES: You may send comments, section. Include ‘‘Docket No. FAA– period any further. (NRDC, SNOPR using the procedures found in 14 CFR 2016–9432; Directorate Identifier 2016– Public Meeting Transcript, No. 243 at p. 11.43 and 11.45, by any of the following NM–116–AD’’ at the beginning of your 50) methods: comments. We specifically invite • Federal eRulemaking Portal: Go to comments on the overall regulatory, In view of the requests for an http://www.regulations.gov. Follow the economic, environmental, and energy additional comment period extension instructions for submitting comments. aspects of this proposed AD. We will for the September 2016 SNOPR, DOE • Fax: 202–493–2251. has determined that a reopening of the consider all comments received by the • Mail: U.S. Department of closing date and may amend this public comment period and a 45-day Transportation, Docket Operations, proposed AD because of those extension to January 6, 2017 for the M–30, West Building Ground Floor, comments. September 2016 SNOPR is appropriate. Room W12–140, 1200 New Jersey We will post all comments we The comment period is reopened until Avenue SE., Washington, DC 20590. receive, without change, to http:// January 6, 2017. DOE further notes that • Hand Delivery: Deliver to Mail www.regulations.gov, including any any submissions of comments or other address above between 9 a.m. and 5 personal information you provide. We information submitted between the p.m., Monday through Friday, except will also post a report summarizing each original comment end date and January Federal holidays. substantive verbal contact we receive 6, 2017 will be deemed timely filed. For service information identified in about this proposed AD. Issued in Washington, DC, on November this NPRM, contact Boeing Commercial Airplanes, Attention: Contractual & Data Discussion 21, 2016. Services (C&DS), 2600 Westminster We have received reports indicating Kathleen B. Hogan, Blvd., MC 110–SK57, Seal Beach, CA in-flight valve failure of the left Deputy Assistant Secretary for Energy 90740–5600; telephone 562–797–1717; temperature control valve and control Efficiency, Energy Efficiency and Renewable Internet https:// cabin trim air modulating valve. These Energy. www.myboeingfleet.com. You may view valves can fail in their open positions [FR Doc. 2016–29080 Filed 12–2–16; 8:45 am] this referenced service information at causing elevated temperatures in the BILLING CODE 6450–01–P the FAA, Transport Airplane flight deck or the passenger cabin sradovich on DSK3GMQ082PROD with PROPOSALS Directorate, 1601 Lind Avenue SW., during cruise. Operators have reported Renton, WA. For information on the events where they were unable to availability of this material at the FAA, control the flight deck and passenger call 425–227–1221. It is also available cabin temperatures during cruise. This on the internet at http:// condition, if not corrected, could result www.regulations.gov by searching for in temperatures in excess of 100 degrees and locating Docket No. FAA–2016– Fahrenheit in the flight deck or the 9432. passenger cabin during cruise, which VerDate Sep<11>2014 17:33 Dec 02, 2016 Jkt 241001 PO 00000 Frm 00009 Fmt 4702 Sfmt 4702 E:\FR\FM\05DEP1.SGM 05DEP1

Federal Register / Vol. 81, No. 233 / Monday, December 5, 2016 / Proposed Rules 87495 could lead to the impairment of the temperature control valve and control Proposed AD Requirements flightcrew and consequent risk of loss of cabin trim air modulating valve, part continued safe flight and landing. Such number 398908–4, with new part This proposed AD would require elevated temperatures could result in number 398908–3 or 398908–5. This accomplishing the actions specified in diverted flights since the flight deck service information is reasonably the service information described door cannot be opened for an extended available because the interested parties previously. For information on the time during cruise. Airplanes on have access to it through their normal procedures and compliance times, see extended operation routes are most at course of business or by the means this service information at http:// risk because they can be 3 hours away identified in the ADDRESSES section. www.regulations.gov by searching for from the nearest airport. and locating Docket No. FAA–2016– FAA’s Determination 9432. Related Service Information Under We are proposing this AD because we 1 CFR Part 51 Costs of Compliance evaluated all the relevant information We reviewed Boeing Alert Service and determined the unsafe condition We estimate that this proposed AD Bulletin 737–21A1203, dated June 8, described previously is likely to exist or affects 319 airplanes of U.S. registry. We 2016. The service information describes develop in other products of the same estimate the following costs to comply procedures for replacing the left type design. with this proposed AD: ESTIMATED COSTS Action Labor cost Parts cost Cost per product Cost on U.S. operators Replacement of valves .. 9 work-hours × $85 per hour = $765 per re- $4,800 $5,565 per replacement $1,775,235 per replace- placement. ment. Authority for This Rulemaking Procedures (44 FR 11034, February 26, (c) Applicability 1979), This AD applies to The Boeing Company Title 49 of the United States Code (3) Will not affect intrastate aviation Model 737–800, –900, and –900ER series specifies the FAA’s authority to issue in Alaska, and airplanes, certificated in any category, as rules on aviation safety. Subtitle I, identified in Boeing Alert Service Bulletin section 106, describes the authority of (4) Will not have a significant 737–21A1203, dated June 8, 2016. the FAA Administrator. Subtitle VII: economic impact, positive or negative, Aviation Programs, describes in more (d) Subject on a substantial number of small entities detail the scope of the Agency’s under the criteria of the Regulatory Air Transport Association (ATA) of authority. Flexibility Act. America Code 21, Air conditioning. We are issuing this rulemaking under (e) Unsafe Condition the authority described in Subtitle VII, List of Subjects in 14 CFR Part 39 This AD was prompted by reports Part A, Subpart III, Section 44701: Air transportation, Aircraft, Aviation indicating in-flight valve failure of the left ‘‘General requirements.’’ Under that safety, Incorporation by reference, temperature control valve and control cabin section, Congress charges the FAA with Safety. trim air modulating valve. We are issuing this promoting safe flight of civil aircraft in AD to prevent temperatures in excess of 100 air commerce by prescribing regulations The Proposed Amendment degrees Fahrenheit in the flight deck or the for practices, methods, and procedures passenger cabin during cruise, which could the Administrator finds necessary for Accordingly, under the authority lead to the impairment of the flightcrew and safety in air commerce. This regulation delegated to me by the Administrator, consequent risk of loss of continued safe is within the scope of that authority the FAA proposes to amend 14 CFR part flight and landing. because it addresses an unsafe condition 39 as follows: (f) Compliance that is likely to exist or develop on PART 39—AIRWORTHINESS Comply with this AD within the products identified in this rulemaking DIRECTIVES compliance times specified, unless already action. done. Regulatory Findings ■ 1. The authority citation for part 39 (g) Replacement of the Left Temperature continues to read as follows: Control Valve and Control Cabin Trim Air We determined that this proposed AD Modulating Valve would not have federalism implications Authority: 49 U.S.C. 106(g), 40113, 44701. under Executive Order 13132. This Within 60 months after the effective date § 39.13 [Amended] of this AD, replace the left temperature proposed AD would not have a control valve and control cabin trim air substantial direct effect on the States, on ■ 2. The FAA amends § 39.13 by adding modulating valve, in accordance with the the relationship between the national the following new airworthiness Accomplishment Instructions of Boeing Alert Government and the States, or on the directive (AD): Service Bulletin 737–21A1203, dated June 8, distribution of power and 2016. sradovich on DSK3GMQ082PROD with PROPOSALS The Boeing Company: Docket No. FAA– responsibilities among the various 2016–9432; Directorate Identifier 2016– (h) Parts Installation Prohibition levels of government. NM–116–AD. For the reasons discussed above, I As of the effective date of this AD, no (a) Comments Due Date person may install a temperature control certify this proposed regulation: We must receive comments by January 19, valve, part number 398908–4, on either the (1) Is not a ‘‘significant regulatory left temperature control valve location or the 2017. action’’ under Executive Order 12866, control cabin trim air modulating valve (2) Is not a ‘‘significant rule’’ under (b) Affected ADs location on any Model 737–800, -900, or the DOT Regulatory Policies and None. -900ER airplane. VerDate Sep<11>2014 17:33 Dec 02, 2016 Jkt 241001 PO 00000 Frm 00010 Fmt 4702 Sfmt 4702 E:\FR\FM\05DEP1.SGM 05DEP1

87496 Federal Register / Vol. 81, No. 233 / Monday, December 5, 2016 / Proposed Rules (i) Exception to the Service Information Services (C&DS), 2600 Westminster Blvd., p.m., Monday through Friday, except Where paragraph 1.E., ‘‘Compliance,’’ of MC 110–SK57, Seal Beach, CA 90740–5600; Federal holidays. Boeing Alert Service Bulletin 737–21A1203, telephone 562–797–1717; Internet https:// For service information identified in dated June 8, 2016, specifies a compliance www.myboeingfleet.com. You may view this this NPRM, contact Boeing Commercial time ‘‘after the original issue date of this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Airplanes, Attention: Contractual & Data service bulletin,’’ this AD requires Services (C&DS), 2600 Westminster compliance within the specified compliance Avenue SW., Renton, WA. For information on the availability of this material at the Blvd., MC 110–SK57, Seal Beach, CA time after the effective date of this AD. FAA, call 425–227–1221. 90740; telephone 562–797–1717; (j) Alternative Methods of Compliance Internet https:// (AMOCs) Issued in Renton, Washington, on November 17, 2016. www.myboeingfleet.com. You may view (1) The Manager, Seattle Aircraft Phil Forde, this referenced service information at Certification Office (ACO), FAA, has the the FAA, Transport Airplane authority to approve AMOCs for this AD, if Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. Directorate, 1601 Lind Avenue SW., requested using the procedures found in 14 Renton, WA. For information on the CFR 39.19. In accordance with 14 CFR 39.19, [FR Doc. 2016–28631 Filed 12–2–16; 8:45 am] send your request to your principal inspector availability of this material at the FAA, BILLING CODE 4910–13–P or local Flight Standards District Office, as call 425–227–1221. It is also available appropriate. If sending information directly on the Internet at http:// to the manager of the ACO, send it to the www.regulations.gov by searching for DEPARTMENT OF TRANSPORTATION attention of the person identified in and locating Docket No. FAA–2016– paragraph (k)(1) of this AD. Information may 9434. Federal Aviation Administration be emailed to: 9-ANM-Seattle-ACO-AMOC- Requests@faa.gov. Examining the AD Docket (2) Before using any approved AMOC, 14 CFR Part 39 You may examine the AD docket on notify your appropriate principal inspector, or lacking a principal inspector, the manager [Docket No. FAA–2016–9434; Directorate the Internet at http:// of the local flight standards district office/ Identifier 2016–NM–136–AD] www.regulations.gov by searching for certificate holding district office. and locating Docket No. FAA–2016– RIN 2120–AA64 9434; or in person at the Docket (3) An AMOC that provides an acceptable level of safety may be used for any repair, Management Facility between 9 a.m. modification, or alteration required by this Airworthiness Directives; The Boeing and 5 p.m., Monday through Friday, AD if it is approved by the Boeing Company Airplanes except Federal holidays. The AD docket Commercial Airplanes Organization AGENCY: Federal Aviation contains this proposed AD, the Designation Authorization (ODA) that has Administration (FAA), DOT. regulatory evaluation, any comments been authorized by the Manager, Seattle ACO, to make those findings. To be ACTION: Notice of proposed rulemaking received, and other information. The approved, the repair method, modification (NPRM). street address for the Docket Office deviation, or alteration deviation must meet (phone: 800–647–5527) is in the the certification basis of the airplane, and the SUMMARY: We propose to adopt a new ADDRESSES section. Comments will be approval must specifically refer to this AD. airworthiness directive (AD) for certain available in the AD docket shortly after (4) For service information that contains The Boeing Company Model 737–600, receipt. steps that are labeled as Required for –700, –700C, –800, and –900 series FOR FURTHER INFORMATION CONTACT: Compliance (RC), the provisions of airplanes. This proposed AD was paragraphs (j)(4)(i) and (j)(4)(ii) of this AD Alan Pohl, Aerospace Engineer, prompted by an evaluation by the Airframe Branch, ANM–120S, FAA, apply. (i) The steps labeled as RC, including design approval holder (DAH) Seattle Aircraft Certification Office substeps under an RC step and any figures indicating that the web lap splices in (ACO), 1601 Lind Avenue SW., Renton, identified in an RC step, must be done to the aft pressure bulkhead are subject to WA 98057–3356; phone: 425–917–6450; comply with the AD. If a step or substep is widespread fatigue damage (WFD). This fax: 425–917–6590; email: alan.pohl@ labeled ‘‘RC Exempt,’’ then the RC proposed AD would require repetitive faa.gov. requirement is removed from that step or inspections of the web lap splices in the substep. An AMOC is required for any SUPPLEMENTARY INFORMATION: aft pressure bulkhead for cracking of the deviations to RC steps, including substeps fastener holes, and repair if necessary. Comments Invited and identified figures. We are proposing this AD to address the We invite you to send any written (ii) Steps not labeled as RC may be deviated from using accepted methods in unsafe condition on these products. relevant data, views, or arguments about accordance with the operator’s maintenance DATES: We must receive comments on this proposal. Send your comments to or inspection program without obtaining this proposed AD by January 19, 2017. an address listed under the ADDRESSES approval of an AMOC, provided the RC steps, ADDRESSES: You may send comments, section. Include ‘‘Docket No. FAA– including substeps and identified figures, can using the procedures found in 14 CFR 2016–9434; Directorate Identifier 2016– still be done as specified, and the airplane can be put back in an airworthy condition. 11.43 and 11.45, by any of the following NM–136–AD’’ at the beginning of your methods: comments. We specifically invite (k) Related Information • Federal eRulemaking Portal: Go to comments on the overall regulatory, (1) For more information about this AD, http://www.regulations.gov. Follow the economic, environmental, and energy contact: Stanley Chen, Aerospace Engineer, instructions for submitting comments. aspects of this proposed AD. We will sradovich on DSK3GMQ082PROD with PROPOSALS Cabin Safety and Environmental Systems • Fax: 202–493–2251. consider all comments received by the Branch, ANM–150S, FAA, Seattle Aircraft • Mail: U.S. Department of closing date and may amend this Certification Office (ACO), 1601 Lind Avenue Transportation, Docket Operations, proposed AD because of those SW., Renton, WA 98057–3356; phone: 425– 917–6585; fax: 425–917–6590; email: M–30, West Building Ground Floor, comments. stanley.chen@faa.gov. Room W12–140, 1200 New Jersey We will post all comments we (2) For service information identified in Avenue SE., Washington, DC 20590. receive, without change, to http:// this AD, contact Boeing Commercial • Hand Delivery: Deliver to Mail www.regulations.gov, including any Airplanes, Attention: Contractual & Data address above between 9 a.m. and 5 personal information you provide. We VerDate Sep<11>2014 17:33 Dec 02, 2016 Jkt 241001 PO 00000 Frm 00011 Fmt 4702 Sfmt 4702 E:\FR\FM\05DEP1.SGM 05DEP1


Document Created: 2016-12-03 00:26:07
Document Modified: 2016-12-03 00:26:07
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotice of proposed rulemaking (NPRM).
DatesWe must receive comments on this proposed AD by January 19, 2017.
ContactStanley Chen, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6585; fax: 425-917-6590; email: [email protected]
FR Citation81 FR 87494 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
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