[Federal Register Volume 85, Number 56 (Monday, March 23, 2020)]
[Proposed Rules]
[Pages 16284-16286]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-05771]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2020-0203; Product Identifier 2019-NM-142-AD]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for certain Bombardier, Inc., Model CL-600-1A11 (600), CL-600-2A12 
(601), and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. 
This proposed AD was prompted by a report that fast and easy access to 
the portable oxygen bottle may be prevented by the portable oxygen 
bottle installation's upper bracket latch assembly catching on the 
pressure gauge tube or on the pressure gauge bezel of the portable 
oxygen bottle. This proposed AD would require a check to identify the 
manufacturer and part number of the portable oxygen bottle 
installation, and, if necessary, modification of the portable oxygen 
bottle installation. The FAA is proposing this AD to address the unsafe 
condition on these products.

DATES: The FAA must receive comments on this proposed AD by May 7, 
2020.

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 https://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 
Bombardier, Inc., 200 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec 
H4S 2A3, Canada; North America toll-free telephone 1-866-538-1247 or 
direct-dial telephone 1-514-855-2999; email ac.yul@aero.bombardier.com; 
internet https://www.bombardier.com. You may view this service 
information at the FAA, Transport Standards Branch, 2200 South 216th 
St., Des Moines, WA. For information on the availability of this 
material at the FAA, call 206-231-3195.

Examining the AD Docket

    You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2020-
0203; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this NPRM, the regulatory evaluation, any comments received, and other 
information. The street address for Docket Operations is listed above. 
Comments will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Darren Gassetto, Aerospace Engineer, 
Mechanical Systems and Administrative Services Section, FAA, New York 
ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; 
telephone 516-228-7323; fax 516-794-5531; email 9-avs-nyaco-cos@faa.gov.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    The FAA invites 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-2020-0203; 
Product Identifier 2019-NM-142-AD'' at the beginning of your comments. 
The FAA specifically invites comments on the overall regulatory, 
economic, environmental, and energy aspects of this NPRM. The FAA will 
consider all comments received by the closing date and may amend this 
NPRM because of those comments.
    The FAA will post all comments received, without change, to https://www.regulations.gov, including any personal information you provide. 
The FAA will also post a report summarizing each substantive verbal 
contact received about this NPRM.

Discussion

    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian AD CF-2019-26, dated July 9, 
2019 (referred to after this as the Mandatory Continuing Airworthiness 
Information, or ``the MCAI''), to correct an unsafe condition for 
certain Bombardier, Inc., Model CL-600-1A11 (600), CL-600-2A12 (601), 
and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes.
    This proposed AD was prompted by a report that fast and easy access 
to the portable oxygen bottle may be prevented by the portable oxygen 
bottle installation's upper bracket latch assembly catching on the 
pressure gauge tube or on the pressure gauge bezel of the portable 
oxygen bottle. The FAA is proposing this AD to address this condition, 
which, if not detected and corrected, could prevent fast and easy 
access to the portable oxygen bottle in an emergency situation. See the 
MCAI for additional background information.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued the following service information:
     Bombardier Service Bulletin 600-0772, dated June 29, 2018;
     Bombardier Service Bulletin 601-0646, dated June 29, 2018;
     Bombardier Service Bulletin 604-35-006, dated June 29, 
2018;

[[Page 16285]]

     Bombardier Service Bulletin 605-35-005, dated June 29, 
2018;
     Bombardier Service Bulletin 650-35-001, dated June 29, 
2018.
    This service information describes procedures for a check to 
identify the manufacturer and part number of the portable oxygen bottle 
installation, and, if necessary, modification of the portable oxygen 
bottle installation. These documents are distinct since they apply to 
different airplane models. 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

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to a bilateral agreement with the State of Design Authority, the FAA 
has been notified of the unsafe condition described in the MCAI and 
service information referenced above. The FAA is proposing this AD 
because the agency evaluated all the relevant information and 
determined the unsafe condition described previously is likely to exist 
or develop on other products of the same type design.

Proposed Requirements of This NPRM

    This proposed AD would require accomplishing the actions specified 
in the service information described previously, except as discussed 
under ``Differences Between this Proposed AD and the MCAI or Service 
Information.''

Differences Between This Proposed AD and the MCAI or Service 
Information

    The MCAI specifies that airplanes having serial numbers not listed 
in the applicable service information must do certain actions in 
accordance with the applicable service information. This proposed AD 
would require airplanes having serial numbers not listed in the 
applicable service information to do those actions in accordance with 
the procedures specified in paragraph (j)(2) of this proposed AD.

Costs of Compliance

    The FAA estimates that this proposed AD affects 188 airplanes of 
U.S. registry. The FAA estimates the following costs to comply with 
this proposed AD:

                                      Estimated Costs for Required Actions
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              Labor cost                      Parts cost            Cost per product      Cost on U.S. operators
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3 work-hours x $85 per hour = $255     $1,530 per installation  $1,785 per installation  $335,580 per
 per installation..                                                                       installation
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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.
    The FAA is 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

    The FAA 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) Will not affect intrastate aviation in Alaska, and
    (3) 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):

Bombardier, Inc.: Docket No. FAA-2020-0203; Product Identifier 2019-
NM-142-AD.

(a) Comments Due Date

    We must receive comments by May 7, 2020.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to the Bombardier, Inc., airplanes identified in 
paragraphs (c)(1) through (3), certificated in any category, 
equipped with Scott (Avox/Zodiac) 5500 or 5600 series 11 cubic foot 
portable oxygen bottle(s) with upper bracket part number (P/N) 
36758-02, P/N 36758-12 or P/N H3-2091-1 installed at the neck of the 
bottle(s).
    (1) Model CL-600-1A11 (600) airplanes, serial numbers 1004 
through 1085 inclusive.
    (2) Model CL-600-2A12 (601) airplanes, serial numbers 3001 
through 3066 inclusive.
    (3) Model CL-600-2B16 (601-3A, 601-3R, and 604 Variants) 
airplanes, serial numbers 5001 through 5194 inclusive, 5301 through 
5665 inclusive, 5701 through 5988 inclusive, and 6050 through 6119 
inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 35, Oxygen.

(e) Reason

    This AD was prompted by a report that fast and easy access to 
the portable oxygen bottle may be prevented by the portable oxygen 
bottle installation's upper bracket latch assembly catching on the 
pressure gauge tube or on the pressure gauge bezel of the portable 
oxygen bottle. The FAA is proposing this AD to address this 
condition, which, if not detected and corrected, could prevent fast 
and easy access to the portable oxygen bottle in an emergency 
situation.

(f) Compliance

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

[[Page 16286]]

(g) Portable Oxygen Bottle Check

    For airplanes with a serial number listed in Section 1.A of the 
applicable Bombardier service information specified in figure 1 to 
paragraphs (g), (h), and (i) of this AD: Within 60 months after the 
effective date of this AD, check each portable oxygen bottle 
installation to determine the manufacturer and P/N, in accordance 
with paragraph 2.B. of the Accomplishment Instructions of the 
applicable Bombardier service information specified in figure 1 to 
paragraphs (g), (h), and (i) of this AD.
[GRAPHIC] [TIFF OMITTED] TP23MR20.010

(h) Bracket Modifications

    If, during the inspection specified in paragraph (g) of this AD, 
any portable oxygen bottle is found to be manufactured by Scott 
(Avox/Zodiac) and is a 5500 or 5600 series 11 cubic foot bottle, 
with upper bracket P/N 36758-02, 36758-12, or H3-2091-1 installed at 
the neck of the bottle: Modify the portable oxygen bottle brackets 
in accordance with the paragraph 2.C. of the Accomplishment 
Instructions of the applicable Bombardier service information 
specified in figure 1 to paragraphs (g), (h), and (i) of this AD.

(i) Portable Oxygen Bottle Check and Corrective Actions for Airplanes 
Not Listed in the Service Information

    For airplanes with a serial number that is not listed in section 
1.A of the applicable Bombardier service information specified in 
figure 1 to paragraphs (g), (h), and (i) of this AD: Within 60 
months after the effective date of this AD, check each portable 
oxygen bottle installation to determine the manufacturer and part 
number and accomplish corrective actions in accordance with the 
procedures specified in paragraph (j)(2) of this AD.

(j) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York ACO Branch, 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 certification 
office, send it to ATTN: Program Manager, Continuing Operational 
Safety, FAA, New York ACO Branch, 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.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain instructions from a manufacturer, the instructions must be 
accomplished using a method approved by the Manager, New York ACO 
Branch, FAA; or Transport Canada Civil Aviation (TCCA); or 
Bombardier's TCCA Design Approval Organization (DAO). If approved by 
the DAO, the approval must include the DAO-authorized signature.

(k) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian AD CF-2019-26, dated July 9, 2019, for related 
information. This MCAI may be found in the AD docket on the internet 
at https://www.regulations.gov by searching for and locating Docket 
No. FAA-2020-0203.
    (2) For more information about this AD, contact Darren Gassetto, 
Aerospace Engineer, Mechanical Systems and Administrative Services 
Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, 
Westbury, NY 11590; telephone 516-228-7323; fax 516-794-5531; email 
9-avs-nyaco-cos@faa.gov.
    (3) For service information identified in this AD, contact 
Bombardier, Inc., 200 C[ocirc]te-Vertu Road West, Dorval, 
Qu[eacute]bec H4S 2A3, Canada; North America toll-free telephone 1-
866-538-1247 or direct-dial telephone 1-514-855-2999; email 
ac.yul@aero.bombardier.com; internet https://www.bombardier.com. You 
may view this service information at the FAA, Transport Standards 
Branch, 2200 South 216th St., Des Moines, WA. For information on the 
availability of this material at the FAA, call 206-231-3195.

    Issued on March 13, 2020.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2020-05771 Filed 3-20-20; 8:45 am]
BILLING CODE 4910-13-P


