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PROPOSED AD BOMBARDIER, INC.: Docket No. FAA-2022-1646; Project Identifier MCAI-2022-01135-T.
(a) COMMENTS DUE DATE

    The FAA must receive comments on this airworthiness directive (AD)  by
    January 30, 2023.

(b) AFFECTED ADS

    None.

(c) APPLICABILITY

    This  AD applies  to Bombardier,  Inc.,  Model  BD-700-2A12 airplanes,
    certificated  in  any  category, serial  numbers  70006  through 70061
    inclusive.

(d) SUBJECT

    Air Transport Association (ATA) of America Code: 52, Doors.

(e) UNSAFE CONDITION

    This AD was  prompted by a  report that the  passenger door functional
    test engineering requirements (FTERs)  were not fully accomplished  on
    several  airplanes. The  FAA is  issuing this  AD to  ensure that  the
    passenger  door  is  properly rigged.  The  unsafe  condition, if  not
    addressed, could result  in higher loads  on the passenger  door stops
    that could initiate  cracks before the  intended design service  goal,
    and an in-flight opening of the passenger door.

(f) COMPLIANCE

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

(g) REQUIREMENTS

    Within 72  months after  the effective  date of  this AD,  measure the
    passenger door steps and gap values  on each lateral side of the  door
    at 8 points, and on the lower and upper sides of the door at 4 points,
    in  accordance  with  Part A  of  the  Accomplishment Instructions  of
    Bombardier Service  Bulletin 700-52-7511,  dated July  22, 2022.  Then
    accomplish the actions  specified by paragraph  (g)(1) or (2)  of this
    AD, as applicable.

(1) If any measurement is not within the specified limits,  before further
    flight, re-adjust  the passenger  door steps  and gaps  to obtain  the
    acceptable  (necessary)  values  in  accordance  with  Part  B  of the
    Accomplishment  Instructions  of  Bombardier  Service  Bulletin 700-52
    -7511, dated July 22, 2022.

(2) If all of the measurements are  within  the  specified limits,  before
    further flight,  with the  door in  the closed  position, measure  the
    passenger  door  stops  gaps  in   accordance  with  Part  C  of   the
    Accomplishment  Instructions  of  Bombardier  Service  Bulletin 700-52
    -7511,  dated  July  22,  2022.  If  any  passenger  door  stops  gaps
    measurement is not within the specified limits, before further flight,
    re-adjust  the   passenger  door   stops  to   obtain  the  acceptable
    (necessary) values  in accordance  with Part  D of  the Accomplishment
    Instructions of  Bombardier Service  Bulletin 700-52-7511,  dated July
    22, 2022.

(h) NO REPORTING REQUIREMENT

    Although Bombardier Service Bulletin 700-52-7511, dated July 22, 2022,
    specifies to submit certain  information to the manufacturer,  this AD
    does not include that requirement.

(i) ADDITIONAL 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
    responsible  Flight  Standards  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. Before using any approved AMOC, notify  your
    appropriate principal inspector, or lacking a principal inspector, the
    manager of the responsible Flight Standards 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;  or  Bombardier  Inc.'s Transport
    Canada Design Organization Approval (DOA). If approved by the DOA, the
    approval must include the DOA-authorized signature.

(j) ADDITIONAL INFORMATION

(1) Refer to Transport Canada AD CF-2022-48,  dated  August 18, 2022,  for
    related information. This Transport Canada  AD may be found in  the AD
    docket at regulations.gov under Docket No. FAA-2022-1646.

(2) For more information about this AD, contact Gabriel Kim, Aerospace En-
    gineer,  Mechanical Systems and Administrative Services Section,  FAA,
    New York  ACO Branch,  1600 Stewart Avenue,  Suite  410,  Westbury, NY
    11590; telephone (516) 228-7300; email 9-avs-nyaco-cos@faa.gov.

(k) MATERIAL INCORPORATED BY REFERENCE

(1) The Director of the Federal Register  approved  the  incorporation  by
    reference (IBR) of  the service information  listed in this  paragraph
    under 5 U.S.C. 552(a) and 1 CFR part 51.

(2) You must use this service information as applicable  to do the actions
    required by this AD, unless this AD specifies otherwise.

(i) Bombardier Service Bulletin 700-52-7511, dated July 22, 2022.

(ii) [Reserved]

(3) For service information identified in this AD, contact Bombardier Bus-
    iness Aircraft  Customer  Response  Center,  400 Cote-Vertu Road West,
    Dorval, Quebec H4S 1Y9, Canada;  telephone 514-855-2999; email ac.yul@
    aero.bombardier.com; website bombardier.com.

(4) You may view this service information at the FAA,  Airworthiness Prod-
    ucts Section,  Operational  Safety  Branch,  2200 South 216th St., Des
    Moines, WA.  For information  on the availability  of this material at
    the FAA, call (206) 231-3195.

(5) You may view  this service information  that is incorporated by refer-
    ence at the National Archives and Records Administration  (NARA).  For
    information on the availability  of this material  at NARA,  email fr.
    inspection@nara.gov,  or  go to www.archives.gov/federal-register/cfr/
    ibr-locations.html.

Issued on December 12, 2022. Christina Underwood, Acting Director, Compli-
ance & Airworthiness Division, Aircraft Certification Service.

DATES: The FAA must receive comments  on this  proposed AD  by January 30,
2023.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2022-1646; Project Identifier MCAI-2022-01135-T]
RIN 2120-AA64

Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain Bombardier, Inc., Model BD-700-2A12 airplanes. This
proposed AD was prompted by a report that the passenger door functional
test engineering requirements (FTERs) were not fully accomplished on
several airplanes. This proposed AD would require measuring the
passenger door steps, passenger door gaps, and passenger door stops
rigging, and re-adjusting the door if necessary. 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 January 30,
2023.

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 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.
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2022-1646; 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 mandatory continuing airworthiness
information (MCAI), any comments received, and other information. The
street address for Docket Operations is listed above.
Material Incorporated by Reference:
For service information identified in this NPRM, contact
Bombardier Business Aircraft Customer Response Center, 400 Cote-
Vertu Road West, Dorval, Quebec H4S 1Y9, Canada; telephone 514-
855-2999; email ac.yul@aero.bombardier.com; website bombardier.com.
You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 2200 South
216th St., Des Moines, WA. For information on the availability of this
material at the FAA, call (206) 231-3195.

FOR FURTHER INFORMATION CONTACT: Gabriel Kim, Aerospace Engineer,
Mechanical Systems and Administrative Services Section, FAA, New York
ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone (516) 228-7300; 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 ADDRESSES. Include ``Docket No. FAA-2022-1646; Project Identifier
MCAI-2022-01135-T'' at the beginning of your comments. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
this proposal because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
regulations.gov, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal contact
received about this NPRM.

Confidential Business Information

CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this NPRM contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this NPRM, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this NPRM. Submissions containing CBI should be sent to
Gabriel Kim, Aerospace Engineer, Mechanical Systems and Administrative
Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite
410, Westbury, NY 11590; telephone (516) 228-7300; email
9-avs-nyaco-cos@faa.gov. Any commentary that the FAA receives which is not
specifically designated as CBI will be placed in the public docket for
this rulemaking.

Background

Transport Canada, which is the aviation authority for Canada, has
issued AD CF-2022-48, dated September 1, 2022 (Transport Canada AD CF-
2022-48) (also referred to as the MCAI), to correct an unsafe condition
for certain Bombardier, Inc., Model BD-700-2A12 airplanes. The MCAI
states that non-conformities have been reported involving the passenger
door FTERs. It has been found that the FTER was not fully accomplished
on several airplanes with the assembled airplane in the weight-on-wheel
condition, which could affect the rigging of the passenger door. Door
mis-rigging could result in higher loads on the passenger door stops
that could initiate cracks before the intended design service goal, and
an in-flight opening of the passenger door.
You may examine the MCAI in the AD docket at regulations.gov under
Docket No. FAA-2022-1646.

Related Service Information Under 1 CFR Part 51

The FAA reviewed Bombardier Service Bulletin 700-52-7511, dated
July 22, 2022. This service information specifies procedures for
measuring the passenger door steps and gaps, rigging of the passenger
door stops, and corrective actions if the measurements are not within
the specified limits. This material is reasonably available because the
interested parties have access to it through their normal course of
business or by the means identified in ADDRESSES.

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
the FAA's bilateral agreement with the State of Design Authority, it
has notified the FAA of the unsafe condition described in the MCAI
described above. The FAA is issuing this NPRM after determining that
the unsafe condition described previously is likely to exist or develop
in other products of the same type design.

Proposed AD Requirements in This NPRM

This proposed AD would require accomplishing the actions specified
in the service information already described.

Costs of Compliance

The FAA estimates that this AD, if adopted as proposed, would
affect 29 airplanes of U.S. registry. The FAA estimates the following
costs to comply with this proposed AD:

Estimated Costs for Required Actions

Labor cost
Parts cost
Cost per product
Cost on U.S. operators
Up to 4 work-hours x $85 per hour = $340
$0
$340
$9,860

The FAA estimates the following costs to do any necessary on-
condition actions that would be required based on the results of any
required actions. The FAA has no way of determining the number of
aircraft that might need these on-condition actions:

Estimated Costs of On-Condition Actions

Labor cost
Parts cost
Cost per product
Up to 30 work-hours x $85 per hour = $3,400
$0
$3,400

The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some or all of the costs of
this proposed AD may be covered under warranty, thereby reducing the
cost impact on affected operators.

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) Would not affect intrastate aviation in Alaska, and
(3) Would 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

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]

2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive: