[Federal Register Volume 87, Number 158 (Wednesday, August 17, 2022)]
[Rules and Regulations]
[Pages 50560-50563]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-17789]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2022-0990; Project Identifier MCAI-2022-00372-T; 
Amendment 39-22137; AD 2022-16-08]
RIN 2120-AA64


Airworthiness Directives; Airbus Canada Limited Partnership (Type 
Certificate Previously Held by C Series Aircraft Limited Partnership 
(CSALP); Bombardier, Inc.) Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-
1A11 airplanes. This AD was prompted by a dual-engine automatic 
shutdown on landing. This AD requires revising the existing airplane 
flight manual (AFM) to incorporate a new normal procedure and revised 
non-normal procedures, as specified in a Transport Canada Civil 
Aviation (TCCA) AD, which is incorporated by reference. The FAA is 
issuing this AD to address the unsafe condition on these products.

DATES: This AD becomes effective September 1, 2022.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of September 1, 
2022.
    The FAA must receive comments on this AD by October 3, 2022.

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 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 material incorporated by reference (IBR) in this AD, contact 
TCCA, Transport Canada National Aircraft Certification, 159 Cleopatra 
Drive, Nepean, Ontario K1A 0N5, Canada; telephone 888-663-3639; email 
[email protected]; internet tc.canada.ca/en/aviation. You may view this 
material 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. It is also 
available in the AD docket at www.regulations.gov by searching for and 
locating Docket No. FAA-2022-0990.

Examining the AD Docket

    You may examine the AD docket at www.regulations.gov by searching 
for and locating Docket No. FAA-2022-0990; 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 AD, the mandatory 
continuing airworthiness information (MCAI), any comments received, and 
other information. The street address for Docket Operations is listed 
above.

FOR FURTHER INFORMATION CONTACT: Jiwan Karunatilake, Aerospace 
Engineer, Airframe and Propulsion Section, FAA, New York ACO Branch, 
1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-
7300; email [email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    The FAA invites you to send any written data, views, or arguments 
about this final rule. Send your comments to an address listed under 
ADDRESSES. Include ``Docket No. FAA-2022-0990; Project Identifier MCAI-
2022-00372-T'' at the beginning of your comments. The most helpful 
comments reference a specific portion of the final rule, explain the 
reason for any recommended change, and include supporting data.

[[Page 50561]]

The FAA will consider all comments received by the closing date and may 
amend this final rule 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 
www.regulations.gov, including any personal information you provide. 
The agency will also post a report summarizing each substantive verbal 
contact received about this final rule.

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 AD 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 AD, 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 AD. Submissions containing CBI should be sent to Jiwan 
Karunatilake, Aerospace Engineer, Airframe and Propulsion Section, FAA, 
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7300; email [email protected]. Any 
commentary that the FAA receives which is not specifically designated 
as CBI will be placed in the public docket for this rulemaking.

Background

    TCCA, which is the aviation authority for Canada, has issued TCCA 
AD CF-2022-11, dated March 17, 2022 (TCCA AD CF-2022-11) (also referred 
to as the MCAI), to correct an unsafe condition for certain Airbus 
Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. 
TCCA AD CF-2022-11 supersedes TCCA AD CF-2021-44, dated December 2, 
2021.
    This AD was prompted by a dual-engine automatic shutdown on landing 
experienced by a Model BD-500-1A11 airplane. The crew successfully 
stopped the airplane with degraded systems and functions. An 
investigation is ongoing to determine the root cause, but preliminary 
findings of this event indicate that erroneous uncontrolled high thrust 
(UHT) detection can occur above 16,000 feet when the thrust lever is 
manually and abruptly \1\ moved towards the idle position. Based on the 
preliminary findings from the ongoing investigation, and as a result of 
extensive subsequent communication with TCCA and Airbus Canada to 
determine the extent and urgency of the identified unsafe condition, 
the FAA is issuing this AD, which corresponds to TCCA AD CF-2022-11. 
TCCA AD CF-2022-11 is an interim action that includes revising the 
existing AFM by incorporating new AFM operating procedures to mitigate 
any UHT event--which can result in, for example, stall on the runway or 
loss of braking on landing--that may occur until the investigation is 
complete. The FAA is issuing this AD to address an erroneous UHT 
detection in flight, which would result in engine shutdown on landing 
with or without indications or crew alerting system messages displayed 
before landing, and, in the case of an automatic dual-engine shutdown 
upon landing, could result in loss of braking, loss of control of the 
airplane, and a runway excursion. See the MCAI for additional 
background information.
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    \1\ See definition of abrupt throttle movement in Figure 1 of 
TCCA AD CF-2022-11.
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Related Service Information Under 1 CFR Part 51

    TCCA AD CF-2022-11 specifies procedures for revising the existing 
AFM to incorporate a new normal procedure for low-altitude descent 
check (below 16,000 feet) and revised non-normal procedures for ``L 
THROTTLE FAIL'' and ``R THROTTLE FAIL.'' These procedures, which are 
specified in paragraph D of TCCA AD CF-2022-11, replace the interim 
procedures introduced by TCCA AD CF-2021-44; those interim procedures 
are specified in paragraphs A and B of TCCA AD CF-2022-11. 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 the ADDRESSES section.

FAA's Determination

    These products have been approved by the aviation authority of 
another country and are approved for operation in the United States. 
Pursuant to the FAA's bilateral agreement with this State of Design 
Authority, it has notified the FAA of the unsafe condition described in 
the MCAI described above. The FAA is issuing this AD after determining 
that the unsafe condition described previously is likely to exist or 
develop on other products of these same type designs.

Requirements of This AD

    This AD requires accomplishing actions specified in paragraph D of 
TCCA AD CF-2022-11 described previously.

Explanation of Required Compliance Information

    In the FAA's ongoing efforts to improve the efficiency of the AD 
process, the FAA developed a process to use some civil aviation 
authority (CAA) ADs as the primary source of information for compliance 
with requirements for corresponding FAA ADs. The FAA has been 
coordinating this process with manufacturers and CAAs. As a result, 
TCCA AD CF-2022-11 is incorporated by reference in this AD. This AD 
requires compliance with certain actions in TCCA AD CF-2022-11 through 
that incorporation. Service information required by TCCA AD CF-2022-11 
for compliance will be available at www.regulations.gov by searching 
for and locating Docket No. FAA-2022-0990 after this AD is published.

FAA's Justification and Determination of the Effective Date

    Section 553(b)(3)(B) of the Administrative Procedure Act (APA) (5 
U.S.C. 551 et seq.) authorizes agencies to dispense with notice and 
comment procedures for rules when the agency, for ``good cause,'' finds 
that those procedures are ``impracticable, unnecessary, or contrary to 
the public interest.'' Under this section, an agency, upon finding good 
cause, may issue a final rule without providing notice and seeking 
comment prior to issuance. Further, section 553(d) of the APA 
authorizes agencies to make rules effective in less than thirty days, 
upon a finding of good cause.
    An unsafe condition exists that requires the immediate adoption of 
this AD without providing an opportunity for public comments prior to 
adoption. The FAA has found that the risk to the flying public 
justifies forgoing notice and comment prior to adoption of this rule 
because an erroneous UHT detection in flight would result in engine 
shutdown on landing with or without indications or CAS messages 
displayed before landing. An automatic dual-engine shutdown upon 
landing could result in loss of braking, loss of control of the 
airplane, and a runway excursion. Accordingly, notice and opportunity 
for prior public comment are impracticable and contrary to the

[[Page 50562]]

public interest pursuant to 5 U.S.C. 553(b)(3)(B).
    In addition, the FAA finds that good cause exists pursuant to 5 
U.S.C. 553(d) for making this amendment effective in less than 30 days, 
for the same reasons the FAA found good cause to forgo notice and 
comment.

Regulatory Flexibility Act (RFA)

    The requirements of the RFA do not apply when an agency finds good 
cause pursuant to 5 U.S.C. 553 to adopt a rule without prior notice and 
comment. Because the FAA has determined that it has good cause to adopt 
this rule without notice and comment, RFA analysis is not required.

Costs of Compliance

    The FAA estimates that this AD affects 69 airplanes of U.S. 
registry. The FAA estimates the following costs to comply with this AD:

                                      Estimated Costs for Required Actions
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                                                                                    Cost per       Cost on U.S.
                          Labor cost                              Parts cost        product         operators
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1 work-hour x $85 per hour = $85.............................              $0              $85           $5,865
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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

    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, and
    (2) Will not affect intrastate aviation in Alaska.

List of Subjects in 14 CFR part 39

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

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

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:

2022-16-08 Airbus Canada Limited Partnership (Type Certificate 
Previously Held by C Series Aircraft Limited Partnership (CSALP); 
Bombardier, Inc.): Amendment 39-22137; Docket No. FAA-2022-0990; 
Project Identifier MCAI-2022-00372-T.

(a) Effective Date

    This airworthiness directive (AD) is effective September 1, 
2022.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Airbus Canada Limited Partnership (Type 
Certificate previously held by C Series Aircraft Limited Partnership 
(CSALP); Bombardier, Inc.) Model BD-500-1A10 and BD-500-1A11 
airplanes, certificated in any category, as identified in Transport 
Canada Civil Aviation (TCCA) AD CF-2022-11, dated March 17, 2022 
(TCCA AD CF-2022-11).

(d) Subject

    Air Transport Association (ATA) of America Code 72, Turbine/
turboprop engine.

(e) Unsafe Condition

    This AD was prompted by a report of a dual-engine automatic 
shutdown on landing. The FAA is issuing this AD to address an 
erroneous uncontrolled high thrust detection in flight, which would 
result in engine shutdown on landing with or without indications or 
crew alerting system messages displayed before landing, and, in the 
case of an automatic dual-engine shutdown upon landing, could result 
in loss of braking, loss of control of the airplane, and a runway 
excursion.

(f) Compliance

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

(g) Requirements

    Within 120 days from the effective date of this AD, revise the 
existing airplane flight manual (AFM) in accordance with paragraph D 
of TCCA AD CF-2022-11.

(h) 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 TCCA; or Airbus Canada Limited Partnership's TCCA 
Design Approval Organization (DAO). If approved by the DAO, the 
approval must include the DAO-authorized signature.

(i) Related Information

    For more information about this AD, contact Jiwan Karunatilake, 
Aerospace Engineer, Airframe and Propulsion Section, FAA, New York 
ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; 
telephone 516-228-7300; email [email protected].

(j) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference of the service information listed in this

[[Page 50563]]

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) Transport Canada Civil Aviation (TCCA) AD CF-2022-11, dated 
March 17, 2022.
    (ii) [Reserved]
    (3) For TCCA AD CF-2022-11, contact TCCA, Transport Canada 
National Aircraft Certification, 159 Cleopatra Drive, Nepean, 
Ontario K1A 0N5, Canada; telephone 888-663-3639; email [email protected]; internet tc.canada.ca/en/aviation.
    (4) You may view this material 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.
    (5) You may view this material that is incorporated by reference 
at the National Archives and Records Administration (NARA). For 
information on the availability of this material at NARA, email 
[email protected], or go to www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on July 29, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft 
Certification Service.
[FR Doc. 2022-17789 Filed 8-15-22; 4:15 pm]
BILLING CODE 4910-13-P


