Rule2022-12242
Airworthiness Directives; Bombardier, Inc., Airplanes
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
June 6, 2022
Effective
June 21, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Bombardier, Inc., Model BD-100-1A10 airplanes. This AD was prompted by a report of multiple in-service events where, following a STAB TRIM FAULT advisory message and auto-pilot disconnect, flightcrew commands for a nose-up trim resulted in nose-down trim movement of the horizontal stabilizer instead. This AD requires revising the existing airplane flight manual (AFM) to provide the flightcrew with instructions for an expanded pre-flight check of the pitch trim, trim malfunction procedures, and revised "AP STAB TRIM FAIL" caution and "STAB TRIM FAULT" advisory procedures. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 87 Issue 108 (Monday, June 6, 2022)</title>
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[Federal Register Volume 87, Number 108 (Monday, June 6, 2022)]
[Rules and Regulations]
[Pages 34125-34128]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-12242]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0596; Project Identifier MCAI-2022-00150-T;
Amendment 39-22073; AD 2022-12-02]
RIN 2120-AA64
Airworthiness Directives; 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 all
Bombardier, Inc., Model BD-100-1A10 airplanes. This AD was prompted by
a report of multiple in-service events where, following a STAB TRIM
FAULT advisory message and auto-pilot disconnect, flightcrew commands
for a nose-up trim resulted in nose-down trim movement of the
horizontal stabilizer instead. This AD requires revising the existing
airplane flight manual (AFM) to provide the flightcrew with
instructions for an expanded pre-flight check of the pitch trim, trim
malfunction procedures, and revised ``AP STAB TRIM FAIL'' caution and
``STAB TRIM FAULT'' advisory procedures. The FAA is issuing this AD to
address the unsafe condition on these products.
DATES: This AD becomes effective June 21, 2022.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of June 21,
2022.
The FAA must receive comments on this AD by July 21, 2022.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="https://www.regulations.gov">https://www.regulations.gov</a>. Follow the instructions for submitting comments.
<bullet> Fax: 202-493-2251.
<bullet> 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.
<bullet> Hand Delivery: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
For service information identified in this final rule, contact
Bombardier
[[Page 34126]]
Business Aircraft Customer Response Center, 400 C[ocirc]te-Vertu Road
West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-2999;
email <a href="/cdn-cgi/l/email-protection#38595b16414d5478595d4a57165a57555a594a5c515d4a165b5755"><span class="__cf_email__" data-cfemail="cdacaee3b4b8a18daca8bfa2e3afa2a0afacbfa9a4a8bfe3aea2a0">[email protected]</span></a>; internet <a href="https://www.bombardier.com">https://www.bombardier.com</a>.
You may view this referenced 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. It is also available on the
internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating
Docket No. FAA-2022-0596.
Examining the AD Docket
You may examine the AD docket on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No. FAA-2022-
0596; or in person at the Docket Operations office between 9 a.m. and 5
p.m., Monday through Friday, except Federal holidays. The AD docket
contains this AD, any comments received, and other information. The
street address for the Docket Operations office is listed above.
Comments will be available in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Elizabeth Dowling, 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 <a href="/cdn-cgi/l/email-protection#89b0a4e8fffaa4e7f0e8eae6a4eae6fac9efe8e8a7eee6ff"><span class="__cf_email__" data-cfemail="90a9bdf1e6e3bdfee9f1f3ffbdf3ffe3d0f6f1f1bef7ffe6">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this AD. Send your comments to an address listed under
ADDRESSES. Include ``Docket No. FAA-2022-0596; Project Identifier MCAI-
2022-00150-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. 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
<a href="https://www.regulations.gov">https://www.regulations.gov</a>, 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
Elizabeth Dowling, 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 <a href="/cdn-cgi/l/email-protection#655c48041316480b1c04060a48060a16250304044b020a13"><span class="__cf_email__" data-cfemail="efd6c28e999cc281968e8c80c28c809caf898e8ec1888099">[email protected]</span></a>. Any commentary that the FAA receives which is
not specifically designated as CBI will be placed in the public docket
for this rulemaking.
Discussion
Transport Canada Civil Aviation (TCCA) which is the aviation
authority for Canada, has issued TCCA AD CF-2022-03, dated February 1,
2022 (TCCA AD CF-2022-03) (referred to after this as the Mandatory
Continuing Airworthiness Information, or the MCAI), to correct an
unsafe condition for all Bombardier, Inc., Model BD-100-1A10 airplanes.
You may examine the MCAI on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a>
by searching for and locating Docket No. FAA-2022-0596.
This AD was prompted by a report of multiple in-service events
where, following a STAB TRIM FAULT advisory message and auto-pilot
disconnect, flightcrew commands for a nose-up trim resulted in nose-
down trim movement of the horizontal stabilizer instead. In some
events, the horizontal stabilizer reached the full airplane nose-down
trim position before the crew recognized the nature of the problem. The
FAA is issuing this AD to address uncommanded horizontal stabilizer
motion, which could result in increased crew workload and reduced
safety margins; and if the flightcrew is unable to regain control of
the horizontal stabilizer, would result in loss of control of the
airplane and excessive high control forces. See the MCAI for additional
background information.
Related Service Information Under 1 CFR Part 51
Bombardier has issued the following service information which
includes the ``Before Starting Engines'' checklist in Chapter 04--
Normal Procedures, of the AFM:
<bullet> Bombardier Challenger 300 AFM (Imperial Version), CSP 100-
1, Revision 67, dated March 29, 2022;
<bullet> Bombardier Challenger 300 AFM (Metric Version), CSP 100-1
(METRIC), Revision 67, dated March 29, 2022;
<bullet> Bombardier Challenger 350 AFM, CH 350, Revision 33, dated
March 29, 2022.
This service information describes instructions for an expanded
pre-flight check of the pitch trim. These documents are distinct since
they apply to different airplane configurations.
Bombardier has also issued the following service information:
<bullet> Challenger 300 Temporary Revision TR-92, dated December
20, 2021, to the Bombardier Challenger 300 AFM (Imperial Version), CSP
100-1;
<bullet> Challenger 300 Temporary Revision TR-92, dated December
20, 2021, to the Bombardier Challenger 300 AFM (Metric Version), CSP
100-1 (METRIC); and
<bullet> Challenger 350 Temporary Revision TR-23, dated December
20, 2021, to the Bombardier Challenger 350 AFM, CH 350.
This service information describes instructions for trim
malfunction procedures, and revised ``AP STAB TRIM FAIL'' caution and
``STAB TRIM FAULT'' advisory procedures. These documents are distinct
since they apply to different airplane configurations.
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 the FAA's 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 issuing this AD
because the FAA evaluated all pertinent information and determined the
unsafe condition exists and is likely to exist or develop on other
products of the same type design.
[[Page 34127]]
Requirements of This AD
This AD requires revising the existing airplane flight manual to
add an expanded pre-flight check of the pitch trim, trim malfunction
procedures, and revised ``AP STAB TRIM FAIL'' caution and ``STAB TRIM
FAULT'' advisory procedures.
TCCA AD CF-2022-03 requires operators to ``brief all flight crews''
of the AFM procedures and thereafter to ``operate the aeroplane
accordingly.'' However, this AD does not specifically require those
actions as those actions are already required by FAA regulations. FAA
regulations require operators furnish to pilots any changes to the AFM
(for example, 14 CFR 121.137), and to ensure the pilots are familiar
with the AFM (for example, 14 CFR 91.505). As with any other flightcrew
training requirement, training on the updated AFM content is tracked by
the operators and recorded in each pilot's training record, which is
available for the FAA to review. FAA regulations also require pilots to
follow the procedures in the existing AFM including all updates. 14 CFR
91.9 requires that any person operating a civil aircraft must comply
with the operating limitations specified in the AFM. Therefore,
including a requirement in this AD to operate the airplane according to
the revised AFM would be redundant and unnecessary.
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 waiving notice and comment prior to adoption of this rule
because in some of the reported events, the horizontal stabilizer
reached full airplane nose-down trim position before the flightcrew
recognized the nature of the problem, resulting in increased flightcrew
workload and reduced safety margins. If not addressed, an uncommanded
horizontal stabilizer motion could result in the stabilizer reaching
its full travel position, and consequently, the flightcrew may not be
able to regain control of the horizontal stabilizer, which would result
in loss of control of the airplane and excessive high control forces.
Therefore, the FAA finds good cause that notice and opportunity for
prior public comment are impracticable. In addition, for the reasons
stated above, 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.
Interim Action
The FAA considers this AD to be an interim action. TCCA AD CF-2022-
03 states an investigation is ongoing and the revision of the existing
AFM is a mitigating action.
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 678 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
1 work-hour x $85 per hour = $85................................ $0 $85 $57,630
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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 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:
[[Page 34128]]
2022-12-02 Bombardier, Inc.: Amendment 39-22073; Docket No. FAA-
2022-0596; Project Identifier MCAI-2022-00150-T.
(a) Effective Date
This airworthiness directive (AD) becomes effective June 21,
2022.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Bombardier, Inc., Model BD-100-1A10
airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 27, Flight
Controls.
(e) Reason
This AD was prompted by a report of multiple in-service events
where, following a STAB TRIM FAULT advisory message and auto-pilot
disconnect, flightcrew commands for a nose-up trim resulted in nose-
down trim movement of the horizontal stabilizer instead. The FAA is
issuing this AD to address uncommanded horizontal stabilizer motion,
which could result in increased crew workload and reduced safety
margins; and if the flightcrew is unable to regain control of the
horizontal stabilizer, would result in loss of control of the
airplane and excessive high control forces.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Revision of the Existing Airplane Flight Manual (AFM)--Non-Normal
Procedures
Within 14 days after the effective date of this AD, revise the
Non-Normal Procedures chapter of the existing Airplane Flight Manual
to include the information in the applicable temporary revision
identified in paragraphs (g)(1) through (3) of this AD.
(1) Bombardier Challenger 300 Temporary Revision TR-92, dated
December 20, 2021, to the Bombardier Challenger 300 AFM (Imperial
Version).
(2) Bombardier Challenger 300 Temporary Revision TR-92, dated
December 20, 2021, to the Bombardier Challenger 300 AFM (Metric
Version).
(3) Bombardier Challenger 350 Temporary Revision TR-23, dated
December 20, 2021, to the Bombardier Challenger 350 AFM.
(h) Revision of the Existing AFM--Normal Procedures
Within 14 days after the effective date of this AD, revise the
Normal Procedures chapter of the existing AFM to include the
information for the ``Before Starting Engines'' checklist in Chapter
04--Normal Procedures, of the applicable AFM identified in
paragraphs (h)(1) through (3) of this AD.
(1) Bombardier Challenger 300 AFM (Imperial Version), CSP 100-1,
Revision 67, dated March 29, 2022.
Note 1 to paragraph (h)(1): For obtaining the Before Starting
Engines checklist for Bombardier Challenger 300 AFM (Imperial
Version), CSP 100-1, use Document Identification number CH 300 AFM-
I.
(2) Bombardier Challenger 300 AFM (Metric Version), CSP 100-1
(METRIC), Revision 67, dated March 29, 2022.
Note 2 to paragraph (h)(2): For obtaining the Before Starting
Engines checklist for Bombardier Challenger 300 AFM (Metric
Version), CSP 100-1 (METRIC), use Document Identification number CH
300 AFM-M.
(3) Bombardier Challenger 350 AFM, CH 350, Revision 33, dated
March 29, 2022.
(i) 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 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; fax 516-794-5531. 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 Civil Aviation (TCCA); or
Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If
approved by the DAO, the approval must include the DAO-authorized
signature.
(j) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) TCCA AD CF-2022-03, dated February 1, 2022, for related
information. This MCAI may be found in the AD docket on the internet
at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket
No. FAA-2022-0596.
(2) For more information about this AD, contact Elizabeth
Dowling, 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 <a href="/cdn-cgi/l/email-protection#477e6a2631346a293e2624286a2428340721262669202831"><span class="__cf_email__" data-cfemail="132a3e7265603e7d6a72707c3e707c60537572723d747c65">[email protected]</span></a>.
(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) ``Before Starting Engines'' checklist in Chapter 04--Normal
Procedures of Bombardier Challenger 300 Airplan Flight Manual (AFM)
(Imperial Version), CSP 100-1, Revision 67, dated March 29, 2022.
(ii) ``Before Starting Engines'' checklist in Chapter 04--Normal
Procedures of Bombardier Challenger 300 AFM (Metric Version), CSP
100-1 (METRIC), Revision 67, dated March 29, 2022.
(iii) ``Before Starting Engines'' checklist in Chapter 04--
Normal Procedures of Bombardier Challenger 350 AFM CH 350, Revision
33, dated March 29, 2022.
(iv) Bombardier Challenger 300 Temporary Revision TR-92, dated
December 20, 2021, to the Bombardier Challenger 300 AFM (Imperial
Version), CSP 100-1.
(v) Bombardier Challenger 300 Temporary Revision TR-92, dated
December 20, 2021, to the Bombardier Challenger 300 AFM (Metric
Version), CSP 100-1 (METRIC).
(vi) Bombardier Challenger 350 Temporary Revision TR-23, dated
December 20, 2021, to the Bombardier Challenger 350 AFM, CH 350.
(3) For service information identified in this AD, contact
Bombardier Business Aircraft Customer Response Center, 400
C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada;
telephone 514-855-2999; email <a href="/cdn-cgi/l/email-protection#e78684c99e928ba786829588c985888a858695838e8295c984888a"><span class="__cf_email__" data-cfemail="c3a2a0edbab6af83a2a6b1aceda1acaea1a2b1a7aaa6b1eda0acae">[email protected]</span></a>; internet
<a href="https://www.bombardier.com">https://www.bombardier.com</a>.
Note 3 to paragraph (k)(3): For obtaining the Before Starting
Engines checklist for Bombardier Challenger 300 AFM (Imperial
Version), CSP 100-1, use Document Identification number CH 300 AFM-
I.
Note 4 to paragraph (k)(3): For obtaining the Before Starting
Engines checklist for Bombardier Challenger 300 AFM (Metric
Version), CSP 100-1 (METRIC), use Document Identification number CH
300 AFM-M.
(4) 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.
(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, email <a href="/cdn-cgi/l/email-protection#4b2d39652225383b2e283f2224250b252a392a652c243d"><span class="__cf_email__" data-cfemail="3f594d1156514c4f5a5c4b5650517f515e4d5e11585049">[email protected]</span></a>, or go to: <a href="https://www.archives.gov/federal-register/cfr/ibr-locations.html">https://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on May 26, 2022.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022-12242 Filed 6-2-22; 4:15 pm]
BILLING CODE 4910-13-P
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