Rule2025-03456
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
March 4, 2025
Effective
April 8, 2025
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Bombardier, Inc., Model BD-700-2A12 airplanes. This AD was prompted by the discovery that a partial loss of thrust after an engine failure during a required navigation performance authorization required (RNP- AR) approach under certain weight, altitude and temperature (WAT) conditions, may lead to a descent below the specified path guidance. This AD requires a revision to the existing airplane flight manual (AFM), to incorporate updated WAT tables for RNP-AR approach operations. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 90 Issue 41 (Tuesday, March 4, 2025)</title>
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[Federal Register Volume 90, Number 41 (Tuesday, March 4, 2025)]
[Rules and Regulations]
[Pages 11118-11120]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-03456]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-2543; Project Identifier MCAI-2024-00342-T;
Amendment 39-22969; AD 2025-04-11]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc., Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Bombardier, Inc., Model BD-700-2A12 airplanes. This AD was prompted by
the discovery that a partial loss of thrust after an engine failure
during a required navigation performance authorization required (RNP-
AR) approach under certain weight, altitude and temperature (WAT)
conditions, may lead to a descent below the specified path guidance.
This AD requires a revision to the existing airplane flight manual
(AFM), to incorporate updated WAT tables for RNP-AR approach
operations. The FAA is issuing this AD to address the unsafe condition
on these products.
DATES: This AD is effective April 8, 2025.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of April 8,
2025.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-2543; 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 final rule, the mandatory continuing airworthiness
information (MCAI), any comments received, and other information. The
address for Docket Operations is U.S. Department of Transportation,
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200
New Jersey Avenue SE, Washington, DC 20590.
Material Incorporated by Reference:
<bullet> For Bombardier material 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#2a4b4904535f466a4b4f584504164b0a42584f4c17" http: bombardier.com">bombardier.com</a>">ac.yul@aero.<a href="http://bombardier.com">bombardier.com</a></a>; website <a href="http://bombardier.com">bombardier.com</a>.
<bullet> 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 at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-2543.
FOR FURTHER INFORMATION CONTACT: Joseph Catanzaro, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
phone: 516-228-7300; email: <a href="/cdn-cgi/l/email-protection#b98094d8cfca94d7c0d8dad694dad6caf9dfd8d897ded6cf"><span class="__cf_email__" data-cfemail="61584c0017124c0f1800020e4c020e12210700004f060e17">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to all Bombardier, Inc.,
Model BD-700-2A12 airplanes. The NPRM published in the Federal Register
on November 27, 2024 (89 FR 93528). The NPRM was prompted by AD CF-
2024-22, dated June 13, 2024, issued by Transport Canada, which is the
aviation authority for Canada (referred to after this as the MCAI). The
MCAI states it was discovered that a partial loss of thrust after an
engine failure during an RNP-AR approach under certain WAT conditions,
may lead to a descent below 75 feet of the path guidance, requiring a
go-around. The resultant vertical deviation may exceed allowable
approach containment for obstacle clearance and may largely reduce the
safety margins in the missed approach.
In the NPRM, the FAA proposed to require a revision to the existing
AFM, to incorporate updated WAT tables for RNP-AR approach operations
that contain possible vertical deviations within the 75-foot
requirement. The FAA is issuing this AD to address the unsafe condition
on these products.
[[Page 11119]]
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-2543.
Discussion of Final Airworthiness Directive
Comments
The FAA received a comment from an individual who did not make a
request the FAA can act on.
Conclusion
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 this State of Design Authority, it
has notified the FAA of the unsafe condition described in the MCAI
referenced above. The FAA reviewed the relevant data, considered the
comments received, and determined that air safety requires adopting
this AD as proposed. Accordingly, the FAA is issuing this AD to address
the unsafe condition on this product. Except for minor editorial
changes, this AD is adopted as proposed in the NPRM. None of the
changes will increase the economic burden on any operator.
Material Incorporated by Reference Under 1 CFR Part 51
The FAA reviewed (Bombardier) Global 7500 Airplane Flight Manual
Temporary Revision TR-58, dated March 21, 2024. This material specifies
procedures to update WAT tables for RNP-AR approach operations to
contain possible vertical deviations within the 75-foot requirement.
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.
Costs of Compliance
The FAA estimates that this AD affects 70 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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Labor cost Parts cost Cost per product Cost on U.S. operators
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1 work-hour x $85 per hour = $85.............. $0 $85 $5,950
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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,
(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 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(f), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive:
2025-04-11 Bombardier, Inc.: Amendment 39-22969; Docket No. FAA-
2024-2543; Project Identifier MCAI-2024-00342 T.
(a) Effective Date
This airworthiness directive (AD) is effective April 8, 2025.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Bombardier, Inc., Model BD-700-2A12
airplanes.
(d) Subject
Air Transport Association (ATA) of America Code 34, Navigation.
(e) Unsafe Condition
This AD was prompted by the discovery that a partial loss of
thrust after an engine failure during a required navigation
performance authorization required (RNP-AR) approach under certain
weight, altitude, and temperature (WAT) conditions, may lead to a
descent below 75 feet of the path guidance, requiring a go-around.
The resultant vertical deviation may exceed allowable approach
containment for obstacle clearance and may reduce the safety margins
in the missed approach.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Revision of Existing Airplane Flight Manual (AFM)
Within 30 days after the effective date of this AD, revise the
existing AFM to include the information specified in (Bombardier)
Global 7500 Airplane Flight Manual Temporary Revision TR-58, dated
March 21, 2024.
(h) Additional AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Validation 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
International Validation Branch, send it to the attention of the
person identified in paragraph (i) of this AD and email to:
<a href="/cdn-cgi/l/email-protection#2d6c60626e6d4b4c4c034a425b"><span class="__cf_email__" data-cfemail="33727e7c70735552521d545c45">[email protected]</span></a>. Before using any approved AMOC, notify your
appropriate principal inspector, or lacking a principal inspector,
the manager of the responsible Flight Standards Office.
[[Page 11120]]
(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, International
Validation Branch, FAA; or Transport Canada; or Bombardier, Inc.'s,
Transport Canada Design Approval Organization (DAO). If approved by
the DAO, the approval must include the DAO-authorized signature.
(i) Additional Information
For more information about this AD, contact Joseph Catanzaro,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; phone: 516-228-7300; email: <a href="/cdn-cgi/l/email-protection#f5ccd8948386d89b8c94969ad8969a86b5939494db929a83"><span class="__cf_email__" data-cfemail="8db4a0ecfbfea0e3f4eceee2a0eee2fecdebececa3eae2fb">[email protected]</span></a>.
(j) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference of the material listed in this paragraph
under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material as applicable to do the actions
required by this AD, unless this AD specifies otherwise.
(i) (Bombardier) Global 7500 Airplane Flight Manual Temporary
Revision TR-58, dated March 21, 2024.
(ii) [Reserved]
(3) For Bombardier material 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#ee8f8dc0979b82ae8f8b9c81c0d28fce869c8b88d3" http: bombardier.com">bombardier.com</a>">ac.yul@aero.<a href="http://bombardier.com">bombardier.com</a></a>; website
<a href="http://bombardier.com">bombardier.com</a>.
(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 at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, visit <a href="http://www.archives.gov/federal-register/cfr/ibr-locations">www.archives.gov/federal-register/cfr/ibr-locations</a> or email <a href="/cdn-cgi/l/email-protection#fd9b8fd394938e8d989e89949293bd939c8f9cd39a928b"><span class="__cf_email__" data-cfemail="ec8a9ec285829f9c898f98858382ac828d9e8dc28b839a">[email protected]</span></a>.
Issued on February 20, 2025.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2025-03456 Filed 3-3-25; 8:45 am]
BILLING CODE 4910-13-P
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