Airworthiness Directives; Pratt & Whitney Turbofan Engines, 79235-79236 [2022-28091]
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Federal Register / Vol. 87, No. 247 / Tuesday, December 27, 2022 / Rules and Regulations
(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 the AD specifies otherwise.
(3) The following service information was
approved for IBR on November 22, 2021 (86
FR 57574, October 18, 2021).
(i) Leonardo Helicopters Alert Service
Bulletin No. 139–609, Revision A, dated
April 13, 2021.
(ii) [Reserved]
(4) For service information identified in
this AD, contact Leonardo S.p.a. Helicopters,
Emanuele Bufano, Head of Airworthiness,
Viale G. Agusta 520, 21017 C. Costa di
Samarate (Va) Italy; telephone +39–0331–
225074; fax +39–0331–229046; or at
customerportal.leonardocompany.com/enUS/.
(5) You may view this service information
at FAA, Office of the Regional Counsel,
Southwest Region, 10101 Hillwood Pkwy.,
Room 6N–321, Fort Worth, TX 76177. For
information on the availability of this
material at the FAA, call (817) 222–5110.
(6) 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: fr.inspection@nara.gov, or go to:
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued on December 20, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
SUPPLEMENTARY INFORMATION:
[FR Doc. 2022–28090 Filed 12–23–22; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2022–1306; Project
Identifier AD–2022–01040–E; Amendment
39–22289; AD 2022–27–04]
RIN 2120–AA64
Airworthiness Directives; Pratt &
Whitney Turbofan Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for all Pratt
& Whitney (PW) PW1519G, PW1521G,
TKELLEY on DSK125TN23PROD with RULES
SUMMARY:
VerDate Sep<11>2014
16:22 Dec 23, 2022
Jkt 259001
PW1521G–3, PW1521GA, PW1524G,
PW1524G–3, PW1525G, and PW1525G–
3 model turbofan engines. This AD was
prompted by an uncommanded dual
engine shutdown upon landing,
resulting in compromised braking
capability due to the loss of engine
power and hydraulic systems. This AD
requires removal from service of certain
electronic engine control (EEC) full
authority digital engine control (FADEC)
software versions and replacement with
updated software. The FAA is issuing
this AD to address the unsafe condition
on these products.
DATES: This AD is effective January 31,
2023.
ADDRESSES: AD Docket: You may
examine the AD docket at
regulations.gov by searching for and
locating Docket No. FAA–2022–1306; 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, 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.
FOR FURTHER INFORMATION CONTACT:
Mark Taylor, Aviation Safety Engineer,
ECO Branch, FAA, 1200 District
Avenue, Burlington, MA 01803; phone:
(781) 238–7229; email: Mark.Taylor@
faa.gov.
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 PW PW1519G, PW1521G,
PW1521G–3, PW1521GA, PW1524G,
PW1524G–3, PW1525G, and PW1525G–
3 model turbofan engines. The NPRM
published in the Federal Register on
October 25, 2022 (87 FR 64397). The
NPRM was prompted by a report that an
airplane experienced an uncommanded
dual engine shutdown upon landing,
resulting in compromised braking
capability due to the loss of engine
power and hydraulic systems. A
subsequent investigation determined
that the sequence of the auto-throttle
increasing throttle to maintain Mach
number, immediately followed by pilot
command to decrease throttle to idle,
caused a transient disagreement
PO 00000
Frm 00023
Fmt 4700
Sfmt 4700
79235
between actual and commanded thrust.
This disagreement triggered the thrust
control malfunction (TCM) detection
logic and resulted in dual engine
shutdown once the weight on wheels
signal was activated upon landing. The
installed EEC FADEC software version
latches the fault and allows the engine
to continue operation as commanded
but shuts down the engine upon
landing. The manufacturer identified
the situations that could trigger the TCM
logic erroneously and updated the EEC
FADEC software. This software update
makes corrective improvements to the
TCM logic, including revised criteria for
triggering the TCM logic and
establishing criteria that permit the
TCM logic to unlatch during flight. In
the NPRM, the FAA proposed to require
removal from service of certain EEC
FADEC software versions and
replacement with a software version
eligible for installation. The FAA is
issuing this AD to address the unsafe
condition on these products.
Discussion of Final Airworthiness
Directive
Comments
The FAA received one comment, from
Air Line Pilots Association,
International (ALPA). ALPA supported
the NPRM without change.
Conclusion
The FAA reviewed the relevant data,
considered the comments received, and
determined that air safety requires
adopting the AD as proposed.
Accordingly, the FAA is issuing this AD
to address the unsafe condition on these
products. Except for minor editorial
changes, this AD is adopted as proposed
in the NPRM.
Related Service Information
The FAA reviewed PW Service
Bulletin (SB) PW1000G–A–73–00–
0054–00A–930A–D, Issue No. 002,
dated June 20, 2022. This service
information specifies procedures for
replacing or modifying the EEC to
incorporate FADEC software version
V2.11.14.
Costs of Compliance
The FAA estimates that this AD
affects 147 engines installed on
airplanes of U.S. registry.
The FAA estimates the following
costs to comply with this AD:
E:\FR\FM\27DER1.SGM
27DER1
79236
Federal Register / Vol. 87, No. 247 / Tuesday, December 27, 2022 / Rules and Regulations
ESTIMATED COSTS
Action
Labor cost
Upgrade EEC FADEC Software .....................
2 work-hours × $85 per hour = $170 .............
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.
TKELLEY on DSK125TN23PROD with RULES
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:
VerDate Sep<11>2014
16:22 Dec 23, 2022
Jkt 259001
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.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive:
■
2022–27–04 Pratt & Whitney: Amendment
39–22289; Docket No. FAA–2022–1306;
Project Identifier AD–2022–01040–E.
(a) Effective Date
This airworthiness directive (AD) is
effective January 31, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Pratt & Whitney
PW1519G, PW1521G, PW1521G–3,
PW1521GA, PW1524G, PW1524G–3,
PW1525G, and PW1525G–3 model turbofan
engines.
(d) Subject
Joint Aircraft System Component (JASC)
Code 7600, Engine Controls.
This AD was prompted by an
uncommanded dual engine shutdown upon
landing, resulting in compromised braking
capability due to the loss of engine power
and hydraulic systems. The FAA is issuing
this AD to prevent compromised braking
capability due to uncommanded dual engine
shutdown upon landing. The unsafe
condition, if not addressed, could result in
runway excursion.
(f) Compliance
$170
$24,990
(i) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, ECO 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 the attention of the person
identified in paragraph (j) of this AD and
email to: ANE-AD-AMOC@faa.gov.
(2) 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.
(j) Related Information
For more information about this AD,
contact Mark Taylor, Aviation Safety
Engineer, ECO Branch, FAA, 1200 District
Avenue, Burlington, MA 01803; phone: (781)
238–7229; email: Mark.Taylor@faa.gov.
(k) Material Incorporated by Reference
None.
Issued on December 20, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022–28091 Filed 12–23–22; 8:45 am]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2022–1574; Project
Identifier MCAI–2022–01362–T; Amendment
39–22274; AD 2022–25–18]
RIN 2120–AA64
Comply with this AD within the
compliance times specified, unless already
done.
(g) Required Actions
For affected engines with installed
electronic engine control (EEC) full authority
digital engine control (FADEC) software
version earlier than V2.11.14.1, within 12
months after the effective date of this AD,
remove the EEC FADEC software and replace
with an EEC FADEC software version eligible
for installation.
(h) Definitions
For the purpose of this AD, ‘‘EEC FADEC
software version eligible for installation’’ is
EEC FADEC software version V2.11.14.1 or
later.
Frm 00024
$0
Cost on U.S.
operators
BILLING CODE 4910–13–P
(e) Unsafe Condition
PO 00000
Cost per
product
Parts cost
Fmt 4700
Sfmt 4700
Airworthiness Directives; BAE
Systems (Operations) Limited
Airplanes; Correction
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule; request for comment;
correction.
AGENCY:
The FAA is correcting an
airworthiness directive (AD) that was
published in the Federal Register. That
AD applies to certain BAE Systems
(Operations) Limited Model BAe 146
and Model Avro 146–RJ series airplanes.
As published, the identity of certain
airplanes in the preamble and regulatory
SUMMARY:
E:\FR\FM\27DER1.SGM
27DER1
Agencies
[Federal Register Volume 87, Number 247 (Tuesday, December 27, 2022)]
[Rules and Regulations]
[Pages 79235-79236]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-28091]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-1306; Project Identifier AD-2022-01040-E;
Amendment 39-22289; AD 2022-27-04]
RIN 2120-AA64
Airworthiness Directives; Pratt & Whitney Turbofan Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Pratt & Whitney (PW) PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G,
PW1524G-3, PW1525G, and PW1525G-3 model turbofan engines. This AD was
prompted by an uncommanded dual engine shutdown upon landing, resulting
in compromised braking capability due to the loss of engine power and
hydraulic systems. This AD requires removal from service of certain
electronic engine control (EEC) full authority digital engine control
(FADEC) software versions and replacement with updated software. The
FAA is issuing this AD to address the unsafe condition on these
products.
DATES: This AD is effective January 31, 2023.
ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov
by searching for and locating Docket No. FAA-2022-1306; 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, 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.
FOR FURTHER INFORMATION CONTACT: Mark Taylor, Aviation Safety Engineer,
ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone:
(781) 238-7229; email: [email protected].
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 PW PW1519G,
PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-3, PW1525G, and PW1525G-
3 model turbofan engines. The NPRM published in the Federal Register on
October 25, 2022 (87 FR 64397). The NPRM was prompted by a report that
an airplane experienced an uncommanded dual engine shutdown upon
landing, resulting in compromised braking capability due to the loss of
engine power and hydraulic systems. A subsequent investigation
determined that the sequence of the auto-throttle increasing throttle
to maintain Mach number, immediately followed by pilot command to
decrease throttle to idle, caused a transient disagreement between
actual and commanded thrust. This disagreement triggered the thrust
control malfunction (TCM) detection logic and resulted in dual engine
shutdown once the weight on wheels signal was activated upon landing.
The installed EEC FADEC software version latches the fault and allows
the engine to continue operation as commanded but shuts down the engine
upon landing. The manufacturer identified the situations that could
trigger the TCM logic erroneously and updated the EEC FADEC software.
This software update makes corrective improvements to the TCM logic,
including revised criteria for triggering the TCM logic and
establishing criteria that permit the TCM logic to unlatch during
flight. In the NPRM, the FAA proposed to require removal from service
of certain EEC FADEC software versions and replacement with a software
version eligible for installation. The FAA is issuing this AD to
address the unsafe condition on these products.
Discussion of Final Airworthiness Directive
Comments
The FAA received one comment, from Air Line Pilots Association,
International (ALPA). ALPA supported the NPRM without change.
Conclusion
The FAA reviewed the relevant data, considered the comments
received, and determined that air safety requires adopting the AD as
proposed. Accordingly, the FAA is issuing this AD to address the unsafe
condition on these products. Except for minor editorial changes, this
AD is adopted as proposed in the NPRM.
Related Service Information
The FAA reviewed PW Service Bulletin (SB) PW1000G-A-73-00-0054-00A-
930A-D, Issue No. 002, dated June 20, 2022. This service information
specifies procedures for replacing or modifying the EEC to incorporate
FADEC software version V2.11.14.
Costs of Compliance
The FAA estimates that this AD affects 147 engines installed on
airplanes of U.S. registry.
The FAA estimates the following costs to comply with this AD:
[[Page 79236]]
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Upgrade EEC FADEC Software............ 2 work-hours x $85 per $0 $170 $24,990
hour = $170.
----------------------------------------------------------------------------------------------------------------
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(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive:
2022-27-04 Pratt & Whitney: Amendment 39-22289; Docket No. FAA-2022-
1306; Project Identifier AD-2022-01040-E.
(a) Effective Date
This airworthiness directive (AD) is effective January 31, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Pratt & Whitney PW1519G, PW1521G, PW1521G-3,
PW1521GA, PW1524G, PW1524G-3, PW1525G, and PW1525G-3 model turbofan
engines.
(d) Subject
Joint Aircraft System Component (JASC) Code 7600, Engine
Controls.
(e) Unsafe Condition
This AD was prompted by an uncommanded dual engine shutdown upon
landing, resulting in compromised braking capability due to the loss
of engine power and hydraulic systems. The FAA is issuing this AD to
prevent compromised braking capability due to uncommanded dual
engine shutdown upon landing. The unsafe condition, if not
addressed, could result in runway excursion.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
For affected engines with installed electronic engine control
(EEC) full authority digital engine control (FADEC) software version
earlier than V2.11.14.1, within 12 months after the effective date
of this AD, remove the EEC FADEC software and replace with an EEC
FADEC software version eligible for installation.
(h) Definitions
For the purpose of this AD, ``EEC FADEC software version
eligible for installation'' is EEC FADEC software version V2.11.14.1
or later.
(i) Alternative Methods of Compliance (AMOCs)
(1) The Manager, ECO 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 the attention of the person
identified in paragraph (j) of this AD and email to: [email protected].
(2) 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.
(j) Related Information
For more information about this AD, contact Mark Taylor,
Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue,
Burlington, MA 01803; phone: (781) 238-7229; email:
[email protected].
(k) Material Incorporated by Reference
None.
Issued on December 20, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2022-28091 Filed 12-23-22; 8:45 am]
BILLING CODE 4910-13-P