Rule2022-15131
Airworthiness Directives; Pratt & Whitney Turbofan Engines
Primary source
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Published
July 15, 2022
Effective
August 19, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is superseding Airworthiness Directive (AD) 2021-14-06 for all Pratt & Whitney (PW) PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-3, PW1525G, PW1525G-3, PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A model turbofan engines. AD 2021-14-06 required repetitive borescope inspections (BSI) of certain low-pressure compressor (LPC) rotor 1 (R1) until replacement of electronic engine control (EEC) full authority digital electronic control (FADEC) software with updated software. AD 2021-14-06 also required a BSI after installation of the updated EEC FADEC software if certain Onboard Maintenance Message fault codes are displayed and meet specified criteria. AD 2021-14-06 also required, depending on the results of the BSI, replacement of the LPC R1. Since the FAA issued AD 2021-14-06, the manufacturer redesigned the compressor intermediate case (CIC) assembly to incorporate a shortened bleed duct configuration and updated the EEC FADEC software. This AD continues to require repetitive BSI of certain LPC R1s until replacement of EEC FADEC software with updated software and also a BSI after installation of the updated EEC FADEC software if certain Onboard Maintenance Message fault codes are displayed and meet specified criteria. This AD continues to require, depending on the results of the BSI, replacement of the LPC R1. This AD also requires removal and replacement of the existing CIC assembly with a CIC assembly eligible for installation. 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 135 (Friday, July 15, 2022)</title>
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[Federal Register Volume 87, Number 135 (Friday, July 15, 2022)]
[Rules and Regulations]
[Pages 42308-42312]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-15131]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0384; Project Identifier AD-2022-00027-E;
Amendment 39-22122; AD 2022-15-03]
RIN 2120-AA64
Airworthiness Directives; Pratt & Whitney Turbofan Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2021-14-06
for all Pratt & Whitney (PW) PW1519G, PW1521G, PW1521G-3, PW1521GA,
PW1524G, PW1524G-3, PW1525G, PW1525G-3, PW1919G, PW1921G, PW1922G,
PW1923G, and PW1923G-A model turbofan engines. AD 2021-14-06 required
repetitive borescope inspections (BSI) of certain low-pressure
compressor (LPC) rotor 1 (R1) until replacement of electronic engine
control (EEC) full authority digital electronic control (FADEC)
software with updated software. AD 2021-14-06 also required a BSI after
installation of the updated EEC FADEC software if certain Onboard
Maintenance Message fault codes are displayed and meet specified
criteria. AD 2021-14-06 also required, depending on the results of the
BSI, replacement of the LPC R1. Since the FAA issued AD 2021-14-06, the
manufacturer redesigned the compressor intermediate case (CIC) assembly
to incorporate a shortened bleed duct configuration and updated the EEC
FADEC software. This AD continues to require repetitive BSI of certain
LPC R1s until replacement of EEC FADEC software with updated software
and also a BSI after installation of the updated EEC FADEC software if
certain Onboard Maintenance Message fault codes are displayed and meet
specified criteria. This AD continues to require, depending on the
results of the BSI, replacement of the LPC R1. This AD also requires
removal and replacement of the existing CIC assembly with a CIC
assembly eligible for installation. The FAA is issuing this AD to
address the unsafe condition on these products.
DATES: This AD is effective August 19, 2022.
ADDRESSES: For service information identified in this final rule,
contact Pratt & Whitney, 400 Main Street, East Hartford, CT 06118;
phone: (800) 565-0140; email: <a href="/cdn-cgi/l/email-protection#264e434a561412665651085352450845494b"><span class="__cf_email__" data-cfemail="a8c0cdc4d89a9ce8d8df86dddccb86cbc7c5">[email protected]</span></a>; website: <a href="http://fleetcare.pw.utc.com">http://fleetcare.pw.utc.com</a>. You may view this service information at the
Airworthiness Products Section, FAA, 1200 District Avenue, Burlington,
MA 01803. For information on the availability of this material at the
FAA, call (817) 222-5110.
Examining the AD Docket
You may examine the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2022-0384; 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
[[Page 42309]]
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: <a href="/cdn-cgi/l/email-protection#b3fed2c1d89de7d2cadfdcc1f3d5d2d29dd4dcc5"><span class="__cf_email__" data-cfemail="4805293a23661c293124273a082e2929662f273e">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 2021-14-06, Amendment 39-21633 (86 FR
36061, July 8, 2021), (AD 2021-14-06). AD 2021-14-06 applied to all PW
PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-3, PW1525G,
PW1525G-3, PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A model
turbofan engines. The NPRM published in the Federal Register on April
04, 2022 (87 FR 19405). The NPRM was prompted by reports of inflight
shutdowns due to failure of the LPC R1 and by subsequent findings of
cracked LPC R1s during inspection. Additionally, the manufacturer
redesigned the CIC assembly to incorporate a shortened bleed duct
configuration. The shortened bleed duct addresses the unsafe condition
by preventing the coincidence between bleed and the acoustic
excitation. The manufacturer also updated the EEC FADEC software to
provide compatibility with both current and future operation of engines
and airplanes with the redesigned CIC assembly installed. In the NPRM,
the FAA proposed to continue to require removal from service of certain
EEC FADEC software and the installation of a software version eligible
for installation. The NPRM proposed to require a BSI of LPC R1 for
damage and cracks after replacing certain EEC FADEC software versions.
The NPRM proposed to continue to require a BSI of LPC R1 after
installation of an eligible EEC FADEC software version if certain
Onboard Maintenance Message fault codes are displayed and meet
specified criteria. The NPRM proposed to continue to require, depending
on the results of the BSI, replacement of the LPC R1. The NPRM also
proposed to require removal and replacement of certain CIC assemblies,
identified by part number, with a CIC assembly eligible for
installation.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from three commenters. The commenters
were Air Line Pilots Association, International (ALPA), Delta Air
Lines, Inc, (DAL), and an individual commenter. One commenter, ALPA,
supported the proposal without change. Two commenters, DAL and an
individual commenter, requested changes. The following presents the
comments received on the NPRM and the FAA's response to each comment.
Request To Revise the Required Action Proposed in Paragraph (g)(3)
DAL requested that the FAA remove the following language as
proposed in paragraph (g)(3) of the NPRM: ``after installation of the
EEC FADEC software version eligible for installation as required by
paragraphs (g)(1) and (g)(2) of this AD.'' DAL noted that this
requirement would create an unnecessary restriction on when the BSI of
the LPC R1 can be accomplished and may cause operators to perform a
second BSI if the BSI of the LPC R1 was performed prior to the software
upgrade.
The FAA agrees and has revised paragraph (g)(3) of this AD as
requested by DAL.
DAL also requested that the FAA revise paragraph (g)(3) of this AD
by changing the language from ``For the model turbofan engines
identified in paragraphs (g)(1) and (g)(2) . . .'' to ``For the model
turbofan engines identified in paragraphs (g)(1) or (g)(2). . . .'' DAL
noted that there is no overlap in turbofan engine models between
paragraphs (g)(1) and (g)(2), thus it is not possible for an engine
model to be identified in both paragraphs.
The FAA disagrees with changing this AD as requested by DAL.
Paragraph (g)(3) of this AD applies to the model turbofan engines
identified in paragraph (g)(1) and the model turbofan engines
identified in paragraph (g)(2). The FAA did not change the AD as a
result of this comment.
Request To Include Future Revisions to Service Information
DAL requested that the FAA add ``or later'' to Note 1 to paragraph
(g)(4) to allow for the use of future revisions to PW Service Bulletins
(SBs) PW1000G-A-72-00-0125-00A-930A-D, Issue No. 004, dated October 13,
2021, and PW1000G-A-72-00-0075-00B-930A-D, Issue No. 004, dated July
21, 2021. DAL noted that this would ensure that any LPC R1 serial
numbers added in subsequent revisions to these SBs would be included in
the applicability of this AD. DAL also requested that the FAA add ``or
later'' to Note 2 to paragraph (g)(5) to allow for the use of future
revisions to PW engine maintenance manual (EMM) PW1000G-A-72-00-00-02A-
0B5A-A. DAL noted that this would ensure that any changes made to the
guidance on determining N1 exceedance duration would be applicable
within the AD. DAL also requested that the FAA add ``or later'' to Note
3 to paragraph (g)(5) to allow for the use of future revisions to PW
EMM PW1000G-A-72-31-00-00A-312A-D, Issue No. 017, dated March 19, 2021.
DAL noted that this would ensure that any changes made to the guidance
on performing the BSI of the LPC R1 will be applicable within the AD.
DAL also requested that the FAA add a reference to A220 aircraft
maintenance publication (AMP) Task BD500-A-J72-00-00-02AAA-0B5A-A to
help ensure consistency across different manuals used by on-wing
maintenance personnel.
The FAA disagrees with adding ``or later'' to the service
information referenced in notes to paragraph (g) of this AD. The use of
notes in the regulatory text is for informational purposes only, and
the use of this service information is not required by this AD, but may
assist the operator while complying with this AD. Therefore, including
future revisions of the service information referenced in the notes
would not affect the applicability of this AD. Additionally, future
revisions of the service information have not yet been published by the
manufacturer or reviewed by the FAA. The FAA disagrees with the need to
add reference to future PW EMM revisions within Note 2 to paragraph
(g)(5) of this AD, as the currently cited documents provide the
appropriate guidance. The FAA did not change the AD as a result of
these comments.
Request To Correct Reference to EEC FADEC Software Version
DAL and an individual commenter requested that the FAA revise
paragraph (h)(1) of this AD to change the EEC FADEC software version
eligible for installation from version V2.11.12.4 to version
V2.11.12.1. Both commenters noted that PW SB PW1000G-A-73-00-0052-00A-
930A-D, Issue No. 001, dated October 7, 2021, defines EEC FADEC
software version V2.11.12.1 as the software version that is eligible
for installation on PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G-3,
PW1525G, and PW1525G-3 model turbofan engines.
[[Page 42310]]
The FAA agrees and has updated paragraph (h)(1) of this AD.
Conclusion
The FAA reviewed the relevant data, considered any 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, and
any other changes described previously, this AD is adopted as proposed
in the NPRM. None of the changes will increase the economic burden on
any operator.
Related Service Information
The FAA reviewed PW SB PW1000G-A-73-00-0025-00B-930A-D, Issue No.
001, dated November 23, 2021; PW SB PW1000G-A-72-00-0125-00A-930A-D,
Issue No. 004, dated October 13, 2021; PW SB PW1000G-A-72-00-0075-00B-
930A-D, Issue No. 004, dated July 21, 2021; PW SB PW1000G-A-73-00-0052-
00A-930A-D, Issue No. 001, dated October 7, 2021; PW SB PW1000G-A-72-
00-0121-00B-930A-D, Issue No. 001, dated July 9, 2021; PW SB PW1000G-A-
72-00-0175-00A-930A-D, Issue No. 001, dated July 1, 2021.
PW SB PW1000G-A-73-00-0025-00B-930A-D, Issue No. 001, dated
November 23, 2021, describes procedures for replacing or modifying the
EEC to incorporate EEC FADEC software version V9.6.5.6 in PW1919G,
PW1921G, PW1922G, PW1923G, and PW1923G-A model turbofan engines. PW SBs
PW1000G-A-72-00-0125-00A-930A-D, Issue No. 004, dated October 13, 2021,
and PW1000G-A-72-00-0075-00B-930A-D, Issue No. 004, dated July 21,
2021, describe procedures for performing repetitive BSIs of LPC R1s. PW
SB PW1000G-A-73-00-0052-00A-930A-D, Issue No. 001, dated October 7,
2021, describes procedures for replacing or modifying the EEC to
incorporate EEC FADEC software version V2.11.12 in PW1519G, PW1521G,
PW1521G-3, PW1521GA, PW1524G, PW1524G-3, PW1525G, PW1525G-3 model
turbofan engines. PW SBs PW1000G-A-72-00-0121-00B-930A-D, Issue No.
001, dated July 9, 2021, and PW1000G-A-72-00-0175-00A-930A-D, Issue No.
001, dated July 1, 2021, describe procedures for replacing or modifying
the CIC assembly.
The FAA also reviewed Section PW1000G-A-72-00-00-02A-0B5A-A of PW
EMM, Issue No. 016, dated January 15, 2021; and Section PW1000G-A-72-
31-00-00A-312A-D of PW EMM, Issue No. 017, dated March 19, 2021.
Section PW1000G-A-72-00-00-02A-0B5A-A of PW EMM, Issue No. 016, dated
January 15, 2021, describes procedures for inspecting the engine for
possible engine damage after receiving notification of an N1 or N2
overspeed operation. Section PW1000G-A-72-31-00-00A-312A-D of PW EMM,
Issue No. 017, dated March 19, 2021, describes procedures for
performing a BSI of the LPC.
Costs of Compliance
The FAA estimates that this AD affects 114 engines installed on
airplanes of U.S. registry. The FAA estimates that five percent of
engines installed on airplanes of U.S. registry will require EEC FADEC
software upgrade and BSI of the LPC R1.
The FAA estimates the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Replace EEC FADEC software............ 2 work-hours x $85 per $0 $170 $19,380
hour = $170.
BSI of the LPC R1..................... 2 work-hours x $85 per 0 170 969
hour = $170.
Replace CIC assembly.................. 428 work-hours x $85 per 124,522 160,902 18,342,828
hour = $36,380.
----------------------------------------------------------------------------------------------------------------
The FAA estimates the following costs to do any necessary
inspection if certain Onboard Maintenance Message fault codes are
displayed or if any necessary replacement is required based on the
results of the inspection. The agency has no way of determining the
number of aircraft that might need these replacements or inspections:
On-Condition Costs
----------------------------------------------------------------------------------------------------------------
Action Labor cost Parts cost Cost per product
----------------------------------------------------------------------------------------------------------------
Replace LPC R1....................... 40 work-hours x $85 per $156,000............... $159,400
hour = $3,400.
BSI of the LPC R1 if Onboard 2 work-hours x $85 per $0..................... $170
Maintenance Message fault codes are hour = $170.
displayed and meet specified
criteria.
----------------------------------------------------------------------------------------------------------------
The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some of the costs of this AD
may be covered under warranty, thereby reducing the cost impact on
affected individuals.
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.
[[Page 42311]]
Regulatory Findings
The FAA has 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,
(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:
0
a. Removing Airworthiness Directive 2021-14-06, Amendment 39-21633 (86
FR 36061, July 8, 2021); and
0
b. Adding the following new airworthiness directive:
2022[dash]15-03 Pratt & Whitney: Amendment 39-22122; Docket No. FAA-
2022-0384; Project Identifier AD-2022-00027-E.
(a) Effective Date
This airworthiness directive (AD) is effective August 19, 2022.
(b) Affected ADs
This AD replaces AD 2021-14-06, Amendment 39-21633 (86 FR 36061,
July 8, 2021).
(c) Applicability
This AD applies to Pratt & Whitney PW1519G, PW1521G, PW1521G-3,
PW1521GA, PW1524G, PW1524G-3, PW1525G, PW1525G-3, PW1919G, PW1921G,
PW1922G, PW1923G, and PW1923G-A model turbofan engines.
(d) Subject
Joint Aircraft System Component (JASC) Code 7230, Turbine Engine
Compressor Section.
(e) Unsafe Condition
This AD was prompted by reports of in-flight shutdowns due to
failure of the low-pressure compressor (LPC) rotor 1 (R1) and by
subsequent findings of cracked LPC R1s during inspection. The FAA is
issuing this AD to prevent failure of the LPC R1. The unsafe
condition, if not addressed, could result in an uncontained release
of the LPC R1, damage to the engine, damage to the airplane, and
loss of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
(1) For PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-
3, PW1525G, and PW1525G-3 model turbofan engines with installed
electronic engine control (EEC) full authority digital electronic
control (FADEC) software earlier than EEC FADEC software version
V2.11.10.4, before further flight, remove the EEC FADEC software and
install EEC FADEC software version eligible for installation.
(2) For PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A model
turbofan engines with installed EEC FADEC software earlier than EEC
FADEC software version V9.5.6.7, before further flight, remove the
EEC FADEC software and install EEC FADEC software version eligible
for installation.
(3) For the model turbofan engines identified in paragraphs
(g)(1) and (g)(2) of this AD, before further flight, perform a one-
time borescope inspection (BSI) of the LPC R1 for damage and cracks
at the following LPC R1 locations:
(i) The blade tip;
(ii) The leading edge;
(iii) The leading edge fillet to rotor platform radius; and
(iv) The airfoil convex side root fillet to rotor platform
radius.
(4) Based on the results of the BSI required by paragraph (g)(3)
of this AD, before further flight, remove and replace the LPC R1 if:
(i) There is damage on an LPC R1 that exceeds serviceable
limits; or
(ii) Any crack in the LPC R1 exists.
Note 1 to paragraph (g)(4): Guidance on determining the
serviceable limits in paragraphs (g)(4) and (6) of this AD can be
found in Pratt & Whitney (PW) Service Bulletin (SB) PW1000G-A-72-00-
0125-00A-930A-D, Issue No. 004, dated October 13, 2021, and PW SB
PW1000G-A-72-00-0075-00B-930A-D, Issue No. 004, dated July 21, 2021.
(5) For PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-
3, PW1525G, and PW1525G-3 model turbofan engines with EEC FADEC
software version V2.11.10.4 or later installed, within 15 flight
cycles after receipt of Onboard Maintenance Message fault code
7100F0029 or 7100F0030, perform a BSI of the LPC R1 for damage and
cracks at the locations specified in paragraph (g)(3) of this AD if
the fault code is displayed on the Active Failure Messages and meets
the following criteria:
(i) N1 Exceedance is above 95.2%;
(ii) N1 Exceedance occurred above 29,100 feet;
(iii) N1 Exceedance occurs for a duration of 40 seconds (15
seconds of cockpit display) or more during any flight; and
(iv) Compressor intermediate case (CIC) assembly installed has
part number (P/N) 5379926, P/N 5379940, P/N 5379946, or P/N 5379926-
001.
Note 2 to paragraph (g)(5): Guidance on determining the N1
Exceedance duration can be found in Section PW1000G-A-72-00-00-02A-
0B5A-A of PW engine maintenance manual (EMM), Issue No. 016, dated
January 15, 2021.
Note 3 to paragraph (g)(5): Guidance on performing the BSI can
be found in Section PW1000G-A-72-31-00-00A-312A-D of PW EMM, Issue
No. 017, dated March 19, 2021.
(6) Based on the results of the BSI required by paragraph (g)(5)
of this AD, before further flight, remove and replace the LPC R1 if:
(i) There is damage on an LPC R1 that exceeds serviceable
limits; or
(ii) Any crack in the LPC R1 exists.
(7) For all affected model turbofan engines, at the next engine
shop visit after the effective date of this AD, remove CIC assembly
with P/N 5379926, P/N 5379940, P/N 5379946, or P/N 5379926-001 and
replace with a CIC assembly eligible for installation.
(8) For PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-
3, PW1525G, and PW1525G-3 model turbofan engines with installed EEC
FADEC software version V2.11.10.4, at the next engine shop visit
after the effective date of this AD, remove the EEC FADEC software
and install EEC FADEC software version eligible for installation.
(9) For PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A model
turbofan engines with installed EEC FADEC software version V9.5.6.7,
at the next engine shop visit after the effective date of this AD,
remove the EEC FADEC software and install EEC FADEC software version
eligible for installation.
(h) Definitions
(1) For the purpose of this AD, ``EEC FADEC software version
eligible for installation'' is EEC FADEC software version V2.11.12.1
or later for PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G,
PW1524G-3, PW1525G, and PW1525G-3 model turbofan engines, and EEC
FADEC software version V9.6.5.6 or later for PW1919G, PW1921G,
PW1922G, PW1923G, and PW1923G-A model turbofan engines.
(2) For the purpose of this AD, an ``engine shop visit'' is the
induction of an engine into the shop for maintenance involving the
separation of the LPC Flange 1 or separation of the LPC Flange 4,
except for the following situations, which do not constitute an
engine shop visit.
(i) Separation of engine flanges solely for the purposes of
transportation without subsequent engine maintenance.
(ii) Separation of engine flanges solely for the purpose of
replacing the fan without subsequent maintenance.
(3) For the purpose of this AD, a ``CIC assembly eligible for
installation'' is any CIC assembly that does not have P/N 5379926,
P/N 5379940, P/N 5379946, or P/N 5379926-001.
[[Page 42312]]
(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)(1) of this AD and email to: <a href="/cdn-cgi/l/email-protection#b0f1fef59df1f49df1fdfff3f0d6d1d19ed7dfc6"><span class="__cf_email__" data-cfemail="9fded1dab2dedbb2ded2d0dcdff9fefeb1f8f0e9">[email protected]</span></a>.
(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
(1) 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:
<a href="/cdn-cgi/l/email-protection#efa28e9d84c1bb8e9683809daf898e8ec1888099"><span class="__cf_email__" data-cfemail="0c416d7e6722586d7560637e4c6a6d6d226b637a">[email protected]</span></a>.
(2) For service information identified in this AD, contact Pratt
& Whitney, 400 Main Street, East Hartford, CT 06118; phone: (800)
565-0140; email: <a href="/cdn-cgi/l/email-protection#dfb7bab3afedeb9fafa8f1aaabbcf1bcb0b2"><span class="__cf_email__" data-cfemail="fc9499908ccec8bc8c8bd289889fd29f9391">[email protected]</span></a>; website: <a href="http://fleetcare.pw.utc.com">http://fleetcare.pw.utc.com</a>.
(3) You may view this referenced service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 1200
District Avenue, Burlington, MA 01803. For information on the
availability of this material at the FAA, call (817) 222-5110.
(k) Material Incorporated by Reference
None.
Issued on July 7, 2022.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022-15131 Filed 7-14-22; 8:45 am]
BILLING CODE 4910-13-P
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</html>Indexed from Federal Register on July 15, 2022.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.