Airworthiness Directives; Pratt & Whitney Division Turbofan Engines, 1265-1267 [2016-31870]
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Federal Register / Vol. 82, No. 3 / Thursday, January 5, 2017 / Proposed Rules
mstockstill on DSK3G9T082PROD with PROPOSALS
(3) An AMOC that provides an acceptable
level of safety may be used for any repair,
modification, or alteration required by this
AD if it is approved by the Boeing
Commercial Airplanes Organization
Designation Authorization (ODA) that has
been authorized by the Manager, Los Angeles
ACO, to make those findings. To be
approved, the repair method, modification
deviation, or alteration deviation must meet
the certification basis of the airplane, and the
approval must specifically refer to this AD.
(4) Except as required by paragraph (h) of
this AD: For service information that
contains steps that are labeled as RC, the
provisions of paragraphs (i)(4)(i) and (i)(4)(ii)
of this AD apply.
(i) The steps labeled as RC, including
substeps under an RC step and any figures
identified in an RC step, must be done to
comply with the AD. If a step or substep is
labeled ‘‘RC Exempt,’’ then the RC
requirement is removed from that step or
substep. An AMOC is required for any
deviations to RC steps, including substeps
and identified figures.
(ii) Steps not labeled as RC may be
deviated from using accepted methods in
accordance with the operator’s maintenance
or inspection program without obtaining
approval of an AMOC, provided the RC steps,
including substeps and identified figures, can
still be done as specified, and the airplane
can be put back in an airworthy condition.
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2016–9405; Directorate
Identifier 2016–NE–22–AD]
RIN 2120–AA64
Airworthiness Directives; Pratt &
Whitney Division Turbofan Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for certain
Pratt & Whitney Division (PW) PW2037,
PW2037M, and PW2040 turbofan
engines. This proposed AD was
prompted by an unrecoverable engine
in-flight shutdown (IFSD) after an ice
crystal icing event. This proposed AD
would require installing a software
standard eligible for installation and
preclude the use of electronic engine
control (EEC) software standards earlier
than SCN 5B/I. We are proposing this
AD to correct the unsafe condition on
these products.
DATES: We must receive comments on
this proposed AD by February 21, 2017.
(j) Related Information
ADDRESSES: You may send comments,
(1) For more information about this AD,
using the procedures found in 14 CFR
contact Eric Schrieber, Aerospace Engineer,
11.43 and 11.45, by any of the following
Airframe Branch, ANM–120L, FAA, Los
methods:
Angeles ACO, 3960 Paramount Boulevard,
• Federal eRulemaking Portal: Go to
Lakewood, CA 90712–4137; phone: 562–627–
https://www.regulations.gov. Follow the
5348; fax: 562–627–5210; email:
instructions for submitting comments.
eric.schrieber@faa.gov.
• Fax: 202–493–2251.
(2) For service information identified in
• Mail: U.S. Department of
this AD, contact Boeing Commercial
Transportation, Docket Operations,
Airplanes, Attention: Contractual & Data
M–30, West Building Ground Floor,
Services (C&DS), 2600 Westminster Blvd.,
Room W12–140, 1200 New Jersey
MC 110–SK57, Seal Beach, CA 90740–5600;
Avenue SE., Washington, DC 20590.
telephone 562–797–1717; Internet https://
• Hand Delivery: Deliver to Mail
www.myboeingfleet.com. You may view this
address above between 9 a.m. and 5
referenced service information at the FAA,
p.m., Monday through Friday, except
Transport Airplane Directorate, 1601 Lind
Federal holidays.
Avenue SW., Renton, WA. For information
For service information identified in
on the availability of this material at the
this NPRM, contact Pratt & Whitney
FAA, call 425–227–1221.
Division, 400 Main St., East Hartford,
Issued in Renton, Washington, on
CT 06118; phone: 800–565–0140; fax:
December 22, 2016.
860–565–5442. You may view this
Robert D. Breneman,
service information at the FAA, Engine
& Propeller Directorate, 1200 District
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
Avenue, Burlington, MA. For
information on the availability of this
[FR Doc. 2016–31619 Filed 1–4–17; 8:45 am]
material at the FAA, call 781–238–7125.
BILLING CODE 4910–13–P
SUMMARY:
1265
Management Facility between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this proposed AD, the
regulatory evaluation, any comments
received, and other information. The
street address for the Docket Office
(phone: 800–647–5527) is in the
ADDRESSES section. Comments will be
available in the AD docket shortly after
receipt.
FOR FURTHER INFORMATION CONTACT:
Kevin Clark, Aerospace Engineer,
Engine Certification Office, FAA, Engine
& Propeller Directorate, 1200 District
Avenue, Burlington, MA 01803; phone:
781–238–7088; fax: 781–238–7199;
email: kevin.m.clark@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this NPRM. Send your comments to an
address listed under the section. Include
‘‘Docket No. FAA–2016–9405;
Directorate Identifier 2016–NE–22–AD’’
at the beginning of your comments. We
specifically invite comments on the
overall regulatory, economic,
environmental, and energy aspects of
this NPRM. We will consider all
comments received by the closing date
and may amend this NPRM because of
those comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this NPRM.
Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2016–
9405; or in person at the Docket
VerDate Sep<11>2014
20:07 Jan 04, 2017
Jkt 241001
Discussion
We propose to adopt an AD for certain
PW PW2037, PW2037M, and PW2040
turbofan engines with EEC, model
number EEC104–40 or EEC104–60,
installed with an EEC software standard
earlier than SCN 5B/I. This proposed
AD was prompted by a report of an
unrecoverable engine IFSD after an ice
crystal icing event. The root cause of the
event is ice crystal icing causing the
engine to flameout. An attempt to restart
the engine was made while the active
clearance control was on, which caused
damage to the HPT and rotor seizure.
This condition, if not corrected, could
result in failure of the HPT, rotor
seizure, failure of one or more engines,
loss of thrust control, and loss of the
airplane.
Related Service Information Under
1 CFR Part 51
We reviewed PW Alert Service
Bulletin (ASB) PW2000 A73–170, dated
July 14, 2016. The ASB describes
PO 00000
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05JAP1
1266
Federal Register / Vol. 82, No. 3 / Thursday, January 5, 2017 / Proposed Rules
procedures for modifying or replacing
the EEC. 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
We are proposing this NPRM because
we evaluated all the relevant
information and determined the unsafe
condition described previously is likely
to exist or develop in other products of
the same type design.
Proposed AD Requirements
This proposed AD would require
modifying or replacing the EEC.
Differences Between This Proposed AD
and the Service Information
PW ASB PW2000 A73–170, dated July
14, 2016, specifies compliance for any
engine flown, or expected to be flown,
in the Asian Pacific latitudes and
longitudes, while this proposed AD
specifically lists the serial numbers (S/
Ns) of certain affected engines. Also, PW
ASB PW2000 A73–170, dated July 14,
2016, provides until 2026 to comply,
while this proposed AD provides until
July 2024 to comply.
Costs of Compliance
We estimate that this NPRM affects
713 engines, installed on airplanes of
U.S. registry.
We estimate the following costs to
comply with this proposed AD:
ESTIMATED COSTS
Action
Labor cost
EEC software installation ........
1.8 work-hours × $85 per hour = $153.00 .............................
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.
We are 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.
mstockstill on DSK3G9T082PROD with PROPOSALS
We determined that this proposed AD
would not have federalism implications
under Executive Order 13132. This
proposed AD would 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 this proposed regulation:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Is not a ‘‘significant rule’’ under
the DOT Regulatory Policies and
Procedures (44 FR 11034, February 26,
1979),
(3) Will not affect intrastate aviation
in Alaska, and
VerDate Sep<11>2014
20:07 Jan 04, 2017
Jkt 241001
Cost per
product
0.00
$153.00
Cost on U.S.
operators
$109,089.00
(4) 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.
(d) Subject
List of Subjects in 14 CFR Part 39
This AD was prompted by unrecoverable
engine in-flight shutdown (IFSD) after an ice
crystal icing event. We are issuing this AD to
prevent failure of the high-pressure turbine
(HPT), rotor seizure, failure of one or more
engines, loss of thrust control, and loss of the
airplane.
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
The Proposed Amendment
Joint Aircraft System Component (JASC) of
America Code 7321, Fuel Control Turbine
Engines.
(e) Unsafe Condition
Accordingly, under the authority
delegated to me by the Administrator,
the FAA proposes to amend 14 CFR part
39 as follows:
(f) Compliance
PART 39—AIRWORTHINESS
DIRECTIVES
(g) Required Action
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
Regulatory Findings
Parts cost
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive (AD):
■
Comply with this AD within the
compliance times specified, unless already
done.
Remove EEC software standards earlier
than SCN 5B/I and install EEC software
eligible for installation as follows:
(1) For engines with serial numbers listed
in Figure 1, remove the software at next shop
visit, or prior to December 2018, whichever
occurs first.
(2) For engines with serial numbers not
listed in Figure 1, remove the software at
next shop visit, or prior to July 2024,
whichever occurs first.
Pratt & Whitney Division: Docket No. FAA–
2016–9405; Directorate Identifier 2016–
NE–22–AD.
FIGURE 1 TO PARAGRAPH (G)—ENGINE
S/NS
(a) Comments Due Date
716402
727103
727134
727152
727158
727189
727202
727204
727231
727239
727240
727251
727252
727253
727257
727269
We must receive comments by February
21, 2017.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Pratt & Whitney
Division (PW) PW2037, PW2037M, and
PW2040 turbofan engines with electronic
engine control (EEC), model number
EEC104–40 or EEC104–60, installed, with an
EEC software standard earlier than SCN 5B/
I.
PO 00000
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05JAP1
727272
727280
727281
727282
727286
727287
727288
728709
728715
728716
728719
728720
728725
728726
728729
728730
728741
728743
728748
728779
728785
728795
728806
728811
728812
728820
728824
728826
728827
728840
728864
728870
Federal Register / Vol. 82, No. 3 / Thursday, January 5, 2017 / Proposed Rules
(h) Installation Prohibition
DEPARTMENT OF TRANSPORTATION
After the effective date of this AD, do not
install any software standard earlier than
SCN 5B/I into any EEC.
Federal Aviation Administration
(i) Definition
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 any major mating flange, except
that the separation of engine flanges solely
for the purposes of transportation without
subsequent maintenance does not constitute
an engine shop visit.
(1) The Manager, Engine Certification
Office, FAA, may approve AMOCs for this
AD. Use the procedures found in 14 CFR
39.19 to make your request. You may email
your request 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.
(k) Related Information
(1) For more information about this AD,
contact Kevin Clark, Aerospace Engineer,
Engine Certification Office, FAA, Engine &
Propeller Directorate, 1200 District Avenue,
Burlington, MA 01803; phone: 781–238–
7088; fax: 781–238–7199; email:
kevin.m.clark@faa.gov.
(2) PW Alert Service Bulletin PW2000
A73–170, dated July 14, 2016, can be
obtained from PW using the contact
information in paragraph (k)(3) of this AD.
(3) For service information identified in
this AD, contact Pratt & Whitney Division,
400 Main St., East Hartford, CT 06118;
phone: 800–565–0140; fax: 860–565–5442.
(4) You may view this referenced service
information at the FAA, Engine & Propeller
Directorate, 1200 District Avenue,
Burlington, MA. For information on the
availability of this material at the FAA, call
781–238–7125.
[FR Doc. 2016–31870 Filed 1–4–17; 8:45 am]
BILLING CODE 4910–13–P
[Docket No. FAA–2016–6968; Directorate
Identifier 2015–SW–020–AD]
RIN 2120–AA64
Airworthiness Directives; Sikorsky
Aircraft Corporation Helicopters (Type
Certificate Previously Held by
Schweizer Aircraft Corporation)
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
(j) Alternative Methods of Compliance
(AMOCs)
Issued in Burlington, Massachusetts, on
December 28, 2016.
Colleen M. D’Alessandro,
Manager, Engine & Propeller Directorate,
Aircraft Certification Service.
14 CFR Part 39
We propose to supersede
airworthiness directive (AD) 93–17–13
for Schweizer Aircraft Corporation and
Hughes Helicopters, Inc. (now Sikorsky
Aircraft Corporation) (Sikorsky) Model
TH55A, 269A, 269A–1, 269B, and 269C
helicopters. AD 93–17–13 requires
installing tachometer markings and
inspecting the driveshaft. This proposed
AD would require recurring inspections
of the driveshaft and would expand the
applicability to include Model 269C–1
helicopters. This proposed AD is
prompted by reports of accidents
because of driveshaft failures. The
actions of this proposed AD are
intended to prevent the unsafe
condition on these products.
DATES: We must receive comments on
this proposed AD by March 6, 2017.
ADDRESSES: You may send comments by
any of the following methods:
• Federal eRulemaking Docket: Go to
https://www.regulations.gov. Follow the
online instructions for sending your
comments electronically.
• Fax: 202–493–2251.
• Mail: Send comments to the U.S.
Department of Transportation, Docket
Operations, M–30, West Building
Ground Floor, Room W12–140, 1200
New Jersey Avenue SE., Washington,
DC 20590–0001.
• Hand Delivery: Deliver to the
‘‘Mail’’ address between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
SUMMARY:
mstockstill on DSK3G9T082PROD with PROPOSALS
Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov 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 proposed AD, the
economic evaluation, any comments
received, and other information. The
street address for the Docket Operations
VerDate Sep<11>2014
20:07 Jan 04, 2017
Jkt 241001
PO 00000
Frm 00037
Fmt 4702
Sfmt 4702
1267
Office (telephone 800–647–5527) is in
the ADDRESSES section. Comments will
be available in the AD docket shortly
after receipt.
For service information identified in
this proposed AD, contact Sikorsky
Aircraft Corporation, Customer Service
Engineering, 124 Quarry Road,
Trumbull, CT 06611; telephone 1–800–
Winged–S or 203–416–4299; email wcs_
cust_service_eng.gr-sik@lmco.com. You
may review the referenced service
information at the FAA, Office of the
Regional Counsel, Southwest Region,
10101 Hillwood Pkwy., Room 6N–321,
Fort Worth, TX 76177.
FOR FURTHER INFORMATION CONTACT:
Blaine Williams, Aerospace Engineer,
Boston Aircraft Certification Office,
Engine & Propeller Directorate, 1200
District Avenue, Burlington,
Massachusetts 01803; telephone (781)
238–7161; email blaine.williams@
faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to participate in this
rulemaking by submitting written
comments, data, or views. We also
invite comments relating to the
economic, environmental, energy, or
federalism impacts that might result
from adopting the proposals in this
document. The most helpful comments
reference a specific portion of the
proposal, explain the reason for any
recommended change, and include
supporting data. To ensure the docket
does not contain duplicate comments,
commenters should send only one copy
of written comments, or if comments are
filed electronically, commenters should
submit only one time.
We will file in the docket all
comments that we receive, as well as a
report summarizing each substantive
public contact with FAA personnel
concerning this proposed rulemaking.
Before acting on this proposal, we will
consider all comments we receive on or
before the closing date for comments.
We will consider comments filed after
the comment period has closed if it is
possible to do so without incurring
expense or delay. We may change this
proposal in light of the comments we
receive.
Discussion
On August 31, 1993, we issued AD
93–17–13, Amendment 39–8684 (58 FR
51770, October 5, 1993), for Schweizer
Aircraft Corporation and Hughes
Helicopters, Inc., Model 269A, 269A–1,
269B, 269C, and TH55A helicopters. AD
93–17–13 requires within 30 days or
100 hours time-in-service (TIS),
E:\FR\FM\05JAP1.SGM
05JAP1
Agencies
[Federal Register Volume 82, Number 3 (Thursday, January 5, 2017)]
[Proposed Rules]
[Pages 1265-1267]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-31870]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2016-9405; Directorate Identifier 2016-NE-22-AD]
RIN 2120-AA64
Airworthiness Directives; Pratt & Whitney Division Turbofan
Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to adopt a new airworthiness directive (AD) for
certain Pratt & Whitney Division (PW) PW2037, PW2037M, and PW2040
turbofan engines. This proposed AD was prompted by an unrecoverable
engine in-flight shutdown (IFSD) after an ice crystal icing event. This
proposed AD would require installing a software standard eligible for
installation and preclude the use of electronic engine control (EEC)
software standards earlier than SCN 5B/I. We are proposing this AD to
correct the unsafe condition on these products.
DATES: We must receive comments on this proposed AD by February 21,
2017.
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 https://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 service information identified in this NPRM, contact Pratt &
Whitney Division, 400 Main St., East Hartford, CT 06118; phone: 800-
565-0140; fax: 860-565-5442. You may view this service information at
the FAA, Engine & Propeller Directorate, 1200 District Avenue,
Burlington, MA. For information on the availability of this material at
the FAA, call 781-238-7125.
Examining the AD Docket
You may examine the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2016-
9405; or in person at the Docket Management Facility between 9 a.m. and
5 p.m., Monday through Friday, except Federal holidays. The AD docket
contains this proposed AD, the regulatory evaluation, any comments
received, and other information. The street address for the Docket
Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will
be available in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Kevin Clark, Aerospace Engineer,
Engine Certification Office, FAA, Engine & Propeller Directorate, 1200
District Avenue, Burlington, MA 01803; phone: 781-238-7088; fax: 781-
238-7199; email: kevin.m.clark@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments about this NPRM. Send your comments to an address listed
under the section. Include ``Docket No. FAA-2016-9405; Directorate
Identifier 2016-NE-22-AD'' at the beginning of your comments. We
specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this NPRM. We will consider all
comments received by the closing date and may amend this NPRM because
of those comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this NPRM.
Discussion
We propose to adopt an AD for certain PW PW2037, PW2037M, and
PW2040 turbofan engines with EEC, model number EEC104-40 or EEC104-60,
installed with an EEC software standard earlier than SCN 5B/I. This
proposed AD was prompted by a report of an unrecoverable engine IFSD
after an ice crystal icing event. The root cause of the event is ice
crystal icing causing the engine to flameout. An attempt to restart the
engine was made while the active clearance control was on, which caused
damage to the HPT and rotor seizure. This condition, if not corrected,
could result in failure of the HPT, rotor seizure, failure of one or
more engines, loss of thrust control, and loss of the airplane.
Related Service Information Under 1 CFR Part 51
We reviewed PW Alert Service Bulletin (ASB) PW2000 A73-170, dated
July 14, 2016. The ASB describes
[[Page 1266]]
procedures for modifying or replacing the EEC. 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
We are proposing this NPRM because we evaluated all the relevant
information and determined the unsafe condition described previously is
likely to exist or develop in other products of the same type design.
Proposed AD Requirements
This proposed AD would require modifying or replacing the EEC.
Differences Between This Proposed AD and the Service Information
PW ASB PW2000 A73-170, dated July 14, 2016, specifies compliance
for any engine flown, or expected to be flown, in the Asian Pacific
latitudes and longitudes, while this proposed AD specifically lists the
serial numbers (S/Ns) of certain affected engines. Also, PW ASB PW2000
A73-170, dated July 14, 2016, provides until 2026 to comply, while this
proposed AD provides until July 2024 to comply.
Costs of Compliance
We estimate that this NPRM affects 713 engines, installed on
airplanes of U.S. registry.
We estimate the following costs to comply with this proposed AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
EEC software installation.......... 1.8 work-hours x $85 per 0.00 $153.00 $109,089.00
hour = $153.00.
----------------------------------------------------------------------------------------------------------------
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.
We are 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
We determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 this proposed
regulation:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, and
(4) 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 Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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 (AD):
Pratt & Whitney Division: Docket No. FAA-2016-9405; Directorate
Identifier 2016-NE-22-AD.
(a) Comments Due Date
We must receive comments by February 21, 2017.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Pratt & Whitney Division (PW) PW2037,
PW2037M, and PW2040 turbofan engines with electronic engine control
(EEC), model number EEC104-40 or EEC104-60, installed, with an EEC
software standard earlier than SCN 5B/I.
(d) Subject
Joint Aircraft System Component (JASC) of America Code 7321,
Fuel Control Turbine Engines.
(e) Unsafe Condition
This AD was prompted by unrecoverable engine in-flight shutdown
(IFSD) after an ice crystal icing event. We are issuing this AD to
prevent failure of the high-pressure turbine (HPT), rotor seizure,
failure of one or more engines, loss of thrust control, and loss of
the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Action
Remove EEC software standards earlier than SCN 5B/I and install
EEC software eligible for installation as follows:
(1) For engines with serial numbers listed in Figure 1, remove
the software at next shop visit, or prior to December 2018,
whichever occurs first.
(2) For engines with serial numbers not listed in Figure 1,
remove the software at next shop visit, or prior to July 2024,
whichever occurs first.
Figure 1 to Paragraph (g)--Engine S/Ns
------------------------------------------------------------------------
------------------------------------------------------------------------
716402.................................. 727272 728741
727103.................................. 727280 728743
727134.................................. 727281 728748
727152.................................. 727282 728779
727158.................................. 727286 728785
727189.................................. 727287 728795
727202.................................. 727288 728806
727204.................................. 728709 728811
727231.................................. 728715 728812
727239.................................. 728716 728820
727240.................................. 728719 728824
727251.................................. 728720 728826
727252.................................. 728725 728827
727253.................................. 728726 728840
727257.................................. 728729 728864
727269.................................. 728730 728870
------------------------------------------------------------------------
[[Page 1267]]
(h) Installation Prohibition
After the effective date of this AD, do not install any software
standard earlier than SCN 5B/I into any EEC.
(i) Definition
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 any major mating flange, except that the separation of
engine flanges solely for the purposes of transportation without
subsequent maintenance does not constitute an engine shop visit.
(j) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Engine Certification Office, FAA, may approve
AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make
your request. You may email your request 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.
(k) Related Information
(1) For more information about this AD, contact Kevin Clark,
Aerospace Engineer, Engine Certification Office, FAA, Engine &
Propeller Directorate, 1200 District Avenue, Burlington, MA 01803;
phone: 781-238-7088; fax: 781-238-7199; email:
kevin.m.clark@faa.gov.
(2) PW Alert Service Bulletin PW2000 A73-170, dated July 14,
2016, can be obtained from PW using the contact information in
paragraph (k)(3) of this AD.
(3) For service information identified in this AD, contact Pratt
& Whitney Division, 400 Main St., East Hartford, CT 06118; phone:
800-565-0140; fax: 860-565-5442.
(4) You may view this referenced service information at the FAA,
Engine & Propeller Directorate, 1200 District Avenue, Burlington,
MA. For information on the availability of this material at the FAA,
call 781-238-7125.
Issued in Burlington, Massachusetts, on December 28, 2016.
Colleen M. D'Alessandro,
Manager, Engine & Propeller Directorate, Aircraft Certification
Service.
[FR Doc. 2016-31870 Filed 1-4-17; 8:45 am]
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