Rule2021-16544
Airworthiness Directives; Pratt & Whitney Canada Corp. Turboshaft Engines
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
August 5, 2021
Effective
September 9, 2021
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Pratt & Whitney Canada Corp. (P&WC) PW210A and PW210S model turboshaft engines. This AD was prompted by a report from the manufacturer that the Automated Damage Tracking System (ADTS) may under-count the number of cycles accrued by the impeller and the high-pressure compressor (HPC) rotor. This AD requires use of the manual low-cycle fatigue (LCF) counting method in place of the ADTS counting method to determine the number of cycles accrued by the impeller and HPC rotor. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
<html>
<head>
<title>Federal Register, Volume 86 Issue 148 (Thursday, August 5, 2021)</title>
</head>
<body><pre>
[Federal Register Volume 86, Number 148 (Thursday, August 5, 2021)]
[Rules and Regulations]
[Pages 42698-42700]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-16544]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2020-0103; Project Identifier MCAI-2020-00604-E;
Amendment 39-21659; AD 2021-15-12]
RIN 2120-AA64
Airworthiness Directives; Pratt & Whitney Canada Corp. Turboshaft
Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Pratt & Whitney Canada Corp. (P&WC) PW210A and PW210S model turboshaft
engines. This AD was prompted by a report from the manufacturer that
the Automated Damage Tracking System (ADTS) may under-count the number
of cycles accrued by the impeller and the high-pressure compressor
(HPC) rotor. This AD requires use of the manual low-cycle fatigue (LCF)
counting method in place of the ADTS counting method to determine the
number of cycles accrued by the impeller and HPC rotor. The FAA is
issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective September 9, 2021.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of September 9,
2021.
ADDRESSES: For service information identified in this final rule,
contact Pratt & Whitney Canada Corp., 1000 Marie-Victorin, Longueuil,
Quebec, J4G 1A1 Canada; phone: (800) 268-8000. You may view this
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
(781) 238-7759. It is also available at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2020-0103.
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-2020-0103; 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
[[Page 42699]]
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: Barbara Caufield, Aviation Safety
Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803;
phone: (781) 238-7146; fax: (781) 238-7199; email:
<a href="/cdn-cgi/l/email-protection#dab8bba8b8bba8bbf4b9bbafbcb3bfb6be9abcbbbbf4bdb5ac"><span class="__cf_email__" data-cfemail="076566756566756629646672616e626b634761666629606871">[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 P&WC PW210A and
PW210S model turboshaft engines. The NPRM published in the Federal
Register on February 26, 2021 (86 FR 11651). The NPRM was prompted by a
report from the manufacturer that the ADTS may under-count the number
of cycles accrued by the impeller and the HPC rotor. The impeller and
HPC rotor are both life-limited components and exceeding their
published life limits could result in the failure of these components.
In the NPRM, the FAA proposed to require the use of the manual LCF
counting method in place of the ADTS counting method to determine the
number of cycles accrued by the impeller and HPC rotor. The FAA is
issuing this AD to address the unsafe condition on these products.
Transport Canada Civil Aviation (Transport Canada), which is the
aviation authority for Canada, has issued Transport Canada AD CF-2020-
13, dated April 28, 2020 (referred to after this as ``the MCAI''), to
address the unsafe condition on these products. The MCAI states:
The engine manufacturer has discovered that the Automated Damage
Tracking System (ADTS) may under-count the number of cycles accrued
by the impeller and the High Pressure (HP) compressor rotor. The
impeller and HP compressor rotor are both life limited components
and exceeding their published life limits could result in the
failure of these components.
Failure of the impeller or HP compressor rotor could result in
the uncontained release of the impeller or the HP compressor rotor,
and subsequently could result in damage to the engine, damage to the
helicopter, and loss of control of the helicopter.
This [Transport Canada] AD mandates the use of the Manual Low
Cycle Fatigue (LCF) Counting method to ensure that the impeller and
HP compressor rotor do not exceed their published life limits.
You may obtain further information by examining the MCAI in the AD
docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating
Docket No. FAA-2020-0103.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from one commenter. The individual
commenter supported the NPRM without change.
Clarification That Reporting Is Not Required
The FAA added paragraph (i) to this AD to clarify that the
reporting specified in P&WC Alert Service Bulletin (ASB) No. PW210-72-
A57142, Revision No. 1, dated March 26, 2020, and P&WC ASB No. PW210-
72-A57143, Revision No. 1, dated March 26, 2020, is not required by
this AD.
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, and
any other changes described previously, this AD is adopted as proposed
in the NPRM.
Related Service Information Under 1 CFR Part 51
The FAA reviewed Pratt & Whitney Canada Corp. Alert Service
Bulletin (ASB) No. PW210-72-A57142, Revision No. 1, dated March 26,
2020 (ASB No. PW210-72-A57142); and Pratt & Whitney Canada Corp. ASB
No. PW210-72-A57143, Revision No. 1, dated March 26, 2020 (ASB No.
PW210-72-A57143). ASB No. PW210-72-A57142 specifies procedures for
calculating the correct, current LCF cycle count for the impeller and
HPC rotor on PW210A model turboshaft engines. ASB No. PW210-72-A57143
specifies procedures for calculating the correct, current LCF cycle
count for the impeller and HPC rotor installed on PW210S model
turboshaft engines. 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 ADDRESSES.
Other Related Service Information
The FAA reviewed Pratt & Whitney Canada Corp. Task 00-00-00-860-801
and Task 00-00-00-860-803 of Pratt & Whitney Canada Corp. Engine
Maintenance Manual (EMM), Manual Part No. 30L2392, Airworthiness
Limitations Section (ALS), both at Revision 13, dated September 28,
2020.
Pratt & Whitney Canada Corp. Task 00-00-00-860-801 of Pratt &
Whitney Canada Corp. EMM, Manual Part No. 30L2392, identifies the LCF
life limits for the impeller and HPC rotor. Pratt & Whitney Canada
Corp. Task 00-00-00-860-803 of Pratt & Whitney Canada Corp. EMM, Manual
Part No. 30L2392, describes procedures for manually calculating the
correct, current LCF cycle count for the impeller and HPC rotor and
provides the formula for manually calculating the accumulated total
cycles for the impeller and HPC rotor.
Interim Action
The FAA considers this AD to be an interim action. If final action
is later identified, the FAA might consider additional rulemaking.
Costs of Compliance
The FAA estimates that this AD affects 66 engines installed on
helicopters of U.S. registry.
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
----------------------------------------------------------------------------------------------------------------
Manually calculate LCF cycles....... 1 work-hour x $85 per $0 $85 $5,610
hour = $85.
----------------------------------------------------------------------------------------------------------------
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
[[Page 42700]]
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 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.
Adoption of 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:
2021-15-12 Pratt & Whitney Canada Corp.: Amendment 39-21659; Docket
No. FAA-2020-0103; Project Identifier MCAI-2020-00604-E.
(a) Effective Date
This airworthiness directive (AD) is effective September 9,
2021.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Pratt & Whitney Canada Corp. (P&WC) PW210A
and PW210S model turboshaft engines.
(d) Subject
Joint Aircraft System Component (JASC) Code 7230, Turbine Engine
Compressor Section.
(e) Unsafe Condition
This AD was prompted by a report from the manufacturer that the
Automated Damage Tracking System (ADTS) may under-count the number
of cycles accrued by the impeller and the high-pressure compressor
(HPC) rotor, which could result in the failure of these components.
The FAA is issuing this AD to prevent failure of the impeller and
the HPC rotor. The unsafe condition, if not addressed, could result
in the uncontained release of the impeller or the HPC rotor, damage
to the engine, damage to the helicopter, and loss of control of the
helicopter.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
Before exceeding 7,000 starts or 14,000 flight cycles since new
on the affected engine, or prior to removal of the engine from the
aircraft for the purpose of sending the engine to a repair or
overhaul facility, whichever occurs first after the effective date
of this AD:
(1) Use the manual low-cycle fatigue (LCF) counting method to
determine the accumulated LCF cycles for the impeller and the HPC
rotor using paragraph 3.A., Accomplishment Instructions, of P&WC
Alert Service Bulletin (ASB) No. PW210-72-A57142, Revision No. 1,
dated March 26, 2020, or P&WC ASB No. PW210-72-A57143, Revision No.
1, dated March 26, 2020, as applicable for the engine model.
(2) After performing the actions required by paragraph (g)(1) of
this AD, use the manual LCF counting method specified in paragraph
(g)(1) of this AD to count subsequent LCF cycles on the impeller and
HPC rotor. Do not use the ADTS to count subsequent LCF cycles on the
impeller or the HPC rotor.
(h) Definition
For the purpose of this AD, a ``start'' is an engine start
followed by one or more flights.
(i) No Reporting Requirement
The reporting requirement specified in the Accomplishment
Instructions, paragraph 3.A.4., of P&WC ASB No. PW210-72-A57142,
Revision No. 1, dated March 26, 2020, and paragraph 3.A.4., of P&WC
ASB No. PW210-72-A57143, Revision No. 1, dated March 26, 2020, is
not required by this AD.
(j) 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
ECO Branch, send it to the attention of the person identified in
Related Information.
(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 Barbara
Caufield, Aviation Safety Engineer, ECO Branch, FAA, 1200 District
Avenue, Burlington, MA 01803; phone: (781) 238-7146; fax: (781) 238-
7199; email: <a href="/cdn-cgi/l/email-protection#64060516060516054a070511020d010800240205054a030b12"><span class="__cf_email__" data-cfemail="f092918292918291de9391859699959c94b0969191de979f86">[email protected]</span></a>.
(2) Refer to Transport Canada Civil Aviation (TCCA) AD CF-2020-
13, dated April 28, 2020, for more information. You may examine the
TCCA AD in the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching
for and locating Docket No. FAA-2020-0103.
(l) 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.
(i) Pratt & Whitney Canada Corp. (P&WC) Alert Service Bulletin
(ASB) No. PW210-72-A57142, Revision No. 1, dated March 26, 2020.
(ii) P&WC ASB No. PW210-72-A57143, Revision No. 1, dated March
26, 2020.
(3) For P&WC service information identified in this AD, contact
Pratt & Whitney Canada Corp., 1000 Marie-Victorin, Longueuil,
Quebec, J4G 1A1 Canada; phone: (800) 268-8000.
(4) You may view this service information at 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 (781) 238-7759.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, email: <a href="/cdn-cgi/l/email-protection#5b3d3e3f293e3c75373e3c3a371b353a293a753c342d"><span class="__cf_email__" data-cfemail="5d3b38392f383a7331383a3c311d333c2f3c733a322b">[email protected]</span></a>, or go to: <a href="https://www.archives.gov/federal-register/cfr/ibr-locations.html">https://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on July 15, 2021.
Ross Landes,
Deputy Director for Regulatory Operations, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2021-16544 Filed 8-4-21; 8:45 am]
BILLING CODE 4910-13-P
</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>Indexed from Federal Register on August 5, 2021.
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.