[Federal Register Volume 84, Number 166 (Tuesday, August 27, 2019)]
[Rules and Regulations]
[Pages 44681-44683]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-18339]
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Rules and Regulations
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains regulatory documents
having general applicability and legal effect, most of which are keyed
to and codified in the Code of Federal Regulations, which is published
under 50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by the Superintendent of Documents.
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Federal Register / Vol. 84, No. 166 / Tuesday, August 27, 2019 /
Rules and Regulations
[[Page 44681]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2019-0365; Product Identifier 2019-NE-12-AD; Amendment
39-19718; AD 2019-16-15]
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 adopting a new airworthiness directive (AD) for all
Pratt & Whitney (PW) PW1519G, PW1521G, PW1521GA, PW1524G, PW1525G,
PW1521G-3, PW1524G-3, PW1525G-3, PW1919G, PW1921G, PW1922G, PW1923G,
and PW1923G-A model turbofan engines. This AD was prompted by corrosion
found on the high-pressure compressor (HPC) front hub, which could
result in certain HPC front hubs cracking before reaching their
published life limit. This AD requires revisions to the Airworthiness
Limitations Section (ALS) of the manufacturer's Instructions for
Continued Airworthiness (ICA) and air carrier's approved Continued
Airworthiness Maintenance Programs (CAMP) to incorporate new or more
restrictive airworthiness limitations. The FAA is issuing this AD to
address the unsafe condition on these products.
DATES: This AD is effective October 1, 2019.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of October 1,
2019.
ADDRESSES: For service information identified in this final rule,
contact Pratt & Whitney, 400 Main Street, East Hartford, CT 06118;
phone: 800-565-0140; fax: 860-565-5442; email: [email protected];
internet: http://fleetcare.pw.utc.com. You may view this service
information at the FAA, Engine and Propeller Standards 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 on the internet at http://www.regulations.gov by searching
for and locating Docket No. FAA-2019-0365.
Examining the AD Docket
You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0365; 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 regulatory evaluation, 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: Kevin M. Clark, Aerospace Engineer,
ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone:
781-238-7088; fax: 781-238-7199; email: [email protected].
SUPPLEMENTARY INFORMATION:
Discussion
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, PW1521GA, PW1524G, PW1525G, PW1521G-3, PW1524G-3, PW1525G-3,
PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A model turbofan
engines. The NPRM published in the Federal Register on May 31, 2019 (84
FR 25203). The NPRM was prompted by corrosion found on the HPC front
hub, which could result in certain HPC front hubs cracking before
reaching their published life limit. The NPRM proposed to require
revisions to the ALS of the manufacturer's ICA and air carrier's
approved CAMP to incorporate new or more restrictive airworthiness
limitations. The FAA is issuing this AD to address the unsafe condition
on these products.
Comments
The FAA gave the public the opportunity to participate in
developing this final rule. The FAA received no comments on the NPRM or
on the determination of the cost to the public.
Conclusion
The FAA reviewed the relevant data and determined that air safety
and the public interest require adopting this final rule as proposed
except for minor editorial changes. The FAA has determined that these
minor changes:
Are consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
Related Service Information Under 1 CFR Part 51
The FAA reviewed PW Service Bulletin (SB) PW1000G-A-72-00-0109-00A-
930A-D, Issue No. 001, dated April 2, 2019 (``PW SB PW1000G-A-72-00-
0109-00A-930A-D''), and PW SB PW1000G-A-72-00-0058-00B-930A-D, Issue
No. 002, dated May 10, 2019 (``PW SB PW1000G-A-72-00-0058-00B-930A-
D''). PW SB PW1000G-A-72-00-0109-00A-930A-D describes the revised
maximum cycle limits of the HPC front hub for PW PW1500G engines. PW SB
PW1000G-A-72-00-0058-00B-930A-D describes the revised maximum cycle
limits of the HPC front hub for PW PW1900 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 the ADDRESSES section.
Costs of Compliance
The FAA estimates that this AD affects 18 engines installed on
airplanes of U.S. registry.
The FAA estimates the following costs to comply with this AD:
[[Page 44682]]
Estimated Costs
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Cost per Cost on U.S.
Action Labor cost Parts cost product operators
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Revise the ALS and CAMP............... 1 work-hour x $85 per $0 $85 $1,530
hour = $85.
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Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. Subtitle VII: Aviation Programs,
describes in more detail the scope of the Agency's authority.
The FAA is issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701: ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
This AD is issued in accordance with authority delegated by the
Executive Director, Aircraft Certification Service, as authorized by
FAA Order 8000.51C. In accordance with that order, issuance of ADs is
normally a function of the Compliance and Airworthiness Division, but
during this transition period, the Executive Director has delegated the
authority to issue ADs applicable to engines, propellers, and
associated appliances to the Manager, Engine and Propeller Standards
Branch, Policy and Innovation Division.
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.
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 (AD):
2019-16-15 Pratt & Whitney: Amendment 39-19718; Docket No. FAA-2019-
0365; Product Identifier 2019-NE-12-AD.
(a) Effective Date
This AD is effective October 1, 2019.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Pratt & Whitney (PW) PW1519G, PW1521G,
PW1521GA, PW1524G, PW1525G, PW1521G-3, PW1524G-3, 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 corrosion found on the high-pressure
compressor (HPC) front hub, which could result in certain HPC front
hubs cracking before reaching their published life limit. The FAA is
issuing this AD to prevent failure of the HPC front hub. The unsafe
condition, if not addressed, could result in uncontained release of
the HPC front hub, damage to the engine, and damage to the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Action
Within 90 days after the effective date of this AD, revise the
Airworthiness Limitations Section of the PW Instructions for
Continued Airworthiness, and for air carrier operations, the
approved continuous airworthiness maintenance program, with the
following maximum cycle limits for HPC front hub, part number
30G3210.
(1) For PW PW1519G, PW1521G, PW1521GA, PW1524G, PW1525G,
PW1521G-3, PW1524G-3, and PW1525G-3 model turbofan engines, use the
cycle limits established in Table 3, Revision to Table of Limits, of
PW Service Bulletin (SB) PW1000G-A-72-00-0109-00A-930A-D, Issue No.
001, dated April 2, 2019.
(2) For PW PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A
model turbofan engines, use the cycle limits established in Table 3,
Revision to Table of Limits, of PW SB PW1000G-A-72-00-0058-00B-930A-
D, Issue No. 002, dated May 10, 2019.
(h) 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 (i) of this AD. You may email your request
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.
(i) Related Information
For more information about this AD, contact Kevin M. Clark,
Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue,
Burlington, MA 01803; phone: 781-238-7088; fax: 781-238-7199; email:
[email protected].
(j) 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 (PW) Service Bulletin (SB) PW1000G-A-72-00-
0109-00A-930A-D, Issue No. 001, dated April 2, 2019.
(ii) PW SB PW1000G-A-72-00-0058-00B-930A-D, Issue No. 002, dated
May 10, 2019.
(3) For PW service information identified in this AD, contact
Pratt & Whitney, 400 Main Street, East Hartford, CT 06118; phone:
800-565-0140; fax: 860-565-5442; email:
[[Page 44683]]
[email protected]; internet: http://fleetcare.pw.utc.com.
(4) You may view this service information at FAA, Engine and
Propeller Standards 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, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued in Burlington, Massachusetts, on August 19, 2019.
Karen M. Grant,
Acting Manager, Engine & Propeller Standards Branch, Aircraft
Certification Service.
[FR Doc. 2019-18339 Filed 8-26-19; 8:45 am]
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