[Federal Register Volume 84, Number 241 (Monday, December 16, 2019)]
[Proposed Rules]
[Pages 68374-68376]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-26871]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2019-0832; Product Identifier 2019-NE-28-AD]
RIN 2120-AA64
Airworthiness Directives; International Aero Engines AG Turbofan
Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for International Aero Engines AG (IAE) V2500-A1, V2522-A5, V2524-A5,
V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5,
and V2533-A5 turbofan engine models with a certain diffuser case
assembly installed. This proposed AD was prompted by a report of a
manufacturing quality escape that could impact the life of the diffuser
case assembly. This proposed AD would require removal of the affected
diffuser case assembly from service and replacement with a part
eligible for installation. The FAA is proposing this
[[Page 68375]]
AD to address the unsafe condition on these products.
DATES: The FAA must receive comments on this proposed AD by January 30,
2020.
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
International Aero Engines AG, 400 Main Street, East Hartford, CT
06118; phone: 800-565-0140; 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.
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-2019-
0832; 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 NPRM, the regulatory evaluation, any comments received, and other
information. The street address for Docket Operations is listed above.
Comments will be available in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Nicholas Paine, Aerospace Engineer,
ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803; phone:
781-238-7116; fax: 781-238-7199; email: [email protected].
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under the ADDRESSES section. Include ``Docket No. FAA-2019-0832;
Product Identifier 2019-NE-28-AD'' at the beginning of your comments.
The FAA specifically invites comments on the overall regulatory,
economic, environmental, and energy aspects of this NPRM. The FAA will
consider all comments received by the closing date and may amend this
NPRM because of those comments.
The FAA will post all comments received, without change, to https://www.regulations.gov, including any personal information you provide.
The FAA will also post a report summarizing each substantive verbal
contact received about this NPRM.
Discussion
The FAA received a report of a manufacturing quality escape that
identified certain diffuser case assemblies which did not meet material
specification. According to an IAE investigation, the production
defects in the affected diffuser case assemblies could impact the part
design life and, therefore, the diffuser case assemblies require
replacement. This condition, if not addressed, could result in the
uncontained release of the diffuser case assembly, damage to the
engine, and damage to the airplane.
Related Service Information
The FAA reviewed IAE Non-Modification Service Bulletin (NMSB)
V2500-ENG-72-0707, dated July 1, 2019. The NMSB describes procedures
for replacing the affected diffuser case assemblies.
FAA's Determination
The FAA is proposing this AD because it 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.
Differences Between This Proposed AD and the Service Information
IAE NMSB V2500-ENG-72-0707, dated July 1, 2019, identifies IAE
V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, and
V2533-A5 turbofan engine models as applicable to replacement of the
affected diffuser case assemblies. This proposed FAA AD additionally
identifies V2500-A1, V2525-D5, V2528-D5, and V2531-E5 turbofan engine
models to the applicability due to operators having the ability to
install the affected diffuser case assemblies on any of the turbofan
engine models.
Proposed AD Requirements
This proposed AD would require removal of the affected diffuser
case assembly from service and its replacement with a part eligible for
installation.
Costs of Compliance
The FAA estimates that this proposed AD affects two engines
installed on airplanes of U.S. registry.
The FAA estimates the following costs to comply with this proposed
AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
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Replace the diffuser case assembly.. 70 work-hours x $85 per $250,000 $255,950 $511,900
hour = $5,950.
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According to the manufacturer, some of the costs of this proposed
AD may be covered under warranty, thereby reducing the cost impact on
affected individuals. The FAA does not control warranty coverage for
affected individuals. As a result, the FAA has included all costs in
our cost estimate.
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
[[Page 68376]]
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
The FAA 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) 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 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):
International Aero Engines AG: Docket No. FAA-2019-0832; Product
Identifier 2019-NE-28-AD.
(a) Comments Due Date
The FAA must receive comments by January 30, 2020.
(b) Affected ADs
None.
(c) Applicability
This AD applies to International Aero Engines AG (IAE) V2500-A1,
V2522-A5, V2524-A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-
D5, V2530-A5, V2531-E5, and V2533-A5 turbofan engine models with
diffuser case assembly, serial number PGGUBB8267, PGGUBB8271,
PGGUA95825, PGGUA95827, or PGGUBB8264, installed.
(d) Subject
Joint Aircraft System Component (JASC) Code 7230, Turbine Engine
Compressor Section.
(e) Unsafe Condition
This AD was prompted by a report of a manufacturing quality
escape that could impact the life of the diffuser case assembly. The
FAA is issuing this AD to prevent failure of the diffuser case
assembly. The unsafe condition, if not addressed, could result in
the uncontained release of the diffuser case assembly, 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
At the next engine shop visit after the effective date of the AD
or before accumulating 10,000 cycles since new, whichever occurs
first, remove the affected diffuser case assembly from service and
replace with a part eligible for installation.
Note to paragraph (g): IAE Non-Modification Service Bulletin
(NMSB) V2500-ENG-72-0707, dated July 1, 2019, contains guidance for
replacing the diffuser case assembly.
(h) 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 pairs of major mating engine flanges, except that the
separation of engine flanges solely for the purposes of
transportation without subsequent engine maintenance does not
constitute an engine shop visit.
(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. 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.
(j) Related Information
(1) For more information about this AD, contact Nicholas Paine,
Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue,
Burlington, MA 01803; phone: 781-238-7116; fax: 781-238-7199; email:
[email protected].
(2) For service information identified in this AD, contact
International Aero Engines AG, 400 Main Street, East Hartford, CT
06118; phone: 800-565-0140; email: [email protected]; internet:
http://fleetcare.pw.utc.com. You may view this referenced 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.
Issued in Burlington, Massachusetts, on December 6, 2019.
Robert J. Ganley,
Manager, Engine & Propeller Standards Branch, Aircraft Certification
Service.
[FR Doc. 2019-26871 Filed 12-13-19; 8:45 am]
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