83 FR 26887 - Airworthiness Directives; International Aero Engines (IAE) Turbofan engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 112 (June 11, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 112 (June 11, 2018)
| Page Range | 26887-26889 | |
| FR Document | 2018-12452 |
[Federal Register Volume 83, Number 112 (Monday, June 11, 2018)] [Proposed Rules] [Pages 26887-26889] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-12452] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0404; Product Identifier 2018-NE-15-AD] RIN 2120-AA64 Airworthiness Directives; International Aero Engines (IAE) 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 all International Aero Engines (IAE) PW1133G-JM, PW1133GA-JM, PW1130G-JM, PW1127G-JM, PW1127GA-JM, PW1127G1-JM, PW1124G-JM, PW1124G1-JM, and PW1122G-JM turbofan engines. This proposed AD was prompted by reports of in-flight engine shutdowns and aborted take-offs as the result of certain parts affecting the durability of the rear high-pressure compressor (HPC) rotor hub knife edge seal. This proposed AD would require replacing the diffuser case air seal assembly, the high- pressure turbine (HPT) 2nd-stage vane assembly, and the HPT 2nd-stage borescope stator vane assembly with parts eligible for installation. We are proposing this AD to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by July 26, 2018. 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 http://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, 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 http://www.regulations.gov by searching for and locating Docket No. FAA-2018- 0404; 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 (phone: 800-647- 5527) is listed above. Comments will be available in the AD docket shortly after receipt. 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: Comments Invited We invite 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-2018-0404; Product Identifier 2018-NE-15-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 http://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 In-flight engine shutdowns and aborted take-offs have occurred on certain IAE turbofan engines as the result of a failed knife edge seal on engine serial numbers (ESNs) P770450 through P770614. In response to these events, the European Aviation Safety Agency published AD 2018- 0041R1, dated March 23, 2018 (corrected on April 4, 2018). Additionally, the FAA published AD 2018-04-01 (83 FR 6791, [[Page 26888]] February 15, 2018), for all Airbus Model A320-271N, A321-271N, and A321-272N airplanes. Both ADs describe procedures to de-pair affected airplanes and to discontinue extended operations (ETOPS) for airplanes with at least one affected engine. An analysis by the manufacturer of these engine failures has shown that production modifications to the diffuser case air seal assembly and the 2nd-stage HPT vane assemblies, beginning with ESN P770450, negatively affected the durability of the rear HPC rotor hub knife edge seal. The modifications caused the knife edge seal on the rear HPC rotor hub to experience high-cycle fatigue and failure. This condition, if not addressed, could result in failure of one or more engines, loss of thrust control, and loss of the airplane. Related Service Information We reviewed Pratt & Whitney Alert Service Bulletin (ASB) PW1000G-C- 72-00-0099-00A-930A-D, Issue No. 002, dated March 15, 2018. The ASB describes procedures for removing production modifications to the diffuser case air seal assembly, HPT 2nd-stage vane assembly, and the HPT 2nd-stage borescope stator vane assembly, beginning with ESN P770450, which resulted in an unanticipated increase in stress at the rear HPC rotor hub knife edge seal. FAA's Determination We are proposing this AD 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 removing from service and replacing the diffuser case air seal assembly, P/N 30G4993-01; the HPT 2nd-stage vane assembly, P/N 30G7572; and the HPT 2nd-stage borescope stator vane assembly, P/N 30G7672, with parts eligible for installation. Interim Action We consider this proposed AD interim action. The manufacturer is currently developing a modification that will address the unsafe condition identified in this AD. Once this modification is developed, approved, and available, we might consider additional rulemaking. Costs of Compliance We estimate that this proposed AD affects 16 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 ---------------------------------------------------------------------------------------------------------------- Removing modifications................ 0 work-hours x $85 per $44,000 $44,000 $704,000 hour = $0. ---------------------------------------------------------------------------------------------------------------- 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. 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 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): International Aero Engines: Docket No. FAA-2018-0404; Product Identifier 2018-NE-15-AD. (a) Comments Due Date We must receive comments by July 26, 2018. (b) Affected ADs None. (c) Applicability This AD applies to International Aero Engines (IAE) PW1133G-JM, PW1133GA-JM, PW1130G-JM, PW1127G-JM, PW1127GA-JM, PW1127G1-JM, PW1124G-JM, PW1124G1-JM, and PW1122G-JM turbofan engines with engine serial numbers (ESNs) P770450 through P770614. [[Page 26889]] (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 engine shutdowns and aborted take-offs that were the result of a failed knife edge seal on ESNs P770450 through P770614. We are issuing this AD to prevent failure of the rear high-pressure compressor rotor hub knife edge seal. The unsafe condition, if not addressed, could result in 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 Actions At the next engine shop visit after the effective date of this AD, do the following: (1) Remove from service the diffuser case air seal assembly, part number (P/N) 30G4993-01, and replace with a part eligible for installation. (2) Remove from service the high-pressure turbine (HPT) 2nd- stage vane assembly, P/N 30G7572, and replace with a part eligible for installation. (3) Remove from service HPT 2nd-stage borescope stator vane assembly, P/N 30G7672, and replace with a part eligible for installation. (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 (lettered flanges). The separation of engine flanges solely for the purpose of transportation of the engine 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 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]. (2) For service information identified in this AD, contact International Aero Engines, 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, MA, on June 6, 2018. Robert J. Ganley, Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2018-12452 Filed 6-8-18; 8:45 am] BILLING CODE 4910-13-P
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(h) No Alternative Actions or Intervals Issued in Des Moines, Washington, on May Engines, 400 Main Street, East Hartford,
After the maintenance or inspection 31, 2018. CT 06118; phone: 800–565–0140; email:
program has been revised as required by Michael Kaszycki, help24@pw.utc.com; internet: http://
paragraph (g) of this AD, no alternative Acting Director, System Oversight Division, fleetcare.pw.utc.com. You may view this
actions (e.g., inspections) or intervals, may be Aircraft Certification Service. service information at the FAA, Engine
used unless the actions or intervals are [FR Doc. 2018–12233 Filed 6–8–18; 8:45 am] and Propeller Standards Branch, 1200
approved as an alternative method of BILLING CODE 4910–13–P District Avenue, Burlington, MA 01803.
compliance (AMOC) in accordance with the For information on the availability of
procedures specified in paragraph (i)(1) of this material at the FAA, call 781–238–
this AD. DEPARTMENT OF TRANSPORTATION 7759.
(i) Other FAA AD Provisions Federal Aviation Administration Examining the AD Docket
The following provisions also apply to this You may examine the AD docket on
AD: 14 CFR Part 39 the internet at http://
(1) Alternative Methods of Compliance www.regulations.gov by searching for
[Docket No. FAA–2018–0404; Product
(AMOCs): The Manager, International Identifier 2018–NE–15–AD] and locating Docket No. FAA–2018–
Section, Transport Standards Branch, FAA, 0404; or in person at Docket Operations
has the authority to approve AMOCs for this RIN 2120–AA64 between 9 a.m. and 5 p.m., Monday
AD, if requested using the procedures found through Friday, except Federal holidays.
in 14 CFR 39.19. In accordance with 14 CFR Airworthiness Directives; International
The AD docket contains this NPRM, the
39.19, send your request to your principal Aero Engines (IAE) Turbofan engines
regulatory evaluation, any comments
inspector or local Flight Standards District AGENCY: Federal Aviation received, and other information. The
Office, as appropriate. If sending information Administration (FAA), DOT. street address for Docket Operations
directly to the International Section, send it (phone: 800–647–5527) is listed above.
ACTION: Notice of proposed rulemaking
to the attention of the person identified in Comments will be available in the AD
paragraph (j)(2) of this AD. Information may
(NPRM).
docket shortly after receipt.
be emailed to: 9-ANM-116-AMOC- SUMMARY: We propose to adopt a new FOR FURTHER INFORMATION CONTACT:
REQUESTS@faa.gov. Before using any airworthiness directive (AD) for all
approved AMOC, notify your appropriate Kevin M. Clark, Aerospace Engineer,
International Aero Engines (IAE) ECO Branch, FAA, 1200 District
principal inspector, or lacking a principal PW1133G–JM, PW1133GA–JM,
inspector, the manager of the local flight Avenue, Burlington, MA 01803; phone:
PW1130G–JM, PW1127G–JM, 781–238–7088; fax: 781–238–7199;
standards district office/certificate holding
PW1127GA–JM, PW1127G1–JM, email: kevin.m.clark@faa.gov.
district office.
PW1124G–JM, PW1124G1–JM, and SUPPLEMENTARY INFORMATION:
(2) Contacting the Manufacturer: For any
requirement in this AD to obtain corrective
PW1122G–JM turbofan engines. This
proposed AD was prompted by reports Comments Invited
actions from a manufacturer, the action must
be accomplished using a method approved of in-flight engine shutdowns and We invite you to send any written
by the Manager, International Section, aborted take-offs as the result of certain relevant data, views, or arguments about
Transport Standards Branch, FAA; or the parts affecting the durability of the rear this proposal. Send your comments to
European Aviation Safety Agency (EASA); or high-pressure compressor (HPC) rotor an address listed under the ADDRESSES
Airbus’s EASA Design Organization hub knife edge seal. This proposed AD section. Include ‘‘Docket No. FAA–
Approval (DOA). If approved by the DOA, would require replacing the diffuser 2018–0404; Product Identifier 2018–
the approval must include the DOA- case air seal assembly, the high-pressure NE–15–AD’’ at the beginning of your
authorized signature. turbine (HPT) 2nd-stage vane assembly, comments. We specifically invite
and the HPT 2nd-stage borescope stator comments on the overall regulatory,
(j) Related Information
vane assembly with parts eligible for economic, environmental, and energy
(1) Refer to Mandatory Continuing installation. We are proposing this AD aspects of this NPRM. We will consider
Airworthiness Information (MCAI) EASA AD to address the unsafe condition on these all comments received by the closing
2018–0004, dated January 9, 2018, for related products. date and may amend this NPRM
information. This MCAI may be found in the
DATES: We must receive comments on because of those comments.
AD docket on the internet at http://
this proposed AD by July 26, 2018. We will post all comments we
www.regulations.gov by searching for and
ADDRESSES: You may send comments, receive, without change, to http://
locating Docket No. FAA–2018–0508.
using the procedures found in 14 CFR www.regulations.gov, including any
(2) For more information about this AD,
contact Kathleen Arrigotti, Aerospace 11.43 and 11.45, by any of the following personal information you provide. We
Engineer, International Section, Transport methods: will also post a report summarizing each
Standards Branch, FAA, 2200 South 216th • Federal eRulemaking Portal: Go to substantive verbal contact we receive
St., Des Moines, WA 98198; telephone and http://www.regulations.gov. Follow the about this NPRM.
fax 206–231–3218. instructions for submitting comments. Discussion
(3) For service information identified in • Fax: 202–493–2251.
this AD, contact Airbus SAS, Airworthiness • Mail: U.S. Department of In-flight engine shutdowns and
Office—EAL, 1 Rond Point Maurice Bellonte, Transportation, Docket Operations, M– aborted take-offs have occurred on
31707 Blagnac Cedex, France; telephone +33 30, West Building Ground Floor, Room certain IAE turbofan engines as the
daltland on DSKBBV9HB2PROD with PROPOSALS
5 61 93 36 96; fax +33 5 61 93 45 80; email W12–140, 1200 New Jersey Avenue SE, result of a failed knife edge seal on
continued-airworthiness.a350@airbus.com; Washington, DC 20590. engine serial numbers (ESNs) P770450
internet http://www.airbus.com. You may • Hand Delivery: Deliver to Mail through P770614. In response to these
view this service information at the FAA, address above between 9 a.m. and 5 events, the European Aviation Safety
Transport Standards Branch, 2200 South p.m., Monday through Friday, except Agency published AD 2018–0041R1,
216th St., Des Moines, WA. For information Federal holidays. dated March 23, 2018 (corrected on
on the availability of this material at the For service information identified in April 4, 2018). Additionally, the FAA
FAA, call 206–231–3195. this NPRM, contact International Aero published AD 2018–04–01 (83 FR 6791,
VerDate Sep<11>2014 17:25 Jun 08, 2018 Jkt 244001 PO 00000 Frm 00023 Fmt 4702 Sfmt 4702 E:\FR\FM\11JNP1.SGM 11JNP1](https://thefederalregister.org/doc/83_FR_26999/page/1.svg)
![26888 Federal Register / Vol. 83, No. 112 / Monday, June 11, 2018 / Proposed Rules
February 15, 2018), for all Airbus Model 00–0099–00A–930A–D, Issue No. 002, assembly, P/N 30G7572; and the HPT
A320–271N, A321–271N, and A321– dated March 15, 2018. The ASB 2nd-stage borescope stator vane
272N airplanes. Both ADs describe describes procedures for removing assembly, P/N 30G7672, with parts
procedures to de-pair affected airplanes production modifications to the diffuser eligible for installation.
and to discontinue extended operations case air seal assembly, HPT 2nd-stage
(ETOPS) for airplanes with at least one vane assembly, and the HPT 2nd-stage Interim Action
affected engine. borescope stator vane assembly,
An analysis by the manufacturer of We consider this proposed AD
beginning with ESN P770450, which
these engine failures has shown that interim action. The manufacturer is
resulted in an unanticipated increase in
production modifications to the diffuser stress at the rear HPC rotor hub knife currently developing a modification that
case air seal assembly and the 2nd-stage edge seal. will address the unsafe condition
HPT vane assemblies, beginning with identified in this AD. Once this
ESN P770450, negatively affected the FAA’s Determination modification is developed, approved,
durability of the rear HPC rotor hub We are proposing this AD because we and available, we might consider
knife edge seal. The modifications evaluated all the relevant information additional rulemaking.
caused the knife edge seal on the rear and determined the unsafe condition
described previously is likely to exist or Costs of Compliance
HPC rotor hub to experience high-cycle
fatigue and failure. This condition, if develop in other products of the same We estimate that this proposed AD
not addressed, could result in failure of type design. affects 16 engines installed on airplanes
one or more engines, loss of thrust of U.S. registry.
Proposed AD Requirements
control, and loss of the airplane.
This proposed AD would require We estimate the following costs to
Related Service Information removing from service and replacing the comply with this proposed AD:
We reviewed Pratt & Whitney Alert diffuser case air seal assembly, P/N
Service Bulletin (ASB) PW1000G–C–72– 30G4993–01; the HPT 2nd-stage vane
ESTIMATED COSTS
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
Removing modifications .................................. 0 work-hours × $85 per hour = $0 ................. $44,000 $44,000 $704,000
Authority for This Rulemaking associated appliances to the Manager, The Proposed Amendment
Title 49 of the United States Code Engine and Propeller Standards Branch,
Policy and Innovation Division. Accordingly, under the authority
specifies the FAA’s authority to issue delegated to me by the Administrator,
rules on aviation safety. Subtitle I, Regulatory Findings the FAA proposes to amend 14 CFR part
section 106, describes the authority of 39 as follows:
the FAA Administrator. Subtitle VII: We determined that this proposed AD
Aviation Programs, describes in more would not have federalism implications
PART 39—AIRWORTHINESS
detail the scope of the Agency’s under Executive Order 13132. This
DIRECTIVES
authority. proposed AD would not have a
We are issuing this rulemaking under substantial direct effect on the States, on
the relationship between the national ■ 1. The authority citation for part 39
the authority described in Subtitle VII, continues to read as follows:
Part A, Subpart III, Section 44701: government and the States, or on the
‘‘General requirements.’’ Under that distribution of power and Authority: 49 U.S.C. 106(g), 40113, 44701.
section, Congress charges the FAA with responsibilities among the various
§ 39.13 [Amended]
promoting safe flight of civil aircraft in levels of government.
air commerce by prescribing regulations For the reasons discussed above, I ■ 2. The FAA amends § 39.13 by adding
for practices, methods, and procedures certify this proposed regulation: the following new airworthiness
the Administrator finds necessary for (1) Is not a ‘‘significant regulatory directive (AD):
safety in air commerce. This regulation action’’ under Executive Order 12866, International Aero Engines: Docket No.
is within the scope of that authority (2) Is not a ‘‘significant rule’’ under FAA–2018–0404; Product Identifier
because it addresses an unsafe condition the DOT Regulatory Policies and 2018–NE–15–AD.
that is likely to exist or develop on Procedures (44 FR 11034, February 26, (a) Comments Due Date
products identified in this rulemaking 1979),
We must receive comments by July 26,
action. (3) Will not affect intrastate aviation 2018.
This AD is issued in accordance with in Alaska, and
authority delegated by the Executive (4) Will not have a significant (b) Affected ADs
Director, Aircraft Certification Service, economic impact, positive or negative, None.
daltland on DSKBBV9HB2PROD with PROPOSALS
as authorized by FAA Order 8000.51C. on a substantial number of small entities (c) Applicability
In accordance with that order, issuance under the criteria of the Regulatory
of ADs is normally a function of the This AD applies to International Aero
Flexibility Act.
Engines (IAE) PW1133G–JM, PW1133GA–JM,
Compliance and Airworthiness PW1130G–JM, PW1127G–JM, PW1127GA–
Division, but during this transition List of Subjects in 14 CFR Part 39
JM, PW1127G1–JM, PW1124G–JM,
period, the Executive Director has Air transportation, Aircraft, Aviation PW1124G1–JM, and PW1122G–JM turbofan
delegated the authority to issue ADs safety, Incorporation by reference, engines with engine serial numbers (ESNs)
applicable to engines, propellers, and Safety. P770450 through P770614.
VerDate Sep<11>2014 17:25 Jun 08, 2018 Jkt 244001 PO 00000 Frm 00024 Fmt 4702 Sfmt 4702 E:\FR\FM\11JNP1.SGM 11JNP1](https://thefederalregister.org/doc/83_FR_26999/page/2.svg)
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(d) Subject (2) For service information identified in comments through the internet at http://
Joint Aircraft System Component (JASC) this AD, contact International Aero Engines, www.regulations.gov.
Code 7230, Turbine Engine Compressor 400 Main Street, East Hartford, CT 06118; FAA Order 7400.11B, Airspace
phone: 800–565–0140; email: help24@
Section. Designations and Reporting Points, and
pw.utc.com; internet: http://
(e) Unsafe Condition fleetcare.pw.utc.com. You may view this subsequent amendments can be viewed
referenced service information at the FAA, online at http://www.faa.gov/air_traffic/
This AD was prompted by reports of in-
Engine and Propeller Standards Branch, 1200 publications/. For further information,
flight engine shutdowns and aborted take-offs
that were the result of a failed knife edge seal District Avenue, Burlington, MA 01803. For you can contact the Airspace Policy
on ESNs P770450 through P770614. We are information on the availability of this Group, Federal Aviation
issuing this AD to prevent failure of the rear material at the FAA, call 781–238–7759. Administration, 800 Independence
high-pressure compressor rotor hub knife Issued in Burlington, MA, on June 6, 2018. Avenue SW, Washington, DC 20591;
edge seal. The unsafe condition, if not Robert J. Ganley, telephone: (202) 267–8783. The Order is
addressed, could result in failure of one or also available for inspection at the
Manager, Engine and Propeller Standards
more engines, loss of thrust control, and loss National Archives and Records
Branch, Aircraft Certification Service.
of the airplane. Administration (NARA). For
[FR Doc. 2018–12452 Filed 6–8–18; 8:45 am]
(f) Compliance information on the availability of FAA
BILLING CODE 4910–13–P
Comply with this AD within the Order 7400.11B at NARA, call (202)
compliance times specified, unless already 741–6030, or go to https://
done. DEPARTMENT OF TRANSPORTATION www.archives.gov/federal-register/cfr/
ibr-locations.html.
(g) Required Actions
Federal Aviation Administration FAA Order 7400.11, Airspace
At the next engine shop visit after the Designations and Reporting Points, is
effective date of this AD, do the following:
14 CFR Part 71 published yearly and effective on
(1) Remove from service the diffuser case
air seal assembly, part number (P/N) September 15.
[Docket No. FAA–2017–1031; Airspace
30G4993–01, and replace with a part eligible Docket No. 17–ANM–21] FOR FURTHER INFORMATION CONTACT:
for installation. Richard Farnsworth, Federal Aviation
(2) Remove from service the high-pressure RIN 2120–AA66 Administration, Operations Support
turbine (HPT) 2nd-stage vane assembly, P/N Group, Western Service Center, 2200 S
30G7572, and replace with a part eligible for Proposed Establishment of Class E
216th St., Des Moines, WA 98198–6547;
installation. Airspace and Amendment of Class E
telephone (206) 213–2244.
(3) Remove from service HPT 2nd-stage Airspace; Ephrata, WA
borescope stator vane assembly, P/N SUPPLEMENTARY INFORMATION:
30G7672, and replace with a part eligible for AGENCY: Federal Aviation
Administration (FAA), DOT. Authority for This Rulemaking
installation.
ACTION: Notice of proposed rulemaking The FAA’s authority to issue rules
(h) Definition
(NPRM). regarding aviation safety is found in
For the purpose of this AD, an ‘‘engine Title 49 of the United States Code.
shop visit’’ is the induction of an engine into SUMMARY: This action proposes to Subtitle I, Section 106 describes the
the shop for maintenance involving the establish Class E airspace extending
separation of pairs of major mating engine authority of the FAA Administrator.
upward from 700 feet above the surface, Subtitle VII, Aviation Programs,
flanges (lettered flanges). The separation of and modify Class E surface area airspace
engine flanges solely for the purpose of describes in more detail the scope of the
transportation of the engine without
at Ephrata Municipal Airport, Ephrata, agency’s authority. This rulemaking is
subsequent engine maintenance does not WA. This action also proposes to update promulgated under the authority
constitute an engine shop visit. the geographic coordinates of the airport described in Subtitle VII, Part A,
in the associated Class E airspace areas Subpart I, Section 40103. Under that
(i) Alternative Methods of Compliance to match the FAA’s aeronautical
(AMOCs) section, the FAA is charged with
database. These changes are necessary prescribing regulations to assign the use
(1) The Manager, ECO Branch, FAA, has to accommodate airspace redesign for
the authority to approve AMOCs for this AD, of airspace necessary to ensure the
the safety and management of safety of aircraft and the efficient use of
if requested using the procedures found in 14
CFR 39.19. In accordance with 14 CFR 39.19,
instrument flight rules (IFR) operations airspace. This regulation is within the
send your request to your principal inspector within the National Airspace System. scope of that authority as it would
or local Flight Standards District Office, as Also, an editorial change would be establish and amend Class E airspace at
appropriate. If sending information directly made to the Class E surface airspace Ephrata Municipal Airport, Ephrata,
to the manager of the certification office, legal description replacing ‘‘Airport/ WA, to support standard instrument
send it to the attention of the person Facility Directory’’ with the term ‘‘Chart approach procedures for IFR operations
identified in paragraph (j)(1) of this AD. You Supplement’’.
may email your request to: ANE-AD- at the airport.
DATES: Comments must be received on
AMOC@faa.gov. Comments Invited
(2) Before using any approved AMOC,
or before July 26, 2018.
notify your appropriate principal inspector, ADDRESSES: Send comments on this Interested parties are invited to
or lacking a principal inspector, the manager proposal to the U.S. Department of participate in this proposed rulemaking
of the local flight standards district office/ Transportation, Docket Operations, 1200 by submitting such written data, views,
daltland on DSKBBV9HB2PROD with PROPOSALS
certificate holding district office. New Jersey Avenue SE, West Building or arguments, as they may desire.
(j) Related Information Ground Floor, Room W12–140, Comments that provide the factual basis
Washington, DC 20590; telephone: 1– supporting the views and suggestions
(1) For more information about this AD,
contact Kevin M. Clark, Aerospace Engineer, 800–647–5527, or (202) 366–9826. You presented are particularly helpful in
ECO Branch, FAA, 1200 District Avenue, must identify FAA Docket No. FAA– developing reasoned regulatory
Burlington, MA 01803; phone: 781–238– 2017–1031; Airspace Docket No. 17– decisions on the proposal. Comments
7088; fax: 781–238–7199; email: ANM–21, at the beginning of your are specifically invited on the overall
kevin.m.clark@faa.gov. comments. You may also submit regulatory, aeronautical, economic,
VerDate Sep<11>2014 17:25 Jun 08, 2018 Jkt 244001 PO 00000 Frm 00025 Fmt 4702 Sfmt 4702 E:\FR\FM\11JNP1.SGM 11JNP1](https://thefederalregister.org/doc/83_FR_26999/page/3.svg)
Document Created: 2018-11-02 11:58:07
Document Modified: 2018-11-02 11:58:07
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Proposed Rules | |
| Action | Notice of proposed rulemaking (NPRM). | |
| Dates | We must receive comments on this proposed AD by July 26, 2018. | |
| 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] | |
| FR Citation | 83 FR 26887 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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