81_FR_65449 81 FR 65265 - Airworthiness Directives; International Aero Engines AG Turbofan Engines

81 FR 65265 - Airworthiness Directives; International Aero Engines AG Turbofan Engines

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 184 (September 22, 2016)

Page Range65265-65267
FR Document2016-22703

We are adopting a new airworthiness directive (AD) for certain International Aero Engines AG (IAE) V2500-A1 turbofan engines. This AD was prompted by a report of an uncontainment caused by a high-pressure turbine (HPT) seal release. This AD requires removing the HPT No. 4 bearing front seal seat, part numbers (P/Ns) 2A0066, 2A1998, and 2A3432, and the HPT No. 4 bearing rear seal seat, P/Ns 2A0067, 2A1999, and 2A3433, and replacing them with parts eligible for installation. This AD also requires inspecting the HPT rotor and stator assembly, and, if necessary, their replacement with parts that are eligible for installation. We are issuing this AD to prevent failure of the HPT stage 2 seals, uncontained HPT seal release, damage to the engine, and damage to the airplane.

Federal Register, Volume 81 Issue 184 (Thursday, September 22, 2016) 
[Federal Register Volume 81, Number 184 (Thursday, September 22, 2016)]
[Rules and Regulations]
[Pages 65265-65267]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-22703]



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Rules and Regulations
                                                Federal Register
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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.

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Federal Register / Vol. 81, No. 184 / Thursday, September 22, 2016 / 
Rules and Regulations

[[Page 65265]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-5392; Directorate Identifier 2016-NE-10-AD; 
Amendment 39-18654; AD 2016-19-05]
RIN 2120-AA64


Airworthiness Directives; International Aero Engines AG Turbofan 
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
International Aero Engines AG (IAE) V2500-A1 turbofan engines. This AD 
was prompted by a report of an uncontainment caused by a high-pressure 
turbine (HPT) seal release. This AD requires removing the HPT No. 4 
bearing front seal seat, part numbers (P/Ns) 2A0066, 2A1998, and 
2A3432, and the HPT No. 4 bearing rear seal seat, P/Ns 2A0067, 2A1999, 
and 2A3433, and replacing them with parts eligible for installation. 
This AD also requires inspecting the HPT rotor and stator assembly, 
and, if necessary, their replacement with parts that are eligible for 
installation. We are issuing this AD to prevent failure of the HPT 
stage 2 seals, uncontained HPT seal release, damage to the engine, and 
damage to the airplane.

DATES: This AD is effective October 27, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of October 27, 
2016.

ADDRESSES: For service information identified in this final rule, 
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 & Propeller Directorate, 1200 District Avenue, 
Burlington, MA. For information on the availability of this material at 
the FAA, call 781-238-7125. It is also available on the Internet at 
http://www.regulations.gov by searching for and locating Docket No. 
FAA-2016-5392.

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-2016-
5392; 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 AD, the regulatory evaluation, any comments received, and 
other information. The address for the Docket Office (phone: 800-647-
5527) is Document Management Facility, 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: Brian Kierstead, Aerospace Engineer, 
Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 
District Avenue, Burlington, MA 01803; phone: 781-238-7772; fax: 781-
238-7199; email: [email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to certain IAE V2500-A1 
turbofan engines. The NPRM published in the Federal Register on April 
13, 2016 (81 FR 21768). The NPRM was prompted by a report of an 
uncontainment caused by a HPT seal release. The NPRM proposed to 
require removing from service the HPT No. 4 bearing front seal seat, P/
Ns 2A0066, 2A1998, and 2A3432, and the HPT No. 4 bearing rear seal 
seat, P/Ns 2A0067, 2A1999, and 2A3433, and replacement with parts 
eligible for installation. This AD would also require inspecting the 
HPT rotor and stator assembly, and, if necessary, their replacement 
with parts that are eligible for installation. We are issuing this AD 
to correct the unsafe condition on these products.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments received on the NPRM (81 
FR 21768, April 13, 2016) and the FAA's response to each comment.

Request To Allow Monitoring of Oil Consumption and Monitoring Analysis

    Air India Ltd. (AIL) commented that the fracture of the HPT stage 2 
seal is a known problem with the type design. AIL does not agree that 
the root cause of the failure is clogged No. 4 bearing seal seats. AIL 
finds that increases in oil consumption and/or vibration signature are 
precursors to failure of the HPT stage 2 seal. We interpret AIL's 
comment as a request to allow monitoring of oil consumption rate and 
vibration signature analysis instead of the requirements of this AD.
    We disagree. We disagree with AIL's analysis of the unsafe 
condition because although other failure modes leading to fracture of 
the HPT stage 2 seal exist, the uncontained part release noted in the 
NPRM (81 FR 21768, April 13, 2016) was caused by blockage of the No. 4 
bearing seal seat's anti-weep circuit. We disagree with allowing oil 
consumption monitoring and vibration signature analysis because they do 
not provide an acceptable level of safety for engines with seal seats 
processed using methods susceptible to oil blockage. We did not change 
this AD.

Request To Delay Compliance

    AIL commented that we should delay compliance to this AD until 
December 31, 2017. This additional time to comply with this AD would 
allow for minimal disruption to its fleet operations. AIL indicated 
that fleet safety would be maintained through engine oil consumption 
monitoring and vibration signature analysis.
    We disagree. As noted in our previous comment response, oil 
consumption monitoring and vibration signature analysis do not provide 
an acceptable level of safety for engines with seal seats processed 
using methods susceptible to oil blockage. We did not change this AD.

[[Page 65266]]

Request To Revise Applicability

    AIL commented that the applicability of this AD should not be 
limited to the IAE V2500-A1 fleet.
    We disagree. The applicability of this AD is limited to the IAE 
V2500-A1 engines with affected serial numbers because this population 
of engines has been identified as having been processed using methods 
that could lead to failure of the HPT stage 2 seals. We did not change 
this AD.

Request To Include End Date for Compliance

    IAE and Airbus commented that we should include an end date of 
December 31, 2016, for compliance with this AD.
    We disagree. Our analysis of the unsafe condition determined that 
blockage of the No. 4 bearing seal seat anti-weep grooves is a function 
of engine cycles rather than time in service. We therefore did not base 
compliance on a calendar date. We did not change this AD.

Request To Require Oil Monitoring and Turbine Case Inspection

    IAE and Airbus commented that not mandating oil monitoring and 
inspection of the turbine case weep-hole may increase risk to operators 
if they follow only the requirements of this AD. IAE indicated that 
this AD should match the compliance requirements of IAE SB V2500-ENG-
72-0670, dated March 14, 2016.
    We disagree. We find that the actions required by this AD 
adequately address the unsafe condition represented by the possibility 
of failure of the HPT stage 2 seals while not imposing unnecessary 
burdens on operators. We did not change this AD.

Revision to Compliance

    We revised the compliance section to allow installed No. 4 bearing 
front and rear seal seats to be returned to service following removal 
and refurbishment.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this AD as proposed except for minor editorial changes. We have 
determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM (81 FR 21768, April 13, 2016) for correcting the unsafe condition; 
and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM (81 FR 21768, April 13, 2016).

Related Service Information Under 1 CFR Part 51

    We reviewed IAE Non-Modification Service Bulletin (NMSB) V2500-ENG-
72-0670, dated March 14, 2016. The NMSB identifies affected engines and 
provides guidance for replacing the No. 4 bearing front and rear seal 
seats and for inspecting the HPT rotor and stator assembly. 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

    We estimate that this AD affects 0 engines installed on airplanes 
of U.S. registry. We estimate that it will take about 10 hours to 
perform the seal seat replacement. The average labor rate is $85 per 
hour. We also estimate the cost of No. 4 bearing front and rear seal 
seats to be $13,562. Based on these figures, we estimate the cost of 
this AD on U.S. operators to be $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.

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) Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska to the extent 
that it justifies making a regulatory distinction, 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.

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):

2016-19-05 International Aero Engines AG: Amendment 39-18654; Docket 
No. FAA-2016-5392; Directorate Identifier 2016-NE-10-AD.

(a) Effective Date

    This AD is effective October 27, 2016.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to International Aero Engines AG (IAE) V2500-A1 
turbofan engines with serial numbers listed under Planning 
Information, Effectivity Data in IAE Non-Modification Service 
Bulletin (NMSB) V2500-ENG-72-0670, dated March 14, 2016.

(d) Unsafe Condition

    This AD was prompted by a report of an uncontainment caused by a 
high-pressure turbine (HPT) seal release. We are issuing this AD to 
prevent failure of the HPT stage 2 seal, uncontained HPT seal 
release, damage to the engine, and damage to the airplane.

(e) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.
    (1) Prior to accumulating 500 cycles in service after the 
effective date of this AD,
    (i) Remove the No. 4 bearing front seal seat, part numbers (P/
Ns) 2A0066, 2A1998, 2A3432; and the No. 4 bearing rear seal seat, P/
Ns 2A0067, 2A1999, 2A3433, and replace with parts eligible for 
installation.
    (ii) Inspect the HPT rotor and stator assembly. Use the 
Accomplishment

[[Page 65267]]

Instructions, Part C, paragraph 1.B. of IAE NMSB V2500-ENG-72-0670, 
dated March 14, 2016 to perform the inspection.
    (2) For any parts that fail the inspection required by paragraph 
(e)(1)(ii) of this AD, before further flight, remove and replace 
with parts eligible for installation.

(f) Alternative Methods of Compliance (AMOCs)

    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: [email protected].

(g) Related Information

    For more information about this AD, contact Brian Kierstead, 
Aerospace Engineer, Engine Certification Office, FAA, Engine & 
Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; 
phone: 781-238-7772; fax: 781-238-7199; email: 
[email protected].

(h) 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) International Aero Engines AG (IAE) Non-Modification Service 
Bulletin V2500-ENG-72-0670, dated March 14, 2016.
    (ii) Reserved.
    (3) For IAE 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.
    (4) 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.
    (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 September 15, 2016.
Ann C. Mollica,
Acting Manager, Engine & Propeller Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-22703 Filed 9-21-16; 8:45 am]
BILLING CODE 4910-13-P

65265 Rules and Regulations Federal Register Vol. 81, No. 184 Thursday, September 22, 2016 This section of the FEDERAL REGISTER pw.utc.com; Internet: http:// to correct the unsafe condition on these contains regulatory documents having general fleetcare.pw.utc.com. You may view this products. applicability and legal effect, most of which service information at the FAA, Engine are keyed to and codified in the Code of & Propeller Directorate, 1200 District Comments Federal Regulations, which is published under Avenue, Burlington, MA. For 50 titles pursuant to 44 U.S.C. 1510. We gave the public the opportunity to information on the availability of this participate in developing this AD. The The Code of Federal Regulations is sold by material at the FAA, call 781–238–7125. following presents the comments the Superintendent of Documents. Prices of It is also available on the Internet at received on the NPRM (81 FR 21768, new books are listed in the first FEDERAL http://www.regulations.gov by searching April 13, 2016) and the FAA’s response REGISTER issue of each week. for and locating Docket No. FAA–2016– to each comment. 5392. Request To Allow Monitoring of Oil DEPARTMENT OF TRANSPORTATION Examining the AD Docket Consumption and Monitoring Analysis You may examine the AD docket on Federal Aviation Administration Air India Ltd. (AIL) commented that the Internet at http:// www.regulations.gov by searching for the fracture of the HPT stage 2 seal is 14 CFR Part 39 a known problem with the type design. and locating Docket No. FAA–2016– [Docket No. FAA–2016–5392; Directorate 5392; or in person at the Docket AIL does not agree that the root cause Identifier 2016–NE–10–AD; Amendment 39– Management Facility between 9 a.m. of the failure is clogged No. 4 bearing 18654; AD 2016–19–05] and 5 p.m., Monday through Friday, seal seats. AIL finds that increases in oil except Federal holidays. The AD docket consumption and/or vibration signature RIN 2120–AA64 contains this AD, the regulatory are precursors to failure of the HPT Airworthiness Directives; International evaluation, any comments received, and stage 2 seal. We interpret AIL’s Aero Engines AG Turbofan Engines other information. The address for the comment as a request to allow Docket Office (phone: 800–647–5527) is monitoring of oil consumption rate and AGENCY: Federal Aviation Document Management Facility, U.S. vibration signature analysis instead of Administration (FAA), DOT. Department of Transportation, Docket the requirements of this AD. ACTION: Final rule. Operations, M–30, West Building We disagree. We disagree with AIL’s Ground Floor, Room W12–140, 1200 analysis of the unsafe condition because SUMMARY: We are adopting a new New Jersey Avenue SE., Washington, although other failure modes leading to airworthiness directive (AD) for certain DC 20590. fracture of the HPT stage 2 seal exist, the International Aero Engines AG (IAE) FOR FURTHER INFORMATION CONTACT: uncontained part release noted in the V2500–A1 turbofan engines. This AD was prompted by a report of an Brian Kierstead, Aerospace Engineer, NPRM (81 FR 21768, April 13, 2016) uncontainment caused by a high- Engine Certification Office, FAA, Engine was caused by blockage of the No. 4 pressure turbine (HPT) seal release. This & Propeller Directorate, 1200 District bearing seal seat’s anti-weep circuit. We AD requires removing the HPT No. 4 Avenue, Burlington, MA 01803; phone: disagree with allowing oil consumption bearing front seal seat, part numbers 781–238–7772; fax: 781–238–7199; monitoring and vibration signature (P/Ns) 2A0066, 2A1998, and 2A3432, email: brian.kierstead@faa.gov. analysis because they do not provide an and the HPT No. 4 bearing rear seal seat, acceptable level of safety for engines SUPPLEMENTARY INFORMATION: with seal seats processed using methods P/Ns 2A0067, 2A1999, and 2A3433, and replacing them with parts eligible for Discussion susceptible to oil blockage. We did not installation. This AD also requires change this AD. We issued a notice of proposed inspecting the HPT rotor and stator rulemaking (NPRM) to amend 14 CFR Request To Delay Compliance assembly, and, if necessary, their part 39 by adding an AD that would replacement with parts that are eligible AIL commented that we should delay apply to certain IAE V2500–A1 turbofan for installation. We are issuing this AD engines. The NPRM published in the compliance to this AD until December to prevent failure of the HPT stage 2 Federal Register on April 13, 2016 (81 31, 2017. This additional time to seals, uncontained HPT seal release, FR 21768). The NPRM was prompted by comply with this AD would allow for damage to the engine, and damage to the a report of an uncontainment caused by minimal disruption to its fleet airplane. a HPT seal release. The NPRM proposed operations. AIL indicated that fleet DATES: This AD is effective October 27, to require removing from service the safety would be maintained through 2016. HPT No. 4 bearing front seal seat, P/Ns engine oil consumption monitoring and The Director of the Federal Register 2A0066, 2A1998, and 2A3432, and the vibration signature analysis. approved the incorporation by reference HPT No. 4 bearing rear seal seat, P/Ns We disagree. As noted in our previous of a certain publication listed in this AD 2A0067, 2A1999, and 2A3433, and comment response, oil consumption ehiers on DSK5VPTVN1PROD with RULES as of October 27, 2016. replacement with parts eligible for monitoring and vibration signature ADDRESSES: For service information installation. This AD would also require analysis do not provide an acceptable identified in this final rule, contact inspecting the HPT rotor and stator level of safety for engines with seal seats International Aero Engines AG, 400 assembly, and, if necessary, their processed using methods susceptible to Main Street, East Hartford, CT 06118; replacement with parts that are eligible oil blockage. We did not change this phone: 800–565–0140; email: help24@ for installation. We are issuing this AD AD. VerDate Sep<11>2014 15:00 Sep 21, 2016 Jkt 238001 PO 00000 Frm 00001 Fmt 4700 Sfmt 4700 E:\FR\FM\22SER1.SGM 22SER1

65266 Federal Register / Vol. 81, No. 184 / Thursday, September 22, 2016 / Rules and Regulations Request To Revise Applicability Related Service Information Under 1 (2) Is not a ‘‘significant rule’’ under AIL commented that the applicability CFR Part 51 DOT Regulatory Policies and Procedures of this AD should not be limited to the (44 FR 11034, February 26, 1979), We reviewed IAE Non-Modification (3) Will not affect intrastate aviation IAE V2500–A1 fleet. Service Bulletin (NMSB) V2500–ENG– in Alaska to the extent that it justifies We disagree. The applicability of this 72–0670, dated March 14, 2016. The making a regulatory distinction, and AD is limited to the IAE V2500–A1 NMSB identifies affected engines and (4) Will not have a significant engines with affected serial numbers provides guidance for replacing the No. economic impact, positive or negative, because this population of engines has 4 bearing front and rear seal seats and on a substantial number of small entities been identified as having been for inspecting the HPT rotor and stator under the criteria of the Regulatory processed using methods that could assembly. This service information is Flexibility Act. lead to failure of the HPT stage 2 seals. reasonably available because the We did not change this AD. interested parties have access to it List of Subjects in 14 CFR Part 39 Request To Include End Date for through their normal course of business Air transportation, Aircraft, Aviation Compliance or by the means identified in the safety, Incorporation by reference, ADDRESSES section. Safety. IAE and Airbus commented that we should include an end date of December Costs of Compliance Adoption of the Amendment 31, 2016, for compliance with this AD. We estimate that this AD affects 0 Accordingly, under the authority We disagree. Our analysis of the engines installed on airplanes of U.S. delegated to me by the Administrator, unsafe condition determined that registry. We estimate that it will take the FAA amends 14 CFR part 39 as blockage of the No. 4 bearing seal seat about 10 hours to perform the seal seat follows: anti-weep grooves is a function of replacement. The average labor rate is engine cycles rather than time in PART 39—AIRWORTHINESS $85 per hour. We also estimate the cost service. We therefore did not base DIRECTIVES of No. 4 bearing front and rear seal seats compliance on a calendar date. We did to be $13,562. Based on these figures, ■ 1. The authority citation for part 39 not change this AD. we estimate the cost of this AD on U.S. continues to read as follows: Request To Require Oil Monitoring and operators to be $0. Authority: 49 U.S.C. 106(g), 40113, 44701. Turbine Case Inspection Authority for This Rulemaking § 39.13 [Amended] IAE and Airbus commented that not Title 49 of the United States Code mandating oil monitoring and ■ 2. The FAA amends § 39.13 by adding specifies the FAA’s authority to issue the following new airworthiness inspection of the turbine case weep-hole rules on aviation safety. Subtitle I, may increase risk to operators if they directive (AD): section 106, describes the authority of follow only the requirements of this AD. the FAA Administrator. Subtitle VII: 2016–19–05 International Aero Engines IAE indicated that this AD should AG: Amendment 39–18654; Docket No. Aviation Programs, describes in more FAA–2016–5392; Directorate Identifier match the compliance requirements of detail the scope of the Agency’s IAE SB V2500–ENG–72–0670, dated 2016–NE–10–AD. authority. March 14, 2016. (a) Effective Date We are issuing this rulemaking under We disagree. We find that the actions This AD is effective October 27, 2016. the authority described in Subtitle VII, required by this AD adequately address Part A, Subpart III, Section 44701: (b) Affected ADs the unsafe condition represented by the ‘‘General requirements.’’ Under that None. possibility of failure of the HPT stage 2 section, Congress charges the FAA with seals while not imposing unnecessary (c) Applicability promoting safe flight of civil aircraft in burdens on operators. We did not This AD applies to International Aero air commerce by prescribing regulations change this AD. Engines AG (IAE) V2500–A1 turbofan for practices, methods, and procedures engines with serial numbers listed under Revision to Compliance the Administrator finds necessary for Planning Information, Effectivity Data in IAE We revised the compliance section to safety in air commerce. This regulation Non-Modification Service Bulletin (NMSB) allow installed No. 4 bearing front and is within the scope of that authority V2500–ENG–72–0670, dated March 14, 2016. rear seal seats to be returned to service because it addresses an unsafe condition (d) Unsafe Condition following removal and refurbishment. that is likely to exist or develop on products identified in this rulemaking This AD was prompted by a report of an Conclusion action. uncontainment caused by a high-pressure turbine (HPT) seal release. We are issuing We reviewed the relevant data, Regulatory Findings this AD to prevent failure of the HPT stage considered the comments received, and 2 seal, uncontained HPT seal release, damage determined that air safety and the This AD will not have federalism to the engine, and damage to the airplane. public interest require adopting this AD implications under Executive Order (e) Compliance as proposed except for minor editorial 13132. This AD will not have a substantial direct effect on the States, on Comply with this AD within the changes. We have determined that these compliance times specified, unless already minor changes: the relationship between the national done. • Are consistent with the intent that government and the States, or on the (1) Prior to accumulating 500 cycles in was proposed in the NPRM (81 FR distribution of power and service after the effective date of this AD, ehiers on DSK5VPTVN1PROD with RULES 21768, April 13, 2016) for correcting the responsibilities among the various (i) Remove the No. 4 bearing front seal seat, unsafe condition; and levels of government. part numbers (P/Ns) 2A0066, 2A1998, 2A3432; and the No. 4 bearing rear seal seat, • Do not add any additional burden For the reasons discussed above, I P/Ns 2A0067, 2A1999, 2A3433, and replace upon the public than was already certify that this AD: with parts eligible for installation. proposed in the NPRM (81 FR 21768, (1) Is not a ‘‘significant regulatory (ii) Inspect the HPT rotor and stator April 13, 2016). action’’ under Executive Order 12866, assembly. Use the Accomplishment VerDate Sep<11>2014 15:00 Sep 21, 2016 Jkt 238001 PO 00000 Frm 00002 Fmt 4700 Sfmt 4700 E:\FR\FM\22SER1.SGM 22SER1

Federal Register / Vol. 81, No. 184 / Thursday, September 22, 2016 / Rules and Regulations 65267 Instructions, Part C, paragraph 1.B. of IAE DEPARTMENT OF TRANSPORTATION Hillwood Parkway, Fort Worth, TX NMSB V2500–ENG–72–0670, dated March 76177; telephone (817) 222–5711. 14, 2016 to perform the inspection. Federal Aviation Administration SUPPLEMENTARY INFORMATION: (2) For any parts that fail the inspection required by paragraph (e)(1)(ii) of this AD, 14 CFR Part 71 Authority for This Rulemaking before further flight, remove and replace with The FAA’s authority to issue rules [Docket No. FAA–2015–7487; Airspace parts eligible for installation. regarding aviation safety is found in Docket No. 15–ACE–7] (f) Alternative Methods of Compliance Title 49 of the United States Code. (AMOCs) Amendment of Class D and E Airspace Subtitle I, Section 106 describes the and Revocation of Class E Airspace; authority of the FAA Administrator. The Manager, Engine Certification Office, Subtitle VII, Aviation Programs, FAA, may approve AMOCs for this AD. Use Sioux City, IA describes in more detail the scope of the the procedures found in 14 CFR 39.19 to AGENCY: Federal Aviation agency’s authority. This rulemaking is make your request. You may email your Administration (FAA), DOT. promulgated under the authority request to: ANE-AD-AMOC@faa.gov. ACTION: Final rule. described in Subtitle VII, Part A, (g) Related Information Subpart I, Section 40103. Under that SUMMARY: This action modifies the Class section, the FAA is charged with For more information about this AD, D and E airspace areas at Sioux prescribing regulations to assign the use contact Brian Kierstead, Aerospace Engineer, Gateway/Col. Bud Day Field, Sioux of airspace necessary to ensure the Engine Certification Office, FAA, Engine & City, IA, due to the decommissioning of safety of aircraft and the efficient use of Propeller Directorate, 1200 District Avenue, the Gateway non-directional radio airspace. This regulation is within the Burlington, MA 01803; phone: 781–238– beacon (NDB) and cancellation of the scope of that authority as it amends 7772; fax: 781–238–7199; email: brian.kierstead@faa.gov. NDB approaches at the airport. The Class D and E airspace at Sioux Class E airspace area designated as an Gateway/Col. Bud Day Field, Sioux (h) Material Incorporated by Reference extension is being removed as it is no City, IA. (1) The Director of the Federal Register longer needed. Advances in Global Positioning System (GPS) capabilities History approved the incorporation by reference (IBR) of the service information listed in this have made this action necessary for the On April 13, 2016, the FAA published paragraph under 5 U.S.C. 552(a) and 1 CFR safety and management of Instrument in the Federal Register a notice of part 51. Flight Rules (IFR) operations at the proposed rulemaking (NPRM) to modify (2) You must use this service information airport. This action also updates the Class D airspace, Class E surface area as applicable to do the actions required by geographic coordinates for Martin Field, airspace and Class E airspace extending this AD, unless the AD specifies otherwise. NE., to coincide with the FAAs upward from 700 feet above the surface (i) International Aero Engines AG (IAE) aeronautical database. at Sioux Gateway/Col. Bud Day Field, Non-Modification Service Bulletin V2500– DATES: Effective 0901 UTC, January 5, Sioux City, IA (81 FR 21772) FAA– ENG–72–0670, dated March 14, 2016. 2017. The Director of the Federal 2015–7487. The Class E airspace area (ii) Reserved. Register approves this incorporation by designated as an extension also would (3) For IAE service information identified reference action under Title 1, Code of be removed as the extension is no longer in this AD, contact International Aero Federal Regulations, part 51, subject to needed. Interested parties were invited Engines AG, 400 Main Street, East Hartford, the annual revision of FAA Order to participate in this rulemaking effort CT 06118; phone: 800–565–0140; email: 7400.11 and publication of conforming by submitting written comments on the help24@pw.utc.com; Internet: http:// amendments. proposal to the FAA. One comment was fleetcare.pw.utc.com. received from Thomas Glennon, ADDRESSES: FAA Order 7400.11A, (4) You may view this service information Aeronautical Information Services, Airspace Designations and Reporting at the FAA, Engine & Propeller Directorate, citing a correction to the geographic 1200 District Avenue, Burlington, MA. For Points, and subsequent amendments can coordinates for Martin Field, South information on the availability of this be viewed online at http://www.faa.gov/ Sioux City, NE., which has been material at the FAA, call 781–238–7125. air_traffic/publications/. For further incorporated into this final rule. (5) You may view this service information information, you can contact the Class D and E airspace designations that is incorporated by reference at the Airspace Policy Group, Federal Aviation are published in paragraph 5000, 6002, National Archives and Records Administration, 800 Independence 6004, and 6005, respectively, of FAA Administration (NARA). For information on Avenue SW., Washington, DC, 20591; Order 7400.11A, dated August 3, 2016, the availability of this material at NARA, call telephone: 202–267–8783. The Order is and effective September 15, 2016, which 202–741–6030, or go to: http:// also available for inspection at the is incorporated by reference in 14 CFR www.archives.gov/federal-register/cfr/ibr- National Archives and Records 71.1. The Class D and E airspace locations.html. Administration (NARA). For designations listed in this document information on the availability of FAA will be published subsequently in the Issued in Burlington, Massachusetts, on Order 7400.11A at NARA, call 202–741– Order. September 15, 2016. 6030, or go to http://www.archives.gov/ Ann C. Mollica, federal_register/code_of_federal- Availability and Summary of Acting Manager, Engine & Propeller regulations/ibr_locations.html. Documents for Incorporation by Directorate, Aircraft Certification Service. FAA Order 7400.11, Airspace Reference [FR Doc. 2016–22703 Filed 9–21–16; 8:45 am] Designations and Reporting Points, is This document amends FAA Order ehiers on DSK5VPTVN1PROD with RULES BILLING CODE 4910–13–P published yearly and effective on 7400.11A, Airspace Designations and September 15. Reporting Points, dated August 3, 2016, FOR FURTHER INFORMATION CONTACT: and effective September 15, 2016. FAA Jeffrey Claypool, Federal Aviation Order 7400.11A is publicly available as Administration, Operations Support listed in the ADDRESSES section of this Group, Central Service Center, 10101 document. FAA Order 7400.11A lists VerDate Sep<11>2014 15:00 Sep 21, 2016 Jkt 238001 PO 00000 Frm 00003 Fmt 4700 Sfmt 4700 E:\FR\FM\22SER1.SGM 22SER1


Document Created: 2016-09-22 01:03:20
Document Modified: 2016-09-22 01:03:20
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective October 27, 2016.
ContactBrian Kierstead, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7772; fax: 781- 238-7199; email: [email protected]
FR Citation81 FR 65265 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
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