83 FR 4167 - Airworthiness Directives; Honeywell International Inc. Turbofan Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 20 (January 30, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 20 (January 30, 2018)
| Page Range | 4167-4169 | |
| FR Document | 2018-01704 |
[Federal Register Volume 83, Number 20 (Tuesday, January 30, 2018)] [Proposed Rules] [Pages 4167-4169] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-01704] ======================================================================== Proposed Rules Federal Register ________________________________________________________________________ This section of the FEDERAL REGISTER contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules. ======================================================================== Federal Register / Vol. 83, No. 20 / Tuesday, January 30, 2018 / Proposed Rules [[Page 4167]] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2017-1116; Product Identifier 2016-NE-32-AD] RIN 2120-AA64 Airworthiness Directives; Honeywell International Inc. Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to supersede Airworthiness Directive (AD) 2017-20- 06, which applies to certain Honeywell International Inc. (Honeywell) AS907-1-1A turbofan engines. AD 2017-20-06 requires a one-time inspection of the second stage low-pressure turbine (LPT2) blades and, if the blades fail the inspection, the replacement of the blades with a part eligible for installation. Since we issued AD 2017-20-06, we determined the need to clarify the Applicability and Compliance sections of AD 2017-20-06. This proposed AD would continue to require a one-time inspection of the LPT2 blades and, if the blades fail the inspection, the replacement of the blades with a part 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 March 16, 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 Honeywell International Inc., 111 S 34th Street, Phoenix, AZ 85034-2802; phone: 800-601-3099; internet: https://myaerospace.honeywell.com/wps/portal. You may view this service information at the FAA, Engine and Propeller Standards Branch, 1200 District Avenue, Burlington, MA. 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-2017- 1116; 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 NPRM, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Joseph Costa, Aerospace Engineer, Los Angeles ACO Branch, FAA, 3960 Paramount Blvd., Lakewood, CA 90712-4137; phone: 562-627-5246; fax: 562-627-5210; email: [email protected]. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ``Docket No. FAA-2017-1116; Product Identifier 2016-NE-32-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 proposed AD. Discussion We issued AD 2017-20-06, Amendment 39-19063 (82 FR 46379, October 5, 2017), (``AD 2017-20-06''), for certain Honeywell International Inc. (Honeywell) AS907-1-1A turbofan engines. AD 2017-20-06 requires a one- time inspection of the LPT2 blades and, if the blades fail the inspection, the replacement of the blades with a part eligible for installation. AD 2017-20-06 resulted from reports of loss of power due to failure of the LPT2 blade. We issued AD 2017-20-06 to prevent failure of the LPT2 blades caused by excessive blade tip shroud wear, failure of one or more new production engines with the same time-in- service, and loss of the airplane. Actions Since AD 2017-20-06 Was Issued Since we issued AD 2017-20-06, we determined the need to clarify the Applicability and Compliance sections of that AD. We received comments from operators and maintenance facilities indicating that these sections of the AD could have been misinterpreted to mean that the borescope inspections required by this AD applied to all Honeywell AS907-1-1A turbofan engines with LPT2 rotor blades, part number (P/N) 3035602-1, installed. We revised these sections to clarify that only Honeywell AS907-1-1A turbofan engines with LPT2 rotor blades, P/N 3035602-1, installed, with more than 8,000 hours since new on the effective date of this AD are affected. Related Service Information Under 1 CFR Part 51 We reviewed Honeywell Service Bulletin (SB) AS907-72-9067, Revision 1, dated March 20, 2017. This SB describes procedures for inspecting the LPT2 blades. 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. Other Related Service Information We reviewed Honeywell SB AS907-72-9067, Revision 0, dated December 12, 2016, which also describes procedures for inspecting the LPT2 blades. We also reviewed the Honeywell [[Page 4168]] Light Maintenance Manual, AS907-1-1A, 72-00-00, Section 72-05-12, dated May 25, 2016, and Section 72-55-03, dated September 27, 2011, which provide additional guidance for performing borescope inspections. 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 retain the requirements of AD 2017-20-06 to perform a one-time inspection of affected LPT2 blades and, if the blades fail the inspection, replace the blades with a part eligible for installation. This proposed AD would clarify that these requirements apply only to Honeywell AS907-1-1A turbofan engines with LPT2 rotor blades, P/N 3035602-1, installed, with more than 8,000 hours since new on the effective date of this AD. Costs of Compliance We estimate that this proposed AD affects 40 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 ---------------------------------------------------------------------------------------------------------------- Borescope inspection.................. 10 work-hours x $85 per $0 $850 $34,000 hour = $850. Report results of inspection.......... 1 work-hour x $85 per 0 85 3,400 hour = $85. ---------------------------------------------------------------------------------------------------------------- We estimate the following costs to do any necessary replacements that would be required based on the results of the inspection. We estimate that 40 engines will need this replacement. On-Condition Costs ---------------------------------------------------------------------------------------------------------------- Cost per Action Labor cost Parts cost product ---------------------------------------------------------------------------------------------------------------- Replacement of the LPT2 blade set............ 50 work-hours x $85 per hour = $50,000 $54,250 $4,250. ---------------------------------------------------------------------------------------------------------------- Paperwork Reduction Act A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB control number. The control number for the collection of information required by this proposed AD is 2120-0056. The paperwork cost associated with this proposed AD has been detailed in the Costs of Compliance section of this document and includes time for reviewing instructions, as well as completing and reviewing the collection of information. Therefore, all reporting associated with this proposed AD is mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at 800 Independence Ave. SW, Washington, DC 20591. ATTN: Information Collection Clearance Officer, AES-200. 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 have 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 that the 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: [[Page 4169]] 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 removing Airworthiness Directive (AD) 2017-20-06, Amendment 39-19063 (82 FR 46379, October 5, 2017), and adding the following new AD: Honeywell International Inc.: Docket No. FAA-2017-1116; Product Identifier 2016-NE-32-AD. (a) Comments Due Date The FAA must receive comments on this AD action by March 16, 2018. (b) Affected ADs This AD replaces AD 2017-20-06, Amendment 39-19063 (82 FR 46379, October 5, 2017). (c) Applicability This AD applies to Honeywell International Inc. (Honeywell) AS907-1-1A turbofan engines with second stage low-pressure turbine (LPT2) rotor blades, part number 3035602-1, installed, that have more than 8,000 hours since new on the effective date of this AD. (d) Subject Joint Aircraft System Component (JASC) Code 7250, Turbine Section. (e) Unsafe Condition This AD was prompted by reports of loss of power due to failure of the LPT2 blade. We are issuing this AD to prevent failure of the LPT2 blades. The unsafe condition, if not corrected, could result in failure of one or more engines and loss of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Within 200 hours time in service after the effective date of this AD, do the following: (1) Perform a one-time borescope inspection for wear of the Z gap contact area at the blade tip shroud for each of the 62 LPT2 rotor blades. Use the Accomplishment Instructions, Paragraph 3.B.(1), of Honeywell Service Bulletin (SB) AS907-72-9067, Revision 1, dated March 20, 2017, to do the inspection. (2) If the measured wear and/or fretting of any Z gap contact area is greater than 0.005 inch, replace the LPT2 rotor assembly with a part eligible for installation before further flight. (3) Using a borescope, make a clear digital image of the Z gap contact area at the blade tip shroud of the 62 LPT2 rotor blades, and do the following: (i) Identify the three Z gap contact areas with the greatest amount of wear and/or fretting. (ii) Record the blade position on the LPT2 rotor assembly and the measured wear of the three Z gap contact areas with the greatest amount of wear and/or fretting. (iii) Send the results to Honeywell at [email protected] within 30 days after completing these actions. (h) Credit for Previous Actions You may take credit for the actions required by paragraphs (g)(1) and (2) of this AD, if you performed these actions before the effective date of this AD using Honeywell SB AS907-72-9067, Revision 0, dated December 12, 2016. (i) Paperwork Reduction Act Burden Statement A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW, Washington, DC 20591, Attn: Information Collection Clearance Officer, AES-200. (j) Alternative Methods of Compliance (AMOCs) (1) The Manager, Los Angeles ACO Branch, FAA, may 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 Los Angeles ACO Branch, send it to the attention of the person identified in paragraph (k)(1) of this AD. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (k) Related Information (1) For more information about this AD, contact Joseph Costa, Aerospace Engineer, Los Angeles ACO Branch, FAA, 3960 Paramount Blvd., Lakewood, CA 90712-4137; phone: 562-627-5246; fax: 562-627- 5210; email: [email protected]. (2) For service information identified in this AD, contact Honeywell International Inc., 111 S 34th Street, Phoenix, AZ 85034- 2802; phone: 800-601-3099; internet: https://myaerospace.honeywell.com/wps/portal. Issued in Burlington, Massachusetts, on January 24, 2018. Robert J. Ganley, Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2018-01704 Filed 1-29-18; 8:45 am] BILLING CODE 4910-13-P
![4167
Proposed Rules Federal Register
Vol. 83, No. 20
Tuesday, January 30, 2018
This section of the FEDERAL REGISTER • Hand Delivery: Deliver to Mail substantive verbal contact we receive
contains notices to the public of the proposed address above between 9 a.m. and 5 about this proposed AD.
issuance of rules and regulations. The p.m., Monday through Friday, except
purpose of these notices is to give interested Discussion
Federal holidays.
persons an opportunity to participate in the We issued AD 2017–20–06,
rule making prior to the adoption of the final For service information identified in
this NPRM, contact Honeywell Amendment 39–19063 (82 FR 46379,
rules. October 5, 2017), (‘‘AD 2017–20–06’’),
International Inc., 111 S 34th Street,
Phoenix, AZ 85034–2802; phone: 800– for certain Honeywell International Inc.
601–3099; internet: https:// (Honeywell) AS907–1–1A turbofan
DEPARTMENT OF TRANSPORTATION
myaerospace.honeywell.com/wps/ engines. AD 2017–20–06 requires a one-
Federal Aviation Administration portal. You may view this service time inspection of the LPT2 blades and,
information at the FAA, Engine and if the blades fail the inspection, the
14 CFR Part 39 Propeller Standards Branch, 1200 replacement of the blades with a part
District Avenue, Burlington, MA. For eligible for installation. AD 2017–20–06
[Docket No. FAA–2017–1116; Product resulted from reports of loss of power
Identifier 2016–NE–32–AD] information on the availability of this
due to failure of the LPT2 blade. We
material at the FAA, call 781–238–7759.
RIN 2120–AA64 issued AD 2017–20–06 to prevent
Examining the AD Docket failure of the LPT2 blades caused by
Airworthiness Directives; Honeywell excessive blade tip shroud wear, failure
International Inc. Turbofan Engines You may examine the AD docket on
of one or more new production engines
the internet at http://
with the same time-in-service, and loss
AGENCY: Federal Aviation www.regulations.gov by searching for of the airplane.
Administration (FAA), DOT. and locating Docket No. FAA–2017–
ACTION: Notice of proposed rulemaking 1116; or in person at the Docket Actions Since AD 2017–20–06 Was
(NPRM). Management Facility between 9 a.m. Issued
and 5 p.m., Monday through Friday, Since we issued AD 2017–20–06, we
SUMMARY: We propose to supersede except Federal holidays. The AD docket determined the need to clarify the
Airworthiness Directive (AD) 2017–20– contains this NPRM, the regulatory Applicability and Compliance sections
06, which applies to certain Honeywell evaluation, any comments received, and of that AD. We received comments from
International Inc. (Honeywell) AS907– other information. The street address for operators and maintenance facilities
1–1A turbofan engines. AD 2017–20–06 the Docket Office (phone: 800–647– indicating that these sections of the AD
requires a one-time inspection of the 5527) is in the ADDRESSES section. could have been misinterpreted to mean
second stage low-pressure turbine Comments will be available in the AD that the borescope inspections required
(LPT2) blades and, if the blades fail the docket shortly after receipt. by this AD applied to all Honeywell
inspection, the replacement of the
FOR FURTHER INFORMATION CONTACT: AS907–1–1A turbofan engines with
blades with a part eligible for
Joseph Costa, Aerospace Engineer, Los LPT2 rotor blades, part number (P/N)
installation. Since we issued AD 2017–
Angeles ACO Branch, FAA, 3960 3035602–1, installed. We revised these
20–06, we determined the need to
Paramount Blvd., Lakewood, CA 90712– sections to clarify that only Honeywell
clarify the Applicability and
4137; phone: 562–627–5246; fax: 562– AS907–1–1A turbofan engines with
Compliance sections of AD 2017–20–06.
627–5210; email: joseph.costa@faa.gov. LPT2 rotor blades, P/N 3035602–1,
This proposed AD would continue to
SUPPLEMENTARY INFORMATION:
installed, with more than 8,000 hours
require a one-time inspection of the
since new on the effective date of this
LPT2 blades and, if the blades fail the Comments Invited AD are affected.
inspection, the replacement of the
blades with a part eligible for We invite you to send any written Related Service Information Under 1
installation. We are proposing this AD relevant data, views, or arguments about CFR Part 51
to address the unsafe condition on these this proposed AD. Send your comments We reviewed Honeywell Service
products. to an address listed under the Bulletin (SB) AS907–72–9067, Revision
DATES: We must receive comments on ADDRESSES section. Include ‘‘Docket No. 1, dated March 20, 2017. This SB
this proposed AD by March 16, 2018. FAA–2017–1116; Product Identifier describes procedures for inspecting the
ADDRESSES: You may send comments, 2016–NE–32–AD’’ at the beginning of LPT2 blades. This service information is
using the procedures found in 14 CFR your comments. We specifically invite reasonably available because the
11.43 and 11.45, by any of the following comments on the overall regulatory, interested parties have access to it
methods: economic, environmental, and energy through their normal course of business
• Federal eRulemaking Portal: Go to aspects of this NPRM. We will consider or by the means identified in the
rmajette on DSKBCKNHB2PROD with PROPOSALS
http://www.regulations.gov. Follow the all comments received by the closing ADDRESSES section.
instructions for submitting comments. date and may amend this NPRM
• Fax: 202–493–2251. because of those comments. Other Related Service Information
• Mail: U.S. Department of We will post all comments we We reviewed Honeywell SB AS907–
Transportation, Docket Operations, M– receive, without change, to http:// 72–9067, Revision 0, dated December
30, West Building Ground Floor, Room www.regulations.gov, including any 12, 2016, which also describes
W12–140, 1200 New Jersey Avenue SE, personal information you provide. We procedures for inspecting the LPT2
Washington, DC 20590. will also post a report summarizing each blades. We also reviewed the Honeywell
VerDate Sep<11>2014 15:17 Jan 29, 2018 Jkt 244001 PO 00000 Frm 00001 Fmt 4702 Sfmt 4702 E:\FR\FM\30JAP1.SGM 30JAP1](https://thefederalregister.org/doc/83_FR_4187/page/1.svg)
![Federal Register / Vol. 83, No. 20 / Tuesday, January 30, 2018 / Proposed Rules 4169
PART 39—AIRWORTHINESS (ii) Record the blade position on the LPT2 Issued in Burlington, Massachusetts, on
DIRECTIVES rotor assembly and the measured wear of the January 24, 2018.
three Z gap contact areas with the greatest Robert J. Ganley,
■ 1. The authority citation for part 39 amount of wear and/or fretting. Manager, Engine and Propeller Standards
continues to read as follows: (iii) Send the results to Honeywell at Branch, Aircraft Certification Service.
Authority: 49 U.S.C. 106(g), 40113, 44701. engine.reliability@honeywell.com within 30 [FR Doc. 2018–01704 Filed 1–29–18; 8:45 am]
days after completing these actions. BILLING CODE 4910–13–P
§ 39.13 [Amended]
(h) Credit for Previous Actions
■ 2. The FAA amends § 39.13 by
removing Airworthiness Directive (AD) You may take credit for the actions
required by paragraphs (g)(1) and (2) of this DEPARTMENT OF HOMELAND
2017–20–06, Amendment 39–19063 (82 SECURITY
FR 46379, October 5, 2017), and adding AD, if you performed these actions before the
the following new AD: effective date of this AD using Honeywell SB
Coast Guard
AS907–72–9067, Revision 0, dated December
Honeywell International Inc.: Docket No. 12, 2016.
FAA–2017–1116; Product Identifier 33 CFR Part 100
2016–NE–32–AD. (i) Paperwork Reduction Act Burden
Statement [Docket Number USCG–2017–1035]
(a) Comments Due Date
A federal agency may not conduct or RIN 1625–AA00
The FAA must receive comments on this
AD action by March 16, 2018. sponsor, and a person is not required to
respond to, nor shall a person be subject to Special Local Regulation; Atlantic
(b) Affected ADs a penalty for failure to comply with a Ocean, Miami Beach, FL
This AD replaces AD 2017–20–06, collection of information subject to the AGENCY: Coast Guard, DHS.
Amendment 39–19063 (82 FR 46379, October requirements of the Paperwork Reduction
5, 2017). ACTION: Notice of proposed rulemaking.
Act unless that collection of information
(c) Applicability displays a current valid OMB Control SUMMARY: The Coast Guard proposes to
This AD applies to Honeywell Number. The OMB Control Number for this establish a recurring special local
International Inc. (Honeywell) AS907–1–1A information collection is 2120–0056. Public regulation for navigable waters of the
turbofan engines with second stage low- reporting for this collection of information is Atlantic Ocean, east of Miami Beach, FL
pressure turbine (LPT2) rotor blades, part estimated to be approximately 5 minutes per beginning at Government Cut Inlet, for
number 3035602–1, installed, that have more response, including the time for reviewing the Miami Beach Air and Sea Show.
than 8,000 hours since new on the effective instructions, completing and reviewing the
This action is necessary to ensure the
date of this AD. collection of information. All responses to
safety of the general public, spectators,
(d) Subject this collection of information are mandatory.
vessels, and marine environment from
Comments concerning the accuracy of this
Joint Aircraft System Component (JASC) potential hazards during aerobatic
burden and suggestions for reducing the
Code 7250, Turbine Section.
burden should be directed to the FAA at: 800
maneuvers by high-speed, low-flying
(e) Unsafe Condition Independence Ave. SW, Washington, DC airplanes and high speed vessels
20591, Attn: Information Collection performing during the Miami Beach Air
This AD was prompted by reports of loss
Clearance Officer, AES–200. and Sea Show. This proposed
of power due to failure of the LPT2 blade. We
are issuing this AD to prevent failure of the rulemaking would prohibit persons and
(j) Alternative Methods of Compliance non-participant vessels from entering,
LPT2 blades. The unsafe condition, if not
(AMOCs) transiting, anchoring in, or remaining
corrected, could result in failure of one or
more engines and loss of the airplane. (1) The Manager, Los Angeles ACO Branch, within the regulated area unless
FAA, may approve AMOCs for this AD, if authorized by the Captain of the Port
(f) Compliance
requested using the procedures found in 14 Miami or a designated representative.
Comply with this AD within the CFR 39.19. In accordance with 14 CFR 39.19, We invite your comments on this
compliance times specified, unless already send your request to your principal inspector proposed rulemaking.
done. or local Flight Standards District Office, as DATES: Comments and related material
(g) Required Actions appropriate. If sending information directly
must be received by the Coast Guard on
Within 200 hours time in service after the to the manager of the Los Angeles ACO
or before March 1, 2018.
effective date of this AD, do the following: Branch, send it to the attention of the person
identified in paragraph (k)(1) of this AD. ADDRESSES: You may submit comments
(1) Perform a one-time borescope
inspection for wear of the Z gap contact area (2) Before using any approved AMOC, on the Federal eRulemaking Portal at
at the blade tip shroud for each of the 62 notify your appropriate principal inspector, http://www.regulations.gov using docket
LPT2 rotor blades. Use the Accomplishment or lacking a principal inspector, the manager number USCG–2017–1035 in the
Instructions, Paragraph 3.B.(1), of Honeywell of the local flight standards district office/ ‘‘Search’’ feature. See the ‘‘Public
Service Bulletin (SB) AS907–72–9067, certificate holding district office. Participation and Request for
Revision 1, dated March 20, 2017, to do the Comments’’ portion of the
inspection. (k) Related Information SUPPLEMENTARY INFORMATION section for
(2) If the measured wear and/or fretting of (1) For more information about this AD, further instructions on submitting
any Z gap contact area is greater than 0.005 contact Joseph Costa, Aerospace Engineer, comments.
inch, replace the LPT2 rotor assembly with Los Angeles ACO Branch, FAA, 3960
rmajette on DSKBCKNHB2PROD with PROPOSALS
a part eligible for installation before further Paramount Blvd., Lakewood, CA 90712– FOR FURTHER INFORMATION CONTACT: If
flight. you have questions about this proposed
4137; phone: 562–627–5246; fax: 562–627–
(3) Using a borescope, make a clear digital rulemaking, call or email Petty Officer
image of the Z gap contact area at the blade 5210; email: joseph.costa@faa.gov.
(2) For service information identified in Mara J. Brown, Sector Miami Waterways
tip shroud of the 62 LPT2 rotor blades, and
this AD, contact Honeywell International Management Division, U.S. Coast
do the following:
(i) Identify the three Z gap contact areas Inc., 111 S 34th Street, Phoenix, AZ 85034– Guard; telephone 305–535–4317, email
with the greatest amount of wear and/or 2802; phone: 800–601–3099; internet: https:// Mara.J.Brown@uscg.mil.
fretting. myaerospace.honeywell.com/wps/portal. SUPPLEMENTARY INFORMATION:
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Document Created: 2018-10-26 10:09:24
Document Modified: 2018-10-26 10:09:24
| 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 March 16, 2018. | |
| Contact | Joseph Costa, Aerospace Engineer, Los Angeles ACO Branch, FAA, 3960 Paramount Blvd., Lakewood, CA 90712-4137; phone: 562-627-5246; fax: 562-627-5210; email: [email protected] | |
| FR Citation | 83 FR 4167 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft and Aviation Safety |
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