83 FR 15519 - Airworthiness Directives; Pratt & Whitney
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 70 (April 11, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 70 (April 11, 2018)
| Page Range | 15519-15521 | |
| FR Document | 2018-07413 |
[Federal Register Volume 83, Number 70 (Wednesday, April 11, 2018)] [Proposed Rules] [Pages 15519-15521] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-07413] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2017-1206; Product Identifier 2017-NE-42-AD] RIN 2120-AA64 Airworthiness Directives; Pratt & Whitney AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to adopt a new airworthiness directive (AD) for all Pratt & Whitney (PW) PW2037, PW2037M, and PW2040 turbofan engines. This proposed AD was prompted by an uncommanded high thrust event that occurred during approach on January 16, 2016, and during landing on April 6, 2016. This proposed AD would require removal of the metering valve pilot valve (MVPV) within certain fuel control units (FCUs) and the MVPV's replacement 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 May 29, 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- [[Page 15520]] 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 Pratt & Whitney Division, 400 Main St., East Hartford, CT 06118; phone: 800- 565-0140; fax: 860-565-5442. 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- 1206; 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 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- 2017-1206; Product Identifier 2017-NE-42-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 We received reports of an uncommanded high thrust event that occurred during approach on January 16, 2016, and during landing on April 6, 2016, due to loosening of the MVPV end cap. These uncommanded events were associated with improper maintenance on the MVPV within certain FCUs. This proposed AD would require removal of the MVPV for certain FCUs. This condition, if not addressed, could result in failure of the FCU, loss of engine thrust control, and reduced control of the airplane. Related Service Information Under 1 CFR Part 51 We reviewed PW Alert Service Bulletin (ASB) PW2000 A73-172, dated October 16, 2017. The ASB describes procedures for replacement of the MVPV for certain FCUs. 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. 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 replacement of the MVPV for certain FCU serial numbers, except as discussed under ``Differences Between this Proposed AD and the Service Information.'' Differences Between This Proposed AD and the Service Information PW ASB PW2000 A73-172, dated October 16, 2017, specifies installation of a new UTC Aerospace Systems MVPV in certain FCUs. This AD sets forth an option to repair a MVPV to be installed in certain FCUs according to the criteria listed in paragraph h(2)(ii) of this AD. Costs of Compliance We estimate that this proposed AD affects 212 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 ---------------------------------------------------------------------------------------------------------------- Remove and replace MVPV..................... $0 $12,000 $12,000 $2,544,000 ---------------------------------------------------------------------------------------------------------------- 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. [[Page 15521]] 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): Pratt & Whitney: Docket No. FAA-2017-1206; Product Identifier 2017- NE-42-AD. (a) Comments Due Date We must receive comments by May 29, 2018. (b) Affected ADs None. (c) Applicability This AD applies to all Pratt & Whitney (PW) PW2037, PW2037M, and PW2040 turbofan engines with JFC104-1 fuel control units (FCUs) with serial numbers listed in the Accomplishment Instructions, Table 1, of PW Alert Service Bulletin PW2000 A73-172, dated October 16, 2017. (d) Subject Joint Aircraft System Component (JASC) Code 7321, Fuel Control/ Turbine Engines. (e) Unsafe Condition This AD was prompted by an uncommanded high thrust event that occurred during approach on January 16, 2016, and during landing on April 6, 2016. We are issuing this AD to prevent failure of the end cap to remain taut, causing uncommanded higher fuel flow to the engine. The unsafe condition, if not addressed, could result in failure of the FCU, loss of engine thrust control and reduced control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Remove from service the metering valve pilot valve (MVPV) from the FCU at the next FCU overhaul after the effective date of the AD and replace the MVPV with a part eligible for installation. (h) Definitions (1) For the purpose of this AD, an FCU overhaul is defined as the removal of the FCU from the engine and induction of the FCU into a FCU shop that can perform these procedures regardless of the scheduled maintenance action or the reason for the FCU removal. (2) For the purpose of this AD, a part eligible for installation is one of the following: (i) A zero time MVPV, or (ii) An MVPV repaired by a method approved by the FAA that includes an end plug with tamper proof features. (i) Installation Prohibition After the effective date of this AD, do not install any MVPV removed in accordance with paragraph (g) unless it has been repaired per paragraph (h)(2)(ii) of this AD. (j) 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 (k)(1) of this AD. Information may be emailed 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. (k) 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 Pratt & Whitney Division, 400 Main St., East Hartford, CT 06118; phone: 800-565-0140; fax: 860-565-5442. You may view this referenced 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. Issued in Burlington, Massachusetts, on April 5, 2018. Robert J. Ganley, Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2018-07413 Filed 4-10-18; 8:45 am] BILLING CODE 4910-13-P
![Federal Register / Vol. 83, No. 70 / Wednesday, April 11, 2018 / Proposed Rules 15519
In accordance with that order, issuance (c) Applicability information. You may examine the MCAI on
of ADs is normally a function of the This AD applies to Pacific Aerospace the internet at http://www.regulations.gov by
Compliance and Airworthiness Limited Model 750XL airplanes, all serial searching for and locating Docket No. FAA–
Division, but during this transition numbers up to and including 215, 2018–0286. For service information related to
certificated in any category. this AD, contact Pacific Aerospace Limited,
period, the Executive Director has Airport Road, Hamilton, Private Bag 3027,
delegated the authority to issue ADs (d) Subject Hamilton 3240, New Zealand; phone: +64
applicable to small airplanes, gliders, Air Transport Association of America 7843 6144; fax: +64 843 6134; email: pacific@
balloons, airships, domestic business jet (ATA) Code 54: Nacelles/Pylons. aerospace.co.nz; internet:
transport airplanes, and associated www.aerospace.co.nz. You may review this
appliances to the Director of the Policy (e) Reason referenced service information at the FAA,
and Innovation Division. This AD was prompted by mandatory Policy and Innovation Division, 901 Locust,
continuing airworthiness information (MCAI) Kansas City, Missouri 64106. For information
Regulatory Findings originated by an aviation authority of another on the availability of this material at the
We determined that this proposed AD country to identify and address an unsafe FAA, call (816) 329–4148.
would not have federalism implications condition on an aviation product. The MCAI Issued in Kansas City, Missouri, on April
describes the unsafe condition as airplane 4, 2018.
under Executive Order 13132. This sound insulation materials attached to the aft
proposed AD would not have a face of the firewall not complying with the Melvin J. Johnson,
substantial direct effect on the States, on applicable burn testing criteria for materials Deputy Director, Policy & Innovation Division,
the relationship between the national on the cabin side of the firewall. We are Aircraft Certification Service.
Government and the States, or on the issuing this AD to prevent the spread of fire [FR Doc. 2018–07433 Filed 4–10–18; 8:45 am]
distribution of power and into the cabin in case of an engine fire. BILLING CODE 4910–13–P
responsibilities among the various (f) Actions and Compliance
levels of government.
Unless already done, do the following
For the reasons discussed above, I DEPARTMENT OF TRANSPORTATION
actions in paragraphs (f)(1) and (2) of this
certify this proposed regulation: AD:
(1) Is not a ‘‘significant regulatory Federal Aviation Administration
(1) Within the next 90 days after the
action’’ under Executive Order 12866, effective date of this AD, inspect the aft face
(2) Is not a ‘‘significant rule’’ under of the firewall and determine if the sound 14 CFR Part 39
the DOT Regulatory Policies and insulation material is installed per the [Docket No. FAA–2017–1206; Product
Procedures (44 FR 11034, February 26, Inspection Instructions in Pacific Aerospace Identifier 2017–NE–42–AD]
1979), Service Bulletin PACSB/XL/095, Issue 1,
(3) Will not affect intrastate aviation dated December 21, 2017. RIN 2120–AA64
in Alaska, and (2) If a layer of black foam insulating
(4) Will not have a significant material is found covering the firewall during Airworthiness Directives; Pratt &
the inspection required in paragraph (f)(1) of Whitney
economic impact, positive or negative, this AD, before further flight, remove the
on a substantial number of small entities material per the Accomplishment AGENCY: Federal Aviation
under the criteria of the Regulatory Instructions in Pacific Aerospace Service Administration (FAA), DOT.
Flexibility Act. Bulletin PACSB/XL/095, Issue 1, dated ACTION: Notice of proposed rulemaking
December 21, 2017. (NPRM).
List of Subjects in 14 CFR Part 39
(g) Other FAA AD Provisions
Air transportation, Aircraft, Aviation SUMMARY: We propose to adopt a new
safety, Incorporation by reference, The following provisions also apply to this
AD:
airworthiness directive (AD) for all Pratt
Safety. & Whitney (PW) PW2037, PW2037M,
(1) Alternative Methods of Compliance
The Proposed Amendment (AMOCs): The Manager, Small Airplane and PW2040 turbofan engines. This
Standards Branch, FAA, has the authority to proposed AD was prompted by an
Accordingly, under the authority approve AMOCs for this AD, if requested uncommanded high thrust event that
delegated to me by the Administrator, using the procedures found in 14 CFR 39.19. occurred during approach on January
the FAA proposes to amend 14 CFR part Send information to ATTN: Mike Kiesov, 16, 2016, and during landing on April
39 as follows: Aerospace Engineer, FAA, Small Airplane 6, 2016. This proposed AD would
Standards Branch, 901 Locust, Room 301, require removal of the metering valve
PART 39—AIRWORTHINESS Kansas City, Missouri 64106; telephone:
DIRECTIVES (816) 329–4144; fax: (816) 329–4090; email:
pilot valve (MVPV) within certain fuel
mike.kiesov@faa.gov. Before using any control units (FCUs) and the MVPV’s
■ 1. The authority citation for part 39 approved AMOC on any airplane to which replacement with a part eligible for
continues to read as follows: the AMOC applies, notify your appropriate installation. We are proposing this AD
Authority: 49 U.S.C. 106(g), 40113, 44701.
principal inspector (PI) in the FAA Flight to address the unsafe condition on these
Standards District Office (FSDO), or lacking products.
§ 39.13 [Amended] a PI, your local FSDO.
DATES: We must receive comments on
(2) Contacting the Manufacturer: For any
■ 2. The FAA amends § 39.13 by adding requirement in this AD to obtain corrective
this proposed AD by May 29, 2018.
the following new AD: actions from a manufacturer, the action must ADDRESSES: You may send comments,
Pacific Aerospace Limited: Docket No. FAA– be accomplished using a method approved using the procedures found in 14 CFR
nshattuck on DSK9F9SC42PROD with PROPOSALS
2018–0286; Product Identifier 2018–CE– by the Manager, Small Airplane Standards 11.43 and 11.45, by any of the following
008–AD. Branch, FAA; or the Civil Aviation Authority methods:
(a) Comments Due Date
of New Zealand (CAA). • Federal eRulemaking Portal: Go to
(h) Related Information http://www.regulations.gov. Follow the
We must receive comments by May 29,
2018. Refer to MCAI CAA AD DCA/750XL/27A, instructions for submitting comments.
dated March 1, 2018; and Pacific Aerospace • Fax: 202–493–2251.
(b) Affected ADs Service Bulletin PACSB/XL/095, Issue 1, • Mail: U.S. Department of
None. dated December 21, 2017, for related Transportation, Docket Operations, M–
VerDate Sep<11>2014 14:52 Apr 10, 2018 Jkt 244001 PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 E:\FR\FM\11APP1.SGM 11APP1](https://thefederalregister.org/doc/83_FR_15589/page/1.svg)
![Federal Register / Vol. 83, No. 70 / Wednesday, April 11, 2018 / Proposed Rules 15521
For the reasons discussed above, I thrust control and reduced control of the Issued in Burlington, Massachusetts, on
certify this proposed regulation: airplane. April 5, 2018.
(1) Is not a ‘‘significant regulatory Robert J. Ganley,
(f) Compliance
action’’ under Executive Order 12866, Manager, Engine and Propeller Standards
Comply with this AD within the Branch, Aircraft Certification Service.
(2) Is not a ‘‘significant rule’’ under compliance times specified, unless already
the DOT Regulatory Policies and done.
[FR Doc. 2018–07413 Filed 4–10–18; 8:45 am]
Procedures (44 FR 11034, February 26, BILLING CODE 4910–13–P
1979), (g) Required Actions
(3) Will not affect intrastate aviation Remove from service the metering valve
in Alaska, and pilot valve (MVPV) from the FCU at the next DEPARTMENT OF TRANSPORTATION
(4) Will not have a significant FCU overhaul after the effective date of the
AD and replace the MVPV with a part Federal Aviation Administration
economic impact, positive or negative,
on a substantial number of small entities eligible for installation.
14 CFR Part 71
under the criteria of the Regulatory (h) Definitions
Flexibility Act. [Docket No. FAA–2017–1013; Airspace
(1) For the purpose of this AD, an FCU Docket No. 17–AWP–12]
List of Subjects in 14 CFR Part 39 overhaul is defined as the removal of the
FCU from the engine and induction of the Proposed Establishment of the
Air transportation, Aircraft, Aviation FCU into a FCU shop that can perform these
safety, Incorporation by reference, Hawaiian Islands High and the
procedures regardless of the scheduled Hawaiian Islands Low Offshore
Safety. maintenance action or the reason for the FCU
Airspace Areas; Hawaii.
The Proposed Amendment removal.
(2) For the purpose of this AD, a part AGENCY: Federal Aviation
Accordingly, under the authority eligible for installation is one of the Administration (FAA), DOT.
delegated to me by the Administrator, following: ACTION: Notice of proposed rulemaking
the FAA proposes to amend 14 CFR part (i) A zero time MVPV, or (NPRM).
39 as follows: (ii) An MVPV repaired by a method
approved by the FAA that includes an end SUMMARY: This action proposes to
PART 39—AIRWORTHINESS plug with tamper proof features. establish the Hawaiian High and
DIRECTIVES (i) Installation Prohibition Hawaiian Low Offshore airspace area.
The proposed action would establish
■ 1. The authority citation for part 39 After the effective date of this AD, do not
install any MVPV removed in accordance
Class A airspace extending upward from
continues to read as follows: 18,000 feet mean sea level (MSL) to and
with paragraph (g) unless it has been repaired
Authority: 49 U.S.C. 106(g), 40113, 44701. per paragraph (h)(2)(ii) of this AD. including flight level (FL) 600; and
Class E airspace, extending upward
§ 39.13 [Amended] (j) Alternative Methods of Compliance from 1,200 feet MSL to and including
■ 2. The FAA amends § 39.13 by adding (AMOCs) 17,999 feet MSL around the Hawaiian
the following new airworthiness (1) The Manager, ECO Branch, FAA, has Islands. The FAA is proposing this
directive (AD): the authority to approve AMOCs for this AD, action to provide additional airspace
if requested using the procedures found in 14 within which domestic air traffic
Pratt & Whitney: Docket No. FAA–2017–
1206; Product Identifier 2017–NE–42– CFR 39.19. In accordance with 14 CFR 39.19, control (ATC) procedures would be
send your request to your principal inspector
AD. used. Establishment of the Class A and
or local Flight Standards District Office, as
(a) Comments Due Date Class E airspaces would enhance the
appropriate. If sending information directly
to the manager of the certification office, management of air traffic operations and
We must receive comments by May 29,
send it to the attention of the person result in more efficient use of that
2018.
identified in paragraph (k)(1) of this AD. airspace.
(b) Affected ADs Information may be emailed to: ANE-AD- DATES: Comments must be received on
None. AMOC@faa.gov. or before May 29, 2018.
(2) Before using any approved AMOC,
(c) Applicability ADDRESSES: Send comments on this
notify your appropriate principal inspector,
This AD applies to all Pratt & Whitney proposal to the U.S. Department of
or lacking a principal inspector, the manager
(PW) PW2037, PW2037M, and PW2040 of the local flight standards district office/ Transportation, Docket Operations, 1200
turbofan engines with JFC104–1 fuel control certificate holding district office. New Jersey Avenue SE, West Building
units (FCUs) with serial numbers listed in the Ground Floor, Room W12–140,
Accomplishment Instructions, Table 1, of PW (k) Related Information Washington, DC 20590–0001; telephone:
Alert Service Bulletin PW2000 A73–172, (1) For more information about this AD, 1 (800) 647–5527, or (202) 366–9826.
dated October 16, 2017. contact Kevin M. Clark, Aerospace Engineer, You must identify FAA Docket Number
(d) Subject ECO Branch, FAA, 1200 District Avenue, FAA–2017–1013 and Airspace Docket
Burlington, MA 01803; phone: 781–238– Number 17–AWP–12 at the beginning of
Joint Aircraft System Component (JASC)
7088; fax: 781–238–7199; email: your comments. You may also submit
Code 7321, Fuel Control/Turbine Engines.
Kevin.M.Clark@faa.gov. comments through the internet at http://
(e) Unsafe Condition (2) For service information identified in
www.regulations.gov.
nshattuck on DSK9F9SC42PROD with PROPOSALS
This AD was prompted by an this AD, contact Pratt & Whitney Division,
FAA Order 7400.11B, Airspace
uncommanded high thrust event that 400 Main St., East Hartford, CT 06118;
phone: 800–565–0140; fax: 860–565–5442.
Designations and Reporting Points, and
occurred during approach on January 16, subsequent amendments can be viewed
2016, and during landing on April 6, 2016. You may view this referenced service
We are issuing this AD to prevent failure of information at the FAA, Engine and Propeller online at http://www.faa.gov/air_traffic/
the end cap to remain taut, causing Standards Branch, 1200 District Avenue, publications/. For further information,
uncommanded higher fuel flow to the engine. Burlington, MA. For information on the you can contact the Airspace Policy
The unsafe condition, if not addressed, could availability of this material at the FAA, call Group, Federal Aviation
result in failure of the FCU, loss of engine 781–238–7759. Administration, 800 Independence
VerDate Sep<11>2014 14:52 Apr 10, 2018 Jkt 244001 PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 E:\FR\FM\11APP1.SGM 11APP1](https://thefederalregister.org/doc/83_FR_15589/page/3.svg)
Document Created: 2018-04-10 23:59:42
Document Modified: 2018-04-10 23:59:42
| 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 May 29, 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 15519 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
2025 Federal Register | Disclaimer | Privacy Policy
USC | CFR | eCFR