82 FR 13063 - Airworthiness Directives; CFM International S.A. Turbofan Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 82, Issue 45 (March 9, 2017)
Federal Aviation Administration
Federal Register Volume 82, Issue 45 (March 9, 2017)
| Page Range | 13063-13065 | |
| FR Document | 2017-04656 |
[Federal Register Volume 82, Number 45 (Thursday, March 9, 2017)] [Rules and Regulations] [Pages 13063-13065] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2017-04656] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2016-9128; Directorate Identifier 2016-NE-19-AD; Amendment 39-18820; AD 2017-05-09] RIN 2120-AA64 Airworthiness Directives; CFM International S.A. Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: We are adopting a new airworthiness directive (AD) for certain CFM International S.A. (CFM) CFM56-5 turbofan engines. This AD requires removal of the radial drive shaft (RDS) assembly and the RDS outer housing and their replacement with parts eligible for installation. This AD was prompted by reports of the failure of the RDS on CFM CFM56- 5B engines. We are issuing this AD to correct the unsafe condition on these products. DATES: This AD becomes effective April 13, 2017. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of April 13, 2017. ADDRESSES: For service information identified in this final rule, contact CFM [[Page 13064]] International Inc., Aviation Operations Center, 1 Neumann Way, M/D Room 285, Cincinnati, OH 45125; phone: 877-432-3272; fax: 877-432-3329; email: [email protected]. 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-2016-9128. 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- 9128; 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 mandatory continuing airworthiness information (MCAI), 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: Kasra Sharifi, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7773; 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 the specified products. The NPRM was published in the Federal Register on November 1, 2016 (81 FR 75761). The NPRM proposed to correct an unsafe condition for the specified products. We have received 9 reports of failure of the RDS on CFM CFM56-5B engines. CFM has identified an affected population of RDSs suspected of generating unbalance levels that would lead to failure of the RDS bearing. This AD requires removal of the RDS assembly and the RDS outer housing for the affected population. This condition, if not corrected, could result in failure of the RDS, which could lead to failure of one or more engines, loss of thrust control, and damage to the airplane. Comments We gave the public the opportunity to participate in developing this AD. We considered the comments received. Request To Withdraw NPRM Delta Air Lines (Delta) requested that we withdraw the NPRM or reduce the applicability to RDS assemblies not returned to CFM. Delta stated that the suspect population will likely be in voluntary compliance by the effective date of this AD. Delta also stated that CFM requested that the affected parts be returned to CFM, which will ensure no returned parts are installed in the future. We disagree. The FAA has found that an unsafe condition exists, which requires removal of parts. The SB alone does not constitute a regulatory requirement, so this AD is required to mandate removal of parts from service. Compliance with the actions specified in this AD are mandatory, including the portions of the SB that are incorporated by reference (IBR) in this AD. We did not change this AD. Request To Revise Compliance Delta requested that this AD include a statement in the compliance section stating that compliance can be shown by a records review. Delta reasons that this will allow a credit for previous action. The phrase ``unless already done . . .'' in paragraph (f) of this AD already provides credit for operators that have complied with this AD before the effective date of this AD. We did not change this AD. Request To Revise Compliance CFM requested that we expand the applicability of this AD to include all CFM56-5 models not listed in paragraph (c) of this AD. CFM reasons that the affected RDS part numbers (P/Ns) are eligible for installation on other CFM56-5 model series not listed in paragraph (c) of this AD. We disagree. We are issuing this AD to prevent failure of the RDS, which could lead to dual in-flight shutdown (IFSD), in the affected engines, loss of control, and damage to the airplane. RDS P/Ns are a known population and applicability represents those engines in which they were installed. We did not change this AD. Conclusion We reviewed the available data, including the comments received, and determined that air safety and the public interest require adopting this AD as proposed. Related Service Information Under 1 CFR Part 51 CFM International S.A. has issued Service Bulletin (SB) CFM56-5B S/ B 72-0934, dated August 1, 2016. The SB describes procedures for removal of the affected RDS assembly and the RDS outer housing. 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 eight engines installed on airplanes of U.S. registry. We estimate the following costs to comply with this AD: Estimated Costs ---------------------------------------------------------------------------------------------------------------- Cost per Cost on U.S. Action Labor cost Parts cost product operators ---------------------------------------------------------------------------------------------------------------- Removal and replacement of the RDS 6 work-hours x $85 per $37,000 $37,510 $300,080 assembly and RDS outer housing. hour = $510. ---------------------------------------------------------------------------------------------------------------- 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 [[Page 13065]] 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 We determined that 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 this AD: (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 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): 2017-05-09 CFM International S.A.: Amendment 39-18820; Docket No. FAA-2016-9128; Directorate Identifier 2016-NE-19-AD. (a) Effective Date This AD becomes effective April 13, 2017. (b) Affected ADs None. (c) Applicability This AD applies to CFM International S.A. (CFM) CFM56-5B models, CFM56-5B/P models, CFM56-5B/3 models, CFM56-5B/2P models, CFM56-5B/ P1 models, CFM56-5B/2P1 models, and CFM56-5B/3B1 models engines with a radial drive shaft (RDS) serial number (S/N) listed in Appendix A of CFM Service Bulletin (SB) CFM56-5B S/B 72-0934, dated August 1, 2016, installed. (d) Subject Air Transport Association (ATA) of America Code 83, Accessory Gearboxes. (e) Unsafe Condition This AD was prompted by reports of the failure of the RDS on CFM CFM56-5B engines. We are issuing this AD to prevent failure of the RDS, which could lead to failure of one or more engines, loss of thrust control, and damage to the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. Within 6 months after the effective date of this AD, remove the RDS assembly, part number (P/N) 305-165-101-0, and RDS outer housing, P/N 301-295-106-0, and replace with parts eligible for installation. (g) Installation Prohibition After the effective date of this AD, do not install on any engine, an RDS with an S/N identified in Appendix A of CFM SB CFM56- 5B S/B 72-0934, dated August 1, 2016. (h) 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]. (i) Related Information For more information about this AD, contact Kasra Sharifi, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7773; fax: 781-238-7199; email: [email protected]. (j) 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) CFM International S.A. (CFM) Service Bulletin CFM56-5B S/B 72-0934, dated August 1, 2016. (ii) Reserved. (3) For CFM service information identified in this AD, contact CFM International Inc., Aviation Operations Center, 1 Neumann Way, M/D Room 285, Cincinnati, OH 45125; phone: 877-432-3272; fax: 877- 432-3329; email: [email protected]. (4) You may view this service information at 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 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 February 24, 2017. Carlos A Pestana, Acting Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2017-04656 Filed 3-8-17; 8:45 am] BILLING CODE 4910-13-P
![Federal Register / Vol. 82, No. 45 / Thursday, March 9, 2017 / Rules and Regulations 13063
Part A, Subpart III, Section 44701: (a) Effective Date (2) You must use this service information
General requirements.’’ Under that This AD becomes effective April 13, 2017. as applicable to do the actions required by
section, Congress charges the FAA with this AD, unless the AD specifies otherwise.
(b) Affected ADs (i) Safran Helicopter Engines Mandatory
promoting safe flight of civil aircraft in
None. Service Bulletin No. 292 73 3158, Version A,
air commerce by prescribing regulations dated April 7, 2016.
for practices, methods, and procedures (c) Applicability (ii) Reserved.
the Administrator finds necessary for This AD applies to all Safran Helicopter (3) For Safran Helicopter Engines service
safety in air commerce. This regulation Engines S.A. Arriel 2B turboshaft engines information identified in this AD, contact
is within the scope of that authority with a pre-modification (mod) TU 158 hydro- Safran Helicopter Engines, S.A., 40220
because it addresses an unsafe condition mechanical metering unit (HMU), installed. Tarnos, France; phone: (33) 05 59 74 40 00;
that is likely to exist or develop on fax: (33) 05 59 74 45 15.
(d) Reason (4) You may view this service information
products identified in this rulemaking
This AD was prompted by a report of an at FAA, Engine & Propeller Directorate, 1200
action. uncommanded in-flight shutdown (IFSD) on District Avenue, Burlington, MA. For
Regulatory Findings a single engine helicopter caused by a low information on the availability of this
returning spring rate of the needle of the material at the FAA, call 781–238–7125.
We determined that this AD will not HMU. We are issuing this AD to prevent (5) You may view this service information
have federalism implications under failure of the HMU, failure of the engine, at the National Archives and Records
Executive Order 13132. This AD will IFSD, and loss of the helicopter. Administration (NARA). For information on
not have a substantial direct effect on (e) Actions and Compliance the availability of this material at NARA, call
the States, on the relationship between 202–741–6030, or go to: http://
Comply with this AD within the www.archives.gov/federal-register/cfr/ibr-
the national government and the States, compliance times specified, unless already
or on the distribution of power and locations.html.
done.
responsibilities among the various (1) For an engine in pre-mod TU 158 Issued in Burlington, Massachusetts, on
levels of government. configuration, within 200 engine hours, or February 27, 2017.
For the reasons discussed above, I within 5 months, whichever occurs first after Robert J. Ganley,
certify this AD: the effective date of this AD, remove the pre- Acting Manager, Engine & Propeller
mod TU 158 HMU from service and replace Directorate, Aircraft Certification Service.
(1) Is not a ‘‘significant regulatory it with a part eligible for installation.
action’’ under Executive Order 12866, (2) Reserved.
[FR Doc. 2017–04634 Filed 3–8–17; 8:45 am]
(2) Is not a ‘‘significant rule’’ under BILLING CODE 4910–13–P
the DOT Regulatory Policies and (f) Installation Prohibition
Procedures (44 FR 11034, February 26, After the effective date of the AD, do not
1979), install any pre-mod TU 158 HMU into any DEPARTMENT OF TRANSPORTATION
engine.
(3) Will not affect intrastate aviation
(g) Definition
Federal Aviation Administration
in Alaska to the extent that it justifies
making a regulatory distinction, and For the purpose of this AD, an HMU 14 CFR Part 39
(4) Will not have a significant eligible for installation is one that
economic impact, positive or negative, incorporates mod TU 158 in accordance with [Docket No. FAA–2016–9128; Directorate
on a substantial number of small entities Safran Helicopter Engines, S.A. Mandatory Identifier 2016–NE–19–AD; Amendment 39–
Service Bulletin No. 292 73 3158, Version A, 18820; AD 2017–05–09]
under the criteria of the Regulatory
dated April 7, 2016, or other FAA-approved
Flexibility Act. parts. RIN 2120–AA64
List of Subjects in 14 CFR Part 39 (h) Alternative Methods of Compliance Airworthiness Directives; CFM
Air transportation, Aircraft, Aviation (AMOCs) International S.A. Turbofan Engines
safety, Incorporation by reference, The Manager, Engine Certification Office,
Safety. may approve AMOCs for this AD. Use the AGENCY: Federal Aviation
procedures found in 14 CFR 39.19 to make Administration (FAA), DOT.
Adoption of the Amendment your request. You may email your request to: ACTION: Final rule.
ANE-AD-AMOC@faa.gov.
Accordingly, under the authority
(i) Related Information SUMMARY: We are adopting a new
delegated to me by the Administrator,
airworthiness directive (AD) for certain
the FAA amends 14 CFR part 39 as (1) For more information about this AD,
CFM International S.A. (CFM) CFM56–
follows: contact Kenneth Steeves, Aerospace
Engineer, Engine Certification Office, FAA, 5 turbofan engines. This AD requires
PART 39—AIRWORTHINESS Engine & Propeller Directorate, 1200 District removal of the radial drive shaft (RDS)
DIRECTIVES Avenue, Burlington, MA 01803; phone: 781– assembly and the RDS outer housing
238–7765; fax: 781–238–7199; email: and their replacement with parts
■ 1. The authority citation for part 39 kenneth.steeves@faa.gov. eligible for installation. This AD was
continues to read as follows: (2) Refer to MCAI European Aviation prompted by reports of the failure of the
Safety Agency (EASA), AD 2016–0098, dated RDS on CFM CFM56–5B engines. We
Authority: 49 U.S.C. 106(g), 40113, 44701. May 23, 2016, for more information. You may
are issuing this AD to correct the unsafe
examine the MCAI in the AD docket on the
§ 39.13 [Amended] Internet at http://www.regulations.gov by condition on these products.
■ 2. The FAA amends § 39.13 by adding searching for and locating it in Docket No. DATES: This AD becomes effective April
jstallworth on DSK7TPTVN1PROD with RULES
the following new airworthiness FAA–2016–7850. 13, 2017.
directive (AD): (j) Material Incorporated by Reference The Director of the Federal Register
approved the incorporation by reference
2017–05–08 Safran Helicopter Engines, (1) The Director of the Federal Register
of a certain publication listed in this AD
S.A. (Type Certificate previously held by approved the incorporation by reference
Turbomeca, S.A.): Amendment 39– (IBR) of the service information listed in this as of April 13, 2017.
18819; Docket No. FAA–2016–7850; paragraph under 5 U.S.C. 552(a) and 1 CFR ADDRESSES: For service information
Directorate Identifier 2016–NE–16–AD. part 51. identified in this final rule, contact CFM
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![Federal Register / Vol. 82, No. 45 / Thursday, March 9, 2017 / Rules and Regulations 13065
safety in air commerce. This regulation models, CFM56–5B/3 models, CFM56–5B/2P (5) You may view this service information
is within the scope of that authority models, CFM56–5B/P1 models, CFM56–5B/ at the National Archives and Records
because it addresses an unsafe condition 2P1 models, and CFM56–5B/3B1 models Administration (NARA). For information on
engines with a radial drive shaft (RDS) serial the availability of this material at NARA, call
that is likely to exist or develop on number (S/N) listed in Appendix A of CFM 202–741–6030, or go to: http://
products identified in this rulemaking Service Bulletin (SB) CFM56–5B S/B 72– www.archives.gov/federal-register/cfr/ibr-
action. 0934, dated August 1, 2016, installed. locations.html.
Regulatory Findings (d) Subject Issued in Burlington, Massachusetts, on
We determined that this AD will not Air Transport Association (ATA) of February 24, 2017.
have federalism implications under America Code 83, Accessory Gearboxes. Carlos A Pestana,
Executive Order 13132. This AD will (e) Unsafe Condition Acting Manager, Engine & Propeller
not have a substantial direct effect on Directorate, Aircraft Certification Service.
This AD was prompted by reports of the
the States, on the relationship between [FR Doc. 2017–04656 Filed 3–8–17; 8:45 am]
failure of the RDS on CFM CFM56–5B
the national government and the States, engines. We are issuing this AD to prevent BILLING CODE 4910–13–P
or on the distribution of power and failure of the RDS, which could lead to
responsibilities among the various failure of one or more engines, loss of thrust
levels of government. control, and damage to the airplane. DEPARTMENT OF TRANSPORTATION
For the reasons discussed above, I (f) Compliance
certify this AD: Federal Aviation Administration
Comply with this AD within the
(1) Is not a ‘‘significant regulatory compliance times specified, unless already
action’’ under Executive Order 12866, 14 CFR Part 71
done.
(2) Is not a ‘‘significant rule’’ under Within 6 months after the effective date of [Docket No. FAA–2017–0116; Airspace
the DOT Regulatory Policies and this AD, remove the RDS assembly, part Docket No. 17–AGL–2]
Procedures (44 FR 11034, February 26, number (P/N) 305–165–101–0, and RDS outer
housing, P/N 301–295–106–0, and replace RIN 2120–AA66
1979), with parts eligible for installation.
(3) Will not affect intrastate aviation Amendment of Air Traffic Service
in Alaska to the extent that it justifies (g) Installation Prohibition (ATS) Routes Q–917 and Q–923;
making a regulatory distinction, and After the effective date of this AD, do not Northcentral United States
(4) Will not have a significant install on any engine, an RDS with an S/N
economic impact, positive or negative, identified in Appendix A of CFM SB AGENCY: Federal Aviation
on a substantial number of small entities CFM56–5B S/B 72–0934, dated August 1, Administration (FAA), DOT.
2016.
under the criteria of the Regulatory ACTION: Final rule, technical
Flexibility Act. (h) Alternative Methods of Compliance amendment.
(AMOCs)
List of Subjects in 14 CFR Part 39 SUMMARY: The FAA is amending two
The Manager, Engine Certification Office,
Air transportation, Aircraft, Aviation FAA, may approve AMOCs for this AD. Use high altitude area navigation (RNAV) Q-
safety, Incorporation by reference, the procedures found in 14 CFR 39.19 to routes that cross the United States
Safety. make your request. You may email your (U.S.)/Canada border in the northcentral
request to: ANE-AD-AMOC@faa.gov. U.S. to update the waypoint name for
Adoption of the Amendment one Canadian waypoint listed in the Q-
(i) Related Information
Accordingly, under the authority For more information about this AD, route descriptions. Specifically, this
delegated to me by the Administrator, contact Kasra Sharifi, Aerospace Engineer, action changes the SASUT waypoint
the FAA amends 14 CFR part 39 as Engine Certification Office, FAA, Engine & name to DUTEL in RNAV routes Q–917
follows: Propeller Directorate, 1200 District Avenue, and Q–923 to match the waypoint
Burlington, MA 01803; phone: 781–238– information contained in the FAA and
PART 39—AIRWORTHINESS 7773; fax: 781–238–7199; email: Canadian aeronautical databases. No air
DIRECTIVES kasra.sharifi@faa.gov. traffic services are affected by this
(j) Material Incorporated by Reference action.
■ 1. The authority citation for part 39
(1) The Director of the Federal Register DATES: Effective date 0901 UTC, June
continues to read as follows: approved the incorporation by reference 22, 2017. The Director of the Federal
Authority: 49 U.S.C. 106(g), 40113, 44701. (IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
Register approves this incorporation by
§ 39.13 [Amended] part 51. reference action under title 1, Code of
(2) You must use this service information Federal Regulations, part 51, subject to
■ 2. The FAA amends § 39.13 by adding
as applicable to do the actions required by the annual revision of FAA Order
the following new airworthiness this AD, unless the AD specifies otherwise. 7400.11 and publication of conforming
directive (AD): (i) CFM International S.A. (CFM) Service amendments.
2017–05–09 CFM International S.A.: Bulletin CFM56–5B S/B 72–0934, dated
August 1, 2016. ADDRESSES: FAA Order 7400.11A,
Amendment 39–18820; Docket No.
FAA–2016–9128; Directorate Identifier (ii) Reserved. Airspace Designations and Reporting
2016–NE–19–AD. (3) For CFM service information identified Points, and subsequent amendments can
in this AD, contact CFM International Inc., be viewed online at http://www.faa.gov/
(a) Effective Date Aviation Operations Center, 1 Neumann air_traffic/publications/. For further
jstallworth on DSK7TPTVN1PROD with RULES
This AD becomes effective April 13, 2017. Way, M/D Room 285, Cincinnati, OH 45125; information, you can contact the
phone: 877–432–3272; fax: 877–432–3329; Airspace Policy Group, Federal Aviation
(b) Affected ADs email: aviation.fleetsupport@ge.com.
(4) You may view this service information
Administration, 800 Independence
None.
at FAA, Engine & Propeller Directorate, 1200 Avenue SW., Washington, DC 20591;
(c) Applicability District Avenue, Burlington, MA. For telephone: (202) 267–8783. The Order is
This AD applies to CFM International S.A. information on the availability of this also available for inspection at the
(CFM) CFM56–5B models, CFM56–5B/P material at the FAA, call 781–238–7125. National Archives and Records
VerDate Sep<11>2014 14:49 Mar 08, 2017 Jkt 241001 PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 E:\FR\FM\09MRR1.SGM 09MRR1](https://thefederalregister.org/doc/82_FR_13108/page/3.svg)
Document Created: 2017-03-09 04:58:33
Document Modified: 2017-03-09 04:58:33
| 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 | Rules and Regulations | |
| Action | Final rule. | |
| Dates | This AD becomes effective April 13, 2017. | |
| Contact | Kasra Sharifi, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7773; fax: 781- 238-7199; email: [email protected] | |
| FR Citation | 82 FR 13063 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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