83 FR 48366 - Airworthiness Directives; Airbus Helicopters
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 186 (September 25, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 186 (September 25, 2018)
| Page Range | 48366-48368 | |
| FR Document | 2018-20487 |
[Federal Register Volume 83, Number 186 (Tuesday, September 25, 2018)] [Rules and Regulations] [Pages 48366-48368] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-20487] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0438; Product Identifier 2017-SW-062-AD; Amendment 39-19410; AD 2018-19-10] RIN 2120-AA64 Airworthiness Directives; Airbus Helicopters AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: We are adopting a new airworthiness directive (AD) for Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters. This AD requires measuring a vibration level in the tail rotor (T/R) drive. This AD was prompted by reports of bearing degradation. The actions of this AD are intended to prevent an unsafe condition on these helicopters. DATES: This AD is effective October 30, 2018. ADDRESSES: For service information identified in this final rule, contact Airbus Helicopters, 2701 N Forum Drive, Grand Prairie, TX 75052; telephone (972) 641-0000 or (800) 232-0323; fax (972) 641-3775; or at http://www.helicopters.airbus.com/website/en/ref/Technical-Support_73.html. You may review the referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. Examining the AD Docket You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018- 0438; or in person at Docket Operations [[Page 48367]] between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the European Aviation Safety Agency (EASA) AD, the economic evaluation, any comments received, and other information. The street address for Docket Operations (phone: 800-647-5527) is 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: Rao Edupuganti, Aviation Safety Engineer, Regulations and Policy Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222- 5110; email [email protected]. SUPPLEMENTARY INFORMATION: Discussion On May 17, 2018, at 83 FR 22886, the Federal Register published our notice of proposed rulemaking (NPRM), which proposed to amend 14 CFR part 39 by adding an AD that would apply to Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters. The NPRM proposed to require measuring the T/R drive vibration level without balancing, cleaning the fan, and repeating the vibration level measurement. If the difference between the two amplitude values is greater than 0.75 inch per second (ips), the NPRM proposed to require replacing each T/R fan bearing. The proposed requirements were intended to prevent degradation of the main gearbox (MGB) oil cooler fan bearing (bearing), which could result in loss of MGB and engine oil cooling function, loss of the rear transmission, and subsequent loss of control of the helicopter. The NPRM was prompted by AD No. 2017-0159, dated August 25, 2017, issued by EASA, which is the Technical Agent for the Member States of the European Union, to correct an unsafe condition for Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters. EASA advises of two occurrences on Model AS355 military helicopters in which the MGB bearing installed on the T/R drive shaft experienced significant degradation. EASA states that while investigation has not determined the cause of the failures, this condition may also occur on other Model AS355 helicopters due to design commonality. According to EASA, this condition, if not detected and corrected, could result in loss of MGB and engine oil cooling function, loss of the rear transmission, and subsequent loss of control of the helicopter. To address this unsafe condition and as an interim measure, the EASA AD requires two vibration level measurements of the forward portion of the tail rotor drive line, one before and one after cleaning the MGB oil cooler fan, and replacing the bearings if excessive level or level trends are detected. The EASA AD also specifies that after the effective date of the AD, only those MGB oil cooler fan assembly bearings that are new or that have passed the vibration level measurements may be installed. Comments We gave the public the opportunity to participate in developing this AD, but we did not receive any comments on the NPRM. FAA's Determination These helicopters have been approved by the aviation authority of France and are approved for operation in the United States. Pursuant to our bilateral agreement with France, EASA, its technical representative, has notified us of the unsafe condition described in the EASA AD. We are issuing this AD because we evaluated all information provided by EASA and determined the unsafe condition exists and is likely to exist or develop on other helicopters of the same type design and that air safety and the public interest require adopting the AD requirements as proposed. Interim Action We consider this AD to be an interim action. The manufacturer is currently developing a terminating action for the unsafe condition described in this AD. If a terminating action is identified, we may consider further rulemaking then. Related Service Information Airbus Helicopters has issued Alert Service Bulletin No. AS355- 05.00.77, Revision 0, dated July 3, 2017, which contains procedures for checking the condition of the fan assembly bearings by measuring the vibration levels of the first section of the T/R drive. Costs of Compliance We estimate that this AD affects 104 helicopters of U.S. Registry. We estimate that operators may incur the following costs in order to comply with this AD. At an average labor rate of $85 per work-hour, measuring the vibration levels requires about 5 work-hours, for a cost of $425 per helicopter and $44,200 for the U.S. fleet. If required, replacing both fan assembly bearings requires about 8 work-hours, and required parts cost $1,064, for a cost of $1,744 per helicopter. 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 helicopters 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. We prepared an economic evaluation of the estimated costs to comply with this AD and placed it in the AD docket. 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: [[Page 48368]] 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): 2018-19-10 Airbus Helicopters: Amendment 39-19410; Docket No. FAA- 2018-0438; Product Identifier 2017-SW-062-AD. (a) Applicability This AD applies to Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters, certificated in any category. (b) Unsafe Condition This AD defines the unsafe condition as degradation of a main gearbox (MGB) oil cooler fan assembly bearing. This condition could result in loss of MGB and engine oil cooling function, loss of the rear transmission, and subsequent loss of control of the helicopter. (c) Effective Date This AD becomes effective October 30, 2018. (d) Compliance You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time. (e) Required Actions (1) Within 165 hours time-in-service (TIS): (i) Measure the tail rotor (T/R) drive vibration level without balancing the T/R drive, and record the amplitude value. (ii) Clean the oil cooler fan. (iii) Measure the T/R drive vibration level without balancing the T/R drive, and record the amplitude value. (iv) Calculate the difference between the two amplitude values. If the difference is greater than 0.75 inch per second (ips), before further flight, replace each oil cooler fan assembly bearing. (2) After the effective date of this AD, do not install an oil cooler fan assembly bearing with more than 0 hours TIS unless the requirements of this AD have been accomplished. (f) Alternative Methods of Compliance (AMOCs) (1) The Manager, Safety Management Section, Rotorcraft Standards Branch, FAA, may approve AMOCs for this AD. Send your proposal to: Rao Edupuganti, Aviation Safety Engineer, Regulations and Policy Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222-5110; email [email protected]. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office, before operating any aircraft complying with this AD through an AMOC. (g) Additional Information (1) Airbus Helicopters Alert Service Bulletin No. AS355- 05.00.77, Revision 0, dated July 3, 2017, which is not incorporated by reference, contains additional information about the subject of this AD. For service information identified in this AD, contact Airbus Helicopters, 2701 N Forum Drive, Grand Prairie, TX 75052; telephone (972) 641-0000 or (800) 232-0323; fax (972) 641-3775; or at http://www.helicopters.airbus.com/website/en/ref/Technical-Support_73.html. You may review a copy of the service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. (2) The subject of this AD is addressed in European Aviation Safety Agency (EASA) AD No. 2017-0159, dated August 25, 2017. You may view the EASA AD on the internet at http://www.regulations.gov in Docket No. FAA-2018-0438. (h) Subject Joint Aircraft Service Component (JASC) Code: 6510, Tail Rotor Driveshaft. Issued in Fort Worth, Texas, on September 12, 2018. Scott A. Horn, Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2018-20487 Filed 9-24-18; 8:45 am] BILLING CODE 4910-13-P
![48366 Federal Register / Vol. 83, No. 186 / Tuesday, September 25, 2018 / Rules and Regulations
describes the unsafe condition as cracking Standards District Office (FSDO), or lacking www.regulations.gov by searching for and
found in the wing rear spar web at the wing a PI, your local FSDO. locating Docket No. FAA–2017–0867.
station (WS) where the flap outboard hinge (2) Contacting the Manufacturer: For any (5) You may view this service information
is attached. We are issuing this AD to detect requirement in this AD to obtain corrective that is incorporated by reference at the
and correct cracks in the wing rear spars and actions from a manufacturer, the action must National Archives and Records
the flap/aileron hinge arm support brackets. be accomplished using a method approved Administration (NARA). For information on
This condition, if not corrected, could result by the Manager, New York ACO Branch, the availability of this material at NARA, call
in structural failure with consequent loss of FAA; or Transport Canada; or Viking Air 202–741–6030, or go to: http://
control of the airplane. Limited’s Transport Canada DOA. If www.archives.gov/federal-register/cfr/ibr-
approved by the DOA, the approval must locations.html.
(f) Actions and Compliance
include the DOA-authorized signature.
Unless already done, do the actions in Issued in Kansas City, Missouri, on
(3) Reporting Requirements: A federal
paragraphs (f)(1) through (5) of this AD: September 7, 2018
agency may not conduct or sponsor, and a
(1) Within 400 hours time-in-service (TIS) person is not required to respond to, nor Melvin J. Johnson,
after October 30, 2018 (the effective date of shall a person be subject to a penalty for Aircraft Certification Service, Deputy
this AD) or within 6 months after October 30, failure to comply with a collection of Director, Policy and Innovation Division,
2018 (the effective date of this AD), information subject to the requirements of AIR–601.
whichever occurs first, visually inspect the the Paperwork Reduction Act unless that [FR Doc. 2018–20802 Filed 9–24–18; 8:45 am]
left-hand and right-hand wing rear spar and collection of information displays a currently BILLING CODE 4910–13–P
flap/aileron hinge arm support brackets by valid OMB Control Number. The OMB
following the Accomplishment Instructions Control Number for this information
of Viking DHC–2 Beaver Service Bulletin collection is 2120–0056. Public reporting for
Number: V2/0009, Revision A, dated DEPARTMENT OF TRANSPORTATION
this collection of information is estimated to
February 10, 2017 (SB V2/0009, Revision A). be approximately 1 hour per response,
(2) For airplanes with an agricultural Federal Aviation Administration
including the time for reviewing instructions,
configuration installed (SOO Mod 2/984), searching existing data sources, gathering
within 400 hours TIS after October 30, 2018 and maintaining the data needed, completing 14 CFR Part 39
(the effective date of this AD) or within 6 and reviewing the collection of information. [Docket No. FAA–2018–0438; Product
months after October 30, 2018 (the effective All responses to this collection of Identifier 2017–SW–062–AD; Amendment
date of this AD), whichever occurs first, information are mandatory. Send comments 39–19410; AD 2018–19–10]
inspect the exterior store support arm bracket regarding this burden estimate or any other
at WS 101.24 by following the aspect of this collection of information, RIN 2120–AA64
Accomplishment Instructions of SB V2/0009, including suggestions for reducing this
Revision A. burden to: Information Collection Clearance Airworthiness Directives; Airbus
(3) If any discrepancies are found during Officer, Federal Aviation Administration, Helicopters
the inspections required in paragraphs (f)(1) 10101 Hillwood Parkway, Fort Worth, TX
and (2) of this AD, before further flight, repair 76177–1524. AGENCY: Federal Aviation
or replace using a method approved by the Administration (FAA), DOT.
Manager, New York ACO Branch, FAA; (h) Related Information
ACTION: Final rule.
Transport Canada; or Viking Air Limited’s Refer to MCAI Transport Canada AD
Transport Canada Design Organization Number CF–2017–17, dated May 18, 2017, SUMMARY: We are adopting a new
Approval (DOA). If approved by the DOA, for related information. You may examine the airworthiness directive (AD) for Airbus
the approval must include the DOA- MCAI on the internet at https:// Helicopters Model AS355E, AS355F,
authorized signature. www.regulations.gov/document?D=FAA-
(4) Within 30 days after completing the 2017-0867-0002.
AS355F1, AS355F2, and AS355N
inspections required in paragraphs (f)(1) and helicopters. This AD requires measuring
(2) of this AD, using the Operator Reply Form (i) Material Incorporated by Reference a vibration level in the tail rotor (T/R)
on page 7 of SB V2/0009, Revision A, report (1) The Director of the Federal Register drive. This AD was prompted by reports
the inspection results to Viking Air Limited approved the incorporation by reference of bearing degradation. The actions of
at the address specified in paragraph (i)(3) of (IBR) of the service information listed in this this AD are intended to prevent an
this AD. paragraph under 5 U.S.C. 552(a) and 1 CFR unsafe condition on these helicopters.
(5) As of October 30, 2018 (the effective part 51.
(2) You must use this service information DATES: This AD is effective October 30,
date of this AD), do not install a wing on any
airplane affected by this AD unless it has as applicable to do the actions required by 2018.
been inspected as specified in paragraphs this AD, unless this AD specifies otherwise. ADDRESSES: For service information
(f)(1) of this AD and paragraph (f)(2) of this (i) Viking DHC–2 Beaver Service Bulletin identified in this final rule, contact
AD, if applicable, and is found free of any Number: V2/0009, Revision A, dated Airbus Helicopters, 2701 N Forum
discrepancies. February 10, 2017. Drive, Grand Prairie, TX 75052;
(ii) Reserved.
(g) Other FAA AD Provisions telephone (972) 641–0000 or (800) 232–
(3) For Viking DHC–2 Beaver service
The following provisions also apply to this information identified in this AD, contact 0323; fax (972) 641–3775; or at http://
AD: Viking Air Limited Technical Support, 1959 www.helicopters.airbus.com/website/
(1) Alternative Methods of Compliance De Havilland Way, Sidney, British Columbia, en/ref/Technical-Support_73.html. You
(AMOCs): The Manager, New York ACO Canada, V8L 5V5; telephone: (North may review the referenced service
Branch, FAA, has the authority to approve America) (800) 663–8444; fax: (250) 656– information at the FAA, Office of the
AMOCs for this AD, if requested using the 0673; email: technical.support@ Regional Counsel, Southwest Region,
procedures found in 14 CFR 39.19. Send vikingair.com; internet: http:// 10101 Hillwood Pkwy., Room 6N–321,
information to ATTN: Aziz Ahmed, www.vikingair.com/support/service- Fort Worth, TX 76177.
Aerospace Engineer, FAA, New York ACO Bulletins.
daltland on DSKBBV9HB2PROD with RULES
Branch, 1600 Stewart Avenue, Suite 410, (4) You may view this service information Examining the AD Docket
Westbury, New York 11590; telephone: (516) at the FAA, Policy and Innovation Division,
228–7329; fax: (516) 794–5531; email: 901 Locust, Kansas City, Missouri 64106. For You may examine the AD docket on
aziz.ahmed@faa.gov. Before using any information on the availability of this the internet at http://
approved AMOC on any airplane to which material at the FAA, call (816) 329–4148. In www.regulations.gov by searching for
the AMOC applies, notify your appropriate addition, you can access this service and locating Docket No. FAA–2018–
principal inspector (PI) in the FAA Flight information on the internet at http:// 0438; or in person at Docket Operations
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![48368 Federal Register / Vol. 83, No. 186 / Tuesday, September 25, 2018 / Rules and Regulations
Authority: 49 U.S.C. 106(g), 40113, 44701. (g) Additional Information DEPARTMENT OF TRANSPORTATION
§ 39.13 [Amended] (1) Airbus Helicopters Alert Service
Bulletin No. AS355–05.00.77, Revision 0, Federal Aviation Administration
■ 2. The FAA amends § 39.13 by adding dated July 3, 2017, which is not incorporated
the following new airworthiness by reference, contains additional information 14 CFR Part 97
directive (AD): about the subject of this AD. For service
[Docket No. 31213; Amdt. No. 3817]
2018–19–10 Airbus Helicopters: information identified in this AD, contact
Amendment 39–19410; Docket No. Airbus Helicopters, 2701 N Forum Drive, Standard Instrument Approach
FAA–2018–0438; Product Identifier Grand Prairie, TX 75052; telephone (972)
2017–SW–062–AD. Procedures, and Takeoff Minimums
641–0000 or (800) 232–0323; fax (972) 641– and Obstacle Departure Procedures;
(a) Applicability 3775; or at http://www.helicopters.airbus. Miscellaneous Amendments
This AD applies to Airbus Helicopters com/website/en/ref/Technical-Support_
Model AS355E, AS355F, AS355F1, AS355F2, 73.html. You may review a copy of the AGENCY: Federal Aviation
and AS355N helicopters, certificated in any service information at the FAA, Office of the Administration (FAA), DOT.
category. Regional Counsel, Southwest Region, 10101 ACTION: Final rule.
Hillwood Pkwy., Room 6N–321, Fort Worth,
(b) Unsafe Condition
TX 76177. SUMMARY: This rule establishes, amends,
This AD defines the unsafe condition as (2) The subject of this AD is addressed in suspends, or removes Standard
degradation of a main gearbox (MGB) oil European Aviation Safety Agency (EASA) AD Instrument Approach Procedures
cooler fan assembly bearing. This condition
No. 2017–0159, dated August 25, 2017. You (SIAPs) and associated Takeoff
could result in loss of MGB and engine oil
cooling function, loss of the rear may view the EASA AD on the internet at Minimums and Obstacle Departure
transmission, and subsequent loss of control http://www.regulations.gov in Docket No. Procedures (ODPs) for operations at
of the helicopter. FAA–2018–0438. certain airports. These regulatory
(c) Effective Date (h) Subject actions are needed because of the
adoption of new or revised criteria, or
This AD becomes effective October 30, Joint Aircraft Service Component (JASC) because of changes occurring in the
2018. Code: 6510, Tail Rotor Driveshaft.
National Airspace System, such as the
(d) Compliance Issued in Fort Worth, Texas, on September commissioning of new navigational
You are responsible for performing each 12, 2018. facilities, adding new obstacles, or
action required by this AD within the Scott A. Horn, changing air traffic requirements. These
specified compliance time unless it has changes are designed to provide safe
Deputy Director for Regulatory Operations,
already been accomplished prior to that time. and efficient use of the navigable
Compliance & Airworthiness Division,
(e) Required Actions Aircraft Certification Service. airspace and to promote safe flight
(1) Within 165 hours time-in-service (TIS): [FR Doc. 2018–20487 Filed 9–24–18; 8:45 am] operations under instrument flight rules
(i) Measure the tail rotor (T/R) drive at the affected airports.
BILLING CODE 4910–13–P
vibration level without balancing the T/R DATES: This rule is effective September
drive, and record the amplitude value. 25, 2018. The compliance date for each
(ii) Clean the oil cooler fan. SIAP, associated Takeoff Minimums,
(iii) Measure the T/R drive vibration level DEPARTMENT OF TRANSPORTATION
and ODP is specified in the amendatory
without balancing the T/R drive, and record
the amplitude value. Federal Aviation Administration provisions.
(iv) Calculate the difference between the The incorporation by reference of
two amplitude values. If the difference is 14 CFR Part 91 certain publications listed in the
greater than 0.75 inch per second (ips), before regulations is approved by the Director
further flight, replace each oil cooler fan of the Federal Register as of September
[Docket No.: FAA–2018–0838; Amdt. No.
assembly bearing. 25, 2018.
(2) After the effective date of this AD, do 91–352]
ADDRESSES: Availability of matters
not install an oil cooler fan assembly bearing
with more than 0 hours TIS unless the RIN 2120–AL34
incorporated by reference in the
requirements of this AD have been amendment is as follows:
accomplished. Amendment of the Prohibition Against For Examination
(f) Alternative Methods of Compliance Certain Flights in the Pyongyang Flight
1. U.S. Department of Transportation,
(AMOCs) Information Region (FIR) (ZKKP)
Docket Ops-M30, 1200 New Jersey
(1) The Manager, Safety Management Avenue SE, West Bldg., Ground Floor,
Section, Rotorcraft Standards Branch, FAA,
Correction
Washington, DC 20590–0001.
may approve AMOCs for this AD. Send your In rule document 2018–20173
proposal to: Rao Edupuganti, Aviation Safety 2. The FAA Air Traffic Organization
Engineer, Regulations and Policy Section, appearing on pages 47059–47065 in the Service Area in which the affected
Rotorcraft Standards Branch, FAA, 10101 issue of September 18, 2018, make the airport is located;
Hillwood Pkwy., Fort Worth, TX 76177; following correction: 3. The office of Aeronautical
telephone (817) 222–5110; email 9-ASW- On page 47061, in the second column, Navigation Products, 6500 South
FTW-AMOC-Requests@faa.gov. MacArthur Blvd., Oklahoma City, OK
(2) For operations conducted under a 14
in the third line, ‘‘September 18, 2010’’
should read ‘‘September 18, 2020’’. 73169 or,
CFR part 119 operating certificate or under 4. The National Archives and Records
daltland on DSKBBV9HB2PROD with RULES
14 CFR part 91, subpart K, we suggest that [FR Doc. C1–2018–20173 Filed 9–24–18; 8:45 am]
Administration (NARA). For
you notify your principal inspector, or
lacking a principal inspector, the manager of
BILLING CODE 1301–00–D information on the availability of this
the local flight standards district office or material at NARA, call 202–741–6030,
certificate holding district office, before or go to: http://www.archives.gov/
operating any aircraft complying with this federal_register/code_of_federal_
AD through an AMOC. regulations/ibr_locations.html.
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Document Created: 2018-09-25 00:21:51
Document Modified: 2018-09-25 00:21:51
| 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 is effective October 30, 2018. | |
| Contact | Rao Edupuganti, Aviation Safety Engineer, Regulations and Policy Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222- 5110; email [email protected] | |
| FR Citation | 83 FR 48366 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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