83 FR 45578 - Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 175 (September 10, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 175 (September 10, 2018)
| Page Range | 45578-45580 | |
| FR Document | 2018-19436 |
[Federal Register Volume 83, Number 175 (Monday, September 10, 2018)] [Proposed Rules] [Pages 45578-45580] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-19436] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2017-1085; Product Identifier 2016-SW-094-AD] RIN 2120-AA64 Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to adopt a new airworthiness directive (AD) for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model MBB-BK 117 A-1, MBB-BK 117A-3, MBB-BK 117 A-4, MBB-BK 117 B-1, MBB-BK 117 B-2, MBB-BK 117 C-1, and MBB-BK 117 C-2 helicopters. This proposed AD would require repetitive inspections of the tail rotor (T/R) gearbox housing. This proposed AD is prompted by a report that a crack was found in a T/ R gearbox housing. The actions of this proposed AD are intended to address an unsafe condition on these products. DATES: We must receive comments on this proposed AD by November 9, 2018. ADDRESSES: You may send comments by any of the following methods:Federal eRulemaking Docket: Go to http://www.regulations.gov. Follow the online instructions for sending your comments electronically. Fax: 202-493-2251. Mail: Send comments to the U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590-0001. [[Page 45579]] Hand Delivery: Deliver to the ``Mail'' address between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. 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- 1085; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this proposed AD, the European Aviation Safety Agency (EASA) AD, the economic evaluation, any comments received, and other information. The street address for Docket Operations (telephone 800-647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. For service information identified in this proposed 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. FOR FURTHER INFORMATION CONTACT: David Hatfield, Aviation Safety Engineer, Safety Management Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222-5110; email [email protected]. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to participate in this rulemaking by submitting written comments, data, or views. We also invite comments relating to the economic, environmental, energy, or federalism impacts that might result from adopting the proposals in this document. The most helpful comments reference a specific portion of the proposal, explain the reason for any recommended change, and include supporting data. To ensure the docket does not contain duplicate comments, commenters should send only one copy of written comments, or if comments are filed electronically, commenters should submit only one time. We will file in the docket all comments that we receive, as well as a report summarizing each substantive public contact with FAA personnel concerning this proposed rulemaking. Before acting on this proposal, we will consider all comments we receive on or before the closing date for comments. We will consider comments filed after the comment period has closed if it is possible to do so without incurring expense or delay. We may change this proposal in light of the comments we receive. Discussion EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD No. 2016-0134, dated July 8, 2016, to correct an unsafe condition on Airbus Helicopters Model MBB-BK 117 A-1, MBB-BK 117 A-3, MBB-BK 117 A-4, MBB-BK 117 B-1, MBB-BK 117 B-2, MBB-BK 117 C-1, MBB BK 117 C-2, and MBB-BK 117 C-2e helicopters. EASA advises that a crack was found in the T/R gearbox housing of a Model MBB-BK117 C-2 helicopter. According to EASA, investigations determined high vibrations caused by T/R imbalance were a contributing factor to the crack. EASA states that this condition, if not detected and corrected, could lead to the loss of the T/R gearbox and subsequent loss of control of the helicopter. As a result, the EASA AD requires repetitive inspections of the T/R gearbox housing and replacing the housing if a crack is found. FAA's Determination These helicopters have been approved by the aviation authority of Germany and are approved for operation in the United States. Pursuant to our bilateral agreement with Germany, EASA, its technical representative, has notified us of the unsafe condition described in its AD. We are proposing this AD because we evaluated all known relevant information and determined that an unsafe condition is likely to exist or develop on other products of the same type design. Related Service Information Under 1 CFR Part 51 We reviewed Airbus Helicopters Alert Service Bulletin (ASB) MBB- BK117-30A-119, Revision 0, dated May 24, 2016, for Model MBB-BK 117 A- 1, MBB-BK 117 A-3, MBB-BK 117 A-4, MBB-BK 117 B-1, MBB-BK 117 B-2, and MBB-BK 117 C-1 helicopters and ASB MBB-BK117 C-2-65A-007, Revision 0, dated May 24, 2016, for MBB-BK 117 C-2 helicopters. This service information specifies an initial and repetitive inspections of the T/R gearbox housing for cracks. 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. Proposed AD Requirements This proposed AD would require within 100 hours time-in-service (TIS) and thereafter at intervals not to exceed 100 hours TIS, cleaning and visually inspecting the T/R gearbox housing for a crack. If there is a crack, this proposed AD would require replacing the T/R gearbox before further flight. Differences Between This Proposed AD and the EASA AD The EASA AD applies to Model MBB-BK117 C-2e helicopters, and this proposed AD would not because it is not an FAA type-certificated model. The EASA AD allows a non-cumulative tolerance of 10 hours TIS for the inspections, and this proposed AD would not. The EASA AD requires performing the inspection after a certain maintenance action and before a T/R gearbox housing is installed, and this proposed AD would not. Costs of Compliance We estimate that this proposed AD would affect 176 helicopters of U.S. Registry and that labor costs average $85 a work-hour. Based on these estimates, we expect that inspecting the T/R gearbox would require 1 work-hour and no parts would be required for a cost of $85 per helicopter and $14,960 for the U.S. fleet per inspection cycle. Replacing the T/R gearbox would require 4.5 work-hours and parts would cost $69,219 for a cost of $69,602 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 products identified in this rulemaking action. [[Page 45580]] 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. For the reasons discussed, 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 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 proposed 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. 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): Airbus Helicopters Deutschland GmbH: Docket No. FAA-2017-1085; Product Identifier 2016-SW-094-AD. (a) Applicability This AD applies to Airbus Helicopters Deutschland GmbH Model MBB-BK 117 A-1, MBB-BK 117 A-3, MBB-BK 117 A-4, MBB-BK 117 B-1, MBB- BK 117 B-2, MBB-BK 117 C-1, and MBB-BK 117 C-2 helicopters, certificated in any category. (b) Unsafe Condition This AD defines the unsafe condition as a crack in a tail rotor (T/R) gearbox housing. This condition could result in the loss of the T/R gearbox and subsequent loss of helicopter control. (c) Comments Due Date We must receive comments by November 9, 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 Within 100 hours time-in-service (TIS) and thereafter at intervals not to exceed 100 hours TIS, clean and visually inspect the T/R gearbox housing for a crack in the area depicted in Figure 1 of Airbus Helicopters Alert Service Bulletin (ASB) MBB-BK117-30A- 119, Revision 0, dated May 24, 2016, or ASB MBB-BK117 C-2-65A-007, Revision 0, dated May 24, 2016, as applicable to your model helicopter. If there is a crack, replace the T/R gearbox before further flight. (f) Special Flight Permits Special flight permits are prohibited. (g) 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: David Hatfield, Aviation Safety Engineer, Safety Management 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. (h) Additional Information The subject of this AD is addressed in European Aviation Safety Agency (EASA) AD No. 2016-0134, dated July 8, 2016. You may view the EASA AD on the internet at http://www.regulations.gov in the AD Docket. (i) Subject Joint Aircraft Service Component (JASC) Code: 6520, Tail Rotor Gearbox. Issued in Fort Worth, Texas, on August 27, 2018. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2018-19436 Filed 9-7-18; 8:45 am] BILLING CODE 4910-13-P
![45578 Federal Register / Vol. 83, No. 175 / Monday, September 10, 2018 / Proposed Rules
Upon the presentation of persuasive C. The Bureau is interested in they are subject to a FOIA exemption or
test result data, the Bureau anticipates negotiating agreements that include the exclusion. To the extent the Bureau
permitting such extension requests for a following features. First, the State wishes to disclose information regarding
period at least as long as the period of sandbox must contain safeguards that trial disclosure programs, the terms of
the original waiver. The Bureau protect consumers from deception. such disclosure will be included in the
anticipates permitting longer extensions Second, the State sandbox must be 1032(e) Trial Disclosure Waiver: Terms
where the Bureau is considering limited in time or scope. Third, the and Conditions document. Consistent
amending disclosure requirements in a State sandbox entity must agree to with applicable law and its own rules,
manner consistent with the trial provide the Bureau with data to assist the Bureau will not seek to disclose any
disclosures in question.34 During the the Bureau in assessing whether the test data that would conflict with
time period pending a rule amendment, disclosure (or disclosures) used within consumers’ privacy interests.
the Bureau intends to consider means of the scope of the state sandbox improves Dated: August 30, 2018.
making the improved disclosure upon existing disclosures based upon
Mick Mulvaney,
available to other covered entities. cost effectiveness, consumer
understanding, or otherwise. Acting Director, Bureau of Consumer
E. Regulatory Coordination Financial Protection.
Alternatively, the State authority may
Subsection 1015 of the Dodd-Frank agree to periodically provide the Bureau [FR Doc. 2018–19385 Filed 9–7–18; 8:45 am]
Act instructs the Bureau to coordinate with such data regarding the disclosures BILLING CODE P
with . . . Federal agencies and State used by participants in the State
regulators, as appropriate, to promote sandbox.
consistent regulatory treatment of Under this Section, a State sandbox DEPARTMENT OF TRANSPORTATION
consumer financial and investment entity’s authorization under the TDP
products and services.35 Similarly, Policy will be limited to the parameters Federal Aviation Administration
subsection 1042(c) of the Act instructs of the State sandbox. If the entity seeks
the Bureau to provide guidance in order wider authorization under the TDP 14 CFR Part 39
to further coordinate actions with the Policy, it must submit an application [Docket No. FAA–2017–1085; Product
State attorneys general and other following the standard permission Identifier 2016–SW–094–AD]
regulators.36 The Bureau’s direction to process detailed in Sections A, B, and
coordinate includes coordinating C. Successful results from disclosures RIN 2120–AA64
circumstances where States have chosen used within a State or other jurisdiction
to limit their enforcement or other will be highly persuasive in supporting Airworthiness Directives; Airbus
regulatory authority. One method of such an application under the TDP Helicopters Deutschland GmbH
limiting such authority is through a Policy. Helicopters
State sandbox, or group of State Furthermore, the Bureau wishes to AGENCY: Federal Aviation
sandboxes, or other limited scope State coordinate with other regulators. To this Administration (FAA), DOT.
authorization program (‘‘State end, the Bureau intends to enter into
ACTION: Notice of proposed rulemaking
sandbox’’).37 The Bureau is interested in agreements whenever practicable to
entering into agreements with State coordinate permission to conduct trial (NPRM).
authorities designed to improve upon programs with similar programs SUMMARY: We propose to adopt a new
existing disclosure requirements 38 by operated by State, Federal, or airworthiness directive (AD) for Airbus
allowing covered persons to test international regulators. Helicopters Deutschland GmbH (Airbus
disclosures within the state sandbox. Helicopters) Model MBB–BK 117 A–1,
F. Bureau Disclosure of Information
Specifically, the Bureau expects that, in MBB–BK 117A–3, MBB–BK 117 A–4,
Regarding Trial Disclosure Programs
specified circumstances, such entities MBB–BK 117 B–1, MBB–BK 117 B–2,
could receive permission to conduct a The Bureau intends to publish notice
on its website of any trial disclosure MBB–BK 117 C–1, and MBB–BK 117 C–
trial disclosure program pursuant to the 2 helicopters. This proposed AD would
Bureau’s agreement with the State program permitted under Section C or
D.39 The notice will: (i) Identify the require repetitive inspections of the tail
authority, rather than through the rotor (T/R) gearbox housing. This
process described in Sections A, B, and company or companies conducting the
trial disclosure program; (ii) summarize proposed AD is prompted by a report
34 Rule amendments that follow successful trial the new disclosures to be used and the that a crack was found in a T/R gearbox
disclosure tests could continue to permit all duration of their intended use; and (iii) housing. The actions of this proposed
existing disclosure practices—allowing an
state that the waiver applies only to the AD are intended to address an unsafe
additional and alternative method of compliance,
testing company or companies in condition on these products.
rather than replacing existing requirements with
new ones. If the period of an extension were tied accordance with the permitted terms of DATES: We must receive comments on
to the Bureau’s consideration of amending relevant use. this proposed AD by November 9, 2018.
disclosure requirements and the Bureau announced Public disclosure of any other ADDRESSES: You may send comments by
it was discontinuing its plans to amend the
disclosure rules in question, such a waiver would information regarding trial disclosure any of the following methods:
be revised to be for a period of a fixed length or programs is governed by the Bureau’s • Federal eRulemaking Docket: Go to
revoked after reasonable notice to the testing Rule on Disclosure of Records and http://www.regulations.gov. Follow the
company(s).
Information.40 For example, the rule online instructions for sending your
daltland on DSKBBV9HB2PROD with PROPOSALS
35 12 U.S.C. 5495.
36 12 U.S.C. 5552(c).
requires the Bureau to make available comments electronically.
37 The concept of a regulatory sandbox is records requested by the public unless • Fax: 202–493–2251.
relatively new and does not have a precise, • Mail: Send comments to the U.S.
generally accepted definition. The term is used in 39 The Bureau will at minimum publish the
Department of Transportation, Docket
this Policy to refer to a regulatory structure where names of companies conducting trial disclosure Operations, M–30, West Building
a participant obtains limited or temporary access to programs pursuant to Section E, but reserves the
a market in exchange for reduced regulatory barriers discretion to negotiate any additional disclosure Ground Floor, Room W12–140, 1200
to entry or reduced regulatory uncertainty. terms with the corresponding regulator. New Jersey Avenue SE, Washington, DC
38 See note 26. 40 See 12 CFR 1070 et seq. 20590–0001.
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![45580 Federal Register / Vol. 83, No. 175 / Monday, September 10, 2018 / Proposed Rules
Regulatory Findings (c) Comments Due Date DEPARTMENT OF TRANSPORTATION
We determined that this proposed AD We must receive comments by November
would not have federalism implications 9, 2018. Federal Aviation Administration
under Executive Order 13132. This (d) Compliance
proposed AD would not have a 14 CFR Part 39
substantial direct effect on the States, on You are responsible for performing each
[Docket No. FAA–2017–1125; Product
the relationship between the national action required by this AD within the Identifier 2017–SW–078–AD]
Government and the States, or on the specified compliance time unless it has
already been accomplished prior to that time. RIN 2120–AA64
distribution of power and
responsibilities among the various (e) Required Actions Airworthiness Directives; MD
levels of government. Within 100 hours time-in-service (TIS) and Helicopters Inc. Helicopters
For the reasons discussed, I certify thereafter at intervals not to exceed 100 hours
this proposed regulation: AGENCY: Federal Aviation
TIS, clean and visually inspect the T/R
1. Is not a ‘‘significant regulatory Administration (FAA), DOT.
gearbox housing for a crack in the area
action’’ under Executive Order 12866; ACTION: Notice of proposed rulemaking
depicted in Figure 1 of Airbus Helicopters
2. Is not a ‘‘significant rule’’ under the (NPRM).
Alert Service Bulletin (ASB) MBB–BK117–
DOT Regulatory Policies and Procedures
30A–119, Revision 0, dated May 24, 2016, or
(44 FR 11034, February 26, 1979); SUMMARY: We propose to adopt a new
3. Will not affect intrastate aviation in ASB MBB–BK117 C–2–65A–007, Revision 0,
airworthiness directive (AD) for MD
Alaska to the extent that it justifies dated May 24, 2016, as applicable to your
Helicopters Inc. (MDHI) Model 600N
model helicopter. If there is a crack, replace
making a regulatory distinction; and helicopters. This proposed AD would
4. Will not have a significant the T/R gearbox before further flight.
require establishing a life limit for the
economic impact, positive or negative, (f) Special Flight Permits main rotor (M/R) blade upper control
on a substantial number of small entities Special flight permits are prohibited. collective/longitudinal link assembly
under the criteria of the Regulatory (link assembly). This proposed AD is
Flexibility Act. (g) Alternative Methods of Compliance prompted by the discovery that the life
We prepared an economic evaluation (AMOCs) limit was omitted from the maintenance
of the estimated costs to comply with (1) The Manager, Safety Management manual. The actions of this proposed
this proposed AD and placed it in the Section, Rotorcraft Standards Branch, FAA, AD are intended to prevent an unsafe
AD docket. may approve AMOCs for this AD. Send your condition on these products.
List of Subjects in 14 CFR Part 39 proposal to: David Hatfield, Aviation Safety DATES: We must receive comments on
Engineer, Safety Management Section, this proposed AD by November 9, 2018.
Air transportation, Aircraft, Aviation Rotorcraft Standards Branch, FAA, 10101
safety, Incorporation by reference, ADDRESSES: You may send comments by
Hillwood Pkwy., Fort Worth, TX 76177;
Safety. telephone (817) 222–5110; email any of the following methods:
david.hatfield@faa.gov. • Federal eRulemaking Docket: Go to
The Proposed Amendment http://www.regulations.gov. Follow the
(2) For operations conducted under a 14
Accordingly, under the authority CFR part 119 operating certificate or under online instructions for sending your
delegated to me by the Administrator, 14 CFR part 91, subpart K, we suggest that comments electronically.
the FAA proposes to amend 14 CFR part you notify your principal inspector, or • Fax: 202–493–2251.
39 as follows: lacking a principal inspector, the manager of • Mail: Send comments to the U.S.
the local flight standards district office or Department of Transportation, Docket
PART 39—AIRWORTHINESS certificate holding district office before Operations, M–30, West Building
DIRECTIVES operating any aircraft complying with this Ground Floor, Room W12–140, 1200
AD through an AMOC. New Jersey Avenue SE, Washington, DC
■ 1. The authority citation for part 39 20590–0001.
continues to read as follows: (h) Additional Information • Hand Delivery: Deliver to the
Authority: 49 U.S.C. 106(g), 40113, 44701. The subject of this AD is addressed in ‘‘Mail’’ address between 9 a.m. and 5
European Aviation Safety Agency (EASA) AD p.m., Monday through Friday, except
§ 39.13 [Amended] No. 2016–0134, dated July 8, 2016. You may Federal holidays.
■ 2. The FAA amends § 39.13 by adding view the EASA AD on the internet at http://
the following new airworthiness www.regulations.gov in the AD Docket.
Examining the AD Docket
directive (AD): You may examine the AD docket on
(i) Subject
Airbus Helicopters Deutschland GmbH: the internet at http://
Docket No. FAA–2017–1085; Product Joint Aircraft Service Component (JASC) www.regulations.gov by searching for
Identifier 2016–SW–094–AD. Code: 6520, Tail Rotor Gearbox. and locating Docket No. FAA–2017–
(a) Applicability 1125; or in person at the Docket
Issued in Fort Worth, Texas, on August 27,
Operations between 9 a.m. and 5 p.m.,
This AD applies to Airbus Helicopters 2018.
Deutschland GmbH Model MBB–BK 117 A– Monday through Friday, except Federal
Lance T. Gant, holidays. The AD docket contains this
1, MBB–BK 117 A–3, MBB–BK 117 A–4,
MBB–BK 117 B–1, MBB–BK 117 B–2, MBB– Director, Compliance & Airworthiness proposed AD, the economic evaluation,
daltland on DSKBBV9HB2PROD with PROPOSALS
BK 117 C–1, and MBB–BK 117 C–2 Division, Aircraft Certification Service. any comments received, and other
helicopters, certificated in any category. [FR Doc. 2018–19436 Filed 9–7–18; 8:45 am] information. The street address for the
(b) Unsafe Condition BILLING CODE 4910–13–P Docket Operations (telephone 800–647–
5527) is in the ADDRESSES section.
This AD defines the unsafe condition as a
crack in a tail rotor (T/R) gearbox housing. Comments will be available in the AD
This condition could result in the loss of the docket shortly after receipt.
T/R gearbox and subsequent loss of For service information identified in
helicopter control. this proposed rule, contact MD
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Document Created: 2018-09-08 00:43:01
Document Modified: 2018-09-08 00:43:01
| 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 November 9, 2018. | |
| Contact | David Hatfield, Aviation Safety Engineer, Safety Management Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222-5110; email [email protected] | |
| FR Citation | 83 FR 45578 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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