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Federal Register / Vol. 86, No. 121 / Monday, June 28, 2021 / Proposed Rules
1 Is not a significant regulatory action under Executive Order 12866, 2 Would not affect intrastate aviation in Alaska, and 3 Would 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 39AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:

Authority: 49 U.S.C. 106g, 40113, 44701.
39.13

Amended
2. The FAA amends 39.13 by adding the following new airworthiness directive:

Bell Textron Canada Limited Type Certificate Previously Held by Bell Helicopter Textron Canada Limited:
Docket No. FAA20210513; Project Identifier 2018SW116AD.
a Comments Due Date The FAA must receive comments on this airworthiness directive AD by August 12, 2021.
b Affected ADs None.
c Applicability This AD applies to Bell Textron Canada Limited type certificate previously held by Bell Helicopter Textron Canada Limited Model 429 helicopters, certificated in any category, serial numbers 57001 and subsequent.

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d Subject Joint Aircraft Service Component JASC
Code: 6500, Tail Rotor Drive System; and 6520, Tail Rotor Gearbox.
e Unsafe Condition This AD was prompted by reports of tail rotor gearbox assemblies found loose on the gearbox support. The FAA is issuing this AD
address tail rotor gearbox assemblies found loose on the gearbox support. The unsafe condition, if not addressed, could result in structural damage and possible loss of control of the helicopter.
f Compliance Comply with this AD within the compliance times specified, unless already done.

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g Required Actions Within 12 months after the effective date of this AD; or at the next scheduled 200hours time-in-service TIS or 12-month inspection, whichever occurs first, do a torque check of the tail rotor gearbox attachment hardware, in accordance with the Accomplishment Instructions, paragraph 2., of Bell Alert Service Bulletin 4291841, dated July 24, 2018. Repeat the torque check thereafter at intervals not to exceed 200 hours TIS or 12 months, whichever occurs first.
h Corrective Actions If, during any torque check required by paragraph g of this AD, any tail rotor gearbox attachment moves during any torque check, repeat the torque check specified in paragraph g of this AD at intervals no less than 10 hours TIS and not to exceed 25 hours TIS until the torque stabilizes on all the nuts.
Stabilization has occurred when, at the next torque check, the value has remained within the specified acceptable limits 160 to 200
inch-pounds in-lbs or 19 to 22 newton meters Nms, inclusive, preventing movement of the gearbox housing. After the torque stabilizes on all the nuts, the repetitive torque checks specified in paragraph g of this AD are still required.
i Credit for Previous Actions This paragraph provides credit for the initial torque check required by paragraph g of this AD, if that action was done before the effective date of this AD as required by paragraph f2 of AD 20181651, Amendment 3919421 83 FR 53171, October 22, 2018.
j Alternative Methods of Compliance AMOCs 1 The Manager, International Validation 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 International Validation Branch, send it to the attention of the person identified in paragraph k1 of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov.
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 Darren Gassetto, Aerospace Engineer, COS Program Management Section, FAA, Operational Safety Branch, Compliance &
Airworthiness Division, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516 2287323; email Darren.Gassetto@faa.gov.
2 For service information identified in this AD, contact Bell Textron Canada Limited, 12,800 Rue de lAvenir, Mirabel, Quebec J7J 1R4, Canada; telephone 1450
4372862 or 18003638023; fax 1450
4330272; email productsupport@

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bellflight.com; or at https
www.bellflight.com/support/contact-support.
You may view this referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101
Hillwood Pkwy., Room 6N321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 817 222
5110.
3 The subject of this AD is addressed in Transport Canada AD CF201835, dated December 19, 2018. You may view the Transport Canada AD on the internet at https www.regulations.gov in Docket No.
FAA20210513.
Issued on June 21, 2021.
Ross Landes, Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202113644 Filed 62521; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 71
Docket No. FAA20210424; Airspace Docket No. 21ACE13
RIN 2120AA66

Proposed Amendment of Class E
Airspace; Malden, MO
Federal Aviation Administration FAA, DOT.
ACTION: Notice of proposed rulemaking NPRM.
AGENCY:

This action proposes to amend Class E airspace extending upward from 700 feet above the surface at Malden Regional Airport, formerly Malden Municipal Airport, Malden, MO. The FAA is proposing this action as a result of an airspace review caused by the decommissioning of the Malden Very High Frequency Omnidirectional Range VOR collocated with Tactical Air Navigation TACAN VORTAC
navigation aid as part of the VOR
Minimum Operational Network MON
Program. Controlled airspace is necessary for the safety and management of instrument flight rules IFR in the area.
DATES: Comments must be received on or before August 12, 2021.
ADDRESSES: Send comments on this proposal to: The U.S. Department of Transportation, Docket Operations, 1200
New Jersey Avenue SE, West Building Ground Floor, Room W12140, Washington, DC 205900001;
Telephone: 800 6475527, or 202
3669826. You must identify the Docket No. FAA20210424; Airspace Docket SUMMARY:

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