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Federal Register / Vol. 86, No. 161 / Tuesday, August 24, 2021 / Rules and Regulations ii If, on July 5, 2019 the effective date of AD 20191205, the rotating air HPT front seal has between 3,751 and 4,249 cycles, inclusive, since being reconfigured, remove the part from service within 250 cycles after July 5, 2019 the effective date of AD 2019
1205, before accumulating 4,275 cycles since being reconfigured, within 1,500 cycles since the last FPI of the rotating air HPT front seal, or before further flight after the effective date of this AD, whichever occurs later, and replace with a part eligible for installation.
iii For all remaining CFM CFM565C
model turbofan engines, remove the rotating air HPT front seal from service before accumulating 4,000 cycles since being reconfigured, or within 50 cycles after the effective date of this AD, whichever occurs later.
3 For CFM565B or CFM567B model turbofan engines with an affected rotating air HPT front seal that has been operated in a CFM565C model turbofan engine since being reconfigured, remove the rotating air HPT front seal from service using the cycle limits in paragraph g2 of this AD.
h Definition For the purpose of this AD, reconfigured occurs when a rotating air HPT front seal has been removed from the original HPT disk and re-assembled to a different HPT disk.
i Installation Prohibition After the effective date of this AD, do not assemble any rotating air HPT front seal with greater than 0 cycles since new, having a S/N listed in paragraph c of this AD onto a HPT disk unless it is the same S/N HPT
disk on which it has previously been assembled.
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 Related Information. You may email your request to: ANE-AD-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.

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k Related Information For more information about this AD, contact Christopher McGuire, Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781
2387120; fax: 781 2387199; email:
Chris.McGuire@faa.gov.
l Material Incorporated by Reference None.

VerDate Sep<11>2014

15:55 Aug 23, 2021

Jkt 253001

Issued on July 29, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202118165 Filed 82321; 8:45 am BILLING CODE 491013P

DEPARTMENT OF HOMELAND
SAFETY
Coast Guard 33 CFR Part 165
Docket Number USCG20210656
RIN 1625AA00

Safety Zone; Solo Swim, Rhode Island Sound, Block Island, RI
Coast Guard, DHS.
Temporary final rule.

AGENCY:
ACTION:

The Coast Guard is establishing a temporary safety zone on the navigable waters of Rhode Island Sound within 500 yards of the swimmer crossing the channel from Block Island, Rhode Island to East Matunuck, Rhode Island. This safety zone is needed to protect the swimmer, event sponsors safety vessels, and others in the maritime community from the safety hazards that may arise during his event.
When enforced, entry of vessels or persons into this zone is prohibited unless specifically authorized by the Captain of the Port Sector Southeastern New England or a designated representative.

SUMMARY:

This rule is effective from 6 a.m.
on August 23, 2021, through 2 p.m. on August 25, 2021. But it will only be subject to enforcement from 6 a.m. to 2
p.m. on one of these dates.
ADDRESSES: To view documents mentioned in this preamble as being available in the docket, go to http
www.regulations.gov, type USCG2021
0656 in the SEARCH box and click SEARCH. Click on Open Docket Folder on the line associated with this rule.
FOR FURTHER INFORMATION CONTACT: If you have questions on this rule, call or email Petty Officer Joshua Herriott, Sector Southeastern New England, U.S.
Coast Guard; telephone 401 4352342, email SENEWWM@uscg.mil.
SUPPLEMENTARY INFORMATION:
DATES:

I. Table of Abbreviations CFR Code of Federal Regulations COTP Captain of the Port Sector Southeastern New England DHS Department of Homeland Safety FR Federal Register
PO 00000

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47217

NPRM Notice of Proposed Rulemaking Section U.S.C. United States Code
II. Background Information and Regulatory History The Coast Guard is issuing this temporary rule without prior notice and opportunity to comment pursuant to authority under section 4a of the Administrative Procedure Act APA 5
U.S.C. 553b. This provision authorizes an agency to issue a rule without prior notice and opportunity to comment when the agency for good cause finds that those procedures are impracticable. Under 5 U.S.C. 553bB, the Coast Guard finds that good cause exists for not publishing a notice of proposed rulemaking NPRM with respect to this rule because publishing an NPRM would be impracticable and contrary to the public interest. The Coast Guard was notified of the swim event from Block Island, Rhode Island to East Matunuck, Rhode Island without ample time to allow for a reasonable comment period and consider those comments before issuing the rule. The safety zone must be established by August 23, 2021, to protect the swimmer, as well as spectators and areas in the area during the Solo Swim event.
Under 5 U.S.C. 553d3, the Coast Guard finds that good cause exists for making this rule effective less than 30
days after publication in the Federal Register. Delaying the effective date of this rule would be impracticable because action is needed to protect the swimmer and ensure the safety in the navigable waters within the safety zone during the Solo Swim event.
III. Legal Authority and Need for Rule The Coast Guard is issuing this rule under authority in 46 U.S.C. 70034
previously 33 U.S.C. 1231. The Captain of the Port Sector Southeastern New England COTP has determined that potential hazards exist while the swimmer is crossing the recommended vessel route. This rule is needed to protect personnel, vessels, and the marine environment in the navigable waters within the safety zone.
IV. Discussion of the Rule The Coast Guard is establishing a temporary safety zone in Rhode Island Sound for all navigable waters within 500 yards of the swimmer crossing the recommended vessel route at approximately 4117.5N, 7132.0W, during his participation in the Solo Swim from Block Island, Rhode Island to East Matunuck, Rhode Island. No vessel or person will be permitted to
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