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Federal Register / Vol. 86, No. 112 / Monday, June 14, 2021 / Proposed Rules
1 For airplanes having S/N 5301 through 5665 inclusive: Bombardier Service Bulletin 60432030, dated June 30, 2020.
2 For airplanes having S/N 5701 through 5988 inclusive: Bombardier Service Bulletin 60532007, dated June 30, 2020.
3 For airplanes having S/N 6050 through 6999 inclusive: Bombardier Service Bulletin 65032004, dated June 30, 2020.

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h Repetitive Detailed Visual Inspections DVI
At the applicable compliance time specified in paragraphs h1 through 3 of this AD, perform the DVI for cracking and damage of the LH and RH MLG shock strut lower pins having part number P/N 19146
3, in accordance with paragraph 2.C., Part B, of the Accomplishment Instructions of the applicable service bulletin, as specified in paragraphs g1 through 3 of this AD.
Repeat thereafter at intervals not to exceed 400 FH or 24 months, whichever occurs first.
If the DVI coincides with a non-destructive testing NDT inspection required by paragraph i of this AD, the NDT inspection supersedes the DVI for that interval only. If the accumulated flight cycles FC of the MLG shock strut lower pin are not known, use the related MLG assembly accumulated FC to determine when to accomplish the actions required by this paragraph.
1 For airplanes with an original airworthiness certificate or original export certificate of airworthiness issued on or before the effective date of this AD and on which an MLG shock strut lower pin has accumulated fewer than 600 total FC on the pin as of the effective date of this AD: Before the accumulation of 750 total FC on the pin.
2 For airplanes with an original airworthiness certificate or original export certificate of airworthiness issued on or before the effective date of this AD and on which an MLG shock strut lower pin has accumulated 600 total FC or more on the pin as of the effective date of this AD: Within 150
FC after the effective date of this AD.
3 For airplanes with an original airworthiness certificate or original export certificate of airworthiness issued after the effective date of this AD: Before the accumulation of 750 total FC.
i Repetitive NDT Inspection At the applicable compliance time specified in paragraphs i1 through 4 of this AD: Perform the NDT for cracking and damage of the LH and RH MLG shock strut lower pins having P/N 191463, in accordance with paragraph 2.D., Part C, of the Accomplishment Instructions of the applicable service bulletin, as specified in paragraphs g1 through 3 of this AD.
Repeat thereafter at intervals not to exceed 900 FC. If the accumulated FC of the MLG
shock strut lower pin is not known, use the related MLG assembly accumulated FC to determine when to accomplish the actions required by this paragraph.
1 For airplanes with an original airworthiness certificate or original export certificate of airworthiness issued on or before the effective date of this AD and on which an MLG shock strut lower pin has accumulated fewer than 1,200 total FC on the
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pin as of the effective date of this AD: Before the accumulation of 1,500 total FC on the pin.
2 For airplanes with an original airworthiness certificate or original export certificate of airworthiness issued on or before the effective date of this AD and on which an MLG shock strut lower pin has accumulated 1,200 total FC or more but fewer than 2,000 total FC on the pin as of the effective date of this AD: Within 300 FC after the effective date of this AD, or before the accumulation of 2,200 total FC on the pin, whichever occurs first.
3 For airplanes with an original airworthiness certificate or original export certificate of airworthiness issued on or before the effective date of this AD and on which an MLG shock strut lower pin that has accumulated 2,000 total FC or more on the pin as of the effective date of this AD: Within 200 FC after the effective date of this AD.
4 For airplanes with an original airworthiness certificate or original export certificate of airworthiness issued after the effective date of this AD: Before the accumulation of 1,500 total FC.
j Replacement If, during any inspection required by this AD, any crack or damage of the MLG shock strut lower pin is detected, before further flight, replace the affected MLG shock strut lower pin with a new part in accordance with paragraph 2.E., Part D, of the Accomplishment Instructions of the applicable service bulletin, as specified in paragraphs g1 through 3 of this AD.
k Other FAA AD Provisions The following provisions also apply to this AD:
1 Alternative Methods of Compliance AMOCs: The Manager, New York ACO
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 responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the certification office, send it to ATTN: Program Manager, Continuing Operational Safety, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 5162287300; fax 5167945531. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
2 Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, New York ACO Branch, FAA; or Transport Canada Civil Aviation TCCA; or Bombardier, Inc.s TCCA Design Approval Organization DAO. If approved by the DAO, the approval must include the DAO-authorized signature.
l Related Information 1 Refer to Mandatory Continuing Airworthiness Information MCAI TCCA AD
CF202054R1, dated December 23, 2020, for related information. This MCAI may be
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found in the AD docket on the internet at https www.regulations.gov by searching for and locating Docket No. FAA20210462.
2 For more information about this AD, contact Chirayu Gupta, Aerospace Engineer, Mechanical Systems and Administrative Services Section, FAA, New York ACO
Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516228
7300; fax 5167945531; email 9-avs-nyacocos@faa.gov.
3 For service information identified in this AD, contact Bombardier, Inc., 200 CoteVertu Road West, Dorval, Quebec H4S 2A3, Canada; North America toll-free telephone 1
8665381247 or direct-dial telephone 1
5148552999; email ac.yul@
aero.bombardier.com; internet https
www.bombardier.com. You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 2062313195.
Issued on June 8, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202112351 Filed 61121; 8:45 am BILLING CODE 491013P

DEPARTMENT OF HOMELAND
SECURITY
Coast Guard 33 CFR Part 165
Docket Number USCG20210135
RIN 1625AA00

Safety Zones; Fireworks Displays, Air Shows and Swim Events in Captain of the Port Long Island Sound Zone Coast Guard, DHS.
Notice of proposed rulemaking.

AGENCY:
ACTION:

The Coast Guard is proposing to add one safety zone for the Dolan Family Labor Day Fireworks event on Oyster Bay, NY, and remove six other annual recurring marine events in Coast Guard Sector Long Island Sounds Captain of the Port Zone. This proposed rule is intended to expedite public information and to ensure the protection of the maritime public and event participants from the hazards associated with certain marine events. When enforced, the safety zones would restrict vessels from transiting the regulated area during annually recurring events.
We invite your comments on this proposed rulemaking.
DATES: Comments and related material must be received by the Coast Guard on or before July 14, 2021.
SUMMARY:

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