Federal Register / Vol. 86, No. 112 / Monday, June 14, 2021 / Proposed Rules 31453 

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. 

The FAA is 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. 

Regulatory Findings 

The FAA 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 above, I 

certify this proposed regulation: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, and 

(3) 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. 

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 

■ 1. The authority citation for part 39 

continues to read as follows: 

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

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

Leonardo S.p.a.: Docket No. FAA–2021– 

0461; Project Identifier MCAI–2021– 

00156–R. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by July 29, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Leonardo S.p.a. 

Model AB139 and AW139 helicopters, 

certificated in any category. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 2400, Electrical Power System. 

(e) Unsafe Condition 

This AD was prompted by a report of a 

short circuit caused by chafing of the 

electrical wiring in the overhead panel. The 

FAA is issuing this AD to address a short 

circuit caused by chafing of the electrical 

wiring in the overhead panel, which could 

cause damaged electrical wiring, possible fire 

in the overhead panel, and loss of control of 

the helicopter. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Except as specified in paragraph (h) of this 

AD: Comply with all required actions and 

compliance times specified in, and in 

accordance with, European Union Aviation 

Safety Agency (EASA) AD 2021–0044, dated 

February 5, 2021 (EASA AD 2021–0044). 

(h) Exceptions to EASA AD 2021–0044 

(1) Where EASA AD 2021–0044 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) The ‘‘Remarks’’ section of EASA AD 

2021–0044 does not apply to this AD. 

(3) Where EASA AD 2021–0044 refers to 

flight hours (FH), this AD requires using 

hours time-in-service. 

(4) Where paragraphs (3) and (5) of EASA 

AD 2021–0044 refer to ‘‘any discrepancy,’’ 

for this AD, discrepancies include chafing of 

the cable harnesses or incorrect clearance 

between the anchor nuts/screws and the 

cable harnesses, incorrect length of the 

screws, inadequately bonded supports, and 

poor condition of the white protective tape. 

(i) No Reporting Requirement 

Although EASA AD 2021–0044 and the 

service information referenced in EASA AD 

2021–0044 specify to submit certain 

information to the manufacturer, this AD 

does not include that requirement. 

(j) Special Flight Permit 

Special flight permits may be issued in 

accordance with 14 CFR 21.197 and 21.199 

to operate the helicopter to a location where 

the helicopter can be modified (if the 

operator elects to do so), provided the flight 

is straight, level, and avoids areas of known 

turbulence. 

(k) 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 (l)(2) 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. 

(l) Related Information 

(1) For EASA AD 2021–0044, contact the 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; phone: +49 221 8999 000; 

email: ADs@easa.europa.eu; internet: 

www.easa.europa.eu. You may find this 

EASA AD on the EASA website at https://

ad.easa.europa.eu. You may view this 

material at the FAA, Office of the Regional 

Counsel, Southwest Region, 10101 Hillwood 

Pkwy., Room 6N–321, Fort Worth, TX 76177. 

For information on the availability of this 

material at the FAA, call 817–222–5110. This 

material may be found in the AD docket at 

https://www.regulations.gov by searching for 

and locating Docket No. FAA–2021–0461. 

(2) For more information about this AD, 

contact Jacob Fitch, Aerospace Engineer, COS 

Program Management Section, Operational 

Safety Branch, Compliance & Airworthiness 

Division, FAA, 10101 Hillwood Pkwy., Fort 

Worth, TX 76177; phone: (817) 222–4130; 

email: jacob.fitch@faa.gov. 

Issued on June 7, 2021. 

Ross Landes, 

Deputy Director for Regulatory Operations, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–12359 Filed 6–11–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0462; Project 

Identifier MCAI–2020–01714–T] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc., Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 


lotter on DSK11XQN23PROD with PROPOSALS1
31454 Federal Register / Vol. 86, No. 112 / Monday, June 14, 2021 / Proposed Rules 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Bombardier, Inc., CL–600–2B16 

(604 Variant) airplanes. This proposed 

AD was prompted by multiple reports of 

cracking of the main landing gear (MLG) 

shock strut lower pin. This proposed 

AD would require repetitive lubrication 

and repetitive detailed visual 

inspections (DVI) and non-destructive 

test (NDT) inspections of the MLG shock 

strut lower pins, and replacement if 

necessary. The FAA is proposing this 

AD to address the unsafe condition on 

these products. 

DATES: The FAA must receive comments 

on this proposed AD by July 29, 2021. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

https://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: 202–493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE, Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this NPRM, contact Bombardier, Inc., 

200 Coˆte-Vertu Road West, Dorval, 

Que ́bec H4S 2A3, Canada; North 

America toll-free telephone 1–866–538– 

1247 or direct-dial telephone 1–514– 

855–2999; 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 206–231–3195. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0462; 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 

NPRM, any comments received, and 

other information. The street address for 

Docket Operations is listed above. 

FOR FURTHER INFORMATION 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 

516–228–7300; fax 516–794–5531; email 

9-avs-nyaco-cos@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2021–0462; Project Identifier 

MCAI–2020–01714–T’’ at the beginning 

of your comments. The most helpful 

comments reference a specific portion of 

the proposal, explain the reason for any 

recommended change, and include 

supporting data. The FAA will consider 

all comments received by the closing 

date and may amend the proposal 

because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this NPRM. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 

comments as CBI. Please mark each 

page of your submission containing CBI 

as ‘‘PROPIN.’’ The FAA will treat such 

marked submissions as confidential 

under the FOIA, and they will not be 

placed in the public docket of this 

NPRM. Submissions containing CBI 

should be sent to Chirayu Gupta, 

Aerospace Engineer, Mechanical 

Systems and Administrative Services 

Section, FAA, New York ACO Branch, 

1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; telephone 516– 

228–7300; fax 516–794–5531; email 9- 

avs-nyaco-cos@faa.gov. Any 

commentary that the FAA receives 

which is not specifically designated as 

CBI will be placed in the public docket 

for this rulemaking. 

Background 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued TCCA AD CF– 

2020–54R1, dated December 23, 2020 

(TCCA AD CF–2020–54R1) (also 

referred to after this as the Mandatory 

Continuing Airworthiness Information, 

or the MCAI), to correct an unsafe 

condition for certain Bombardier, Inc., 

CL–600–2B16 (604 Variant) airplanes. 

You may examine the MCAI in the AD 

docket at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–0462. 

This proposed AD was prompted by 

multiple reports of cracking of the MLG 

shock strut lower pin part number (P/N) 

19146–3. The subsequent investigation 

concluded that the friction torque when 

the shock strut is under compression 

loading, causes the pin anti-rotation 

tangs to become loaded beyond their 

load carrying capability. This overload 

condition can result in pin fracture 

originating at the base of the pin antirotation tang. Inadequate lubrication 

aggravates the condition. The FAA is 

proposing this AD to address cracking of 

the MLG shock strut lower pin. If not 

addressed, this condition could result in 

structural failure of one or both MLG. 

See the MCAI for additional background 

information. 

Related Service Information Under 1 

CFR Part 51 

Bombardier, Inc., has issued the 

following service information: 

• Service Bulletin 604–32–030, dated 

June 30, 2020. 

• Service Bulletin 605–32–007, dated 

June 30, 2020. 

• Service Bulletin 650–32–004, dated 

June 30, 2020. 

This service information describes 

procedures for lubricating, inspecting 

(DVI and NDT inspections for cracking 

and damage, including fracture of the 

MLG shock strut lower pin at the pin 

rotation tang location), and replacing 

the MLG shock strut lower pin. These 

documents are distinct since they apply 

to different airplane configurations. 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. 

FAA’s Determination 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to the 

FAA’s bilateral agreement with the State 

of Design Authority, the FAA has been 

notified of the unsafe condition 


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Federal Register / Vol. 86, No. 112 / Monday, June 14, 2021 / Proposed Rules 31455 

described in the MCAI and service 

information referenced above. The FAA 

is proposing this AD because the FAA 

evaluated all the relevant information 

and determined the unsafe condition 

described previously is likely to exist or 

develop on other products of the same 

type design. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require 

accomplishing the actions specified in 

the service information already 

described. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 433 

airplanes of U.S. registry. The FAA 

estimates the following costs to comply 

with this proposed AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

7 work-hours × $85 per hour = $595 .......................................................................................... $0 $595 $257,635 

The FAA estimates the following 

costs to do any necessary on-condition 

actions that would be required based on 

the results of any required actions. The 

FAA has no way of determining the 

number of aircraft that might need these 

on-condition actions: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Labor cost Parts cost Cost per 

product 

6 work-hours × $85 per hour = $510 ...................................................................................................................... $2,435 $2,945 

The FAA has included all known 

costs in its cost estimate. According to 

the manufacturer, however, some or all 

of the costs of this proposed AD may be 

covered under warranty, thereby 

reducing the cost impact on affected 

operators. 

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. 

The FAA is 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. 

Regulatory Findings 

The FAA 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 above, I 

certify this proposed regulation: 

(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 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

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

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

Bombardier, Inc.: Docket No. FAA–2021– 

0462; Project Identifier MCAI–2020– 

01714–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by July 29, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bombardier, Inc., 

Model CL–600–2B16 (604 Variant) airplanes, 

serial numbers (S/N) 5301 through 5665 

inclusive, 5701 through 5988 inclusive, and 

6050 through 6999 inclusive, certificated in 

any category. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 32, Landing gear. 

(e) Unsafe Condition 

This AD was prompted by multiple reports 

of cracking of the main landing gear (MLG) 

shock strut lower pin. The FAA is issuing 

this AD to address cracking of the MLG shock 

strut lower pin. If not addressed, this 

condition could result in structural failure of 

one or both MLG. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Repetitive Lubrication 

Within 200 flight hours (FH) or 12 months 

after the effective date of this AD, whichever 

occurs first, lubricate the left-hand (LH) and 

right-hand (RH) MLG shock strut lower pins 

having part number (P/N) 19146–3, in 

accordance with paragraph 2.B., ‘‘Part A,’’ of 

the Accomplishment Instructions of the 

applicable service bulletin, as specified in 

paragraphs (g)(1) through (3) of this AD. 

Repeat thereafter at intervals not to exceed 

200 FH or 12 months, whichever occurs first. 


lotter on DSK11XQN23PROD with PROPOSALS1
31456 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 

604–32–030, dated June 30, 2020. 

(2) For airplanes having S/N 5701 through 

5988 inclusive: Bombardier Service Bulletin 

605–32–007, dated June 30, 2020. 

(3) For airplanes having S/N 6050 through 

6999 inclusive: Bombardier Service Bulletin 

650–32–004, dated June 30, 2020. 

(h) Repetitive Detailed Visual Inspections 

(DVI) 

At the applicable compliance time 

specified in paragraphs (h)(1) 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 (g)(1) 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 (i)(1) 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 19146–3, in 

accordance with paragraph 2.D., ‘‘Part C,’’ of 

the Accomplishment Instructions of the 

applicable service bulletin, as specified in 

paragraphs (g)(1) 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 

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 (g)(1) 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 

516–228–7300; fax 516–794–5531. 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 

CF–2020–54R1, dated December 23, 2020, for 

related information. This MCAI may be 

found in the AD docket on the internet at 

https://www.regulations.gov by searching for 

and locating Docket No. FAA–2021–0462. 

(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 516–228– 

7300; fax 516–794–5531; email 9-avs-nyacocos@faa.gov. 

(3) For service information identified in 

this AD, contact Bombardier, Inc., 200 CoˆteVertu Road West, Dorval, Que ́bec H4S 2A3, 

Canada; North America toll-free telephone 1– 

866–538–1247 or direct-dial telephone 1– 

514–855–2999; 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 

206–231–3195. 

Issued on June 8, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–12351 Filed 6–11–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HOMELAND 

SECURITY 

Coast Guard 

33 CFR Part 165 

[Docket Number USCG–2021–0135] 

RIN 1625–AA00 

Safety Zones; Fireworks Displays, Air 

Shows and Swim Events in Captain of 

the Port Long Island Sound Zone 

AGENCY: Coast Guard, DHS. 

ACTION: Notice of proposed rulemaking. 

SUMMARY: 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 Sound’s 

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. 


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