Federal Register / Vol. 87, No. 116 / Thursday, June 16, 2022 / Proposed Rules 36269 

stress, and possible reduced structural 

integrity of the airplane. 

(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 2021–0281, dated 

December 17, 2021 (EASA AD 2021–0281). 

(h) Exceptions to EASA AD 2021–0281 

(1) Where EASA AD 2021–0281 refers to 

October 1, 2020 (the effective date of EASA 

AD 2020–0205), this AD requires using 

November 5, 2020 (the effective date of AD 

2020–22–03). 

(2) Where EASA AD 2021–0281 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(3) Where paragraph (1) of EASA AD 2021– 

0281 specifies to ‘‘inform all flight crews, 

and, thereafter, operate the aeroplane 

accordingly,’’ this AD does not require those 

actions as those actions are already required 

by existing FAA operating regulations. 

(4) Where paragraphs (6) and (7) of EASA 

AD 2021–0281 specifies actions if ‘‘any 

discrepancies are detected,’’ for this AD 

discrepancies include failures related to an 

over-temperature situation, hidden failures in 

equipment for a ‘‘not isolated overtemperature’’ failure condition, cracking on 

the exchanger outlet temperature sensor, or 

dual drift in the exchanger outlet temperature 

sensor. 

(5) Where paragraph (11) of EASA AD 

2021–0281 specifies that an airplane with 

certain modifications is compliant with ‘‘the 

requirements of paragraph (2) of EASA AD 

2020–0077,’’ for this AD use ‘‘for the 

corresponding requirements of paragraph (2) 

of EASA AD 2020–0077 that are required by 

paragraph (g) of AD 2020–17–16, 

Amendment 39–21221 (85 FR 54900, 

September 3, 2020).’’ 

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

2021–0281 does not apply to this AD. 

(i) No Reporting Requirements 

Although the service information 

referenced in EASA AD 2021–0281 specifies 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(j) Additional FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, Large Aircraft 

Section, 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 responsible Flight 

Standards Office, as appropriate. If sending 

information directly to the Large Aircraft 

Section, International Validation Branch/ 

manager of the certification office, send it to 

the attention of the person identified in 

paragraph (k)(2) of this AD. Information may 

be emailed to: 9-AVS-AIR-730-AMOC@

faa.gov. 

(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, Large Aircraft Section, 

International Validation Branch, FAA; or 

EASA; or Airbus SAS’s EASA Design 

Organization Approval (DOA). If approved by 

the DOA, the approval must include the 

DOA-authorized signature. 

(3) Required for Compliance (RC): Except 

as required by paragraph (j)(2) of this AD, if 

any service information referenced in EASA 

AD 2021–0281 contains paragraphs that are 

labeled as RC, the instructions in RC 

paragraphs, including subparagraphs under 

an RC paragraph, must be done to comply 

with this AD; any paragraphs, including 

subparagraphs under those paragraphs, that 

are not identified as RC are recommended. 

The instructions in paragraphs, including 

subparagraphs under those paragraphs, not 

identified as RC may be deviated from using 

accepted methods in accordance with the 

operator’s maintenance or inspection 

program without obtaining approval of an 

AMOC, provided the instructions identified 

as RC can be done and the airplane can be 

put back in an airworthy condition. Any 

substitutions or changes to instructions 

identified as RC require approval of an 

AMOC. 

(k) Related Information 

(1) For EASA AD 2021–0281, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +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, 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. This 

material may be found in the AD docket at 

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

and locating Docket No. FAA–2022–0680. 

(2) For more information about this AD, 

contact Vladimir Ulyanov, Aerospace 

Engineer, Large Aircraft Section, 

International Validation Branch, FAA, 2200 

South 216th St., Des Moines, WA 98198; 

telephone and fax: 206–231–3229; email: 

Vladimir.Ulyanov@faa.gov. 

Issued on June 10, 2022. 

Christina Underwood, 

Acting Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–12936 Filed 6–15–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0679; Project 

Identifier MCAI–2021–01213–T] 

RIN 2120–AA64 

Airworthiness Directives; MHI RJ 

Aviation ULC (Type Certificate 

Previously Held by Bombardier, Inc.) 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for all 

MHI RJ Aviation ULC Model CL–600– 

2C10 (Regional Jet Series 700, 701 & 

702) airplanes, Model CL–600–2C11 

(Regional Jet Series 550) airplanes, 

Model CL–600–2D15 (Regional Jet 

Series 705) airplanes, Model CL–600– 

2D24 (Regional Jet Series 900) airplanes, 

and Model CL–600–2E25 (Regional Jet 

Series 1000) airplanes. This proposed 

AD was prompted by a determination 

that new and more restrictive 

airworthiness limitations are necessary. 

This proposed AD would require 

revising the existing maintenance or 

inspection program, as applicable, to 

incorporate new and more restrictive 

airworthiness limitations. 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 August 1, 2022. 

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 MHI RJ Aviation 

Group, Customer Response Center, 3655 

Ave. des Grandes-Tourelles, Suite 110, 

Boisbriand, Que ́bec J7H 0E2 Canada; 

North America toll-free telephone 833– 

990–7272 or direct-dial telephone 450– 

990–7272; fax 514–855–8501; email 

thd.crj@mhirj.com; internet https:// 


khammond on DSKJM1Z7X2PROD with PROPOSALS
36270 Federal Register / Vol. 87, No. 116 / Thursday, June 16, 2022 / Proposed Rules 

mhirj.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 on 

the internet at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2022– 

0679; 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. 

Comments will be available in the AD 

docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Chirayu A. Gupta, Aerospace Engineer, 

Airframe and Propulsion Section, FAA, 

New York ACO Branch, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 

11590; telephone 516–228–7300; 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–2022–0679; Project Identifier 

MCAI–2021–01213–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 proposed 

AD. 

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 A. Gupta, 

Aerospace Engineer, Airframe and 

Propulsion Section, FAA, New York 

ACO Branch, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 

telephone 516–228–7300; email 9-avsnyaco-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. 

Discussion 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued TCCA AD CF– 

2021–38, dated November 5, 2021 

(TCCA AD CF–2021–38) (also referred 

to after this as the Mandatory 

Continuing Airworthiness Information, 

or the MCAI), to correct an unsafe 

condition for all MHI RJ Aviation ULC 

Model CL–600–2C10 (Regional Jet 

Series 700, 701 & 702) airplanes, Model 

CL–600–2C11 (Regional Jet Series 550) 

airplanes, Model CL–600–2D15 

(Regional Jet Series 705) airplanes, 

Model CL–600–2D24 (Regional Jet 

Series 900) airplanes, and Model CL– 

600–2E25 (Regional Jet Series 1000) 

airplanes. You may examine the MCAI 

in the AD docket on the internet at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0679. 

This proposed AD was prompted by 

a determination that new or more 

restrictive airworthiness limitations are 

necessary. In-service reports of 

emergency ram air valve (ERAV) part 

number (P/N) GG670–95019–1 stuck in 

closed or partially open positions have 

been received. Further investigation 

revealed the ERAV is failing due to 

corrosion on multiple sub-components, 

causing an increase in the breakaway 

torque that cannot be overcome by the 

valve actuator. Based on these findings, 

MHI RJ Aviation ULC issued CRJ700/ 

900/1000 Series Regional Jet Temporary 

Revision (TR) ALI–0744, dated April 27, 

2021, which reduced the interval for the 

existing Maintenance Review Board 

(MRB) Task 215000–201, Operational 

Check of the Ram Air Shutoff Valve; and 

CRJ700/900/1000 Series Regional Jet TR 

ALI–0745, dated April 27, 2021, which 

added new MRB Task 215000–204, 

Detailed Inspection of the Pack 

Discharge and Ram Air Supply Duct. 

The FAA is proposing this AD to 

address in-service reports of ERAV P/N 

GG670–95019–1 stuck in closed or 

partially open positions, which if not 

corrected, could result in a complete 

loss of outside air supply, leading to an 

increase in flight deck and cabin 

temperatures and a possible increased 

level of contaminated air (carbon 

monoxide, carbon dioxide, or ozone). 

See the MCAI for additional background 

information. 

Related Service Information Under 1 

CFR Part 51 

MHI RJ Aviation issued the following 

TRs, which describe airworthiness 

limitations for the air conditioning 

system. 

• CRJ700/900/1000 Series Regional 

Jet TR ALI–0744, dated April 27, 2021, 

specifies a reduced interval for the 

operational check of the ram air shutoff 

valve. 

• CRJ700/900/1000 Series Regional 

Jet TR ALI–0745, dated April 27, 2021, 

describes a new MRB task for inspecting 

the pack discharge and ram air supply 

duct. 

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 

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 Requirements of This NPRM 

This proposed AD would require 

revising the existing maintenance or 

inspection program, as applicable, to 

incorporate new or more restrictive 

airworthiness limitations. 

This proposed AD would require 

revisions to certain operator 

maintenance documents to include new 

actions (e.g., inspections). Compliance 

with these actions is required by 14 CFR 

91.403(c). For airplanes that have been 

previously modified, altered, or repaired 

in the areas addressed by this proposed 


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Federal Register / Vol. 87, No. 116 / Thursday, June 16, 2022 / Proposed Rules 36271 

AD, the operator may not be able to 

accomplish the actions described in the 

revisions. In this situation, to comply 

with 14 CFR 91.403(c), the operator 

must request approval for an alternative 

method of compliance according to 

paragraph (i)(1) of this proposed AD. 

Costs of Compliance 

The FAA estimates that this proposed 

AD affects 1,158 airplanes of U.S. 

registry. The FAA estimates the 

following costs to comply with this 

proposed AD: 

The FAA has determined that revising 

the maintenance or inspection program 

takes an average of 90 work-hours per 

operator, although the agency 

recognizes that this number may vary 

from operator to operator. Since 

operators incorporate maintenance or 

inspection program changes for their 

affected fleet(s), the FAA has 

determined that a per-operator estimate 

is more accurate than a per-airplane 

estimate. Therefore, the agency 

estimates the average total cost per 

operator to be $7,650 (90 work-hours × 

$85 per work-hour). 

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: 

MHI RJ Aviation ULC (Type Certificate 

Previously Held by Bombardier, Inc.): 

Docket No. FAA–2022–0679; Project 

Identifier MCAI–2021–01213–T. 

(a) Comments Due Date 

The FAA must receive comments by 

August 1, 2022. 

(b) Affected Airworthiness Directives (ADs) 

None. 

(c) Applicability 

This AD applies to all MHI RJ Aviation 

ULC airplanes, certificated in any category, 

identified in paragraphs (c)(1) through (5) of 

this AD. 

(1) Model CL–600–2C10 (Regional Jet 

Series 700, 701 & 702) airplanes. 

(2) Model CL–600–2C11 (Regional Jet 

Series 550) airplanes. 

(3) Model CL–600–2D15 (Regional Jet 

Series 705) airplanes. 

(4) Model CL–600–2D24 (Regional Jet 

Series 900) airplanes. 

(5) Model CL–600–2E25 (Regional Jet 

Series 1000) airplanes. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 21, Air conditioning. 

(e) Reason 

This AD was prompted by a determination 

that new or more restrictive airworthiness 

limitations are necessary. The FAA is issuing 

this AD to address in-service reports of 

emergency ram air valve part number 

GG670–95019–1 stuck in closed or partially 

open positions, which, if not corrected could 

result in a complete loss of outside air 

supply, leading to an increase in flight deck 

and cabin temperatures and a possible 

increased level of contaminated air (carbon 

monoxide, carbon dioxide, or ozone). 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Maintenance or Inspection Program 

Revision 

(1) Within 90 days after the effective date 

of this AD, revise the existing maintenance 

or inspection program, as applicable, to 

incorporate the information specified in 

[MHI RJ] CRJ700/900/1000 Series Regional 

Jet Series Temporary Revision (TR) ALI– 

0744, dated April 27, 2021. The initial 

compliance time for doing the task is at the 

applicable time specified in paragraph 

(g)(1)(i) or (ii) of this AD, or within 90 days 

after the effective date of this AD, whichever 

occurs later. 

(i) For airplanes that have accumulated less 

than 1,800 flight hours since the last 

operational check of the ram air shutoff valve 

was performed as specified in Maintenance 

Review Board (MRB) Task 215000–201, and 

for airplanes that have accumulated less than 

1,800 flight hours from the date of issuance 

of the original airworthiness certificate or 

original export certificate of airworthiness: 

Within 3 months after the effective date of 

this AD, or before accumulating 1,800 total 

flight hours, whichever occurs later. 

(ii) For airplanes that have accumulated 

1,800 flight hours or more since the last 

operational check of the ram air shutoff valve 

was performed as specified in MRB Task 

215000–201, and for airplanes that have 

accumulated 1,800 flight hours or more since 

the date of issuance of the original 

airworthiness certificate or original export 

certificate of airworthiness and for which no 

operational check of the valve has been 

performed: Within 3 months after the 

effective date of this AD or before 

accumulating 3,000 total flight hours, 

whichever occurs first. 

(2) Within 90 days after the effective date 

of this AD, revise the existing maintenance 

or inspection program, as applicable, to 

incorporate the information specified in 

[MHI RJ] CRJ700/900/1000 Series Regional 

Jet Series TR ALI–0745, dated April 27, 2021. 

The initial compliance time for doing the 

task is at the applicable time specified in 

paragraph (g)(2)(i) or (ii) of this AD, or within 

90 days after the effective date of this AD, 

whichever occurs later. 

(i) For airplanes that have accumulated less 

than 17,600 flight hours since the last 

detailed inspection of the pack discharge and 

ram air supply ducts was performed as 

specified in MRB Task 215000–204, and for 

airplanes that have accumulated less than 

17,600 flight hours since the date of issuance 

of the original airworthiness certificate or 

original export certificate of airworthiness: 

Within 3 months after the effective date of 

this AD, or before accumulating 17,600 total 

flight hours, whichever occurs later. 

(ii) For airplanes that have accumulated 

17,600 flight hours or more since the last 

detailed inspection of the pack discharge and 

ram air supply ducts as specified in MRB 


khammond on DSKJM1Z7X2PROD with PROPOSALS
36272 Federal Register / Vol. 87, No. 116 / Thursday, June 16, 2022 / Proposed Rules 

Task 215000–204, and for airplanes that have 

accumulated 17,600 flight hours or more 

since the date of issuance of the original 

airworthiness certificate or original export 

certificate of airworthiness, and for which no 

detailed inspection of the pack discharge and 

ram air supply ducts has been performed: 

Within 3 months after the effective date of 

this AD. 

(h) No Alternative Actions or Intervals 

After the existing maintenance or 

inspection program has been revised as 

required by paragraph (g) of this AD, no 

alternative actions (e.g., inspections) or 

intervals, may be used unless the actions and 

intervals are approved as an alternative 

method of compliance (AMOC) in 

accordance with the procedures specified in 

paragraph (i)(1) of this AD. 

(i) 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. 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 MHI RJ Aviation ULC’s TCCA 

Design Approval Organization (DAO). If 

approved by the DAO, the approval must 

include the DAO-authorized signature. 

(j) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) TCCA AD 

CF–2021–38, dated November 5, 2021, 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–2022–0679. 

(2) For more information about this AD, 

contact Chirayu A. Gupta, Aerospace 

Engineer, Airframe and Propulsion Section, 

FAA, New York ACO Branch, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 11590; 

telephone 516–228–7300; email 9-avs-nyacocos@faa.gov. 

(3) For service information identified in 

this AD, contact MHI RJ Aviation Group, 

Customer Response Center, 3655 Ave. des 

Grandes-Tourelles, Suite 110, Boisbriand, 

Que ́bec J7H 0E2 Canada; North America tollfree telephone 833–990–7272 or direct-dial 

telephone 450–990–7272; fax 514–855–8501; 

email thd.crj@mhirj.com; internet https://

mhirj.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 10, 2022. 

Christina Underwood, 

Acting Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–12934 Filed 6–15–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0681; Project 

Identifier MCAI–2021–01292–T] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc., Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Bombardier, Inc., Model BD– 

700–2A12 airplanes. This proposed AD 

was prompted by reports that significant 

water accumulation was discovered in 

the oxygen service compartment access 

panels of multiple airplanes. This 

proposed AD would require modifying 

the oxygen service compartment door to 

introduce a means of water drainage. 

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 August 1, 2022. 

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 

Business Aircraft Customer Response 

Center, 400 Coˆte-Vertu Road West, 

Dorval, Que ́bec H4S 1Y9, Canada; 

telephone 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–2022–0681; 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: 

Gabriel Kim, 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; 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–2022–0681; Project Identifier 

MCAI–2021–01292–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 


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