Federal Register / Vol. 86, No. 108 / Tuesday, June 8, 2021 / Rules and Regulations 30383 

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. 

(j) Related Information 

For more information about this AD, 

contact Nicholas Paine, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 District 

Avenue, Burlington, MA 01803; phone: (781) 

238–7742; fax: (781) 238–7199; email: 

nicholas.j.paine@faa.gov. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) International Aero Engines (IAE) NonModification Service Bulletin (NMSB) No. 

V2500–ENG–72–0713, Revision 1, dated 

January 26, 2021. 

(ii) IAE NMSB No. V2500–E5–72–0015, 

dated December 15, 2020. 

(3) For IAE service information identified 

in this AD, contact International Aero 

Engines AG, 400 Main Street, East Hartford, 

CT 06118; phone: (800) 565–0140; email: 

help24@pw.utc.com; website: http://

fleetcare.pw.utc.com. 

(4) You may view this service information 

at FAA, Airworthiness Products Section, 

Operational Safety Branch, 1200 District 

Avenue, Burlington, MA 01803. For 

information on the availability of this 

material at the FAA, call (781) 238–7759. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

email: fedreg.legal@nara.gov, or go to: 

https://www.archives.gov/federal-register/cfr/ 

ibr-locations.html. 

Issued on May 19, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–11960 Filed 6–7–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0098; Project 

Identifier MCAI–2020–01121–T; Amendment 

39–21564; AD 2021–11–02] 

RIN 2120–AA64 

Airworthiness Directives; MHI RJ 

Aviation ULC (Type Certificate 

Previously Held by Bombardier, Inc.) 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2019–22– 

07, which applied to all MHI RJ 

Aviation ULC Model CL–600–2B19 

(Regional Jet Series 100 & 440) 

airplanes, Model CL–600–2C10 

(Regional Jet Series 700, 701 & 702) 

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. AD 2019–22–07 required 

revising the existing airplane flight 

manual (AFM) to include a limitation 

and an abnormal operating procedure 

for the Automatic Flight Control System 

(AFCS). This AD requires revising the 

existing AFM and adding airplanes to 

the applicability. This AD was 

prompted by a finding that the 

limitation and abnormal operating 

procedure did not include reference to 

a certain mode. The FAA is issuing this 

AD to address the unsafe condition on 

these products. 

DATES: This AD is effective July 13, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of July 13, 2021. 

ADDRESSES: For Bombardier service 

information identified in this final rule, 

contact MHI RJ Aviation ULC, 12655 

Henri-Fabre Blvd., Mirabel, Que ́bec J7N 

1E1 Canada; Widebody Customer 

Response Center North America toll-free 

telephone +1–844–272–2720 or directdial telephone +1–514–855–8500; fax 

+1–514–855–8501; email thd.crj@

mhirj.com; internet https://mhirj.com. 

You may view this referenced 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. It is also available 

on the internet at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0098. 

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–2021– 

0098; 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 final rule, 

any comments received, and other 

information. The address for Docket 

Operations is U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE, Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Steven Dzierzynski, Aerospace 

Engineer, Avionics and Electrical 

Systems Section, FAA, New York ACO 

Branch, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone 

516–228–7367; email 9-avs-nyaco-cos@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued TCCA AD CF– 

2018–32R1, dated August 21, 2020 (also 

referred to as the Mandatory Continuing 

Airworthiness Information, or the 

MCAI), to correct an unsafe condition 

for all MHI RJ Aviation ULC Model CL– 

600–2B19 (Regional Jet Series 100 & 

440), CL–600–2C10 (Regional Jet Series 

700, 701 & 702), CL–600–2C11 (Regional 

Jet Series 550), CL–600–2D15 (Regional 

Jet Series 705), CL–600–2D24 (Regional 

Jet Series 900), and 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–2021– 

0098. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2019–22–07, 

Amendment 39–19786 (85 FR 439, 

January 6, 2020) (AD 2019–22–07). AD 

2019–22–07 applied to all MHI RJ 

Aviation ULC Model CL–600–2B19 

(Regional Jet Series 100 & 440) 

airplanes, Model CL–600–2C10 

(Regional Jet Series 700, 701 & 702) 

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) 


jbell on DSKJLSW7X2PROD with RULES
30384 Federal Register / Vol. 86, No. 108 / Tuesday, June 8, 2021 / Rules and Regulations 

airplanes. The NPRM published in the 

Federal Register on February 24, 2021 

(86 FR 11165). The NPRM was 

prompted by a finding that the 

limitation and abnormal operating 

procedure did not include reference to 

(V) ALTV CAP mode and a finding that 

the MHI RJ Aviation ULC Model CL– 

600–2C11 (Regional Jet Series 550) 

airplanes are also affected by the same 

unsafe condition (Model CL–600–2B19 

airplanes do not have (V) ALTS CAP or 

(V) ALTV CAP mode). The risk of the 

unsafe condition also exists during (V) 

ALTV CAP mode. The NPRM proposed 

to require revising the existing AFM and 

adding airplanes to the applicability. 

The FAA is issuing this AD to address 

an engine failure, if it occurs during or 

before a climb while in ALTS CAP, (V) 

ALTS CAP, or (V) ALTV CAP mode, 

which may cause the airspeed to drop 

significantly below the safe operating 

speed, possibly resulting in reduced 

control of the airplane. See the MCAI for 

additional background information. 

Comments 

The FAA gave the public the 

opportunity to participate in developing 

this final rule. The FAA has considered 

the comment received. The Air Line 

Pilots Association, International (ALPA) 

stated that it supports the NPRM. 

Conclusion 

The FAA reviewed the relevant data, 

considered the comment received, and 

determined that air safety and the 

public interest require adopting this 

final rule as proposed, except for minor 

editorial changes. The FAA has 

determined that these minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM for 

addressing the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM. 

Related Service Information Under 1 

CFR Part 51 

Bombardier has issued the following 

service information, which describes 

procedures for revising the existing 

AFM by including a limitation that 

specifies a warning for the AFCS and an 

abnormal operating procedure if an 

engine failure occurs during or before a 

climb while in ALTS CAP mode, (V) 

ALTS CAP mode, or (V) ALTV CAP 

mode, as applicable. These documents 

are distinct since they apply to different 

airplane models. 

• Section 02–08, ‘‘System 

Limitations,’’ of Chapter 2, 

‘‘LIMITATIONS’’; and Section 05–02, 

‘‘In-Flight Engine Failures,’’ of Chapter 

5, ‘‘ABNORMAL PROCEDURES’’; of the 

Bombardier CRJ Series Regional Jet 

Model CL–600–2B19 AFM, CSP A–012, 

Volume 1, Revision 73, dated January 3, 

2020. 

• Section 02–08, ‘‘System 

Limitations,’’ of Chapter 2, 

‘‘LIMITATIONS’’; and Section 05–02, 

‘‘In-Flight Engine Failures,’’ of Chapter 

5, ‘‘ABNORMAL PROCEDURES’’; of the 

Bombardier CRJ Series Regional Jet 

Model CL–600–2C10 (Series 700, 701, 

702) and CL–600–2C11 (Series 550) 

AFM, CSP B–012, Revision 31, dated 

May 8, 2020. 

• Section 02–08, ‘‘System 

Limitations,’’ of Chapter 2, 

‘‘LIMITATIONS’’; and Section 05–02, 

‘‘In-Flight Engine Failures,’’ of Chapter 

5, ‘‘ABNORMAL PROCEDURES’’; of the 

Bombardier CRJ Series Regional Jet 

Model CL–600–2D24 (Series 900) and 

CL–600–2D15 (Series 705) AFM, CSP C– 

012, Volume 1, Revision 24, dated 

March 27, 2020. 

• Section 02–08, ‘‘System 

Limitations,’’ of Chapter 2, 

‘‘LIMITATIONS’’; and Section 05–02, 

‘‘In-Flight Engine Failures,’’ of Chapter 

5, ‘‘ABNORMAL PROCEDURES’’; of the 

Bombardier CRJ Series Regional Jet 

Model CL–600–2E25 (Series 1000) AFM, 

CSP D–012, Revision 23, dated February 

14, 2020. 

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. 

Costs of Compliance 

The FAA estimates that this AD 

affects 992 airplanes of U.S. registry. 

The FAA estimates the following 

costs to comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

New actions ............................ 1 work-hour × $85 per hour = $85 ......................................... $0 $85 $84,320 

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 AD 

will not have federalism implications 

under Executive Order 13132. This AD 

will 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 that this AD: 

(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. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 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. 


jbell on DSKJLSW7X2PROD with RULES
Federal Register / Vol. 86, No. 108 / Tuesday, June 8, 2021 / Rules and Regulations 30385 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by: 

■ a. Removing Airworthiness Directive 

(AD) 2019–22–07, Amendment 39– 

19786 (85 FR 439, January 6, 2020); and 

■ b. Adding the following new AD: 

2021–11–02 MHI RJ Aviation ULC (Type 

Certificate Previously Held by 

Bombardier, Inc.): Amendment 39– 

21564; Docket No. FAA–2021–0098; 

Project Identifier MCAI–2020–01121–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective July 13, 2021. 

(b) Affected ADs 

This AD replaces AD 2019–22–07, 

Amendment 39–19786 (85 FR 439, January 6, 

2020) (AD 2019–22–07). 

(c) Applicability 

This AD applies to the MHI RJ Aviation 

ULC airplanes identified in paragraphs (c)(1) 

through (6) of this AD, certificated in any 

category, all manufacturer serial numbers. 

(1) Model CL–600–2B19 (Regional Jet 

Series 100 & 440) airplanes. 

(2) Model CL–600–2C10 (Regional Jet 

Series 700, 701 & 702) airplanes. 

(3) Model CL–600–2C11 (Regional Jet 

Series 550) airplanes. 

(4) Model CL–600–2D15 (Regional Jet 

Series 705) airplanes. 

(5) Model CL–600–2D24 (Regional Jet 

Series 900) airplanes. 

(6) Model CL–600–2E25 (Regional Jet 

Series 1000) airplanes. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 22, Auto Flight. 

(e) Reason 

This AD was prompted by a report that 

during the Automatic Flight Control System 

(AFCS) ALTS CAP, (V) ALTS CAP, or (V) 

ALTV CAP mode, the flight guidance/ 

autopilot does not account for engine failure 

while capturing an altitude. The FAA is 

issuing this AD to address an engine failure, 

if it occurs during or before a climb while in 

ALTS CAP, (V) ALTS CAP, or (V) ALTV CAP 

mode, which may cause the airspeed to drop 

significantly below the safe operating speed, 

possibly resulting in reduced control of the 

airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Revision of the Airplane Flight Manual 

(AFM) 

Within 60 days after the effective date of 

this AD: Revise the existing AFM to include 

the information in Subject 2, ‘‘AUTOMATIC 

FLIGHT CONTROL SYSTEM (AFCS),’’ of 

Section 02–08, ‘‘System Limitations,’’ of 

Chapter 2, ‘‘LIMITATIONS’’; and Subject 1.C, 

‘‘Engine Failure in Climb During ALTS 

CAP,’’ or Subject 1.D, ‘‘Engine Failure in 

Climb During (V) ALTS CAP or (V) ALTV 

CAP,’’ of Section 05–02, ‘‘In-flight Engine 

Failures,’’ of Chapter 5, ‘‘ABNORMAL 

PROCEDURES’’; as applicable; of the 

applicable AFM identified in figure 1 to 

paragraph (g) of this AD. 

(h) Credit for Previous Actions 

This paragraph provides credit for actions 

required by paragraph (g) of this AD, if those 

actions were performed before the effective 

date of this AD, using the applicable AFM 

specified in figure 2 to paragraph (h) of this 

AD. 


jbell on DSKJLSW7X2PROD with RULESER08JN21.015</GPH>

Figure 1 to paragraph (g) - AFM Revision 

MHI RJ Aviation 

ULC Airplane Bombardier AFM AFM Revision 

Model 

Bombardier CRJ Series Regional Jet Revision 73, dated CL-600-2B 19 Model CL-600-2B19 AFM, CSP A-012, January 3, 2020 Volume 1 

Bombardier CRJ Series Regional Jet 

CL-600-2C10 Model CL-600-2C10 (Series 700, 701, Revision 31, dated 

CL-600-2Cll 702) and CL-600-2Cl 1 (Series 550) May 8, 2020 

AFM, CSP B-012 

CL-600-2D15 

Bombardier CRJ Series Regional Jet 

Model CL-600-2D24 (Series 900) and Revision 24, dated 

CL-600-2D24 CL-600-2D15 (Series 705) AFM, CSP March 27, 2020 

C-012, Volume 1 

Bombardier CRJ Series Regional Jet Revision 23, dated CL-600-2E25 Model CL-600-2E25 (Series 1000) February 14, 2020 AFM, CSP D-012 
30386 Federal Register / Vol. 86, No. 108 / Tuesday, June 8, 2021 / Rules and Regulations 

(i) Other FAA AD Provisions 

(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 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–2018–32R1, dated August 21, 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–2021–0098. 

(2) For more information about this AD, 

contact Steven Dzierzynski, Aerospace 

Engineer, Avionics and Electrical Systems 

Section, FAA, New York ACO Branch, 1600 

Stewart Avenue, Suite 410, Westbury, NY 

11590; telephone 516–228–7367; email 9-avsnyaco-cos@faa.gov. 

(3) Service information identified in this 

AD that is not incorporated by reference is 

available at the addresses specified in 

paragraphs (k)(3) and (4) of this AD. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) Section 02–08, ‘‘System Limitations,’’ of 

Chapter 2, ‘‘LIMITATIONS,’’ of Bombardier 

CRJ Series Regional Jet Model CL–600–2B19 

Airplane Flight Manual (AFM), CSP A–012, 

Volume 1, Revision 73, dated January 3, 

2020. 

(ii) Section 05–02, ‘‘In-flight Engine 

Failures,’’ of Chapter 5, ‘‘ABNORMAL 

PROCEDURES,’’ of Bombardier CRJ Series 

Regional Jet Model CL–600–2B19 Airplane 

Flight Manual (AFM), CSP A–012, Volume 1, 

Revision 73, dated January 3, 2020. 

(iii) Section 02–08, ‘‘System Limitations,’’ 

of Chapter 2, ‘‘LIMITATIONS,’’ of 

Bombardier CRJ Series Regional Jet Model 

CL–600–2C10 (Series 700, 701, 702) and CL– 

600–2C11 (Series 550) AFM, CSP B–012, 

Revision 31, dated May 8, 2020. 

(iv) Section 05–02, ‘‘In-flight Engine 

Failures,’’ of Chapter 5, ‘‘ABNORMAL 

PROCEDURES,’’ of Bombardier CRJ Series 

Regional Jet Model CL–600–2C10 (Series 700, 

701, 702) and CL–600–2C11 (Series 550) 

AFM, CSP B–012, Revision 31, dated May 8, 

2020. 

(v) Section 02–08, ‘‘System Limitations,’’ of 

Chapter 2, ‘‘LIMITATIONS,’’ of Bombardier 

CRJ Series Regional Jet Model CL–600–2D24 

(Series 900) and Model CL–600–2D15 (Series 

705) AFM, CSP C–012, Volume 1, Revision 

24, dated March 27, 2020. 

(vi) Section 05–02, ‘‘In-flight Engine 

Failures,’’ of Chapter 5, ‘‘ABNORMAL 

PROCEDURES,’’ of Bombardier CRJ Series 

Regional Jet Model CL–600–2D24 (Series 

900) and Model CL–600–2D15 (Series 705) 

AFM, CSP C–012, Volume 1, Revision 24, 

dated March 27, 2020. 

(vii) Section 02–08, ‘‘System Limitations,’’ 

of Chapter 2, ‘‘LIMITATIONS,’’ of 

Bombardier CRJ Series Regional Jet Model 


jbell on DSKJLSW7X2PROD with RULESER08JN21.016</GPH>

Figure 2 to paragraph (h) - Credit for Previous AFM Revision 

MHI RJ Aviation CRJ Series Regional Jet ULC Airplane Bombardier AFM 

Model AFM Revision 

Revision 70, dated 

Bombardier CRJ Series Regional Jet July 13, 2018; or 

CL-600-2B 19 Model CL-600-2B19 AFM, CSP 

A-012, Volume 1 Revision 68, dated 

August 4, 2017 

Bombardier CRJ Series Regional Jet 

CL-600-2C10 Model CL-600-2C10 (Series 700, 701, Revision 29, dated 

CL-600-2Cll 702) and CL-600-2Cl 1 (Series 550) September 20, 2019 

AFM, CSP B-012 

CL-600-2D15 

Bombardier CRJ Series Regional Jet 

Model CL-600-2D24 (Series 900) and Revision 22, June 7, 

CL-600-2D24 CL-600-2D15 (Series 705) AFM, CSP 2019 

C-012, Volume 1 

Bombardier CRJ Series Regional Jet Revision 22, dated 

CL-600-2E25 Model CL-600-2E25 (Series 1000) September 6, 2019 

AFM, CSP D-012 
Federal Register / Vol. 86, No. 108 / Tuesday, June 8, 2021 / Rules and Regulations 30387 

1On August 6, 2018, North Dakota submitted a 

SIP to EPA that recodified the Air Pollution Control 

Rules, including those that address regional haze, 

from NDAC section 33–15 to NDAC section 33.1– 

15. EPA approved the recodification on February 5, 

2019 (84 FR 1610). The recodification made the 

regional haze section of NDAC to be changed from 

section 33–15–25 to section 33.1–15–25. The 2018 

SIP reflected the deletions of section 33.1–15–25– 

02.1 and section 33.1–15.25–03 (formerly referred 

to as section 33–15–25–02.1 and section 33–15–25– 

03). 

2EPA will act on the remaining portions of the 

ND August 3, 2020, SIP in a separate future 

rulemaking. 

3Since North Dakota’s NDAC recodification in 

2018, section 33–15–25–02.1 is referred to as 

section 33.1–15–25–02.1. 

4Since North Dakota’s NDAC recodification in 

2018, section 33–15–25–03 is referred to as section 

33.1–15–25–03. 

CL–600–2E25 (Series 1000) AFM, CSP D– 

012, Revision 23, dated February 14, 2020. 

(viii) Section 05–02, ‘‘In-flight Engine 

Failures,’’ of Chapter 5, ‘‘ABNORMAL 

PROCEDURES,’’ of Bombardier CRJ Series 

Regional Jet Model CL–600–2E25 (Series 

1000) AFM, CSP D–012, Revision 23, dated 

February 14, 2020. 

(3) For Bombardier service information 

identified in this AD, contact MHI RJ 

Aviation ULC, 12655 Henri-Fabre Blvd., 

Mirabel, Que ́bec J7N 1E1 Canada; Widebody 

Customer Response Center North America 

toll-free telephone +1–844–272–2720 or 

direct-dial telephone +1–514–855–8500; fax 

+1–514–855–8501; email thd.crj@mhirj.com; 

internet https://mhirj.com. 

(4) 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. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

email fedreg.legal@nara.gov, or go to: https:// 

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued on May 11, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–11956 Filed 6–7–21; 8:45 am] 

BILLING CODE 4910–13–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 52 

[EPA–R08–OAR–2021–0002; FRL–10024– 

54–Region 8] 

Approval and Promulgation of 

Implementation Plans; North Dakota; 

Revisions to Air Pollution Control 

Rules; Regional Haze 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Final rule. 

SUMMARY: The Environmental Protection 

Agency (EPA) is finalizing approval on 

a revision to the North Dakota State 

Implementation Plan (SIP) submitted by 

the State of North Dakota on November 

11, 2016 and supplemented on March 

15, 2021, that addresses amendments to 

the regional haze provisions of the 

North Dakota Administrative Code 

(NDAC). These revisions were 

submitted to remove certain regional 

haze requirements related to Best 

Available Retrofit Technology (BART) 

in the first planning period. EPA is also 

finalizing approval on a revision to the 

North Dakota SIP submitted on August 

3, 2020, that addresses additional 

amendments to the regional haze 

provisions of the NDAC. The 2020 SIP 

revision was submitted to update the 

incorporation by reference date for 

regional haze definitions, add emission 

reduction requirements to make 

reasonable progress during the second 

and subsequent regional haze planning 

periods, and revise the regional haze 

monitoring, recordkeeping, and 

reporting requirements to be applicable 

under the second and subsequent 

planning period. EPA is taking this 

action pursuant to section 110 and Part 

C of the Clean Air Act (CAA). 

DATES: This rule is effective on July 8, 

2021. 

ADDRESSES: The EPA has established a 

docket for this action under Docket ID 

No. EPA–R08–OAR–2021–0002. All 

documents in the docket are listed on 

the http://www.regulations.gov website. 

Although listed in the index, some 

information is not publicly available, 

e.g., CBI or other information whose 

disclosure is restricted by statute. 

Certain other material, such as 

copyrighted material, is not placed on 

the internet and will be publicly 

available only in hard copy form. 

Publicly available docket materials are 

available through http://

www.regulations.gov, or please contact 

the person identified in the FOR FURTHER

INFORMATION CONTACT section for 

additional availability information. 

FOR FURTHER INFORMATION CONTACT: 

Jaslyn Dobrahner, Air and Radiation 

Division, EPA, Region 8, Mailcode 

8ARD–IO, 1595 Wynkoop Street, 

Denver, Colorado 80202–1129, (303) 

312–6252, dobrahner.jaslyn@epa.gov. 

SUPPLEMENTARY INFORMATION: 

Throughout this document ‘‘we,’’ ‘‘us,’’ 

and ‘‘our’’ means the EPA. 

I. Background 

The background for this action is 

discussed in detail in our April 1, 2021 

proposal (86 FR 17101). In that 

document we proposed to approve 

North Dakota’s regional haze SIP 

revision submitted by the State of North 

Dakota on November 11, 2016 and 

supplemented on March 15, 2021. 

Specifically, we proposed to approve 

North Dakota’s removal of NDAC 

section 33–15–25–02.1 (requirement 

pertaining to the submittal of a regional 

haze BART analysis) and section 33–15– 

25–03 (requirement that references the 

federal guidelines for BART 

determinations under the regional haze 

rule) from the regional haze provisions 

provided in NDAC section 33–15–25.1

We also proposed to approve a 

portion of North Dakota’s August 3, 

2020, SIP revision that addresses NDAC 

section 33.1–15–25 of the Air Pollution 

Control Rules for regional haze.2

Specifically, we proposed to approve 

the following revisions to NDAC: 

Section 33.1–15–25–01 which updates 

the incorporation by reference date for 

regional haze definitions; section 33.1– 

15–25–03 which adds emission 

reduction requirements to make 

reasonable progress for the second and 

subsequent planning periods; and 

section 33.1–15–25–04 which revises 

the regional haze monitoring, 

recordkeeping, and reporting 

requirements to be applicable to sources 

under the second and subsequent 

planning periods. 

We did not receive any comments on 

the proposed rule. 

II. Final Action 

In this action, EPA is finalizing 

approval on SIP amendments to North 

Dakota Air Pollution Control Rules, 

shown in Table 1, submitted by the 

State of North Dakota on November 11, 

2016, and supplemented March 15, 

2021, and August 3, 2020. 

TABLE 1—LIST OF NORTH DAKOTA

AMENDMENTS THAT EPA IS APPROVING

Amended Sections in the November 11, 2016 

Submittal, Supplemented March 15, 2021 

NDAC section 33–15–25–02.1,3 NDAC section 33– 

15–25–03.4

Amended Sections in the August 3, 2020 

Submittal 

NDAC section 33.1–15–25–01, NDAC section 33.1– 

15–25–03, NDAC section 33.1–15–25–04. 

III. Incorporation by Reference 

In this document, EPA is finalizing 

regulatory text that includes 

incorporation by reference. In 

accordance with requirements of 1 CFR 

51.5, EPA is finalizing the incorporation 


jbell on DSKJLSW7X2PROD with RULES