Federal Register / Vol. 86, No. 148 / Thursday, August 5, 2021 / Rules and Regulations 42701 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2020–1181; Project 

Identifier MCAI–2020–01368–T; Amendment 

39–21617; AD 2021–13–12] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc., Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Bombardier, Inc., Model CL–600–1A11 

(600), CL–600–2A12 (601), and CL–600– 

2B16 (601–3A, 601–3R and 604 

Variants) airplanes. This AD was 

prompted by reports of corrosion on the 

passenger door internal structure of inservice airplanes. This AD requires 

revising the existing maintenance or 

inspection program, as applicable, to 

incorporate new or more restrictive 

airworthiness limitations. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective September 9, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of September 9, 2021. 

ADDRESSES: For service information 

identified in this final rule, 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. 

It is also available on the internet at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2020–1181. 

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–2020– 

1181; 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: Aziz 

Ahmed, Aerospace Engineer, Airframe 

and Propulsion Section, FAA, New York 

ACO Branch, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 

telephone 516–228–7329; fax 516–794– 

5531; 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– 

2016–37, dated November 25, 2016 (also 

referred to as the Mandatory Continuing 

Airworthiness Information, or the 

MCAI), to correct an unsafe condition 

for all Bombardier, Inc., Model CL–600– 

1A11 (600), CL–600–2A12 (601), and 

CL–600–2B16 (601–3A, 601–3R, and 

604 Variants) 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–2020– 

1181. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to all Bombardier, Inc., Model 

CL–600–1A11 (600), CL–600–2A12 

(601), and CL–600–2B16 (601–3A, 601– 

3R and 604 Variants) airplanes. The 

NPRM published in the Federal 

Register on March 17, 2021 (86 FR 

14551). The NPRM was prompted by 

reports of corrosion on the passenger 

door internal structure of in-service 

airplanes caused by an accumulation of 

moisture under the epoxy ramp. The 

NPRM proposed to require revising the 

existing maintenance or inspection 

program, as applicable, to incorporate 

new or more restrictive airworthiness 

limitations. The FAA is issuing this AD 

to address corrosion on the passenger 

door internal structure and consequent 

loss of the structural integrity of the 

forward passenger door. See the MCAI 

for additional background information. 

Comments 

The FAA gave the public the 

opportunity to participate in developing 

this final rule. The FAA received no 

comments on the NPRM or on the 

determination of the cost to the public. 

Conclusion 

The FAA reviewed the relevant data 

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 

The FAA reviewed the following 

Bombardier service information, which 

describes new or more restrictive 

airworthiness limitations for the upper 

latch pins of the forward passenger 

door. These documents are distinct 

since they apply to different airplane 

configurations. (Note: The asterisk (or 

‘‘one star’’) with the last three digits of 

the task number indicates that the task 

is an airworthiness limitation task.) 

• Task 53–10–01–101 *, ‘‘Upper 

Latch Pins of the Passenger Door,’’ of 

Bombardier Challenger CL–600–1A11 

Time Limits/Maintenance Checks 

(TLMC), Product Support Publication 

(PSP) 605, Revision 39, dated January 8, 

2018. 

• Task 53–10–01–101 *, ‘‘Upper 

Latch Pins of the Passenger Door,’’ of 

Bombardier Challenger CL–600–2A12 

TLMC, PSP 601–5, Revision 46, dated 

January 8, 2018. 

• Task 53–10–01–101 *, ‘‘Upper 

Latch Pins of the Passenger Door,’’ of 

Bombardier Challenger CL–600–2B16 

TLMC, PSP 601A–5, Revision 42, dated 

January 8, 2018. 

• Task 53–20–00–188 *, ‘‘Special 

Detailed Inspection of the Upper Latch 

Pins of the Passenger Door,’’ of 

Bombardier Challenger TLMC, CH 604 

TLMC, Revision 32, dated December 18, 

2019. 

• Task 53–20–00–188 *, ‘‘Special 

Detailed Inspection of the Upper Latch 

Pins of the Passenger Door,’’ of 

Bombardier Challenger TLMC, CH 605 

TLMC, Revision 21, dated December 18, 

2019. 

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 133 airplanes of U.S. registry. 

The FAA estimates the following costs 

to comply with this 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 


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42702 Federal Register / Vol. 86, No. 148 / Thursday, August 5, 2021 / Rules and Regulations 

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 

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. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2021–13–12 Bombardier, Inc.: Amendment 

39–21617; Docket No. FAA–2020–1181; 

Project Identifier MCAI–2020–01368–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective September 9, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Bombardier, Inc., 

Model CL–600–1A11 (600), CL–600–2A12 

(601), and CL–600–2B16 (601–3A, 601–3R, 

and 604 Variants) airplanes, certificated in 

any category. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 05, Time Limits/Maintenance 

Checks. 

(e) Reason 

This AD was prompted by reports of 

corrosion on the passenger door internal 

structure of in-service airplanes. This AD was 

further prompted by a determination that 

new or more restrictive airworthiness 

limitations are necessary. The FAA is issuing 

this AD to address corrosion on the passenger 

door internal structure and consequent loss 

of the structural integrity of the forward 

passenger door. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Maintenance or Inspection Program 

Revision 

Within 30 days after the effective date of 

this AD: Revise the existing maintenance or 

inspection program, as applicable, to 

incorporate the information specified in the 

applicable time limits/maintenance checks 

(TLMC) revision specified in figure 1 to 

paragraph (g) of this AD. The initial 

compliance time for doing the tasks is at the 

time specified in the TLMC, or within 30 

days after the effective date of this AD, 

whichever occurs later. 

BILLING CODE 4910–13–P 


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BILLING CODE 4910–13–C 

(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 or 

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; 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. 

(j) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) TCCA AD 

CF–2016–37, dated November 25, 2016, 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–2020–1181. 

(2) For more information about this AD, 

contact Aziz Ahmed, Aerospace Engineer, 

Airframe and Propulsion Section, FAA, New 

York ACO Branch, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; telephone 

516–228–7329; fax 516–794–5531; email 9- 

avs-nyaco-cos@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 this AD specifies otherwise. 

(i) Task 53–10–01–101 *, ‘‘Upper Latch 

Pins of the Passenger Door,’’ of Bombardier 

Challenger CL–600–1A11 Time Limits/ 

Maintenance Checks (TLMC), Product 

Support Publication (PSP) 605, Revision 39, 

dated January 8, 2018. 

(ii) Task 53–10–01–101 *, ‘‘Upper Latch 

Pins of the Passenger Door,’’ of Bombardier 

Challenger CL–600–2A12 TLMC, PSP 601–5, 

Revision 46, dated January 8, 2018. 

(iii) Task 53–10–01–101 *, ‘‘Upper Latch 

Pins of the Passenger Door,’’ of Bombardier 

Challenger CL–600–2B16 TLMC, PSP 601A– 

5, Revision 42, dated January 8, 2018. 

(iv) Task 53–20–00–188 *, ‘‘Special 

Detailed Inspection of the Upper Latch Pins 


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Figure 1 to paragraph (g) - TLMC Revisions 

Airplane Model TLMCTask Task Title TLMCManual 

No. No. 

CL-600-lAl 1 (CL-600) 53-10-01-101 *1 Upper Latch Pins Product Support 

of the Passenger Publication (PSP) 

Door 605, Revision 39, 

dated January 8, 

2018 

CL-600-2A12 (CL-601) 53-10-01-101 * Upper Latch Pins PSP 601-5, 

of the Passenger Revision 46, dated 

Door January 8, 2018 

CL-600-2B16 53-10-01-101 * Upper Latch Pins PSP 601A-5, 

(CL-601-3A/3R) of the Passenger Revision 42, dated 

Door Januarv 8, 2018 

CL-600-2B16 (CL-604) 53-20-00-188* Special Detailed CH604TLMC, 

Inspection of the Revision 32, dated 

Upper Latch Pins December 18, 2019 

of the Passenger 

Door 

CL-600-2B16 (CL- 53-20-00-188* Special Detailed CH605 TLMC, 

6052) Inspection of the Revision 21, dated 

Upper Latch Pins December 18, 2019 

of the Passenger 

Door 

1 The asterisk ( or "one star") with the last three digits of the task number indicates that 

the task is an airworthiness limitation task. 

2 Model CL-600-2B16 (604 Variant), referred to by the marketing designation 

CL-605. 
42704 Federal Register / Vol. 86, No. 148 / Thursday, August 5, 2021 / Rules and Regulations 

of the Passenger Door,’’ of Bombardier 

Challenger TLMC, CH 604 TLMC, Revision 

32, dated December 18, 2019. 

(v) Task 53–20–00–188 *, ‘‘Special Detailed 

Inspection of the Upper Latch Pins of the 

Passenger Door,’’ of Bombardier Challenger 

TLMC, CH 605 TLMC, Revision 21, dated 

December 18, 2019. 

(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. 

(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 June 16, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–16565 Filed 8–4–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 97 

[Docket No. 31383; Amdt. No. 3968] 

Standard Instrument Approach 

Procedures, and Takeoff Minimums 

and Obstacle Departure Procedures; 

Miscellaneous Amendments 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This rule amends, suspends, 

or removes Standard Instrument 

Approach Procedures (SIAPs) and 

associated Takeoff Minimums and 

Obstacle Departure Procedures for 

operations at certain airports. These 

regulatory actions are needed because of 

the adoption of new or revised criteria, 

or because of changes occurring in the 

National Airspace System, such as the 

commissioning of new navigational 

facilities, adding new obstacles, or 

changing air traffic requirements. These 

changes are designed to provide for the 

safe and efficient use of the navigable 

airspace and to promote safe flight 

operations under instrument flight rules 

at the affected airports. 

DATES: This rule is effective August 5, 

2021. The compliance date for each 

SIAP, associated Takeoff Minimums, 

and ODP is specified in the amendatory 

provisions. 

The incorporation by reference of 

certain publications listed in the 

regulations is approved by the Director 

of the Federal Register as of August 5, 

2021. 

ADDRESSES: Availability of matter 

incorporated by reference in the 

amendment is as follows: 

For Examination 

1. U.S. Department of Transportation, 

Docket Ops–M30, 1200 New Jersey 

Avenue SE, West Bldg., Ground Floor, 

Washington, DC, 20590–0001; 

2. The FAA Air Traffic Organization 

Service Area in which the affected 

airport is located; 

3. The office of Aeronautical 

Information Services, 6500 South 

MacArthur Blvd., Oklahoma City, OK 

73169 or, 

4. 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. 

Availability 

All SIAPs and Takeoff Minimums and 

ODPs are available online free of charge. 

Visit the National Flight Data Center 

online at nfdc.faa.gov to register. 

Additionally, individual SIAP and 

Takeoff Minimums and ODP copies may 

be obtained from the FAA Air Traffic 

Organization Service Area in which the 

affected airport is located. 

FOR FURTHER INFORMATION CONTACT: 

Thomas J. Nichols, Flight Procedures 

and Airspace Group, Flight 

Technologies and Procedures Division, 

Flight Standards Service, Federal 

Aviation Administration. Mailing 

Address: FAA Mike Monroney 

Aeronautical Center, Flight Procedures 

and Airspace Group, 6500 South 

MacArthur Blvd., Registry Bldg. 29, 

Room 104, Oklahoma City, OK 73169. 

Telephone: (405) 954–4164. 

SUPPLEMENTARY INFORMATION: This rule 

amends 14 CFR part 97 by amending the 

referenced SIAPs. The complete 

regulatory description of each SIAP is 

listed on the appropriate FAA Form 

8260, as modified by the National Flight 

Data Center (NFDC)/Permanent Notice 

to Airmen (P–NOTAM), and is 

incorporated by reference under 5 

U.S.C. 552(a), 1 CFR part 51, and 14 

CFR 97.20. The large number of SIAPs, 

their complex nature, and the need for 

a special format make their verbatim 

publication in the Federal Register 

expensive and impractical. Further, 

airmen do not use the regulatory text of 

the SIAPs, but refer to their graphic 

depiction on charts printed by 

publishers of aeronautical materials. 

Thus, the advantages of incorporation 

by reference are realized and 

publication of the complete description 

of each SIAP contained on FAA form 

documents is unnecessary. This 

amendment provides the affected CFR 

sections, and specifies the SIAPs and 

Takeoff Minimums and ODPs with their 

applicable effective dates. This 

amendment also identifies the airport 

and its location, the procedure and the 

amendment number. 

Availability and Summary of Material 

Incorporated by Reference 

The material incorporated by 

reference is publicly available as listed 

in the ADDRESSES section. 

The material incorporated by 

reference describes SIAPs, Takeoff 

Minimums and ODPs as identified in 

the amendatory language for part 97 of 

this final rule. 

The Rule 

This amendment to 14 CFR part 97 is 

effective upon publication of each 

separate SIAP and Takeoff Minimums 

and ODP as amended in the transmittal. 

For safety and timeliness of change 

considerations, this amendment 

incorporates only specific changes 

contained for each SIAP and Takeoff 

Minimums and ODP as modified by 

FDC permanent NOTAMs. 

The SIAPs and Takeoff Minimums 

and ODPs, as modified by FDC 

permanent NOTAM, and contained in 

this amendment are based on criteria 

contained in the U.S. Standard for 

Terminal Instrument Procedures 

(TERPS). In developing these changes to 

SIAPs and Takeoff Minimums and 

ODPs, the TERPS criteria were applied 

only to specific conditions existing at 

the affected airports. All SIAP 

amendments in this rule have been 

previously issued by the FAA in a FDC 

NOTAM as an emergency action of 

immediate flight safety relating directly 

to published aeronautical charts. 

The circumstances that created the 

need for these SIAP and Takeoff 

Minimums and ODP amendments 

require making them effective in less 

than 30 days. 

Because of the close and immediate 

relationship between these SIAPs, 

Takeoff Minimums and ODPs, and 

safety in air commerce, I find that notice 

and public procedure under 5 U.S.C. 

553(b) are impracticable and contrary to 


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