1346 Federal Register / Vol. 87, No. 7 / Tuesday, January 11, 2022 / Rules and Regulations 

information on the availability of this 

material at the FAA, call (817) 222–5110. 

(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: fr.inspection@nara.gov, or go to: 

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

ibr-locations.html. 

Issued on December 9, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–00049 Filed 1–10–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0784; Project 

Identifier MCAI–2020–01455–T; Amendment 

39–21857; AD 2021–25–13] 

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 certain 

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 a determination that new 

or more restrictive airworthiness 

limitations are necessary. 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 February 15, 

2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of February 15, 2022. 

ADDRESSES: For service information 

identified in this final rule, contact 

Bombardier Business Aircraft Customer 

Response Center, 400 Coˆte Vertu Road 

West, Dorval, Que ́bec H4S 1Y9, Canada; 

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–2021–0784. 

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– 

0784; 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: 

Elizabeth Dowling, 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: 

Background 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued TCCA AD CF– 

2020–44, dated October 23, 2020 

(referred to after this as the Mandatory 

Continuing Airworthiness Information, 

or the MCAI), to correct an unsafe 

condition for certain 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–2021– 

0784. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain 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 September 14, 2021 (86 FR 

51029). The NPRM was prompted by a 

determination that new or more 

restrictive airworthiness limitations are 

necessary. 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 

fatigue cracking and loss of structural 

integrity of the circumferential splice 

joint, which could result in reduced 

structural integrity 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 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 (a special 

detailed inspection for cracking of the 

skin circumferential splice at fuselage 

station (FS) 559.00, between stringer 

(STR) 10L and STR10R). Note: The 

asterisk (or ‘‘one star’’) with the last 

three digits of the task number indicates 

that the task is an airworthiness 

limitation task. 

• Bombardier Challenger 600 Time 

Limits/Maintenance Checks (TLMC), 

Product Support Publication (PSP) 605, 

Temporary Revision (TR) 5–163, dated 

April 30, 2020, which includes Task 53– 

30–00–165*, ‘‘Skin Circumferential 

Splice at FS559.00, between STR10L 

and STR10R.’’ 

• Bombardier Challenger 601 TLMC, 

PSP 601–5, TR 5–267, dated April 30, 

2020, which includes Task 53–30–00– 

188*, ‘‘Skin Circumferential Splice at 

FS559.00, between STR10L and 

STR10R.’’ 

• Bombardier Challenger 601 TLMC, 

PSP 601A–5, TR 5–281, dated April 30, 

2020, which includes Task 53–30–00– 

191*, ‘‘Skin Circumferential Splice at 

FS559.00, between STR10L and 

STR10R.’’ 

• Section 5–10–30, Airworthiness 

Limitation Items, Bombardier 

Challenger 604 TLMC, Publication No. 

CH 604 TLMC, Part 2, Revision 32, 

dated December 18, 2019, which 

includes Task 53–20–00–192*, ‘‘Special 

Detailed Inspection of the Skin 


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Federal Register / Vol. 87, No. 7 / Tuesday, January 11, 2022 / Rules and Regulations 1347 

Circumferential Splice at FS559.00, 

between Stringers10L and 10R.’’ 

• Section 5–10–30, Airworthiness 

Limitation Items, Bombardier 

Challenger 605 TLMC, Publication No. 

CH 605 TLMC, Part 2, Revision 21, 

dated December 18, 2019, which 

includes Task 53–20–00–192*, ‘‘Special 

Detailed Inspection of the Skin 

Circumferential Splice at FS559.00, 

between Stringers10L and 10R.’’ 

• Section 5–10–30, Airworthiness 

Limitation Items, Bombardier 

Challenger 650 TLMC, Publication No. 

CH 650 TLMC, Part 2, Revision 8, dated 

December 18, 2019, which includes 

Task 53–20–00–192*, ‘‘Special Detailed 

Inspection of the Skin Circumferential 

Splice at FS559.00, between 

Stringers10L and 10R.’’ 

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. 

Costs of Compliance 

The FAA estimates that this AD 

affects 463 airplanes of U.S. registry. 

The FAA estimates the following costs 

to comply with this AD: 

The FAA has determined that revising 

the existing maintenance or inspection 

program takes an average of 90 workhours 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 

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: 

2021–25–13 Bombardier, Inc.: Amendment 

39–21857; Docket No. FAA–2021–0784; 

Project Identifier MCAI–2020–01455–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective February 15, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to the Bombardier, Inc., 

airplanes, certificated in any category, 

identified in paragraphs (c)(1) through (3) of 

this AD. 

(1) Model CL–600–1A11 (600) airplanes, 

serial numbers 1004 through 1085 inclusive. 

(2) Model CL–600–2A12 (601) airplanes, 

serial numbers 3001 through 3066 inclusive. 

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

and 604 Variants) airplanes, serial numbers 

5001 through 5194 inclusive, 5301 through 

5665 inclusive, 5701 through 6049 inclusive, 

and 6050 through 6999 inclusive. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 05, Time Limits/Maintenance 

Checks. 

(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 fatigue cracking and loss 

of structural integrity of the circumferential 

splice joint, which could result in reduced 

structural integrity of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Maintenance or Inspection Program 

Revision 

Within 60 days after the effective date of 

this AD, revise the existing maintenance or 

inspection program, as applicable, to 

incorporate the information 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 applicable 

document specified in Figure 1 to paragraph 

(g) of this AD, or within 60 days after the 

effective date of this AD, whichever occurs 

later. 

BILLING CODE 4910–13–P 


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1348 Federal Register / Vol. 87, No. 7 / Tuesday, January 11, 2022 / Rules and Regulations 

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 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 


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Figure 1 to paragraph (g) -

Time Limits/Maintenance Checks (TLMC) Documents and Task Numbers 

For Model- Having Serial TLMC Document- Task Numbers and 

Numbers- TitleCL-600-lAl 1 1004 through Bombardier Challenger 600 53-30-00-165*, 

( 600 variant) 1085 inclusive TLMC, PSP 605, Temporary Skin Circumferential 

airplanes Revision (TR) 5-163, dated Splice at FS559.00, 

April 30, 2020 between STRlOL and 

STRlOR 

CL-600-2A12 3001 through Bombardier Challenger 601 53-30-00-188*, 

( 601 variant) 3066 inclusive TLMC, PSP 601-5, TR 5- Skin Circumferential 

airplanes 267, dated April 30, 2020 Splice at FS559.00, 

between STRlOL and 

STRlOR 

CL-600-2B 16 5001 through Bombardier Challenger 601 53-30-00-191 *, 

(601-3A/3R 5194 inclusive TLMC, PSP 601A-5, TR Skin Circumferential 

variant) 5-281, dated April 30, 2020 Splice at FS559.00, 

airplanes between STRlOL and 

STRlOR 

CL-600-2B 16 5301 through Section 5-10-30, 53-20-00-192*, 

( 604 variant) 5665 inclusive Airworthiness Limitation Special Detailed 

airplanes Items, of the Bombardier Inspection of the Skin 

Challenger 604 TLMC, Circumferential Splice 

Publication No. CH 604 at FS559.00, between 

TLMC, Part 2, Revision 32, Stringers lOL and lOR 

dated December 18, 2019 

CL-600-2B 16 5701 through Section 5-10-30, 53-20-00-192*, 

( 604 variant) 6049 inclusive Airworthiness Limitation Special Detailed 

airplanes Items, of the Bombardier Inspection of the Skin 

Challenger 605 TLMC, Circumferential Splice 

Publication No. CH 605 at FS559.00, between 

TLMC, Part 2, Revision 21, Stringers lOL and lOR 

dated December 18, 2019 

CL-600-2B 16 6050 through Section 5-10-30, 53-20-00-192*, 

( 604 variant) 6999 inclusive Airworthiness Limitation Special Detailed 

airplanes Items, Bombardier Inspection of the Skin 

Challenger 650 TLMC, Circumferential Splice 

Publication No. CH 650 at FS559.00, between 

TLMC, Part 2, Revision 8, Stringers 1 OL and 1 OR 

dated December 18, 2019 

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

the task is an airworthiness limitation task. 
Federal Register / Vol. 87, No. 7 / Tuesday, January 11, 2022 / Rules and Regulations 1349 

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–2020–44, dated October 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–2021–0784. 

(2) For more information about this AD, 

contact Elizabeth Dowling, 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. 

(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) Bombardier Challenger 600 Time 

Limits/Maintenance Checks (TLMC), Product 

Support Publication (PSP) 605, Temporary 

Revision (TR) 5–163, dated April 30, 2020. 

(ii) Bombardier Challenger 601 TLMC, PSP 

601–5, TR 5–267, dated April 30, 2020. 

(iii) Bombardier Challenger 601 TLMC, 

PSP 601A–5, TR 5–281, dated April 30, 2020. 

(iv) Section 5–10–30, Airworthiness 

Limitation Items, of the Bombardier 

Challenger 604 TLMC, Publication No. CH 

604 TLMC, Part 2, Revision 32, dated 

December 18, 2019. 

(v) Section 5–10–30, Airworthiness 

Limitation Items, of the Bombardier 

Challenger 605 TLMC, Publication No. CH 

605 TLMC, Part 2, Revision 21, dated 

December 18, 2019. 

(vi) Section 5–10–30, Airworthiness 

Limitation Items, of the Bombardier 

Challenger 650 TLMC, Publication No. CH 

650 TLMC, Part 2, Revision 8, dated 

December 18, 2019. 

(3) For service information identified in 

this AD, contact Bombardier Business 

Aircraft Customer Response Center, 400 Coˆte 

Vertu Road West, Dorval, Que ́bec H4S 1Y9, 

Canada; 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 fr.inspection@nara.gov, or go to: http:// 

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

Issued on December 3, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–28567 Filed 1–10–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0571; Project 

Identifier AD–2021–00101–T; Amendment 

39–21835; AD 2021–24–14] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 787–8, 

787–9, and 787–10 airplanes. This AD 

was prompted by reports of damage to 

the thrust reverser (TR) translating 

sleeve secondary sliders due to contact 

between the slider and the slider track 

liner. This damage could reduce the 

fatigue life of the slider below its full 

design life for the TRs installed on 

certain engines. This AD requires 

determining the serial number of the TR 

and performing applicable on-condition 

actions; or replacing the TR with a 

serviceable TR. The FAA is issuing this 

AD to address the unsafe condition on 

these products. 

DATES: This AD is effective February 15, 

2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of February 15, 2022. 

ADDRESSES: For service information 

identified in this final rule, contact 

Boeing Commercial Airplanes, 

Attention: Contractual & Data Services 

(C&DS), 2600 Westminster Blvd., MC 

110–SK57, Seal Beach, CA 90740–5600; 

telephone 562–797–1717; internet 

https://www.myboeingfleet.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 at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0571. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0571; 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: Tak 

Kobayashi, Aerospace Engineer, 

Propulsion Section, FAA, Seattle ACO 

Branch, 2200 South 216th St., Des 

Moines, WA 98198; phone and fax: 206– 

231–3553; email: takahisa.kobayashi@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain The Boeing Company 

Model 787–8, 787–9, and 787–10 

airplanes. The NPRM published in the 

Federal Register on August 9, 2021 (86 

FR 43443). The NPRM was prompted by 

reports of damage to the TR translating 

sleeve secondary sliders due to contact 

between the slider and the slider track 

liner. This damage was found on TR 

sleeves installed only on certain 

engines. In the NPRM, the FAA 

proposed to require determining the 

serial number of the TR and performing 

applicable on-condition actions; or 

replacing the TR with a serviceable TR. 

The FAA is issuing this AD to address 

this damage, which could result in 

failure of the TR translating sleeve 

secondary slider and possible 

detachment of the outer cowl, which 

could strike the fuselage, causing 

damage to the airplane, and could result 


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