76406 Federal Register / Vol. 89, No. 181 / Wednesday, September 18, 2024 / Rules and Regulations 

paragraph (k) of this AD. Information may be 

emailed to: AVS-AIR-730-AMOC@faa.gov. 

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, International Validation 

Branch, FAA; or ANAC; or ANAC’s 

authorized Designee. If approved by the 

ANAC Designee, the approval must include 

the Designee’s authorized signature. 

(k) Additional Information 

For more information about this AD, 

contact Hassan Ibrahim, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; phone: 206–231– 

3653; email: hassan.m.ibrahim@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the material listed in this paragraph 

under 5 U.S.C. 552(a) and 1 CFR part 51. 

(2) You must use this material as 

applicable to do the actions required by this 

AD, unless this AD specifies otherwise. 

(i) Ageˆncia Nacional de Aviac ̧a ̃o Civil 

(ANAC) AD 2023–08–03R02, effective May 

10, 2024. 

(ii) [Reserved] 

(3) For ANAC AD 2023–08–03R02 

identified in this AD, contact ANAC, 

Aeronautical Products Certification Branch 

(GGCP), Rua Dr. Orlando Feirabend Filho, 

230—Centro Empresarial Aquarius—Torre 

B—Andares 14 a 18, Parque Residencial 

Aquarius, CEP 12.246–190—Sa ̃o Jose ́ dos 

Campos—SP, Brazil; telephone 55 (12) 3203– 

6600; email pac@anac.gov.br; website 

anac.gov.br/en/. You may find this ANAC 

AD on the ANAC website at 

sistemas.anac.gov.br/certificacao/DA/ 

DAE.asp. 

(4) 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. 

(5) You may view this material at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

visit www.archives.gov/federal-register/cfr/ 

ibr-locations, or email fr.inspection@

nara.gov. 

Issued on September 12, 2024. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2024–21177 Filed 9–17–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1293; Project 

Identifier MCAI–2023–01283–T; Amendment 

39–22804; AD 2024–15–12] 

RIN 2120–AA64 

Airworthiness Directives; Saab AB, 

(Formerly Known as Saab AB, Support 

and Services) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2021–26– 

05, which applied to all Saab AB Model 

SAAB 2000 airplanes. AD 2021–26–05 

required revising the existing 

maintenance or inspection program, as 

applicable, to incorporate new or more 

restrictive airworthiness limitations. 

This AD was prompted by a 

determination that new or more 

restrictive airworthiness limitations are 

necessary. This AD continues to require 

certain actions in AD 2021–26–05 and 

requires revising the existing 

maintenance or inspection program, as 

applicable, to incorporate new or more 

restrictive airworthiness limitations, as 

specified in a European Union Aviation 

Safety Agency (EASA) AD, which is 

incorporated by reference. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective October 23, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of October 23, 2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of February 15, 2022 (87 FR 

1335, January 11, 2022). 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–1293; 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, the mandatory 

continuing airworthiness information 

(MCAI), 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. 

Material Incorporated by Reference: 

• For EASA material identified in this 

AD, contact EASA, Konrad-AdenauerUfer 3, 50668 Cologne, Germany; 

telephone +49 221 8999 000; email 

ADs@easa.europa.eu; website 

easa.europa.eu. You may find this 

material on the EASA website at 

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. 

It is also available at regulations.gov 

under Docket No. FAA–2024–1293. 

FOR FURTHER INFORMATION CONTACT: 

Shahram Daneshmandi, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; phone: 

206–231–3220; email: 

shahram.daneshmandi@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2021–26–05, 

Amendment 39–21863 (87 FR 1335, 

January 11, 2022) (AD 2021–26–05). AD 

2021–26–05 applied to all Saab AB, 

Support and Services Model SAAB 2000 

airplanes. AD 2021–26–05 required 

revising the existing maintenance or 

inspection program, as applicable, to 

incorporate new or more restrictive 

airworthiness limitations. The FAA 

issued AD 2021–26–05 to address, 

among other things, fatigue cracking of 

principal structural elements (PSEs) and 

corrosion prevention and control. This 

unsafe condition, if not addressed, 

could result in reduced structural 

integrity of a PSE, and lead to loss of 

control of the airplane. 

The NPRM published in the Federal 

Register on May 14, 2024 (89 FR 41903). 

The NPRM was prompted by AD 2023– 

0220, dated December 21, 2023 (EASA 

AD 2023–0220) (also referred to as the 

MCAI), issued by EASA, which is the 

Technical Agent for the Member States 

of the European Union. The MCAI states 

new or more restrictive airworthiness 

limitations have been developed. 

In the NPRM, the FAA proposed to 

continue to require certain actions in 

AD 2021–26–05 and to require revising 

the existing maintenance or inspection 

program, as applicable, to incorporate 

new or more restrictive airworthiness 

limitations, as specified in EASA AD 

2023–0220. The FAA is issuing this AD 

to address among other things, fatigue 

cracking of PSEs and corrosion 

prevention and control. The unsafe 

condition, if not addressed, could result 

in reduced structural integrity of a PSE, 


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Federal Register / Vol. 89, No. 181 / Wednesday, September 18, 2024 / Rules and Regulations 76407 

and lead to loss of control of the 

airplane. 

You may examine the MCAI in the 

AD docket at regulations.gov under 

Docket No. FAA–2024–1293. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the cost to the public. 

Conclusion 

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 this State of 

Design Authority, it has notified the 

FAA of the unsafe condition described 

in the MCAI referenced above. The FAA 

reviewed the relevant data and 

determined that air safety requires 

adopting this AD as proposed. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on this 

product. Except for minor editorial 

changes, this AD is adopted as proposed 

in the NPRM. None of the changes will 

increase the economic burden on any 

operator. 

Related Material Under 1 CFR Part 51 

EASA AD 2023–0220 specifies new or 

more restrictive airworthiness 

limitations for airplane structures and 

safe life limits. 

This AD also requires EASA AD 

2021–0132, dated May 25, 2021, which 

the Director of the Federal Register 

approved for incorporation by reference 

as of February 15, 2022 (87 FR 1335, 

January 11, 2022). 

This material 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 9 airplanes of U.S. registry. The 

FAA estimates the following costs to 

comply with this AD: 

The FAA estimates the total cost per 

operator for the retained actions from 

AD 2021–26–05 to be $7,650 (90 workhours × $85 per work-hour). 

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. 

The FAA estimates the total cost per 

operator for the new actions to be 

$7,650 (90 work-hours × $85 per workhour). 

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. 

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: 

■ a. Removing Airworthiness Directive 

(AD) 2021–26–05, Amendment 39– 

21863 (87 FR 1335, January 11, 2022); 

and 

■ b. Adding the following new AD: 

2024–15–12 Saab AB (Formerly Known as 

Saab AB, Support and Services): 

Amendment 39–22804; Docket No. 

FAA–2024–1293; Project Identifier 

MCAI–2023–01283–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective October 23, 2024. 

(b) Affected ADs 

This AD replaces AD 2021–26–05, 

Amendment 39–21863 (87 FR 1335, January 

11, 2022) (AD 2021–26–05). 

(c) Applicability 

This AD applies to all Saab AB (formerly 

known as Saab AB, Support and Services) 

Model SAAB 2000 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 a determination 

that new or more restrictive airworthiness 

limitations are necessary. The FAA is issuing 

this AD to address among other things, 

fatigue cracking of principal structural 

elements (PSEs) and corrosion prevention 

and control. The unsafe condition, if not 

addressed, could result in reduced structural 

integrity of a PSE, and lead to loss of control 

of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Retained Revision of the Existing 

Maintenance or Inspection Program, With a 

New Terminating Action 

This paragraph restates the requirements of 

paragraph (j) of AD 2021–26–05, with a new 

terminating action. 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 2021–0132, dated May 25, 2021 

(EASA AD 2021–0132). Accomplishing the 

revision of the existing maintenance or 

inspection program required by paragraph (j) 

of this AD terminates the requirements of this 

paragraph. 

(h) Retained Exceptions to EASA AD 2021– 

0132, With No Changes 

This paragraph restates the requirements of 

paragraph (h) of AD 2021–26–05, with no 

changes. 


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76408 Federal Register / Vol. 89, No. 181 / Wednesday, September 18, 2024 / Rules and Regulations 

(1) The requirements specified in 

paragraphs (1) and (2) of EASA AD 2021– 

0132 do not apply to this AD. 

(2) Paragraph (3) of EASA AD 2021–0132 

specifies revising ‘‘the approved AMP 

[aircraft maintenance program]’’ within 12 

months after its effective date, but this AD 

requires revising the existing maintenance or 

inspection program, as applicable, to 

incorporate the ‘‘limitations, tasks and 

associated thresholds and intervals’’ 

specified in paragraph (3) of EASA AD 2021– 

0132 within 90 days after February 15, 2022 

(the effective date of AD 2021–26–05). 

(3) The initial compliance time for doing 

the tasks specified in paragraph (3) of EASA 

AD 2021–0132 is at the applicable 

‘‘associated thresholds’’ specified in 

paragraph (3) of EASA AD 2021–0132, or 

within 90 days after February 15, 2022 (the 

effective date of AD 2021–26–05), whichever 

occurs later. 

(4) The provisions specified in paragraphs 

(4) and (5) of EASA AD 2021–0132 do not 

apply to this AD. 

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

2021–0132 does not apply to this AD. 

(i) Retained Restrictions on Alternative 

Actions, Intervals, and Critical Design 

Configuration Control Limitations (CDCCLs), 

With a New Exception 

This paragraph restates the requirements of 

paragraph (l) of AD 2021–26–05, with a new 

exception. Except as required by paragraph 

(j) of this AD, after the maintenance or 

inspection program has been revised as 

required by paragraph (g) of this AD, no 

alternative actions (e.g., inspections), 

intervals, and CDCCLs are allowed unless 

they are approved as specified in the 

provisions of the ‘‘Ref. Publications’’ section 

of EASA AD 2021–0132. 

(j) New Revision of the Existing Maintenance 

or Inspection Program 

Except as specified in paragraph (k) of this 

AD: Comply with all required actions and 

compliance times specified in, and in 

accordance with, EASA AD 2023–0220, 

dated December 21, 2023 (EASA AD 2023– 

0220). Accomplishing the revision of the 

existing maintenance or inspection program 

required by this paragraph terminates the 

requirements of paragraph (g) of this AD. 

(k) Exceptions to EASA AD 2023–0220 

(1) This AD does not adopt the 

requirements specified in paragraphs (1) and 

(2) of EASA AD 2023–0220. 

(2) Paragraph (3) of EASA AD 2023–0220 

specifies revising ‘‘the AMP’’ within 12 

months after its effective date, but this AD 

requires revising the existing maintenance or 

inspection program, as applicable, within 90 

days after the effective date of this AD. 

(3) The initial compliance time for doing 

the tasks specified in paragraph (3) of EASA 

AD 2023–0220 is at the applicable 

‘‘limitations’’ and ‘‘associated thresholds’’ as 

incorporated by the requirements of 

paragraph (3) of EASA AD 2023–0220, or 

within 90 days after the effective date of this 

AD, whichever occurs later. 

(4) This AD does not adopt the provisions 

specified in paragraphs (4) and (5) of EASA 

AD 2023–0220. 

(5) This AD does not adopt the ‘‘Remarks’’ 

section of EASA AD 2023–0220. 

(l) New No Alternative Actions, Intervals, or 

CDCCLs 

After the existing maintenance or 

inspection program has been revised as 

required by paragraph (j) of this AD, no 

alternative actions (e.g., inspections), 

intervals, or CDCCLs are allowed unless they 

are approved as specified in the provisions 

of the ‘‘Ref. Publications’’ section of EASA 

AD 2023–0220. 

(m) Additional AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Validation Branch, FAA, has the authority to 

approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

In accordance with 14 CFR 39.19, send your 

request to your principal inspector or 

responsible Flight Standards Office, as 

appropriate. If sending information directly 

to the manager of the International Validation 

Branch, mail it to the address identified in 

paragraph (n) of this AD. Information may be 

emailed to: 9-AVS-AIR-730-AMOC@faa.gov. 

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, International Validation 

Branch, FAA; or EASA; or Saab AB’s EASA 

Design Organization Approval (DOA). If 

approved by the DOA, the approval must 

include the DOA-authorized signature. 

(n) Additional Information 

For more information about this AD, 

contact Shahram Daneshmandi, Aviation 

Safety Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; phone: 206– 

231–3220; email: shahram.daneshmandi@

faa.gov. 

(o) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the material listed in this paragraph 

under 5 U.S.C. 552(a) and 1 CFR part 51. 

(2) You must use this material as 

applicable to do the actions required by this 

AD, unless this AD specifies otherwise. 

(3) The following material was approved 

for IBR on October 23, 2024. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2023–0220, dated December 21, 

2023. 

(ii) [Reserved] 

(4) The following material was approved 

for IBR on February 15, 2022 (87 FR 1335, 

January 11, 2022). 

(i) European Union Aviation Safety Agency 

(EASA) AD 2021–0132, dated May 25, 2021. 

(ii) [Reserved] 

(5) For EASA AD 2023–0220 and EASA AD 

2021–0132, contact EASA, KonradAdenauer-Ufer 3, 50668 Cologne, Germany; 

telephone +49 221 8999 000; email ADs@

easa.europa.eu; website easa.europa.eu. You 

may find these EASA ADs on the EASA 

website at ad.easa.europa.eu. 

(6) 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. 

(7) You may view this material at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

visit www.archives.gov/federal-register/cfr/ 

ibr-locations, or email fr.inspection@

nara.gov. 

Issued on September 12, 2024. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2024–21183 Filed 9–17–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1469; Project 

Identifier MCAI–2024–00130–T; Amendment 

39–22810; AD 2024–16–04] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2009–25– 

13, which applied to certain 

Bombardier, Inc., Model BD–100–1A10 

(Challenger 300) airplanes. AD 2009– 

25–13 required the deactivation of the 

left-hand (LH) baggage bay heater mat. 

Since the FAA issued AD 2009–25–13, 

Bombardier developed a new design 

solution for the potential uncontrolled 

heating of the baggage bay sidewall 

heater mat. This AD retains the 

requirements of AD 2009–25–13 and 

requires modifying the baggage bay 

sidewall interior panel, heater mat, and 

water tank heater installation, and doing 

functional testing. Upon the completion 

of the new actions, the retained 

requirements of AD 2009–25–13 will 

terminate. This AD also revises the 

applicability. The FAA is issuing this 

AD to address the unsafe condition on 

these products. 

DATES: This AD is effective October 23, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of October 23, 2024. 


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