Federal Register / Vol. 87, No. 7 / Tuesday, January 11, 2022 / Rules and Regulations 1335 

any task ‘‘required by paragraph (1), (2), or 

(3) of EASA AD 2020–0251.’’ 

(4) Where paragraph (5) of EASA AD 2020– 

0251 specifies actions ‘‘in case of finding 

discrepancies,’’ for this AD, discrepancies 

include fatigue cracking. 

(5) Paragraph (6) of EASA AD 2020–0251 

specifies revising ‘‘the approved AMP’’ 

within 12 months after its effective date, but 

this AD requires, for airplanes with an 

original airworthiness certificate or original 

export certificate of airworthiness issued on 

or before March 20, 2018, revising the 

existing maintenance or inspection program, 

as applicable, to incorporate the ‘‘limitations, 

tasks and associated thresholds and 

intervals’’ specified in paragraph (6) of EASA 

AD 2020–0251 within 90 days after the 

effective date of this AD. 

(6) For airplanes with an original 

airworthiness certificate or original export 

certificate of airworthiness issued on or 

before March 20, 2018, the initial compliance 

time for doing the tasks specified in 

paragraph (6) of EASA AD 2020–0251 is at 

the applicable ‘‘thresholds’’ as incorporated 

by the requirements of paragraph (6) of EASA 

AD 2020–0251, or within 90 days after the 

effective date of this AD, whichever occurs 

later. 

(7) The provisions specified in paragraphs 

(7) and (8) of EASA AD 2020–0251 do not 

apply to this AD. 

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

2020–0251 does not apply to this AD. 

(i) New Provisions for Alternative Actions 

and 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) and 

intervals are allowed unless they are 

approved as specified in the provisions of the 

‘‘Ref. Publications’’ section of EASA AD 

2020–0251. 

(j) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2020–0251 specifies 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(k) Additional AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, Large Aircraft 

Section, International Validation Branch, 

FAA, has the authority to approve AMOCs 

for this AD, if requested using the procedures 

found in 14 CFR 39.19. In accordance with 

14 CFR 39.19, send your request to your 

principal inspector or responsible Flight 

Standards Office, as appropriate. If sending 

information directly to the Large Aircraft 

Section, International Validation Branch, 

send it to the attention of the person 

identified in paragraph (l) of this AD. 

Information may be emailed to: 9-AVS-AIR730-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, Large Aircraft Section, 

International Validation Branch, FAA; or 

EASA; or Airbus Defense and Space S.A.’s 

EASA Design Organization Approval (DOA). 

If approved by the DOA, the approval must 

include the DOA-authorized signature. 

(l) Related Information 

For more information about this AD, 

contact Shahram Daneshmandi, Aerospace 

Engineer, Large Aircraft Section, 

International Validation Branch, FAA, 2200 

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

telephone and fax 206–231–3220; email 

shahram.daneshmandi@faa.gov. 

(m) 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) European Union Aviation Safety Agency 

(EASA) AD 2020–0251, dated November 11, 

2020. 

(ii) [Reserved] 

(3) For EASA AD 2020–0251, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 8999 

000; email ADs@easa.europa.eu; Internet 

www.easa.europa.eu. You may find this 

EASA AD on the EASA website at https://

ad.easa.europa.eu. 

(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 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/ibrlocations.html. 

Issued on December 2, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–28579 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–2021–0841; Project 

Identifier MCAI–2021–00622–T; Amendment 

39–21863; AD 2021–26–05] 

RIN 2120–AA64 

Airworthiness Directives; Saab AB, 

Support and Services (Formerly 

Known as Saab AB, Saab Aeronautics) 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2020–07– 

17, which applied to all Saab AB, 

Support and Services Model SAAB 2000 

airplanes. AD 2020–07–17 required 

revising the existing maintenance or 

inspection program, as applicable, to 

incorporate new or more restrictive 

airworthiness limitations. Since the 

FAA issued AD 2020–07–17, it has 

determined that new or more restrictive 

airworthiness limitations are necessary. 

This AD retains the requirements of AD 

2020–07–17 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. 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. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of May 26, 2020 (85 FR 

21764, April 20, 2020). 

ADDRESSES: For material incorporated 

by reference (IBR) in this AD, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 

8999 000; email ADs@easa.europa.eu; 

internet www.easa.europa.eu. You may 

find this IBR material on the EASA 

website at https://ad.easa.europa.eu. 

You may view this material at the FAA, 

Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th St., Des Moines, WA. For 

information on the availability of this 

material at the FAA, call 206–231–3195. 

It is also available in the AD docket at 


khammond on DSKJM1Z7X2PROD with RULES
1336 Federal Register / Vol. 87, No. 7 / Tuesday, January 11, 2022 / Rules and Regulations 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0841. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0841; 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. 

FOR FURTHER INFORMATION CONTACT: 

Shahram Daneshmandi, Aerospace 

Engineer, Large Aircraft Section, 

International Validation Branch, FAA, 

2200 South 216th St., Des Moines, WA 

98198; telephone and fax 206–231– 

3220; Shahram.Daneshmandi@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2021–0132, 

dated May 25, 2021 (EASA AD 2021– 

0132) (also referred to as the MCAI), to 

correct an unsafe condition for all Saab 

AB, Support and Services Model SAAB 

2000 airplanes. EASA AD 2021–0132 

superseded EASA AD 2019–0263, dated 

October 22, 2019 (EASA AD 2019–0263) 

(which corresponds to FAA AD 2020– 

07–17, Amendment 39–19896 (85 FR 

21764, April 20, 2020) (AD 2020–07– 

17)). 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2020–07–17. 

AD 2020–07–17 applied to all Saab AB, 

Support and Services Model SAAB 2000 

airplanes. The NPRM published in the 

Federal Register on October 4, 2021 (86 

FR 54663). The NPRM was prompted by 

a determination that new or more 

restrictive airworthiness limitations are 

necessary. The NPRM proposed to 

continue to require revising the existing 

maintenance or inspection program, as 

applicable, to incorporate new or more 

restrictive airworthiness limitations, as 

specified in EASA AD 2019–0263. The 

NPRM also proposed to require revising 

the existing maintenance or inspection 

program, as applicable, to incorporate 

new or more restrictive airworthiness 

limitations, as specified in EASA AD 

2021–0132. Accomplishing the 

maintenance or inspection program 

revision required by paragraph (j) of this 

AD terminates the requirements of 

paragraph (g) of this AD (which restates 

paragraph (g) of AD 2020–07–17). 

The FAA is issuing this AD 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. 

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 

The FAA reviewed the relevant data 

and determined that air safety requires 

adopting this AD as proposed. 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. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on these 

products. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2021–0132 describes new 

or more restrictive airworthiness 

limitations for safe life limits, structural 

limitation items, and fuel airworthiness 

items, as well as certification 

maintenance requirements. 

This AD also requires EASA AD 

2019–0263, which the Director of the 

Federal Register approved for 

incorporation by reference as of May 26, 

2020 (85 FR 21764, April 20, 2020). 

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 2020–07–17 to be $7,650 (90 workhours × $85 per work-hour). 

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. The FAA estimates the total 

cost per operator for the new proposed 

maintenance/inspection program 

revision 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. 

The Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 


khammond on DSKJM1Z7X2PROD with RULES
Federal Register / Vol. 87, No. 7 / Tuesday, January 11, 2022 / Rules and Regulations 1337 

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) 2020–07–17, Amendment 39– 

19896 (85 FR 21764, April 20, 2020); 

and 

■ b. Adding the following new AD: 

2021–26–05 Saab AB, Support and Services 

(Formerly Known as Saab AB, Saab 

Aeronautics): Amendment 39–21863; 

Docket No. FAA–2021–0841; Project 

Identifier MCAI–2021–00622–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective February 15, 2022. 

(b) Affected ADs 

This AD replaces AD 2020–07–17, 

Amendment 39–19896 (85 FR 21764, April 

20, 2020) (AD 2020–07–17). 

(c) Applicability 

This AD applies to all 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. This 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 Maintenance or Inspection 

Program Revision, With No Changes 

This paragraph restates the requirements of 

paragraph (g) of AD 2020–07–17, with no 

changes. 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 2019–0263, dated 

October 22, 2019 (EASA AD 2019–0263). 

Accomplishing the maintenance or 

inspection program revision required by 

paragraph (j) of this AD terminates the 

requirements of this paragraph. 

(h) Retained Exceptions to EASA AD 2019– 

0263, With Revised Exceptions 

This paragraph restates the requirements of 

paragraph (h) of AD 2020–07–17, with 

revised exceptions. 

(1) The requirements specified in 

paragraphs (1) and (2) of EASA AD 2019– 

0263 do not apply to this AD. 

(2) Paragraph (3) of EASA AD 2019–0263 

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 2019– 

0263 within 90 days after May 26, 2020 (the 

effective date of AD 2020–07–17). 

(3) The initial compliance time for doing 

the tasks specified in paragraph (3) of EASA 

AD 2019–0263 is at the applicable 

‘‘associated thresholds’’ specified in 

paragraph (3) of EASA AD 2019–0263, or 

within 90 days after May 26, 2020 (the 

effective date of AD 2020–07–17), whichever 

occurs later. 

(4) The provisions specified in paragraphs 

(4) and (5) of EASA AD 2019–0263 do not 

apply to this AD. 

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

2019–0263 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 (i) of AD 2020–07–17, 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 2019–0263. 

(j) New Maintenance or Inspection Program 

Revision 

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 2021–0132, 

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

Accomplishing the maintenance or 

inspection program revision required by this 

paragraph terminates the requirements of 

paragraph (g) of this AD. 

(k) Exceptions to EASA AD 2021–0132 

(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’’ 

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 the 

effective date of this AD. 

(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 the effective date of this 

AD, 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. 

(l) New Provisions for Alternative Actions, 

Intervals, and CDCCLs 

After the maintenance or inspection 

program has been revised as required by 

paragraph (j) 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. 

(m) Additional AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, Large Aircraft 

Section, International Validation Branch, 

FAA, has the authority to approve AMOCs 

for this AD, if requested using the procedures 

found in 14 CFR 39.19. In accordance with 

14 CFR 39.19, send your request to your 

principal inspector or responsible Flight 

Standards Office, as appropriate. If sending 

information directly to the Large Aircraft 

Section, International Validation Branch, 

send it to the attention of the person 

identified in paragraph (n) of this AD. 

Information may be emailed to: 9-AVS-AIR730-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, Large Aircraft Section, 

International Validation Branch, FAA; or 

EASA; or Saab AB, Support and Services’ 

(Formerly Known as Saab AB, Saab 

Aeronautics) EASA Design Organization 

Approval (DOA). If approved by the DOA, 

the approval must include the DOAauthorized signature. 

(n) Related Information 

For more information about this AD, 

contact Shahram Daneshmandi, Aerospace 

Engineer, Large Aircraft Section, 

International Validation Branch, FAA, 2200 

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

telephone and fax 206–231–3220; 

Shahram.Daneshmandi@faa.gov. 

(o) 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. 

(3) The following service information was 

approved for IBR on February 15, 2022. 

(i) European Union Aviation Safety Agency 

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

(ii) [Reserved] 


khammond on DSKJM1Z7X2PROD with RULES
1338 Federal Register / Vol. 87, No. 7 / Tuesday, January 11, 2022 / Rules and Regulations 

(4) The following service information was 

approved for IBR on May 26, 2020 (85 FR 

21764, April 20, 2020). 

(i) European Union Aviation Safety Agency 

AD 2019–0263, dated October 22, 2019. 

(ii) [Reserved] 

(5) For EASA AD 2019–0263 and EASA AD 

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

telephone +49 221 8999 000; email ADs@

easa.europa.eu; internet 

www.easa.europa.eu. You may find this 

EASA AD on the EASA website at https://

ad.easa.europa.eu. 

(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 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/ibrlocations.html. 

Issued on December 8, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–28580 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–2021–0504; Project 

Identifier AD–2020–01380–T; Amendment 

39–21876; AD 2021–26–17] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2019–03– 

26, which applied to certain The Boeing 

Company Model 737–600, –700, –700C, 

–800, –900, and –900ER series 

airplanes. AD 2019–03–26 required 

modifying the passenger service units 

(PSUs) and life vest panels by replacing 

the existing inboard lanyard and 

installing two new lanyards on the 

outboard edge of the PSUs and life vest 

panels; measuring the distance between 

the hooks of the torsion spring of the 

lanyard assembly; replacing discrepant 

lanyard assemblies; and re-identifying 

serviceable lanyard assemblies. This AD 

was prompted by a determination that 

certain airplanes are listed in the wrong 

configuration and certain PSUs have not 

been correctly re-identified. This AD 

retains the requirements of AD 2019– 

03–26, and, for certain airplanes, 

requires an inspection to determine if 

the re-identified PSU part number is 

correct, and further re-identification if 

necessary. 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– 

0504. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0504; 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: 

Tony Koung, Aerospace Engineer, Cabin 

Safety and Environmental Systems 

Section, FAA, Seattle ACO Branch, 2200 

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

phone and fax: 206–231–3985; email: 

tony.koung@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2019–03–26, 

Amendment 39–19578 (84 FR 7266, 

March 4, 2019) (AD 2019–03–26). AD 

2019–03–26 applied to certain The 

Boeing Company Model 737–600, –700, 

–700C, –800, –900, and –900ER series 

airplanes. The NPRM published in the 

Federal Register on June 30, 2021 (86 

FR 34653). The NPRM was prompted by 

a determination that certain airplanes 

are listed in the wrong configuration 

and certain PSUs have not been 

correctly re-identified. In the NPRM, the 

FAA proposed to continue to require the 

requirements of AD 2019–03–26, and, 

for certain airplanes, would require an 

inspection to determine if the reidentified PSU part number is correct, 

and further re-identification if 

necessary. The FAA is issuing this AD 

to address PSUs and life vest panels 

detaching from the supporting airplane 

structure, which could lead to passenger 

injuries and impede passenger and crew 

egress during evacuation. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from 

two commenters, including The Boeing 

Company and an individual, who 

supported the NPRM without change. 

The FAA received additional 

comments from two other commenters, 

including All Nippon Airways (ANA) 

and Aviation Partners Boeing (APB). 

The following presents the comments 

received on the NPRM and the FAA’s 

response to each comment. 

Request To Allow Credit for Earlier 

Revision of Service Information 

ANA requested that the proposed AD 

be revised to add a note to allow use of 

Boeing Service Bulletin 737–25–1707, 

Revision 1, dated May 18, 2018. ANA 

stated that it has some airplanes that are 

identified as ‘‘Group 1’’ airplanes in 

Boeing Special Attention Service 

Bulletin 737–25–1707, Revision 2, dated 

July 27, 2020, and on which Revision 1 

of the service bulletin was 

accomplished. ANA added that the 

changes described in Revision 2 of the 

service bulletin do not affect the work 

instructions for airplanes identified as 

‘‘Group 1’’ and believed that Revision 1 

could also be used to comply with the 

proposed requirements. 

The FAA disagrees with the request to 

revise this AD to allow use of Boeing 

Service Bulletin 737–25–1707, Revision 

1, dated May 18, 2018, as it is not 

necessary. Group 1 is divided into three 

configurations, depending on whether 

or not earlier revisions of Boeing Special 

Attention Service Bulletin 737–25– 

1707, Revision 2, dated July 27, 2020, 

have been done. Group 1 airplanes on 

which Boeing Service Bulletin 737–25– 

1707, Revision 1, dated May 18, 2018, 

has been done are defined as Group 1, 

Configuration 3 airplanes. The 


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