2532 Federal Register / Vol. 87, No. 11 / Tuesday, January 18, 2022 / Rules and Regulations 

a yaw pedal adjuster, which could result in 

reduced yaw control of the helicopter. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

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 2021–0199, dated 

August 27, 2021 (EASA AD 2021–0199). 

(h) Exceptions to EASA AD 2021–0199 

(1) Where EASA AD 2021–0199 refers to 

flight hours, this AD requires using hours 

time-in-service. 

(2) Where EASA AD 2021–0199 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(3) Where the service information 

referenced in EASA AD 2021–0199 specifies 

discarding certain parts, this AD requires 

removing those parts from service. 

(4) This AD does not mandate compliance 

with the ‘‘Remarks’’ section of EASA AD 

2021–0199. 

(i) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2021–0199 specifies 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(j) Special Flight Permit 

Special flight permits, as described in 14 

CFR 21.197 and 21.199, are prohibited. 

(k) Alternative Methods of Compliance 

(AMOCs) 

(1) 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 local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the 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. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(l) Related Information 

For more information about this AD, 

contact Kristi Bradley, Program Manager, 

COS Program Management Section, 

Operational Safety Branch, FAA, 10101 

Hillwood Pkwy., Fort Worth, TX 76177; 

telephone (817) 222–5485; email 

kristin.bradley@faa.gov. 

(m) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 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 2021–0199, dated August 27, 

2021. 

(ii) [Reserved] 

(3) For EASA AD 2021–0199, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 8999 

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

www.easa.europa.eu. 

(4) You may view this service information 

at the FAA, Office of the Regional Counsel, 

Southwest Region, 10101 Hillwood Pkwy., 

Room 6N–321, Fort Worth, TX 76177. For 

information on the availability of this 

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

This material may be found in the AD docket 

at https://www.regulations.gov by searching 

for and locating Docket No. FAA–2021–0570. 

(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 17, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–00757 Filed 1–14–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0794; Project 

Identifier AD–2021–00400–T; Amendment 

39–21869; AD 2021–26–10] 

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 747–400, 

–400D, and –400F series airplanes. This 

AD was prompted by reports of burned 

Boeing Material Specification (BMS) 8– 

39 urethane foam, and a report from the 

airplane manufacturer that airplanes 

were assembled with seals throughout 

various areas of the airplane (including 

flight deck and cargo compartments) 

made of BMS 8–39 urethane foam, a 

material with fire-retardant properties 

that deteriorate with age. This AD 

requires replacing the system tube/wire 

seals made of BMS 8–39 urethane foam 

in certain areas of the airplane. The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective February 22, 

2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of February 22, 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– 

0794. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0794; 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: Julie 

Linn, Aerospace Engineer, Cabin Safety 

and Environmental Systems Section, 

FAA, Seattle ACO Branch, 2200 South 

216th St., Des Moines, WA 98198; 

phone and fax: 206–231–3684; email: 

julie.linn@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 747–400, –400D, and –400F 

series airplanes. The NPRM published 

in the Federal Register on October 14, 

2021 (86 FR 57081). The NPRM was 

prompted by reports of burned BMS 8– 

39 urethane foam, and a report from the 

airplane manufacturer that airplanes 

were assembled with seals throughout 

various areas of the airplane (including 

flight deck and cargo compartments) 

made of BMS 8–39 urethane foam, a 

material with fire-retardant properties 


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Federal Register / Vol. 87, No. 11 / Tuesday, January 18, 2022 / Rules and Regulations 2533 

that deteriorate with age. In the NPRM, 

the FAA proposed to require replacing 

the system tube/wire seals made of BMS 

8–39 urethane foam in certain areas of 

the airplane. The FAA is issuing this AD 

to prevent failure of the urethane seals 

to maintain sufficient Halon 

concentrations in the cargo 

compartments to extinguish or contain 

fire or smoke, and to prevent 

penetration of fire or smoke in areas of 

the airplane that are difficult to access 

for fire and smoke detection or 

suppression. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from 

Boeing, the Air Line Pilots Association, 

International (ALPA), and two 

individuals, who supported the NPRM 

without change. 

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. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed Boeing Special 

Attention Service Bulletin 747–25– 

3381, Revision 3, dated February 19, 

2021. This service information specifies 

procedures for replacing BMS 8–39 

urethane foam seals with BMS 1–68 

silicone foam rubber seals (including 

doing a general visual inspection of the 

foam for any tube or wire penetrations 

and sealing any penetrations that go 

through the insulation blankets). This 

service information adds the work 

instructions for Group 11, Configuration 

2; Group 13 and 14, Configuration 4; 

and Group 16, 17, and 19, Configuration 

5 airplanes. 

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 ADDRESSES. 

Costs of Compliance 

The FAA estimates that this AD 

affects 131 airplanes of U.S. registry. 

The FAA estimates the following costs 

to comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts 

cost 

Cost per 

product 

Cost on U.S. 

operators 

Replacement (including GVI) ........................ Up to 32 work-hours × $85 per hour = Up to 

$2,720.

* $ Up to $2,720 ....... Up to $356,320. 

* The FAA has received no definitive data on which to base the parts cost estimates for this AD. 

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 adding 

the following new airworthiness 

directive: 

2021–26–10 The Boeing Company: 

Amendment 39–21869; Docket No. 

FAA–2021–0794; Project Identifier AD– 

2021–00400–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective February 22, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 747–400, –400D, and –400F series 

airplanes, certificated in any category, 

identified as Group 11, Configuration 2; 

Group 13 and 14, Configuration 4; and Group 

16, 17, and 19, Configuration 5, in Boeing 

Special Attention Service Bulletin 747–25– 

3381, Revision 3, dated February 19, 2021. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 25, Equipment/Furnishings. 

(e) Unsafe Condition 

This AD was prompted by reports of 

burned Boeing Material Specification (BMS) 

8–39 urethane foam, and a report from the 

airplane manufacturer that airplanes were 

assembled with seals throughout various 

areas of the airplane (including flight deck 

and cargo compartments) made of BMS 8–39 

urethane foam, a material with fire-retardant 

properties that deteriorate with age. The FAA 

is issuing this AD to prevent failure of the 

urethane seals to maintain sufficient Halon 

concentrations in the cargo compartments to 

extinguish or contain fire or smoke, and to 

prevent penetration of fire or smoke in areas 

of the airplane that are difficult to access for 

fire and smoke detection or suppression. 


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2534 Federal Register / Vol. 87, No. 11 / Tuesday, January 18, 2022 / Rules and Regulations 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) BMS 8–39 Urethane Foam Seal 

Replacements 

Within 72 months after the effective date 

of this AD: Replace the BMS 8–39 urethane 

foam seals in the forward cargo compartment 

system tube/wire (including doing a general 

visual inspection of the foam for any tube or 

wire penetrations and sealing any 

penetrations that go through the insulation 

blankets) with BMS 1–68 silicone foam 

rubber seals, as applicable, in accordance 

with the Accomplishment Instructions of 

Boeing Special Attention Service Bulletin 

747–25–3381, Revision 3, dated February 19, 

2021. 

(h) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Seattle 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 the attention of 

the person identified in Related Information. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the responsible Flight Standards Office. 

(3) An AMOC that provides an acceptable 

level of safety may be used for any repair, 

modification, or alteration required by this 

AD if it is approved by The Boeing Company 

Organization Designation Authorization 

(ODA) that has been authorized by the 

Manager, Seattle ACO Branch, FAA, to make 

those findings. To be approved, the repair 

method, modification deviation, or alteration 

deviation must meet the certification basis of 

the airplane, and the approval must 

specifically refer to this AD. 

(i) Related Information 

For more information about this AD, 

contact Julie Linn, Aerospace Engineer, 

Cabin Safety and Environmental Systems 

Section, FAA, Seattle ACO Branch, 2200 

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

phone and fax: 206–231–3684; email: 

julie.linn@faa.gov. 

(j) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

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

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Boeing Special Attention Service 

Bulletin 747–25–3381, Revision 3, dated 

February 19, 2021. 

(ii) [Reserved] 

(3) For service information identified in 

this AD, 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. 

(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, 

fr.inspection@nara.gov, or go to: https://

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

Issued on December 9, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–00585 Filed 1–14–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0609; Project 

Identifier AD–2021–00274–T; Amendment 

39–21861; AD 2021–26–03] 

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 737–300, 

–400, and –500 series airplanes. This 

AD was prompted by an evaluation by 

the design approval holder (DAH) 

indicating that the frame splice between 

certain stringers is subject to 

widespread fatigue damage (WFD). This 

AD requires an inspection of certain 

fuselage frame splices for existing 

repairs, repetitive inspections of certain 

fuselage frame splices for cracking, and 

applicable on-condition actions. The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective February 22, 

2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of February 22, 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– 

0609. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0609; 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: 

Wayne Ha, Aerospace Engineer, 

Airframe Section, FAA, Los Angeles 

ACO Branch, 3960 Paramount 

Boulevard, Lakewood, CA 90712–4137; 

phone: 562–627–5238; fax: 562–627– 

5210; email: wayne.ha@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 737–300, –400, and –500 series 

airplanes. The NPRM published in the 

Federal Register on August 24, 2021 (86 

FR 47255). The NPRM was prompted by 

an evaluation by the DAH indicating 

that the frame splice between certain 

stringers is subject to WFD. In the 

NPRM, the FAA proposed to require an 

inspection of certain fuselage frame 

splices for existing repairs, repetitive 

inspections of certain fuselage frame 

splices for cracking, and applicable oncondition actions. The FAA is issuing 

this AD to address upper frame cracking 

common to the frame splice between 

stringer S–13 and S–14, which could 

interact with stringer S–14 skin lap 

splice lower fastener row cracking in 

lower skin and result in an uncontrolled 

decompression of the airplane and loss 

of structural integrity. 


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