34120 Federal Register / Vol. 87, No. 108 / Monday, June 6, 2022 / Rules and Regulations 

SBA will revise the SBA Form 480, 

Size Status Declaration, for SBIC 

applicants to reflect the change to the 

24-month average for applicants using 

an employee-based size standard, and 

the change to an election between a 

three-year average and a five-year 

average for applicants using a receiptsbased size standard. The tangible net 

worth and net income measures for the 

alternative size standard for SBIC 

applicants will not change. SBA has 

determined that the changes to the Form 

480 will not impact the paperwork 

burden. 

Finally, SBA will revise Part M (Size 

Analysis) of SBA Form 1920 (7(a) 

Lender Application), OMB Control No.: 

3245–0348, and Exhibit 4 of SBA Form 

1244 (504 Loan Application), OMB 

Control No.: 3245–0071. The revisions 

will reflect the change to an election 

between a three-year average or a fiveyear average for applicants using a 

receipts-based size standard. The 

tangible net worth and net income 

values for the alternative size standard 

for 7(a) and 504 applicants will not 

change. 

List of Subjects in 13 CFR Part 121 

Administrative practice and 

procedure, Government procurement, 

Government property, Grant programs— 

business, Individuals with disabilities, 

Loan programs—business, Reporting 

and recordkeeping requirements, Small 

businesses. 

For the reasons set forth in the 

preamble, SBA amends 13 CFR part 121 

as follows: 

PART 121—SMALL BUSINESS SIZE 

REGULATIONS 

■ 1. The authority citation for part 121 

continues to read as follows: 

Authority: 15 U.S.C. 632, 634(b)(6), 

636(a)(36), 662, and 694a(9); Public Law 116– 

136, Section 1114. 

■ 2. In § 121.104, revise paragraph (c) to 

read as follows: 

§ 121.104 How does SBA calculate annual 

receipts? 

* * * * * 

(c) Period of measurement. (1) Except 

for the Business Loan, Disaster Loan, 

Surety Bond Guarantee, and Small 

Business Investment Company (SBIC) 

Programs, annual receipts of a concern 

that has been in business for 5 or more 

completed fiscal years means the total 

receipts of the concern over its most 

recently completed 5 fiscal years 

divided by 5. 

(2) Except for the Business Loan, 

Disaster Loan Programs, Surety Bond 

Guarantee, and SBIC Programs, annual 

receipts of a concern which has been in 

business for less than 5 complete fiscal 

years means the total receipts for the 

period the concern has been in business 

divided by the number of weeks in 

business, multiplied by 52. 

(3) Except for the Business Loan, 

Disaster Loan, Surety Bond Guarantee, 

and SBIC Programs, where a concern 

has been in business 5 or more complete 

fiscal years but has a short year as one 

of the years within its period of 

measurement, annual receipts means 

the total receipts for the short year and 

the 4 full fiscal years divided by the 

total number of weeks in the short year 

and the 4 full fiscal years, multiplied by 

52. 

(4) For the Business Loan, Disaster 

Loan, Surety Bond Guarantee, and SBIC 

Programs, a concern that has been in 

business for three or more completed 

fiscal years may elect to calculate 

annual receipts using either the total 

receipts of the concern over its most 

recently completed 5 fiscal years 

divided by 5, or the total receipts of the 

concern over its most recently 

completed 3 fiscal years divided by 3. 

Annual receipts of a concern which has 

been in business for less than three 

complete fiscal years means the total 

receipts for the period the concern has 

been in business divided by the number 

of weeks in business, multiplied by 52. 

Where a concern has been in business 

three or more complete fiscal years but 

has a short year as one of the years 

within its period of measurement, 

annual receipts means the total receipts 

for the short year and the two full fiscal 

years divided by the total number of 

weeks in the short year and the two full 

fiscal years, multiplied by 52. For the 

purposes of this subsection, the 

Business Loan Programs consist of the 

7(a) Loan Program, the Microloan 

Program, the Intermediary Lending Pilot 

Program, and the Development 

Company Loan Program (‘‘504 Loan 

Program’’). The Disaster Loan Programs 

consist of Economic Injury Disaster 

Loans, Military Reservist Economic 

Injury Disaster Loans, and Immediate 

Disaster Assistance Program loans. 

* * * * * 

■ 3. In § 121.106, revise paragraphs 

(b)(1) and (3) to read as follows: 

§ 121.106 How does SBA calculate number 

of employees? 

* * * * * 

(b) * * * 

(1) The average number of employees 

of the concern is used (including the 

employees of its domestic and foreign 

affiliates) based upon numbers of 

employees for each of the pay periods 

for the preceding completed 24 calendar 

months. 

* * * * * 

(3) If a concern has not been in 

business for 24 months, the average 

number of employees is used for each of 

the pay periods during which it has 

been in business. 

* * * * * 

■ 4. In § 121.903, revise paragraph 

(a)(1)(i) to read as follows: 

§ 121.903 How may an agency use size 

standards for its programs that are different 

than those established by SBA? 

(a) * * * 

(1) * * * 

(i) The size of a manufacturing 

concern by its average number of 

employees based on the preceding 24 

calendar months, determined according 

to § 121.106; 

* * * * * 

Isabella Casillas Guzman, 

Administrator. 

[FR Doc. 2022–12131 Filed 6–3–22; 8:45 am] 

BILLING CODE 8026–03–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0877; Project 

Identifier AD–2020–01316–T; Amendment 

39–22049; AD 2022–10–11] 

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 747–100B 

SUD, 747–200B, 747–200C, 747–200F, 

747–300, 747SP, 747–400, 747–400D, 

and 747–400F series airplanes. This AD 

was prompted by a determination that a 

certain fastener type that penetrates the 

fuel tank walls has insufficient bond to 

the structure, and energy from a 

lightning strike or high-powered short 

circuit could cause arcing to occur at the 

ends of fasteners in the fuel tanks. This 

AD requires, for certain airplanes, 

reconfiguring the clamps of certain wire 

bundles, applying sealant to certain 

fasteners that penetrate the fuel tank 

walls, installing cushion clamps and 

polytetrafluoroethylene (TFE) sleeves, 

inspecting to determine if sealant was 

applied to certain fasteners, and 


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applying sealant if necessary. This AD 

also requires, for all airplanes, revising 

the maintenance or inspection program, 

as applicable, to incorporate new, more 

restrictive airworthiness limitations 

(AWLs). The FAA is issuing this AD to 

address the unsafe condition on these 

products. 

DATES: This AD is effective July 11, 

2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of July 11, 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– 

0877. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0877; 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: Rose 

Len, Aerospace Engineer, Propulsion 

Section, FAA, Seattle ACO Branch, 2200 

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

phone and fax: 206–231–3604; email: 

rose.len@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 747–100B SUD, 747–200B, 747– 

200C, 747–200F, 747–300, 747SP, 747– 

400, 747–400D, and 747–400F series 

airplanes. The NPRM published in the 

Federal Register on November 17, 2021 

(86 FR 64085). The NPRM was 

prompted by a determination that a 

certain fastener type that penetrates the 

fuel tank walls has insufficient bond to 

the structure, and energy from a 

lightning strike or high-powered short 

circuit could cause arcing to occur at the 

ends of fasteners in the fuel tanks. In the 

NPRM, the FAA proposed to require, for 

certain airplanes, reconfiguring the 

clamps of certain wire bundles, 

applying sealant to certain fasteners that 

penetrate the fuel tank walls, installing 

cushion clamps and TFE sleeves, 

inspecting to determine if sealant was 

applied to certain fasteners, and 

applying sealant if necessary. In the 

NPRM, the FAA also proposed to 

require, for all airplanes, revising the 

maintenance or inspection program, as 

applicable, to incorporate new, more 

restrictive AWLs. The FAA is issuing 

this AD to address arcing in the event 

of a lightning strike or high-powered 

short circuit, which could result in a 

fuel tank explosion or fire. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from 

two commenters, Air Line Pilots 

Association, International (ALPA), and 

Boeing, who supported the NPRM 

without change. 

The FAA also received comments 

from United Parcel Service (UPS), who 

supported the general actions in the 

NPRM and provided comments on the 

AWLs and the inspections specified in 

the NPRM. The FAA also received 

comments from Delta Air Lines (Delta). 

The following presents the comments 

received on the NPRM and the FAA’s 

response to each comment. 

Request To Change the NPRM to a 

Supersedure 

Delta requested that the NPRM be 

changed to a supersedure of AD 2007– 

20–01, Amendment 39–15211 (72 FR 

54533, September 26, 2007) (AD 2007– 

20–01). Delta stated that paragraph (f) of 

AD 2007–20–01 requires accomplishing 

Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 1, dated 

July 10, 2006; and Boeing Special 

Attention Service Bulletin 747–57– 

2326, dated January 4, 2007. Delta also 

stated that the NPRM would require 

new actions in accordance with the 

latest revisions of the same service 

information required in AD 2007–20– 

01. Delta concluded that it would make 

compliance simpler by having all of the 

work in one place and not split between 

multiple versions of the same bulletins, 

provided credit is given for 

accomplishment of Work Packages 1 

through 20 using previous revisions of 

Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 8, dated 

November 13, 2020. 

The FAA disagrees with the request. 

The FAA considered superseding AD 

2007–20–01 to mandate actions that are 

necessary to address Special Federal 

Aviation Regulation No. 88 (SFAR 88) 

that were unintentionally omitted from 

Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 1, dated 

July 10, 2006. However, the FAA 

reviewed Boeing Special Attention 

Service Bulletin 747–57–2327, Revision 

8, dated November 13, 2020, and 

identified AD requirements for 

additional airplane groups and work 

packages. The FAA determined that a 

stand-alone AD would be appropriate 

because the actions required by AD 

2007–20–01 have already been 

accomplished and paragraph (g) of this 

AD only applies to some of the airplanes 

identified in AD 2007–20–01. The 

additional work in Boeing Special 

Attention Service Bulletin 747–57– 

2327, Revision 8, dated November 13, 

2020, is only required for certain 

airplanes, as identified in paragraphs 

(g)(1) and (2) of this AD. In addition, the 

actions specified in paragraph (g)(3) of 

this AD, using Boeing Special Attention 

Service Bulletin 747–57–2326, Revision 

1, dated January 31, 2008, are only 

required for certain airplanes. The FAA 

has not changed this AD in this regard. 

Request To Revise Initial Compliance 

Time for an Airworthiness Limitation 

UPS requested that the initial 

compliance time in paragraph (h)(1) of 

the proposed AD be revised. UPS stated 

the compliance time should be within 

12 years after incorporation of Boeing 

Special Attention Service Bulletin 747– 

57–2327, or within 24 months after the 

effective date of this AD, whichever 

occurs later. UPS stated the initial 

compliance time for AWL 28–AWL–33 

is not stated in The Boeing Company 

747–400 Maintenance Planning Data 

(MPD) Document, Section 9, 

Airworthiness Limitations (AWLs) and 

Certification Maintenance Requirements 

(CMRs), D621U400–9, Revision 

February 2020. UPS noted that 

paragraph (h)(1) of the proposed AD 

states the initial compliance time is at 

the time in the MPD document or 

within 60 days. UPS stated that due to 

the age of the affected airplanes that 

many would have to comply within the 

60-day initial compliance time, which 

would put an undue burden on 

operators because this task requires 

extensive access common to heavy 

maintenance. 

The FAA agrees to revise the initial 

compliance time. It was not the FAA’s 


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intention to mandate the initial AWL 

No. 28–AWL–33 inspection tasks within 

60 days after the effective date of this 

AD for operators that have not yet 

incorporated AWL No. 28–AWL–33 into 

the existing maintenance or inspection 

program, as applicable. However, the 

FAA disagrees with the compliance 

time proposed by UPS. The compliance 

time for AWL No. 28–AWL–33 depends 

on whether AWL No. 28–AWL–33 has 

already been incorporated into the 

operator’s existing maintenance or 

inspection program, and on whether 

Boeing Special Attention Service 

Bulletin 747–57–2327 has been 

incorporated. AWL No. 28–AWL–33 

applies to airplanes on which Boeing 

Special Attention Service Bulletin 747– 

57–2327 has been incorporated and 

airplanes having line number 645 and 

on. The FAA has revised the initial 

compliance time in paragraph (h)(1) of 

this AD by making this distinction of 

whether AWL No. 28–AWL–33 was 

previously incorporated into the 

operator’s maintenance or inspection 

program and allowing for a 12 month 

initial compliance time if certain 

conditions apply. The FAA also revised 

the text for the initial compliance time 

in paragraph (h)(1) of this AD by 

replacing the reference to ‘‘the tasks’’ 

with a reference to ‘‘AWL No. 28–AWL– 

33’’ as it is the only task. The other 

AWL items referenced in paragraph 

(h)(1) of this AD are Critical Design 

Configuration Control Limitations 

(CDCCLs). 

In addition, the FAA has revised the 

initial compliance time for AWL No. 

28–AWL–25 in paragraph (h)(2) of this 

AD by making this distinction of 

whether AWL No. 28–AWL–25 was 

previously incorporated into the 

operator’s maintenance or inspection 

program and allowing for a 12 month 

initial compliance time if certain 

conditions apply. The compliance time 

specified in the proposed AD for AWL 

No. 28–AWL–25 has a similar issue to 

the one for AWL No. 28–AWL–33. The 

FAA did not intend to mandate the 

initial AWL No. 28–AWL–25 inspection 

task within 60 days after the effective 

date of this AD for operators that have 

not already incorporated the task into 

the operator’s existing maintenance or 

inspection program. The FAA also 

revised the text for the initial 

compliance time in paragraph (h)(2) of 

this AD by replacing the reference to 

‘‘the tasks’’ with a reference to ‘‘AWL 

No. 28–AWL–25’’ as it is the only task. 

The other AWL items referenced in 

paragraph (h)(2) of this AD are CDCCLs. 

Request To Remove Inspection for 

Sealant 

UPS requested that the FAA remove 

paragraph (g)(2) of the proposed AD 

(which includes a requirement to 

inspect and seal the ends of certain 

fasteners inside the fuel tanks). UPS 

stated that AD 2007–20–01 includes a 

requirement to seal the ends of certain 

fasteners inside the fuel tanks in 

accordance with Boeing Special 

Attention Service Bulletin 747–57– 

2327, Revision 1, dated July 10, 2006. 

UPS stated that Step 5 of Figure 23 of 

Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 1, dated 

July 10, 2006, specifies to apply the 

fillet sealant on the fastener and refers 

to certain airplane maintenance manual 

(AMM) procedures. UPS also noted that 

CDCCL 28–AWL–37, added by 

paragraph (h) of the proposed AD, only 

checks for cracked or damaged sealant. 

UPS concluded that paragraph (g)(2) 

does not provide any additional 

improvement in the condition of the 

affected airplanes from that required by 

AD 2007–20–01, and therefore should 

not be required. 

The FAA disagrees with the request. 

The purpose of paragraph (g)(2) of this 

AD is to make sure that the fillet sealant 

on identified fasteners fully 

encapsulates those fasteners. Boeing 

Special Attention Service Bulletin 747– 

57–2327, Revision 1, dated July 10, 

2006, does not specify to make sure that 

the fasteners are fully encapsulated with 

sealant. The AMM procedures are 

references only and therefore does not 

mandate that fasteners are fully 

encapsulated. Since Boeing Special 

Attention Service Bulletin 747–57– 

2327, Revision 8, dated November 13, 

2020, also does not specify to fully 

encapsulate the fasteners, the 

requirement in paragraph (g)(2) of this 

AD includes an exception that states 

where note (f) of Figure 23 specifies to 

‘‘make sure to apply the fillet sealant on 

the fastener,’’ this AD requires applying 

the fillet sealant to fully encapsulate the 

fastener penetrating the fuel tank. The 

FAA has not changed this AD in this 

regard. 

Request To Provide Credit for Previous 

Actions 

UPS requested that paragraph (j) of 

the proposed AD be revised to give 

credit for previous actions 

accomplished using Boeing Special 

Attention Service Bulletin 747–57– 

2326, Revision 1, dated January 31, 

2008. UPS stated that it performed the 

requirement to seal the ends of certain 

fasteners using Boeing Special Attention 

Service Bulletin 747–57–2326, Revision 

1, dated January 31, 2008, as an 

alternative method of compliance to AD 

2007–20–01 (which mandated Boeing 

Special Attention Service Bulletin 747– 

57–2326, dated January 4, 2007). UPS 

stated it does not believe they need to 

go back and verify that previously 

accomplished actions were done as 

directed. UPS notes that paragraph (f) of 

the proposed AD does state to comply 

with the AD unless already done, but 

paragraph (j) of the proposed AD does 

not give credit for previous actions 

accomplished using Boeing Special 

Attention Service Bulletin 747–57– 

2326, Revision 1, dated January 31, 

2008. UPS also stated that if credit is not 

given, the FAA should provide an 

explanation as to why operators need to 

go back and verify that previous AD 

required actions were accomplished as 

directed. 

The FAA agrees that operators that 

sealed the fasteners using Boeing 

Special Attention Service Bulletin 747– 

57–2326, Revision 1, dated January 31, 

2008, do not have to go back and verify 

that all fasteners identified in Figures 4 

and 5 of Boeing Special Attention 

Service Bulletin 747–57–2326, Revision 

1, dated January 31, 2008, were sealed 

in accordance with Figure 1 of that same 

service bulletin. Only airplanes on 

which the fasteners were sealed using 

Boeing Special Attention Service 

Bulletin 747–57–2326, dated January 4, 

2007, must be inspected and the 

fasteners sealed if necessary. The FAA 

has revised paragraph (g)(3) of this AD 

accordingly. 

The FAA also notes there is no need 

to provide credit in paragraph (j) of the 

AD for actions taken using Boeing 

Special Attention Service Bulletin 747– 

57–2326, Revision 1, dated January 31, 

2008, because paragraph (f) of the AD 

mandates compliance with this AD 

within the compliance times specified, 

unless already done. 

Conclusion 

The FAA reviewed the relevant data, 

considered any comments received, and 

determined that air safety requires 

adopting this AD as proposed. Except 

for minor editorial changes, and any 

other changes described previously, 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 747–57– 

2327, Revision 8, dated November 13, 

2020. This service information describes 

procedures for reconfiguring the clamps 


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of certain wire bundles, applying 

sealant to certain fasteners that 

penetrate the fuel tank walls, and 

installing cushion clamps and TFE 

sleeves on the wire bundles of the front 

spars and rear spars of the wings. 

The FAA also reviewed Boeing 

Special Attention Service Bulletin 747– 

57–2326, Revision 1, dated January 31, 

2008. This service information describes 

procedures for, among other actions, 

applying sealant to certain fasteners. 

The FAA also reviewed The Boeing 

Company 747–400 Maintenance 

Planning Data (MPD) Document, Section 

9, Airworthiness Limitations (AWLs) 

and Certification Maintenance 

Requirements (CMRs), D621U400–9, 

Revision February 2020, which includes 

revised AWL tasks 28–AWL–33, 28– 

AWL–34, and 28–AWL–37; and The 

Boeing Company 747–100/200/300/SP/ 

SR Airworthiness Limitations (AWLs) 

and Certification Maintenance 

Requirements (CMRs), D6–13747–CMR, 

Revision September 2020, which 

includes revised AWL tasks 28–AWL– 

25, 28–AWL–27, and 28–AWL–28. The 

revised AWL tasks describe fuel 

airworthiness limitation items (ALIs) 

and CDCCLs that address fuel tank 

systems. These documents are distinct 

because they apply to different airplane 

models. The new AWLs include: 

• An ALI (periodic inspections) of the 

cushion clamps and teflon sleeving 

installed on out-of-tank wire bundles 

installed on brackets that are mounted 

directly on the fuel tanks; 

• A CDCCL for the cushion clamps 

and teflon sleeving installed on out-oftank wire bundles installed on brackets 

that are mounted directly on the fuel 

tanks; and 

• A CDCCL for lightning, fault current 

or hot short protection features. 

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 104 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 

Reconfiguring clamps, inspections, applying sealant, and installing clamps 

and TFE sleeves.

Up to 30 work-hours × $85 per hour = 

Up to $2,550.

Up to $2,004 ....... Up to $4,554 ....... Up to $473,616. 

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. Therefore, the agency 

estimates the average total cost per 

operator to be $7,650 (90 work-hours × 

$85 per work-hour). 

The FAA estimates the following 

costs to do any necessary application of 

sealant that would be required based on 

the results of the inspections. The 

agency has no way of determining the 

number of aircraft that might need this 

action: 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

Applying sealant .......................................................................................................................... Up to 102 

work-hours × 

$85 per hour = 

Up to $8,670 

Up to $6,813 Up to $15,483. 

The FAA has included all known 

costs in its cost estimate. According to 

the manufacturer, however, some or all 

of the costs of this AD may be covered 

under warranty, thereby reducing the 

cost impact on affected operators. 

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. 


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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: 

2022–10–11 The Boeing Company: 

Amendment 39–22049; Docket No. 

FAA–2021–0877; Project Identifier AD– 

2020–01316–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective July 11, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 747–100B SUD, 747–200B, 747–200C, 

747–200F, 747–300, 747SP, 747–400, 747– 

400D, and 747–400F series airplanes, 

certificated in any category, having line 

numbers 645 and subsequent. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 28, Fuel; 57, Wings. 

(e) Unsafe Condition 

This AD was prompted by the FAA’s 

analysis of the fuel system reviews 

conducted by the manufacturer. The FAA is 

issuing this AD to address arcing in the event 

of a lightning strike or high-powered short 

circuit, which could result in a fuel tank 

explosion or fire. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Reconfiguration of Wire Bundle Clamps, 

Sealant Application, Installation of Clamps 

and Sleeves, Inspections, and Corrective 

Actions 

(1) For Group 1 through 9, 11, and 16 

through 45 airplanes identified in Boeing 

Special Attention Service Bulletin 747–57– 

2327, Revision 8, dated November 13, 2020: 

Within 60 months after the effective date of 

this AD, reconfigure the clamps of the 

specified wire bundles, apply sealant to the 

specified fasteners that penetrate the fuel 

tank walls, and install cushion clamps and 

polytetrafluoroethylene (TFE) sleeves on the 

wire bundles of the front spars and rear spars 

of the wings, as applicable, in accordance 

with Work Packages 13 through 21, as 

applicable, of the Accomplishment 

Instructions of Boeing Special Attention 

Service Bulletin 747–57–2327, Revision 8, 

dated November 13, 2020. 

(2) For airplanes on which the actions 

specified in Work Package 7, 8, or 9 of Boeing 

Special Attention Service Bulletin 747–57– 

2327 have been done: Within 60 months after 

the effective date of this AD, inspect to 

determine if the fillet sealant identified in 

step 5 of Figure 23 of Boeing Special 

Attention Service Bulletin 747–57–2327, 

Revision 8, dated November 13, 2020, was 

applied to fully encapsulate the fastener 

penetrating the fuel tank; and if the sealant 

does not fully encapsulate the fastener, 

before further flight, apply sealant as 

specified in step 5 of Figure 23, except where 

note (f) of Figure 23 specifies to ‘‘make sure 

to apply the fillet sealant on the fastener,’’ 

this AD requires applying the fillet sealant to 

fully encapsulate the fastener penetrating the 

fuel tank. 

(3) For Group 2 airplanes identified in 

Boeing Special Attention Service Bulletin 

747–57–2326, Revision 1, dated January 31, 

2008, on which fasteners were sealed using 

Boeing Special Attention Service Bulletin 

747–57–2326, dated January 4, 2007: Within 

60 months after the effective date of this AD, 

inspect to determine if all fasteners identified 

in Figures 4 and 5 of Boeing Special 

Attention Service Bulletin 747–57–2326, 

Revision 1, dated January 31, 2008, have 

been sealed; and if any fasteners are not 

sealed, before further flight, apply sealant in 

accordance with Figure 1 of Boeing Special 

Attention Service Bulletin 747–57–2326, 

Revision 1, dated January 31, 2008. 

(h) Maintenance or Inspection Program 

Revision 

(1) For Model 747–400, 747–400D, and 

747–400F series airplanes: Within 60 days 

after the effective date of this AD: Revise the 

existing maintenance or inspection program, 

as applicable, by incorporating the 

information in airworthiness limitations 

(AWLs) 28–AWL–33, 28–AWL–34, and 28– 

AWL–37 of The Boeing Company 747–400 

Maintenance Planning Data (MPD) 

Document, Section 9, Airworthiness 

Limitations (AWLs) and Certification 

Maintenance Requirements (CMRs), 

D621U400–9, Revision February 2020. The 

initial compliance time for doing AWL No. 

28–AWL–33, ‘‘Cushion Clamps and Teflon 

Sleeving Installed on Out-of-Tank Wire 

Bundles Installed on Brackets that are 

Mounted Directly on the Fuel Tanks,’’ is at 

the applicable time specified in paragraphs 

(h)(1)(i) or (ii) of this AD. 

(i) For airplanes that did not have any 

version of AWL No. 28–AWL–33 in the 

existing maintenance or inspection program 

before the effective date of this AD: Within 

144 months since issuance of the original 

airworthiness certificate or original export 

certificate of airworthiness, within 144 

months since Boeing Special Attention 

Bulletin 747–57–2327 was incorporated, or 

within 12 months after the effective date of 

this AD, whichever occurs latest. 

(ii) For airplanes not identified in 

paragraph (h)(1)(i) of this AD: Within 144 

months since AWL No. 28–AWL–33 was 

incorporated into the existing maintenance or 

inspection program, or within 144 months 

after the most recent inspection was 

performed as specified in AWL No. 28– 

AWL–33, whichever occurs later. 

(2) For Model 747–100B SUD, 747–200B, 

747–200C, 747–200F, 747–300, and 747SP 

series airplanes: Within 60 days after the 

effective date of this AD, revise the existing 

maintenance or inspection program, as 

applicable, by incorporating the information 

in AWLs 28–AWL–25, 28–AWL–27, and 28– 

AWL–28 of The Boeing Company 747–100/ 

200/300/SP/SR Airworthiness Limitations 

(AWLs) and Certification Maintenance 

Requirements (CMRs), D6–13747–CMR, 

Revision September 2020; except where the 

‘‘Applicability’’ of AWLs 28–AWL–25 and 

28–AWL–27 specifies ‘‘ALL’’ and ‘‘NOTE,’’ 

replace ‘‘ALL’’ and ‘‘NOTE’’ with ‘‘Airplanes 

L/N 645 and on’’ and remove the 

‘‘Applicability Note’’ from the Description 

column of 28–AWL–25 and 28–AWL–27. The 

initial compliance time for doing AWL No. 

28 AWL–25, ‘‘Cushion Clamps and Teflon 

Sleeving Installed on Out-of-Tank Wire 

Bundles Installed on Brackets that are 

Mounted Directly on the Fuel Tanks,’’ is at 

the applicable time specified in paragraphs 

(h)(2)(i) or (ii) of this AD. 

(i) For airplanes that did not have any 

version of AWL No. 28–AWL–25 in the 

existing maintenance or inspection program 

before the effective date of this AD: Within 

144 months since issuance of the original 

airworthiness certificate or original export 

certificate of airworthiness, within 144 

months since Boeing Special Attention 

Bulletin 747–57–2327 was incorporated, or 

within 12 months after the effective date of 

this AD, whichever occurs latest. 

(ii) For airplanes not identified in 

paragraph (h)(2)(i) of this AD: Within 144 

months since AWL No. 28–AWL–25 was 

incorporated into the maintenance or 

inspection program, or within 144 months 

after the most recent inspection was 

performed as specified in AWL No. 28– 

AWL–25, whichever occurs later. 

(i) No Alternative Actions, Intervals, and 

Critical Design Configuration Control 

Limitations (CDCCLs) 

After the maintenance or inspection 

program has been revised as required by 

paragraph (h)(1) or (2) of this AD, no 

alternative actions (e.g., inspections), 

intervals, and CDCCLs may be used unless 

the actions, intervals, and CDCCLs are 

approved as an alternative method of 

compliance (AMOC) in accordance with the 

procedures specified in paragraph (k) of this 

AD. 

(j) Credit for Previous Actions 

(1) This paragraph provides credit for the 

Work Package 13 actions specified in 

paragraph (g)(1) of this AD, if those actions 

were performed before the effective date of 

this AD using the service information 

specified in paragraphs (j)(1)(i) through (iv) 

of this AD. 


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Federal Register / Vol. 87, No. 108 / Monday, June 6, 2022 / Rules and Regulations 34125 

(i) Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 4, dated 

August 26, 2010. 

(ii) Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 5, dated 

September 20, 2011. 

(iii) Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 6, dated 

February 21, 2013. 

(iv) Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 7, dated 

November 30, 2017. 

(2) This paragraph provides credit for the 

Work Package 14, 15, and 16 actions 

specified in paragraph (g)(1) of this AD, if 

those actions were performed before the 

effective date of this AD using the service 

information specified in paragraphs (j)(2)(i) 

through (iii) of this AD. 

(i) Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 5, dated 

September 20, 2011. 

(ii) Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 6, dated 

February 21, 2013. 

(iii) Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 7, dated 

November 30, 2017. 

(3) This paragraph provides credit for the 

Work Package 17 actions specified in 

paragraph (g)(1) of this AD, if those actions 

were performed before the effective date of 

this AD using the service information 

specified in paragraphs (j)(3)(i) or (ii) of this 

AD. 

(i) Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 6, dated 

February 21, 2013. 

(ii) Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 7, dated 

November 30, 2017. 

(4) This paragraph provides credit for the 

Work Package 18, 19, and 20 actions 

specified in paragraph (g)(1) of this AD, if 

those actions were performed before the 

effective date of this AD using Boeing Special 

Attention Service Bulletin 747–57–2327, 

Revision 7, dated November 30, 2017. 

(k) 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 paragraph (l)(1) of 

this AD. Information may be emailed to: 9- 

ANM-Seattle-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. 

(l) Related Information 

(1) For more information about this AD, 

contact Rose Len, Aerospace Engineer, 

Propulsion Section, FAA, Seattle ACO 

Branch, 2200 South 216th St., Des Moines, 

WA 98198; phone and fax: 206–231–3604; 

email: rose.len@faa.gov. 

(2) Service information identified in this 

AD that is not incorporated by reference is 

available at the addresses specified in 

paragraphs (m)(3) and (4) of this AD. 

(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 the AD specifies otherwise. 

(i) Boeing Special Attention Service 

Bulletin 747–57–2326, Revision 1, dated 

January 31, 2008. 

(ii) Boeing Special Attention Service 

Bulletin 747–57–2327, Revision 8, dated 

November 13, 2020. 

(iii) The Boeing Company 747–100/200/ 

300/SP/SR Airworthiness Limitations 

(AWLs) and Certification Maintenance 

Requirements (CMRs), D6–13747–CMR, 

Revision September 2020. 

(iv) The Boeing Company 747–400 

Maintenance Planning Data (MPD) 

Document, Section 9, Airworthiness 

Limitations (AWLs) and Certification 

Maintenance Requirements (CMRs), 

D621U400–9, Revision February 2020. 

(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. You may view this 

service information at the FAA, 

Airworthiness Products Section, Operational 

Safety Branch, 2200 South 216th St., Des 

Moines, WA. 

(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 May 6, 2022. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2022–12030 Filed 6–3–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0596; Project 

Identifier MCAI–2022–00150–T; Amendment 

39–22073; AD 2022–12–02] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc., Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Bombardier, Inc., Model BD–100–1A10 

airplanes. This AD was prompted by a 

report of multiple in-service events 

where, following a STAB TRIM FAULT 

advisory message and auto-pilot 

disconnect, flightcrew commands for a 

nose-up trim resulted in nose-down trim 

movement of the horizontal stabilizer 

instead. This AD requires revising the 

existing airplane flight manual (AFM) to 

provide the flightcrew with instructions 

for an expanded pre-flight check of the 

pitch trim, trim malfunction procedures, 

and revised ‘‘AP STAB TRIM FAIL’’ 

caution and ‘‘STAB TRIM FAULT’’ 

advisory procedures. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD becomes effective June 

21, 2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of June 21, 2022. 

The FAA must receive comments on 

this AD by July 21, 2022. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

https://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: 202–493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this final rule, contact Bombardier 


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