Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations 10747 

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. Send 

information to Doug Rudolph, Aviation 

Safety Engineer, General Aviation & 

Rotorcraft Section, International Validation 

Branch, FAA, 901 Locust, Room 301, Kansas 

City, Missouri 64106; phone: (816) 329–4059; 

fax: (816) 329–4090; email: 

doug.rudolph@faa.gov. Before using any 

approved AMOC on any airplane to which 

the AMOC applies, notify your appropriate 

principal inspector (PI) in the FAA Flight 

Standards District Office (FSDO), or lacking 

a PI, your local FSDO. 

(h) Related Information 

(1) Refer to MCAI European Union 

Aviation Safety Agency AD No. 2019–0231, 

dated September 13, 2019, for related 

information. You may examine the MCAI at 

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

and locating Docket No. FAA–2020–0813. 

(2) For service information related to this 

AD, contact Pilatus Aircraft, Ltd., Customer 

Support PC–12, CH–6371 Stans, Switzerland; 

phone: +41 41 619 33 33; fax: +41 41 619 73 

11; email: supportPC12@pilatus-aircraft.com; 

website: https://www.pilatus-aircraft.com. 

You may review this referenced service 

information at the FAA, Airworthiness 

Products Section, Operational Safety Branch, 

901 Locust, Kansas City, Missouri 64106. For 

information on the availability of this 

material at the FAA, call (816) 329–4148. 

(i) 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 the AD specifies otherwise. 

(i) Pilatus Service Bulletin No: 27–026, 

dated July 10, 2019. 

(ii) [Reserved] 

(3) For Pilatus Aircraft Ltd. service 

information identified in this AD, contact 

Pilatus Aircraft, Ltd., Customer Support PC– 

12, CH–6371 Stans, Switzerland; phone: +41 

41 619 33 33; fax: +41 41 619 73 11; email: 

supportPC12@pilatus-aircraft.com; website: 

https://www.pilatus-aircraft.com. 

(4) You may view this service information 

at FAA, Airworthiness Products Section, 

Operational Safety Branch, 901 Locust, 

Kansas City, Missouri 64106. For information 

on the availability of this material at the 

FAA, call (816) 329–4148. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

email: fedreg.legal@nara.gov, or go to: 

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

ibr-locations.html. 

Issued on January 6, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–03476 Filed 2–22–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2020–0843; Product 

Identifier 2020–NM–073–AD; Amendment 

39–21420; AD 2021–03–17] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc., Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Bombardier, Inc., Model BD–700–1A10 

airplanes. This AD was prompted by a 

report of smoke and signs of an 

overheating condition from the 

emergency light battery (ELB) due to 

excessive corrosion surrounding the 

internal lead acid batteries, which 

caused an electrical short circuit that 

led to the smoke and overheating 

condition. This AD requires an 

inspection to determine the last 

replacement date of the ELB, and 

replacement if necessary. This AD also 

requires the incorporation of a new 

maintenance task into the existing 

maintenance or inspection program. The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective March 30, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of March 30, 2021. 

ADDRESSES: For service information 

identified in this final rule, contact 

Bombardier, Inc., 400 Coˆte-Vertu Road 

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

telephone 514–855–5000; fax 514–855– 

7401; email ac.yul@

aero.bombardier.com; internet https://

www.bombardier.com. You may view 

this service information at the FAA, 

Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th St., Des Moines, WA. For 

information on the availability of this 

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

It is also available on the internet at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2020–0843. 

Examining the AD Docket 

You may examine the AD docket on 

the internet at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2020– 

0843; 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: 

Thomas Niczky, Aerospace Engineer, 

Avionics and Electrical Systems 

Section, FAA, New York ACO Branch, 

1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; telephone 516– 

228–7347; fax 516–794–5531; email 9- 

avs-nyaco-cos@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued Canadian AD 

CF–2020–07, dated March 17, 2020 (also 

referred to as the Mandatory Continuing 

Airworthiness Information, or the 

MCAI), to correct an unsafe condition 

for certain Bombardier, Inc., Model BD– 

700–1A10 airplanes. You may examine 

the MCAI in the AD docket on the 

internet at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2020–0843. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain Bombardier, Inc., Model 

BD–700–1A10 airplanes. The NPRM 

published in the Federal Register on 

September 17, 2020 (85 FR 58010). The 

NPRM was prompted by a report of 

smoke and signs of an overheating 

condition from the ELB due to excessive 

corrosion surrounding the internal lead 

acid batteries, which caused an 

electrical short circuit that led to the 

smoke and overheating condition. The 

NPRM proposed to require an 

inspection to determine the last 

replacement date of the ELB, and 

replacement if necessary. The NPRM 

also proposed to require the 

incorporation of a new maintenance 

task into the existing maintenance or 

inspection program. The FAA is issuing 

this AD to address smoke and an 

overheating condition of the ELB due to 

corrosion, which could cause fire 

onboard the airplane. See the MCAI for 

additional background information. 

Comments 

The FAA gave the public the 

opportunity to participate in developing 

this final rule. The following presents 

the comment received on the NPRM and 

the FAA’s response to that comment. 

10748 Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations 

Request To Update Bombardier Email 

Address 

Bombardier requested that the FAA 

revise the NPRM to update the email 

address for obtaining the specified 

service information from ‘‘thd.crj@

aero.bombardier.com’’ to ‘‘ac.yul@

aero.bombardier.com.’’ 

The FAA agrees with the request and 

has revised this final rule accordingly. 

Clarifications of Compliance Times 

The FAA has revised paragraph (g) of 

this AD to clarify when replacement is 

required. This clarification explains that 

replacement is required if, during the 

inspection required by paragraph (g) of 

this AD, any last replacement date or 

manufacturing date is found to be 4 

years or older. 

The FAA has also revised paragraph 

(h)(2) of this AD to clarify that the 

compliance time of within 48 months is 

related to the applicable date specified 

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

The proposed AD inadvertently stated 

that the compliance time was ‘‘[w]ithin 

48 months after the applicable 

compliance time specified in paragraph 

(h)(2)(i) or (ii) of this AD,’’ but 

paragraphs (h)(2)(i) and (ii) of this AD 

specify dates, not compliance times. 

Conclusion 

The FAA reviewed the relevant data, 

considered the comment received, and 

determined that air safety and the 

public interest require adopting this 

final rule with the changes described 

previously and minor editorial changes. 

The FAA has determined that these 

minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM for 

addressing the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM. 

The FAA also determined that this 

change will not increase the economic 

burden on any operator or increase the 

scope of this final rule. 

Related Service Information Under 1 

CFR Part 51 

Bombardier has issued Service 

Bulletin 700–33–024, dated May 13, 

2019. This service information describes 

procedures for an inspection to 

determine the last battery replacement 

date of the ELB, and replacement if 

necessary. 

Bombardier also issued the following 

service information. 

• Global Express BD–700 

Supplemental Time Limits/Maintenance 

Checks (STLMC) Temporary Revision 

(TR) 05–19091701, dated September 17, 

2019. 

• Global Express BD–700 STLMC TR 

05–19091704, dated September 17, 

2019. 

• Global Express XRS BD–700 

STLMC TR 05–19091705, dated 

September 17, 2019. 

These documents describe an 

amendment to the aircraft maintenance 

schedule to include STLMC Chapter 5 

task number 33–51–54–603, 

‘‘Restoration of the Emergency Lighting 

Batteries (XL245–B Emergency Battery 

System),’’ and are distinct since they 

apply to different airplane serial 

numbers. 

This service information is reasonably 

available because the interested parties 

have access to it through their normal 

course of business or by the means 

identified in the ADDRESSES section. 

Costs of Compliance 

The FAA estimates that this AD 

affects 69 airplanes of U.S. registry. The 

FAA estimates the following costs to 

comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

3 work-hours × $85 per hour = $255 .......................................................................................... $11,308 $11,563 $797,847 

The FAA has determined that revising 

the existing maintenance or inspection 

program takes an average of 90 workhours per operator, although the FAA 

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 FAA estimates 

the total cost per operator to be $7,650 

(90 work-hours × $85 per work-hour). 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, and 

(3) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations 10749 

2021–03–17 Bombardier, Inc.: Amendment 

39–21420; Docket No. FAA–2020–0843; 

Product Identifier 2020–NM–073–AD. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective March 30, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bombardier, Inc., 

Model BD–700–1A10 airplanes, certificated 

in any category, serial numbers 9002, 9003, 

9011, 9016, 9020, 9022 through 9025 

inclusive, 9029, 9031, 9032, 9036, 9039 

through 9044 inclusive, 9046 through 9058 

inclusive, 9060 through 9065 inclusive, 9067 

through 9081 inclusive, 9083 through 9106 

inclusive, 9108 through 9122 inclusive, 9124 

through 9126 inclusive, 9128, 9129, 9133, 

9134, 9136 through 9139 inclusive, 9141 

through 9148 inclusive, 9150, 9151, 9153, 

9159, 9162, 9163, 9165, and 9169. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 33, Lights. 

(e) Reason 

This AD was prompted by a report of 

smoke and signs of an overheating condition 

from the emergency light battery (ELB) due 

to excessive corrosion surrounding the 

internal lead acid batteries, which caused an 

electrical short circuit that led to the smoke 

and overheating condition. The FAA is 

issuing this AD to address such conditions, 

which could cause fire onboard the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection and Corrective Action 

Within 15 months after the effective date 

of this AD, inspect the ELB to determine the 

last replacement date or the manufacturing 

date, as applicable; if during this inspection, 

any date is found to be 4 years or older, 

replace the ELB before further flight. Do the 

actions in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 700–33–024, dated May 13, 

2019. For airplanes on which the restoration 

task specified in paragraph (h) of this AD was 

done before the effective date of this AD, the 

requirements of paragraph (g) of this AD are 

not required. 

(h) Maintenance or Inspection Program 

Revision 

Within 60 days after the effective date of 

this AD, revise the existing maintenance or 

inspection program, as applicable, to include 

the information specified in Bombardier BD– 

700 Supplemental Time Limits/Maintenance 

Checks (STLMC) Chapter 5 task number 33– 

51–54–603, ‘‘Restoration of the Emergency 

Lighting Batteries (XL245–B Emergency 

Battery System),’’ in the Bombardier BD–700 

STLMC, as specified in the applicable 

temporary revision identified in figure 1 to 

paragraph (h) of this AD. The initial 

compliance time for doing task 33–51–54– 

603 is at the applicable time specified in 

paragraph (h)(1) or (2) of this AD. Repeat task 

33–51–54–603 thereafter at the interval 

specified within that task. 

(1) If both ELBs were replaced at the time 

of compliance with paragraph (g) of this AD: 

Within 48 months after the ELB replacement. 

(2) If neither ELB, or only one ELB, was 

replaced at the time of compliance with 

paragraph (g) of this AD: Within 48 months 

after the applicable date specified in 

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

(i) For each ELB, use the battery 

replacement date, if it is indicated. 

(ii) For each ELB, use the date of 

manufacture, if it does not have a battery 

replacement date indicated. 

(i) Misidentified Restoration Task 

The following temporary revisions 

misidentified the required restoration task as 

task ‘‘33–51–54–602.’’ 

(1) Bombardier Global Express XRS BD– 

700 STLMC Temporary Revision 05– 

19032701, dated March 27, 2019. 

(2) Bombardier Global Express BD–700 

STLMC Temporary Revision 05–19040301, 

dated April 3, 2019. 

(3) Bombardier Global Express BD–700 

STLMC Temporary Revision 05–19040401, 

dated April 4, 2019. 

(j) Compliance With Restoration Task for 

Airplanes On Which the Misidentified Task 

Was Accomplished 

For airplanes on which the restoration task 

specified as task ‘‘33–51–54–602’’ in the 

applicable temporary revision identified in 


ER23FE21.015</GPH>
10750 Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations 

paragraph (i) of this AD was done before the 

effective date of this AD: 

(1) The actions specified in paragraph (g) 

of this AD are not required. 

(2) The initial accomplishment of the task 

specified in paragraphs (h)(1) and (2) of this 

AD is not required. 

(3) Task 33–51–54–603 must be done 

within 48 months after task ‘‘33–51–54–602’’ 

was accomplished, and thereafter at the 

intervals specified in task 33–51–54–603. 

(k) No Alternative Actions and Intervals 

After the existing maintenance or 

inspection program has been revised as 

required by paragraph (h) of this AD, no 

alternative actions (e.g., inspections) and 

intervals may be used unless the actions and 

intervals are approved as an alternative 

method of compliance (AMOC) in 

accordance with the procedures specified in 

paragraph (l)(1) of this AD. 

(l) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York ACO 

Branch, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

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 certification office, 

send it to ATTN: Program Manager, 

Continuing Operational Safety, FAA, New 

York ACO Branch, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; telephone 

516–228–7300; fax 516–794–5531. Before 

using any approved AMOC, notify your 

appropriate principal inspector, or lacking a 

principal inspector, the manager of the local 

flight standards district office/certificate 

holding district office. 

(2) Contacting the Manufacturer: For any 

requirement in this AD to obtain instructions 

from a manufacturer, the instructions must 

be accomplished using a method approved 

by the Manager, New York ACO Branch, 

FAA; or Transport Canada Civil Aviation 

(TCCA); or Bombardier’s TCCA Design 

Approval Organization (DAO). If approved by 

the DAO, the approval must include the 

DAO-authorized signature. 

(m) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) Canadian 

AD CF–2020–07, dated March 17, 2020, for 

related information. This MCAI may be 

found in the AD docket on the internet at 

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

and locating Docket No. FAA–2020–0843. 

(2) For more information about this AD, 

contact Thomas Niczky, Aerospace Engineer, 

Avionics and Electrical Systems Section, 

FAA, New York ACO Branch, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 11590; 

telephone 516–228–7347; fax 516–794–5531; 

email 9-avs-nyaco-cos@faa.gov. 

(n) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

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

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) Bombardier Service Bulletin 700–33– 

024, dated May 13, 2019. 

(ii) Bombardier Global Express BD–700 

Supplemental Time Limits/Maintenance 

Checks (STLMC) Temporary Revision (TR) 

05–19091701, dated September 17, 2019. 

(iii) Bombardier Global Express BD–700 

STLMC TR 05–19091704, dated September 

17, 2019. 

(iv) Bombardier Global Express XRS BD– 

700 STLMC TR 05–19091705, dated 

September 17, 2019. 

(3) For service information identified in 

this AD, contact Bombardier, Inc., 400 CoˆteVertu Road West, Dorval, Que ́bec H4S 1Y9, 

Canada; telephone 514–855–5000; fax 514– 

855–7401; email ac.yul@

aero.bombardier.com; internet https://

www.bombardier.com. 

(4) You may view this service information 

at the FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 216th 

St., Des Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

email fedreg.legal@nara.gov, or go to: https:// 

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

Issued on January 29, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–03574 Filed 2–22–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2020–0211; Product 

Identifier 2020–NM–006–AD; Amendment 

39–21398; AD 2021–02–15] 

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 747–100, 

747–100B, 747–100B SUD, 747–200B, 

747–200C, 747–200F, 747–300, 747– 

400, 747–400D, 747–400F, and 747SR 

series airplanes. This AD was prompted 

by reports of inboard foreflap departures 

from the airplane. This AD requires 

repetitive replacement of certain parts; a 

general visual inspection to determine 

production configuration for certain 

parts; a repetitive lubrication of certain 

parts and a repetitive general visual 

inspection of certain parts for any 

exuding grease; repetitive detailed 

inspections of certain parts for loose or 

missing attachment bolts, cracks or 

bushing migration, cracks or gouges, or 

broken, binding, or missing rollers; 

repetitive detailed inspections of certain 

parts for cracks or corrosion; repetitive 

lubrication; and on-condition actions if 

necessary. The FAA is issuing this AD 

to address the unsafe condition on these 

products. 

DATES: This AD is effective March 30, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of March 30, 2021. 

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; 

phone: 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 on the internet at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2020–0211. 

Examining the AD Docket 

You may examine the AD docket on 

the internet at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2020– 

0211; 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: Eric 

Lin, Aerospace Engineer, Airframe 

Section, FAA, Seattle ACO Branch, 2200 

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

phone and fax: 206–231–3523; email: 

eric.lin@faa.gov. 

SUPPLEMENTARY INFORMATION: