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Federal Register / Vol. 86, No. 231 / Monday, December 6, 2021 / Rules and Regulations document defining the application process for the molybdenum coating.
Note 1 to paragraph g4: Temporary Revision 72494, dated August 15, 2017, specifies applying a dry film lubricant on the mating surfaces of the fan hub and the fan blades. The lubricating solid for this dry film lubricant is molybdenum disulfide, which is referred to in this AD as molybdenum coating.
5 For each fan vibration level reported, the fan hub serial number and hours TIS for this fan hub.
6 Installation date and service bulletin SB revision level for the installation of the bracket assembly with fuel flow meter and hose if installed before the effective date of this AD.
7 Any failures of the bracket assembly with fuel flow meter and hose installed in accordance with any SB listed in paragraph h of this AD or any prior revision of these SBs.
8 Installation date and SB revision level used for installation of the fuel control screws within the engine fuel control in accordance with Honeywell SB TFE73173
5146.
9 Any failures of fuel control screws after compliance with Honeywell SB TFE73173
5146.

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h Replacement Within 12 months after the effective date of this AD or 750 hours TIS after the effective date of this AD, whichever occurs first, replace the engine fuel flow meter bracket in accordance with the Accomplishment Instructions, paragraphs 3.A through 3.C, of the following Bombardier SB, listed in paragraphs h1 through 4 of this AD, applicable to your airplane model configuration.
1 Bombardier Learjet 40 SB 407301, Revision 1, dated January 9, 2017.
2 Bombardier Learjet 45 SB 45732
Revision 1, dated January 9, 2017.
3 Bombardier Learjet 70 SB 707301
Revision 1, dated January 9, 2017.
4 Bombardier Learjet 75 SB 757301, Revision 2, dated January 9, 2017.
i Credit for Previous Actions 1 This paragraph provides credit for the action required by paragraph h of this AD, if that action was performed before the effective date of this AD using Bombardier Learjet 40 SB 407301, Basic Issue;
Bombardier Learjet 45 Service Bulletin SB
45732, Basic Issue; Bombardier Learjet 70
SB 707301, Basic Issue; or Bombardier Learjet 75 SB 757301, Basic Issue; all dated October 3, 2016; or Bombardier Learjet 75 SB
757301, Revision 1, dated October 10, 2016.
2 To take credit for any previous action, you must comply with paragraph g of this AD within 60 days after the effective date of this AD.
j Alternative Methods of Compliance AMOCs 1 The Manager, Wichita 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
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principal inspector or local Flight Standards District 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 k of this AD.
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.
k Related Information For more information about this AD, contact Thomas Teplik, Aviation Safety Engineer, Wichita ACO Branch, FAA, 1801 S.
Airport Road, Wichita, KS 67209; phone:
316 9464196; email: thomas.teplik@
faa.gov.
l 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. 552a 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 Bombardier Learjet 40 Service Bulletin 407301, Revision 1, dated January 9, 2017.
ii Bombardier Learjet 45 Service Bulletin 45732 Revision 1, dated January 9, 2017.
iii Bombardier Learjet 70 Service Bulletin 707301 Revision 1, dated January 9, 2017.
iv Bombardier Learjet 75 Service Bulletin 757301, Revision 2, dated January 9, 2017.
3 For service information identified in this AD, contact Learjet Inc., One Learjet Way, Wichita, KS 67209; phone: 316 946
2000; email: ac.ict@aero.bombardier.com;
website: https businessaircraft.bombardier.
com/en/aircraft/Learjet.html.
4 You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call 816 3294148.
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: fr.inspection@nara.gov, or go to:
https www.archives.gov/federal-register/cfr/
ibr-locations.html.
Issued on November 1, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202126331 Filed 12321; 8:45 am BILLING CODE 491013P

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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210691; Project Identifier MCAI202001542T; Amendment 3921812; AD 20212314
RIN 2120AA64

Airworthiness Directives; Bombardier, Inc., Airplanes Federal Aviation Administration FAA, Department of Transportation DOT.
ACTION: Final rule.
AGENCY:

The FAA is adopting a new airworthiness directive AD for certain Bombardier, Inc., Model BD1001A10
airplanes. This AD was prompted by reports of erratic electrical system status on the push button annunciators PBAs and the engine instrument and crew alerting system EICAS. This AD
requires revising the existing airplane flight manual AFM to incorporate procedures to be applied during erroneous electrical status indication conditions. The FAA is issuing this AD
to address the unsafe condition on these products.
DATES: This AD is effective January 10, 2022.
The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD
as of January 10, 2022.
ADDRESSES: For service information identified in this final rule, contact Bombardier, Inc., 200 Cote-Vertu Road West, Dorval, Quebec H4S 2A3, Canada;
North America toll-free telephone 1
8665381247 or direct-dial telephone 15148552999; 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 2062313195.
It is also available on the internet at https www.regulations.gov by searching for and locating Docket No.
FAA20210691.
SUMMARY:

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. FAA2021
0691; 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,
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