Federal Register / Vol. 86, No. 171 / Wednesday, September 8, 2021 / Rules and Regulations 50237 

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 (k) 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. 

(k) Related Information 

For more information about this AD, 

contact Kristi Bradley, Program Manager, 

COS Program Management Section, 

Operational Safety Branch, Compliance & 

Airworthiness Division, FAA, 10101 

Hillwood Pkwy., Fort Worth, TX 76177; 

telephone (817) 222–5110; email 

kristin.bradley@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

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

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) European Aviation Safety Agency 

(EASA) AD 2018–0006, dated January 10, 

2018. 

(ii) [Reserved] 

(3) For EASA AD 2018–0006, contact the 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 8999 

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

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

EASA AD on the EASA website at https://

ad.easa.europa.eu. 

(4) You may view this 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–2021–0383. 

(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 July 26, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–19249 Filed 9–7–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0377; Project 

Identifier MCAI–2021–00380–R; Amendment 

39–21674; AD 2021–16–12] 

RIN 2120–AA64 

Airworthiness Directives; Bell Textron 

Canada Limited Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Bell Textron Canada Limited Model 505 

helicopters. This AD was prompted by 

three occurrences of metallic debris in 

the engine oil lubrication system 

causing the 12 volts direct current 

(VDC) reference voltage to be shorted to 

ground and loss of important flight 

information to the pilot. This AD 

requires replacing a certain partnumbered relay panel assembly. The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective October 13, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain document listed in this AD 

as of October 13, 2021. 

ADDRESSES: For service information 

identified in this final rule, contact Bell 

Textron Canada Limited, 12,800 Rue de 

l’Avenir, Mirabel, Quebec J7J1R4, 

Canada; telephone (450) 437–2862 or 

(800) 363–8023; fax (450) 433–0272; 

email productsupport@bellflight.com; or 

at https://www.bellflight.com/support/ 

contact-support. You may view the 

referenced 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. It is also available 

at https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0377. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0377; or in person at Docket 

Operations between 9 a.m. and 5 p.m., 

Monday through Friday, except Federal 

holidays. The AD docket contains this 

final rule, the Transport Canada AD, any 

comments received, and other 

information. The street 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: Hal 

Jensen, Aerospace Engineer, Operational 

Safety Branch, Compliance & 

Airworthiness Division, FAA, 950 

L’Enfant Plaza N SW, Washington, DC 

20024; telephone (202) 267–9167; email 

hal.jensen@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 Bell Textron Canada Limited 

Model 505 helicopters, with serial 

numbers 65011 through 65023 

inclusive, 65025 through 65028 

inclusive, 65030 through 65032 

inclusive, 65034, and 65036 with relay 

panel assembly part number (P/N) SLS– 

075–002–107 installed. The NPRM 

published in the Federal Register on 

May 25, 2021 (86 FR 28038). In the 

NPRM, the FAA proposed to require 

replacing relay panel assembly part 

number P/N SLS–075–002–107 with 

relay panel assembly P/N SLS–075– 

002–109. The NPRM also proposed to 

prohibit installing relay panel assembly 

P/N SLS–075–002–107 on any 

helicopter. The NPRM was prompted by 

Canadian AD CF–2017–36, dated 

December 15, 2017 (Canadian AD CF– 

2017–36), issued by Transport Canada, 

which is the aviation authority for 

Canada, to correct an unsafe condition 

for Bell Helicopter Textron Canada 

Limited (BHTCL) (now Bell Textron 

Canada Limited) Model 505 helicopters 

serial numbers 65011 through 65023, 

65025 through 65028, 65030 through 

65032, 65034, and 65036. Transport 

Canada advises of three occurrences of 

metallic debris in the engine oil 

lubrication system of the Model 505 

helicopter causing the Garmin Engine 

Airframe (GEA) 12 VDC reference 

voltage to be shorted to ground. This 

short to ground results in loss of display 

of important flight information 

including the main rotor rotations per 

minute (Nr), fuel quantity, and 

transmission oil pressure and 

temperature, and the generator voltage 

and ammeter parameters are marked 

invalid with a red ‘‘X’’ on the primary 

flight display (PFD) and the multifunction display (MFD). This condition, 

if not addressed, could result in loss of 

caution, advisory, and system 

performance indications for multiple 

helicopter systems, particularly when 


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50238 Federal Register / Vol. 86, No. 171 / Wednesday, September 8, 2021 / Rules and Regulations 

the initiating event may be the 

activation of the engine chip detector. 

Accordingly, Canadian AD CF–2017– 

36 requires replacing relay panel 

assembly P/N SLS–075–002–107 with 

relay panel assembly P/N SLS–075– 

002–109. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the costs. 

Conclusion 

These helicopters have been approved 

by the aviation authority of Canada and 

are approved for operation in the United 

States. Pursuant to the FAA’s bilateral 

agreement with Canada, Transport 

Canada, its technical representative, has 

notified the FAA of the unsafe condition 

described in its AD. The FAA reviewed 

the relevant data and determined that 

air safety requires adopting this AD as 

proposed. Accordingly, the FAA is 

issuing this AD to address the unsafe 

condition on these helicopters. Except 

for minor editorial changes and 

updating the email and website 

addresses for Bell Textron Canada 

Limited throughout this document, this 

AD is adopted as proposed in the 

NPRM. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed Bell Helicopter 

Alert Service Bulletin 505–17–04, dated 

December 6, 2017 (ASB 505–17–04). 

ASB 505–17–04 specifies procedures for 

replacing relay panel assembly P/N 

SLS–075–002–107 with relay panel 

assembly P/N SLS–075–002–109. ASB 

505–17–04 also specifies procedures for 

accomplishing a functional test of the 

two engine electrical magnetic plugs 

and provides a notice to ensure 505– 

FM–1 (TR–2) is inserted into the flight 

manual. 

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. 

Differences Between This AD and the 

Transport Canada AD 

Canadian AD CF–2017–36 requires 

replacing the relay panel assembly 

within 25 hours air time or 30 days, 

whichever occurs first, whereas this AD 

requires that replacement within 25 

hours time-in-service instead. Canadian 

AD CF–2017–36 applies to certain 

serial-numbered Model 505 helicopters, 

whereas this AD applies to certain 

serial-numbered Model 505 helicopters 

with relay panel assembly P/N SLS– 

075–002–107 installed instead. 

Costs of Compliance 

The FAA estimates that this AD 

affects 3 helicopters of U.S. Registry. 

The FAA estimates that operators may 

incur the following costs in order to 

comply with this AD. Labor costs are 

estimated at $85 per work-hour. 

Replacing each relay panel assembly 

takes about 3 work-hours and parts cost 

$7,079 for an estimated cost of $7,334 

per helicopter and $22,002 for the U.S. 

fleet. 

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 helicopters 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: 

2021–16–12 Bell Textron Canada Limited: 

Amendment 39–21674; Docket No. 

FAA–2021–0377; Project Identifier 

MCAI–2021–00380–R. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective October 13, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bell Textron Canada 

Limited Model 505 helicopters, certificated 

in any category, with serial numbers (S/Ns) 

65011 through 65023 inclusive, 65025 

through 65028 inclusive, 65030 through 

65032 inclusive, 65034, and 65036 with relay 

panel assembly part number (P/N) SLS–075– 

002–107 installed. 

Note 1 to paragraph (c): Helicopters with 

S/Ns 65011 through 65023 inclusive, 65025 

through 65028 inclusive, 65030 through 

65032 inclusive, 65034, and 65036 are 

known to have had relay panel assembly P/ 

N SLS–075–002–107 installed during 

production. 

(d) Subject 

Joint Aircraft Service Component (JASC) 

Code: 3110, Instrument Panel. 

(e) Unsafe Condition 

This AD was prompted by three 

occurrences of metallic debris in the engine 

oil lubrication system causing a short to 

ground within the engine chip detector. The 

FAA is issuing this AD to prevent failure of 

the 12 volts direct current (VDC) reference 

voltage, loss of display of important flight 

information to the pilot including the main 

rotor rotations per minute (Nr), fuel quantity, 

and transmission oil pressure and 

temperature, and the generator voltage and 

ammeter parameters as marked invalid with 

a red ‘‘X’’ on the primary flight display (PFD) 

and the multi-function display (MFD). The 

unsafe condition, if not addressed, could 

result in simultaneous loss of caution, 

advisory, and system performance indicators 

for multiple systems. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 


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Federal Register / Vol. 86, No. 171 / Wednesday, September 8, 2021 / Rules and Regulations 50239 

(g) Required Actions 

(1) Within 25 hours time-in-service after 

the effective date of this AD, replace relay 

panel assembly P/N SLS–075–002–107 with 

relay panel assembly P/N SLS–075–002–109 

by following the Accomplishment 

Instructions, paragraphs 1.a. through 3, of 

Bell Helicopter Alert Service Bulletin 505– 

17–04, dated December 6, 2017. 

(2) As of the effective date of this AD, do 

not install relay panel assembly P/N SLS– 

075–002–107 on any helicopter. 

(h) 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 (i)(1) 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. 

(i) Related Information 

(1) For more information about this AD, 

contact Hal Jensen, Aerospace Engineer, 

Operational Safety Branch, Compliance & 

Airworthiness Division, FAA, 950 L’Enfant 

Plaza N SW, Washington, DC 20024; 

telephone (202) 267–9167; email hal.jensen@

faa.gov. 

(2) The subject of this AD is addressed in 

Transport Canada AD CF–2017–36, dated 

December 15, 2017. You may view the 

Transport Canada AD at https://

www.regulations.gov in Docket No. FAA– 

2021–0377. 

(j) 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) Bell Helicopter Alert Service Bulletin 

505–17–04, dated December 6, 2017. 

(ii) [Reserved] 

(3) For Bell Helicopter service information 

identified in this AD, contact Bell Textron 

Canada Limited, 12,800 Rue de l’Avenir, 

Mirabel, Quebec J7J1R4, Canada; telephone 

(450) 437–2862 or (800) 363–8023; fax (450) 

433–0272; email productsupport@

bellflight.com; or at https://

www.bellflight.com/support/contact-support. 

(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. 

(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 July 27, 2021. 

Ross Landes, 

Deputy Director for Regulatory Operations, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–19251 Filed 9–7–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0607; Project 

Identifier MCAI–2020–01249–R; Amendment 

39–21666; AD 2021–16–04] 

RIN 2120–AA64 

Airworthiness Directives; Leonardo 

S.p.a. Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Leonardo S.p.a. Model AB412 and 

AB412 EP helicopters. This AD was 

prompted by a report of the failure of 

both inverters in-flight, leading to an 

autopilot disconnection. This AD 

requires a one-time inspection of the 

clearance between a certain protective 

grommet installed in the emergency bus 

interlock compartment and the cable 

assemblies passing through it, and 

depending on the finding, applicable 

corrective actions, as specified in a 

European Union Aviation Safety Agency 

(EASA) AD, which is incorporated by 

reference. The FAA is issuing this AD 

to address the unsafe condition on these 

products. 

DATES: This AD becomes effective 

September 23, 2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of September 23, 2021. 

The FAA must receive comments on 

this AD by October 25, 2021. 

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: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For EASA material incorporated by 

reference (IBR) in this AD, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 

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

internet www.easa.europa.eu. You may 

find this IBR material on the EASA 

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

You may view the EASA material 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 the EASA material at the 

FAA, call (817) 222–5110. The EASA 

material is also available at https://

www.regulations.gov by searching for 

and locating Docket FAA–2021–0607. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0607; 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 

AD, the EASA AD, any comments 

received, and other information. The 

street address for Docket Operations is 

listed above. 

FOR FURTHER INFORMATION CONTACT: 

Jacob Fitch, Aerospace Engineer, COS 

Program Management Section, 

Operational Safety Branch, Compliance 

& Airworthiness Division, FAA, 10101 

Hillwood Pkwy., Fort Worth, TX 76177; 

telephone (817) 222–4130; email 

jacob.fitch@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The EASA, which is the Technical 

Agent for the Member States of the 

European Union, has issued EASA AD 

2020–0192, dated September 4, 2020 

(EASA AD 2020–0192) (also referred to 

as the Mandatory Continuing 

Airworthiness Information, or the 

MCAI), to correct an unsafe condition 

for Leonardo S.p.a. (formerly 

AgustaWestland S.p.A., Agusta S.p.A., 

and Costruzioni Aeronautiche Giovanni 

Agusta) Model AB412 and AB412 EP 

helicopters, all serial numbers. 

This AD was prompted by a report of 

the failure of both inverters in-flight, 

leading to an autopilot disconnection. 

Subsequent inspection identified 


jbell on DSKJLSW7X2PROD with RULES