Federal Register / Vol. 86, No. 103 / Tuesday, June 1, 2021 / Rules and Regulations 29185 

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: 

2021–10–23 Airbus Helicopters 

Deutschland GmbH (AHD): Amendment 

39–21556; Docket No. FAA–2021–0126; 

Project Identifier MCAI–2020–00266–R. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective July 6, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus Helicopters 

Deutschland GmbH (AHD) Model MBB–BK 

117 D–2 helicopters, certificated in any 

category, with a Titanium (Ti) bolt part 

number EN3740–060022F marked with 

manufacturer monogram ‘‘D’’ or with an 

illegible manufacturer monogram, installed 

on the aft connection of the tail rotor ball 

bearing control. 

(d) Subject 

Joint Aircraft Service Component (JASC) 

Codes: 1430, Fasteners; and 6720, Tail Rotor 

Control System. 

(e) Unsafe Condition 

This AD was prompted by a Ti-bolt with 

hydrogen embrittlement. This condition 

could result in failure of the tail rotor ball 

bearing control Ti-bolt and subsequent loss of 

tail rotor control. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) Within 50 hours time-in-service or 3 

months, whichever occurs first, remove any 

Ti-bolt identified in paragraph (c) of this AD, 

located on the aft connection of the tail rotor 

ball bearing rod end (item 5) and at the input 

lever (item 2) as shown in Figure 1 to Airbus 

Helicopters Alert Service Bulletin No. ASB 

MBB–BK117 D–2–00A–001, Revision 1, 

dated October 16, 2019, from service. 

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

not install a Ti-bolt identified in paragraph 

(c) of this AD on the aft connection of the tail 

rotor ball bearing control of 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 Matt Fuller, AD Program Manager, 

General Aviation & Rotorcraft Unit, 

Airworthiness Products Section, Operational 

Safety Branch, FAA, 10101 Hillwood Pkwy., 

Fort Worth, TX 76177; telephone (817) 222– 

5110; email matthew.fuller@faa.gov. 

(2) The subject of this AD is addressed in 

European Union Aviation Safety Agency 

(EASA) AD 2019–0258, dated October 18, 

2019. You may view the EASA AD at https:// 

www.regulations.gov in Docket No. FAA– 

2021–0126. 

(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) Airbus Helicopters Alert Service 

Bulletin No. ASB MBB–BK117 D–2–00A– 

001, Revision 1, dated October 16, 2019. 

(ii) [Reserved] 

(3) For service information identified in 

this AD, contact Airbus Helicopters, 2701 N 

Forum Drive, Grand Prairie, TX 75052; 

telephone (972) 641–0000 or (800) 232–0323; 

fax (972) 641–3775; or at https://

www.airbus.com/helicopters/services/ 

technical-support.html. 

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

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

ibr-locations.html. 

Issued on May 7, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–11392 Filed 5–28–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0097; Project 

Identifier MCAI–2020–01334–T; Amendment 

39–21559; AD 2021–10–26] 

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–100–1A10 

airplanes. This AD was prompted by 

reports of DC motor pump (DCMP) 

failures during production flight tests. 

This AD requires installing a redesigned 

DCMP electric motor assembly. The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective July 6, 2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of July 6, 2021. 

ADDRESSES: For service information 

identified in this final rule, contact 

Bombardier, Inc., 200 Coˆte-Vertu Road 

West, Dorval, Que ́bec H4S 2A3, Canada; 

North America toll-free telephone 

1–866–538–1247 or direct-dial 

telephone 1–514–855–2999; 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–2021–0097. 

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–2021– 

0097; or in person at Docket Operations 


jbell on DSKJLSW7X2PROD with RULES
29186 Federal Register / Vol. 86, No. 103 / Tuesday, June 1, 2021 / Rules and Regulations 

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: 

Steven Dzierzynski, Aerospace 

Engineer, Avionics and Electrical 

Systems Services Section, FAA, New 

York ACO Branch, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 

11590; phone: 516–228–7367; fax: 516– 

794–5531; email: 9-avs-nyaco-cos@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued TCCA AD CF– 

2020–31, dated September 23, 2020 

(TCCA AD CF–2020–31) (also referred 

to as the Mandatory Continuing 

Airworthiness Information, or the 

MCAI), to correct an unsafe condition 

for certain Bombardier, Inc., Model BD– 

100–1A10 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–2021–0097. 

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–100–1A10 airplanes. The NPRM 

published in the Federal Register on 

February 24, 2021 (86 FR 11163). The 

NPRM was prompted by reports of 

DCMP failures during production flight 

tests. The NPRM proposed to require 

installing a redesigned DCMP electric 

motor assembly. The FAA is issuing this 

AD to address failures of the DCMP and 

electrical system generators, which 

could lead to the loss of normal 

electrical power on 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 FAA received no 

comments on the NPRM or on the 

determination of the cost to the public. 

Conclusion 

The FAA reviewed the relevant data 

and determined that air safety and the 

public interest require adopting this 

final rule as proposed, except for 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. 

Related Service Information Under 1 

CFR Part 51 

Bombardier has issued Service 

Bulletin 100–29–18, Revision 03, dated 

December 18, 2014. This service 

information describes procedures for 

installing the redesigned DCMP electric 

motor assembly, having part number (P/ 

N) 945202–3 (including a wiring 

modification and a structural 

modification). 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 239 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 

68 work-hours × $85 per hour = $5,780 ..................................................................................... $18,964 $24,744 $5,913,816 

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: 

2021–10–26 Bombardier, Inc.: Amendment 

39–21559; Docket No. FAA–2021–0097; 

Project Identifier MCAI–2020–01334–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective July 6, 2021. 

(b) Affected ADs 

None. 


jbell on DSKJLSW7X2PROD with RULES
Federal Register / Vol. 86, No. 103 / Tuesday, June 1, 2021 / Rules and Regulations 29187 

(c) Applicability 

This AD applies to Bombardier, Inc., 

Model BD–100–1A10 airplanes, certificated 

in any category, serial numbers 20003 

through 20406 inclusive. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 29, Hydraulic power. 

(e) Reason 

This AD was prompted by reports of DC 

motor pump (DCMP) failures during 

production flight tests. These failures caused 

the electrical system generators to disconnect 

due to excessive induced voltage in the bus, 

caused by the DCMP overheating at high 

altitudes. The FAA is issuing this AD to 

address failures of the DCMP and electrical 

system generators, which could lead to the 

loss of normal electrical power on the 

airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

Within 6 months after the effective date of 

this AD: Install the redesigned DCMP electric 

motor assembly, having part number (P/N) 

945202–3, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 100–29–18, Revision 03, 

dated December 18, 2014. 

(h) Parts Installation Prohibition 

After accomplishing the installation 

required by paragraph (g) of this AD, no 

person may install a DCMP having P/N 

MB74F–9/–7 on any airplane. 

(i) Credit for Previous Actions 

This paragraph provides credit for actions 

required by paragraph (g) of this AD, if those 

actions were performed before the effective 

date of this AD using Bombardier Service 

Bulletin 100–29–18, dated July 2, 2013; 

Bombardier Service Bulletin 100–29–18, 

Revision 01, dated January 21, 2014; or 

Bombardier Service Bulletin 100–29–18, 

Revision 02, dated July 18, 2014. 

(j) 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 

responsible Flight Standards 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 

responsible Flight Standards 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, Inc.’s TCCA Design 

Approval Organization (DAO). If approved by 

the DAO, the approval must include the 

DAO-authorized signature. 

(k) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) TCCA AD 

CF–2020–31, dated September 23, 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–2021–0097. 

(2) For more information about this AD, 

contact Steven Dzierzynski, Aerospace 

Engineer, Avionics and Electrical Systems 

Services Section, FAA, New York ACO 

Branch, 1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; phone: 516–228–7367; 

fax: 516–794–5531; email: 9-avs-nyaco-cos@

faa.gov. 

(3) Service information identified in this 

AD that is not incorporated by reference is 

available at the addresses specified in 

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

(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) Bombardier Service Bulletin 100–29–18, 

Revision 03, dated December 18, 2014. 

(ii) [Reserved] 

(3) For service information identified in 

this AD, contact Bombardier, Inc., 200 CoˆteVertu Road West, Dorval, Que ́bec H4S 2A3, 

Canada; North America toll-free telephone 

1–866–538–1247 or direct-dial telephone 

1–514–855–2999; 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 May 7, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–11426 Filed 5–28–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0104; Project 

Identifier MCAI–2020–00477–R; Amendment 

39–21551; AD 2021–10–18] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Helicopters Deutschland GmbH 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Airbus Helicopters Deutschland GmbH 

Model MBB–BK117 D–2 helicopters. 

This AD was prompted by reports that 

collective lever switch units having 

certain part numbers did not have 

retaining rings installed in the cable cut 

switch guard. This AD requires 

inspecting certain collective lever 

switch units for discrepancies (missing 

retaining rings, incorrectly installed 

retaining rings, and a missing axis in the 

cable cut switch guard), doing all 

applicable corrective actions, and 

marking affected parts, 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 is effective July 6, 2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of July 6, 2021. 

ADDRESSES: For material incorporated 

by reference (IBR) in this AD, 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 

material on the EASA website at https:// 

ad.easa.europa.eu. You may view this 

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 this material at the 

FAA, call 817–222–5110. It is also 

available in the AD docket on the 

internet at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–0104. 

Examining the AD Docket 

You may examine the AD docket on 

the internet at https://

www.regulations.gov by searching for 


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