52856 Federal Register / Vol. 86, No. 182 / Thursday, September 23, 2021 / Proposed Rules 

identical design switch guard installed on the 

pilot collective stick, Model AS355NP 

helicopters are also affected. The FAA is 

issuing this AD to address mechanical 

deformation on the protective cover of the 

‘‘SHEAR’’ control pushbutton installed on 

the pilot collective stick. The unsafe 

condition, if not addressed, could result in 

unintended shearing of the hoist cable, 

possibly resulting in injury to hoisted 

person(s). 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Except as specified in paragraph (h) of this 

AD: Comply with all required actions and 

compliance times specified in, and in 

accordance with, European Union Aviation 

Safety Agency (EASA) AD 2021–0027R1, 

dated January 22, 2021 (EASA AD 2021– 

0027R1). 

(h) Exceptions to EASA AD 2021–0027R1 

(1) Where EASA AD 2021–0027R1 refers to 

its effective date, this AD requires using the 

effective date of this AD. 

(2) This AD does not require the 

‘‘Remarks’’ section of EASA AD 2021– 

0027R1. 

(i) Flight Condition Limitation 

As of the effective date of this AD: Do not 

perform external load operations until the 

modification required by Paragraph (1) of 

EASA AD 2021–0027R1 is complete. 

(j) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2021–0027R1 

specifies to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(k) 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 (l)(2) 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. 

(l) Related Information 

(1) For EASA AD 2021–0027R1, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; phone: +49 221 8999 000; 

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

www.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. 

This material may be found in the AD docket 

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

for and locating Docket No. FAA–2021–0796. 

(2) 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; phone: 

(202) 267–9167; email: hal.jensen@faa.gov. 

Issued on September 15, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–20407 Filed 9–22–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0797; Project 

Identifier MCAI–2021–00218–R] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Helicopters Deutschland GmbH 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Airbus Helicopters Deutschland 

GmbH Model EC135P1, EC135P2, 

EC135P2+, EC135P3, EC135T1, 

EC135T2, EC135T2+, and EC135T3 

helicopters. This proposed AD was 

prompted by reduced life limits being 

established for certain part-numbered 

tail rotor (TR) blades. This proposed AD 

would require determining the total 

hours time-in-service (TIS) of certain 

part-numbered TR blades, establishing a 

life limit for certain part-numbered TR 

blades, removing from service any TR 

blade that has reached or exceeded its 

life limit, creating a component history 

card, re-identifying certain partnumbered TR blades, and removing any 

TR blade from service before reaching 

its retirement life. This proposed AD 

would also prohibit installing certain 

TR blades on certain model helicopters. 

The FAA is proposing this AD to 

address the unsafe condition on these 

products. 

DATES: The FAA must receive comments 

on this proposed AD by November 8, 

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

Monday through Friday, except Federal 

holidays. 

For service information identified in 

this NPRM, contact Airbus Helicopters, 

2701 North 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. 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. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0797 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 

NPRM, the European Union Aviation 

Safety Agency (EASA) AD, any 

comments received, and other 

information. The street address for 

Docket Operations is listed above. 

FOR FURTHER INFORMATION CONTACT: 

Andrea Jimenez, Aerospace Engineer, 

COS Program Management Section, 

Operational Safety Branch, Compliance 

& Airworthiness Division, FAA, 1600 

Stewart Ave., Suite 410, Westbury, NY 

11590; telephone (516) 228–7330; email 

andrea.jimenez@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2021–0797; Project Identifier 

MCAI–2021–00218–R’’ at the beginning 

of your comments. The most helpful 

comments reference a specific portion of 

the proposal, explain the reason for any 

recommended change, and include 

supporting data. The FAA will consider 

all comments received by the closing 

date and may amend this proposal 

because of those comments. 


lotter on DSK11XQN23PROD with PROPOSALS1
Federal Register / Vol. 86, No. 182 / Thursday, September 23, 2021 / Proposed Rules 52857 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this NPRM. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 

comments as CBI. Please mark each 

page of your submission containing CBI 

as ‘‘PROPIN.’’ The FAA will treat such 

marked submissions as confidential 

under the FOIA, and they will not be 

placed in the public docket of this 

NPRM. Submissions containing CBI 

should be sent to Andrea Jimenez, 

Aerospace Engineer, COS Program 

Management Section, Operational 

Safety Branch, Compliance & 

Airworthiness Division, FAA, 1600 

Stewart Ave., Suite 410, Westbury, NY 

11590; telephone (516) 228–7330; email 

andrea.jimenez@faa.gov. Any 

commentary that the FAA receives 

which is not specifically designated as 

CBI will be placed in the public docket 

for this rulemaking. 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2021–0050, 

dated February 23, 2021 (EASA AD 

2021–0050), to correct an unsafe 

condition for Airbus Helicopters 

Deutschland GmbH (AHD), formerly 

Eurocopter Deutschland GmbH, 

Eurocopter Espan ̃ a S.A., Model EC135 

P1, EC135 P2, EC135 P2+, EC135 P3, 

EC135 T1, EC135 T2, EC135 T2+, EC135 

T3, EC635 P2+, EC635 P3, EC635 T1, 

EC635 T2+, and EC635 T3 helicopters, 

all variants, and all serial numbers. 

EASA advises that a reduced life limit 

has been established for certain partnumbered TR blades due to higher loads 

experienced in service. This condition, 

if not addressed, could result in fatigue 

and failure of a TR blade and loss of 

control of the helicopter. 

Accordingly, EASA AD 2021–0050 

requires determining the total hours TIS 

for certain part-numbered TR blades, 

recalculating the TIS for affected parts, 

and implementing a reduced life limit. 

EASA AD 2021–0050 also prohibits 

installing certain part-numbered TR 

blades and TR head assemblies and 

provides conditions for re-installation of 

certain TR blades. 

FAA’s Determination 

These helicopters have been approved 

by EASA and are approved for operation 

in the United States. Pursuant to the 

FAA’s bilateral agreement with the 

European Union, EASA has notified the 

FAA about the unsafe condition 

described in its AD. The FAA is 

proposing this AD after evaluating all 

known relevant information and 

determining that the unsafe condition 

described previously is likely to exist or 

develop on other helicopters of these 

same type designs. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed Airbus Helicopters 

Alert Service Bulletin ASB EC135H– 

04A–002 and Airbus Helicopters Alert 

Service Bulletin ASB EC135–04A–014, 

both Revision 1, and both dated 

December 21, 2020. This service 

information specifies procedures to 

determine the total hours TIS of certain 

TR blades and provides instructions to 

re-identify certain part-numbered TR 

blades. 

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. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require 

within 350 hours time-in-service (TIS), 

determining the total hours TIS of 

certain part-numbered TR blades and 

removing from service certain partnumbered TR blades that have 

accumulated or exceeded 6,800 total 

hours TIS. This proposed AD would 

also require for certain part-numbered 

TR blades with less than 6,800 total 

hours TIS, creating a component history 

card or equivalent record to establish a 

life limit of 6,800 total hours TIS, and 

removing these TR blades from service 

before accumulating 6,800 total hours 

TIS. This proposed AD would require 

for certain model helicopters reidentifying certain part-numbered TR 

blades with new part numbers and 

removing those newly re-identified TR 

blades from service before exceeding 

6,800 total hours TIS. 

This proposed AD would also require 

for certain model helicopters with 

certain part-numbered TR blades 

installed that have been previously 

installed on certain model helicopters 

determining the total hours TIS of the 

TR blade in accordance with a method 

approved by the FAA or EASA. Finally, 

for certain model helicopters this 

proposed AD would prohibit installing 

certain part-numbered TR blades and for 

certain model helicopters this proposed 

AD would prohibit installing certain 

part-numbered TR blades that have 

exceeded or accumulated 500 total 

hours TIS while previously installed on 

certain model helicopters. 

Differences Between This Proposed AD 

and EASA AD 2021–0050 

EASA AD 2021–0050 requires 

compliance using calendar time, 

whereas this proposed AD would 

require compliance using hours TIS 

instead. EASA AD 2021–0050 applies to 

Model EC635 P2+, EC635 P3, EC635 T1, 

EC635 T2+, and EC635 T3 helicopters, 

which are not certificated by the FAA 

and are not included on the U.S. type 

certificate data sheet, except where the 

U.S. type certificate data sheet explains 

that the model EC635 T2+ helicopter 

having serial number 0858 was 

converted from Model EC635 T2+ to 

Model EC135 T2+. This proposed AD, 

therefore, does not include Model 

EC635 P2+, EC635 P3, EC635 T1, EC635 

T2+, and EC635 T3 helicopters in the 

applicability. EASA AD 2021–0050 

specifies contacting Airbus Helicopters 

Deutschland GmbH to determine the 

total hours TIS accumulated by certain 

TR blades whereas this proposed AD 

would require determining the total 

hours TIS accumulated by the TR blade 

in accordance with a method approved 

by the FAA or EASA. EASA AD 2021– 

0050 prohibits installing certain partnumbered TR head assemblies as 

defined in its AD, whereas this AD 

would not contain this prohibition. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 341 

helicopters of U.S. Registry. Labor rates 

are estimated at $85 per work-hour. 

Based on these numbers, the FAA 

estimates the following costs to comply 

with this proposed AD. 

Determining the total hours TIS of 

each TR blade, updating the helicopter 

records and re-identifying each TR 

blade would take about 10 work-hours 

for each TR blade, for an estimated cost 

of $850 per TR blade. 

Replacing each TR blade would take 

about 10 work-hours and parts would 


lotter on DSK11XQN23PROD with PROPOSALS1
52858 Federal Register / Vol. 86, No. 182 / Thursday, September 23, 2021 / Proposed Rules 

cost about $4,400 for an estimated cost 

of $5,250 per TR blade replacement. 

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 

The FAA determined that this 

proposed AD would not have federalism 

implications under Executive Order 

13132. This proposed AD would 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, I certify 

this proposed regulation: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Would not affect intrastate 

aviation in Alaska, and 

(3) Would 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 Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 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: 

Airbus Helicopters Deutschland GmbH: 

Docket No. FAA–2021–0797; Project 

Identifier MCAI–2021–00218–R. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by November 8, 

2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus Helicopters 

Deutschland GmbH Model EC135P1, 

EC135P2, EC135P2+, EC135P3, EC135T1, 

EC135T2, EC135T2+, and EC135T3 

helicopters, certificated in any category, with 

tail rotor (TR) blade part number (P/N) 

L642A2002101, L642A2002103, 

L642A2002104, L642A2002111, or 

L642A2002112 installed. 

(d) Subject 

Joint Aircraft Service Component (JASC) 

Code: 6410, Tail rotor blades. 

(e) Unsafe Condition 

This AD was prompted by a notification of 

certain parts needing a reduced life limit 

when installed on certain model helicopters. 

The FAA is issuing this AD to prevent certain 

part-numbered TR blades from remaining in 

service beyond their fatigue life. The unsafe 

condition, if not addressed, could result in 

fatigue and failure of a TR blade and loss of 

helicopter control. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) For all model helicopters identified in 

paragraph (c) of this AD, within 350 hours 

time-in-service (TIS) after the effective date 

of this AD, determine the total hours TIS of 

each TR blade P/N L642A2002101 or P/N 

L642A2002111 in accordance with paragraph 

3.B.2 of the Accomplishment Instructions of 

Airbus Helicopters Alert Service Bulletin 

ASB EC135H–04A–002, Revision 1, dated 

December 21, 2020 (ASB EC135H–04A–002) 

or paragraph 3.B.2 (version A) or 3.B.4 

(version B) of the Accomplishment 

Instructions of Airbus Helicopters Alert 

Service Bulletin ASB EC135–04A–014, 

Revision 1, dated December 21, 2020 (ASB 

EC135–04A–014) as applicable to your model 

helicopter. Remove from service any TR 

blade that has accumulated or exceeded 

6,800 total hours TIS. For each TR blade that 

has accumulated less than 6,800 total hours 

TIS do the following: 

(i) Create a component history card or 

equivalent record to establish a life limit of 

6,800 total hours TIS. 

(ii) Re-identify each TR blade P/N 

L642A2002101 as P/N L642A2002104 and reidentify each T/R blade P/N L642A2002111 

as P/N L642A2002112 by following 

paragraph 3.B.5 of the Accomplishment 

Instructions of ASB EC135H–04A–002, or 

paragraph 3.B.7 of the Accomplishment 

Instructions of ASB EC135–04A–014 as 

applicable to your model helicopter. 

(iii) Thereafter, remove from service any 

TR blade P/N L642A2002104 or P/N 

L642A2002112 before it accumulates 6,800 

total hours TIS. 

(2) For Model EC135P1, EC135P2, 

EC135P2+, EC135T1, EC135T2, and 

EC135T2+ helicopters with TR blade P/N 

L642A2002103 that has previously been 

installed on Model EC135P3 or EC135T3 

helicopters, within 350 hours TIS after the 

effective date of this AD, determine the total 

hours TIS of the TR blade in accordance with 

a method approved by the Manager, General 

Aviation and Rotorcraft Section, 

International Validation Branch, FAA; or 

European Union Aviation Safety Agency 

(EASA); or Airbus Helicopters’ EASA Design 

Organization Approval (DOA). If approved by 

the DOA, the approval must include the 

DOA-authorized signature. 

(3) For Model EC135P3 and EC135T3 

helicopters within 350 hours TIS after the 

effective date of this AD, remove from service 

any TR blade P/N L642A2002103 before 

exceeding 6,800 total hours TIS. 

(4) For Model EC135P3 and EC135T3 

helicopters, as of the effective date of this 

AD, do not install any TR blade P/N 

L642A2002101, P/N L642A2002103, or P/N 

L642A2002111 on any helicopter. 

(5) For Model EC135P1, EC135P2, 

EC135P2+, EC135T1, EC135T2, EC135T2+, 

and EC635T2+ helicopters, as of the effective 

date of this AD, do not install any TR blade 

P/N L642A2002101 or L642A2002111 that 

has accumulated or exceeded 500 total hours 

TIS while installed on a Model EC135P3 or 

EC135T3 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 Andrea Jimenez, Aerospace Engineer, 

COS Program Management Section, 

Operational Safety Branch, Compliance & 

Airworthiness Division, FAA, 1600 Stewart 

Ave., Suite 410, Westbury, NY 11590; 

telephone (516) 228–7330; email 

andrea.jimenez@faa.gov. 

(2) For service information identified in 

this AD, contact Airbus Helicopters, 2701 


lotter on DSK11XQN23PROD with PROPOSALS1
Federal Register / Vol. 86, No. 182 / Thursday, September 23, 2021 / Proposed Rules 52859 

North 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. You may view this 

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. 

(3) The subject of this AD is addressed in 

EASA AD 2021–0050, dated February 23, 

2021. You may view the EASA AD on the 

internet at https://www.regulations.gov in 

Docket No. FAA–2021–0797. 

Issued on September 15, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–20409 Filed 9–22–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0829; Project 

Identifier MCAI–2021–00189–R] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede Airworthiness Directive (AD) 

2021–04–21, which applies to certain 

Airbus Helicopters Model EC120B 

helicopters. AD 2021–04–21 requires an 

inspection of the attachment bolts of the 

main rotor (MR) hub scissors assembly 

for discrepancies and repair if 

necessary; part marking of the 

attachment bolts of the MR hub scissors 

assembly; and repetitive inspections of 

the part marking of the attachment bolts, 

and repair if necessary. Since the FAA 

issued AD 2021–04–21, the FAA has 

determined that additional part marking 

of the washer, scissor branch, and mast 

ring of the corresponding nut side, and 

repetitive inspections of the additional 

part markings are necessary. This 

proposed AD would continue to require 

the actions in AD 2021–04–21; and also 

would require part marking of the 

washer, scissor branch, and mast ring of 

the corresponding nut side, and 

repetitive inspections of the additional 

part markings and repair if necessary; as 

specified in a European Union Aviation 

Safety Agency (EASA) AD, which is 

proposed for incorporation by reference 

(IBR). The FAA is proposing this AD to 

address the unsafe condition on these 

products. 

DATES: The FAA must receive comments 

on this proposed AD by November 8, 

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 material that is proposed for IBR 

in this AD, contact the EASA, KonradAdenauer-Ufer 3, 50668 Cologne, 

Germany; phone: +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 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– 

0829. 

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– 

0829; 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 NPRM, any 

comments received, and other 

information. The street address for 

Docket Operations is listed above. 

Comments will be available in the AD 

docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: Hal 

Jensen, Aerospace Engineer, Operational 

Safety Branch, Compliance & 

Airworthiness Division, FAA, 950 

L’Enfant Plaza N SW, Washington, DC 

20024; phone: (202) 267–9167; email: 

hal.jensen@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2021–0829; Project Identifier 

MCAI–2021–00189–R’’ at the beginning 

of your comments. The most helpful 

comments reference a specific portion of 

the proposal, explain the reason for any 

recommended change, and include 

supporting data. The FAA will consider 

all comments received by the closing 

date and may amend this proposal 

because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this proposal. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 

comments as CBI. Please mark each 

page of your submission containing CBI 

as ‘‘PROPIN.’’ The FAA will treat such 

marked submissions as confidential 

under the FOIA, and they will not be 

placed in the public docket of this 

NPRM. Submissions containing CBI 

should be sent to Hal Jensen, Aerospace 

Engineer, Operational Safety Branch, 

Compliance & Airworthiness Division, 

FAA, 950 L’Enfant Plaza N SW, 

Washington, DC 20024; phone: (202) 

267–9167; email: hal.jensen@faa.gov. 

Any commentary that the FAA receives 

that is not specifically designated as CBI 

will be placed in the public docket for 

this rulemaking. 

Background 

The FAA issued AD 2021–04–21, 

Amendment 39–21443 (86 FR 17278, 

April 2, 2021) (AD 2021–04–21), which 

applies to certain Airbus Helicopters 

Model EC120B helicopters. AD 2021– 

04–21 requires an inspection of the 

attachment bolts of the MR hub scissors 


lotter on DSK11XQN23PROD with PROPOSALS1