13234 Federal Register / Vol. 86, No. 43 / Monday, March 8, 2021 / Proposed Rules 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by: 

■ a. Removing Airworthiness Directive 

(AD) 2015–25–04, Amendment 39– 

18342 (80 FR 76381, December 9, 2015); 

and 

■ b. Adding the following new AD: 

Leonardo S.p.a (Type Certificate Previously 

Held by Agusta S.p.A.): Docket No. 

FAA–2021–0127; Project Identifier 

MCAI–2020–00829–R. 

(a) Applicability 

This airworthiness directive (AD) applies 

to Leonardo S.p.a. (Type Certificate 

previously held by Agusta S.p.A.) Model 

A109A and A109A II helicopters, certificated 

in any category, with a slider assembly pitch 

control (slider) part number (P/N) 109–0130– 

11–7 installed, except those sliders marked 

with an ‘‘R’’ after the serial number. 

(b) Unsafe Condition 

This AD defines the unsafe condition as 

play on a slider. This condition could result 

in loss of tail rotor pitch control and 

consequently loss of helicopter control. 

(c) Affected ADs 

This AD replaces AD 2015–25–04, 

Amendment 39–18342 (80 FR 76381, 

December 9, 2015). 

(d) Comments Due Date 

The FAA must receive comments by April 

22, 2021. 

(e) Compliance 

You are responsible for performing each 

action required by this AD within the 

specified compliance time unless it has 

already been accomplished prior to that time. 

(f) Required Actions 

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

after the effective date of this AD, and 

thereafter at intervals not to exceed 25 hours 

TIS, inspect the slider for play. If there is 

play greater than 2.3 millimeters (0.09 inch), 

before further flight, replace the slider with 

a slider P/N 109–0130–11–7 with suffix ‘‘R’’ 

marked after the serial number. 

(2) Within 800 hours TIS after the effective 

date of this AD, if not previously required per 

paragraph (f)(1) of this AD, replace slider P/ 

N 109–0130–11–7 with slider P/N 109–0130– 

11–7 with suffix ‘‘R’’ marked after the serial 

number. 

(3) Installing slider P/N 109–0130–11–7 

with suffix ‘‘R’’ marked after the serial 

number is a terminating action for the 

repetitive inspections required by paragraph 

(f)(1) of this AD. 

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

not install slider P/N 109–0130–11–7 on any 

helicopter unless the slider is marked with 

suffix ‘‘R’’ after the serial number. 

(g) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Strategic Policy 

Rotorcraft Section, FAA, may approve 

AMOCs for this AD. Send your proposal to: 

Matthew Fuller, AD Program Manager, 

Operational Safety Branch, Airworthiness 

Products Section, General Aviation & 

Rotorcraft Unit, telephone 817–222–5110; 

email 9-ASW-FTW-AMOC-Requests@faa.gov. 

(2) For operations conducted under a 14 

CFR part 119 operating certificate or under 

14 CFR part 91, subpart K, the FAA suggests 

that you notify your principal inspector, or 

lacking a principal inspector, the manager of 

the local flight standards district office or 

certificate holding district office before 

operating any aircraft complying with this 

AD through an AMOC. 

(h) Additional Information 

(1) Leonardo Helicopters Alert Service 

Bulletin No. 109–149, Revision A, dated May 

18, 2020 which is not incorporated by 

reference, contains additional information 

about the subject of this AD. For service 

information identified in this AD, contact 

Leonardo S.p.a. Helicopters, Emanuele 

Bufano, Head of Airworthiness, Viale 

G.Agusta 520, 21017 C.Costa di Samarate 

(Va) Italy; telephone +39–0331–225074; fax 

+39–0331–229046; or at https://

www.leonardocompany.com/en/home. 

(2) The subject of this AD is addressed in 

European Union Aviation Safety Agency 

(EASA) AD No. 2020–0142, dated June 25, 

2020. You may view the EASA AD on the 

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

AD Docket. 

(i) Subject 

Joint Aircraft Service Component (JASC) 

Code: 6720, Tail Rotor Control System. 

Issued on February 24, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–04232 Filed 3–5–21; 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] 

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 MBB–BK117 D–2 

helicopters. This proposed 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 proposed AD would require 

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 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 April 22, 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; 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 

and locating Docket No. FAA–2021– 

0104; 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, FAA, 470 L’Enfant Plaza 

SW, Washington, DC 20024; telephone 


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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–2021–0104; Project Identifier 

MCAI–2020–00477–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, 

FAA, 470 L’Enfant Plaza SW, 

Washington, DC 20024; telephone 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. 

Discussion 

The EASA, which is the Technical 

Agent for the Member States of the 

European Union, has issued EASA AD 

2020–0084, dated April 3, 2020 (EASA 

AD 2020–0084) (also referred to as the 

Mandatory Continuing Airworthiness 

Information, or the MCAI), to correct an 

unsafe condition for all Airbus 

Helicopters Deutschland GmbH Model 

MBB–BK117 D–2 helicopters. Although 

EASA AD 2020–0084 applies to all 

Model MBB–BK117 D–2 helicopters, 

this proposed AD would apply to 

helicopters with an affected part 

installed instead. 

This proposed 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. The cable cut 

switch guard has an axis that holds, and 

allows the guard to turn over, the cable 

cut switch. This axis is secured with 

two retaining rings and if both retaining 

rings are missing, the axis can move out. 

The FAA is proposing this AD to 

address this condition, which could 

cause inadvertent activation of the 

rescue hoist cable cut function, resulting 

in personal injury. See the MCAI for 

additional background information. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2020–0084 describes 

procedures for inspecting collective 

lever switch units having certain part 

numbers for discrepancies, applicable 

corrective actions, and marking affected 

parts. Discrepancies include missing 

retaining rings, incorrectly installed 

retaining rings, and a missing axis in the 

cable cut switch guard. Corrective 

actions include installing missing 

retaining rings, adjusting retaining rings 

that are installed incorrectly, and 

installing an axis in the cable cut switch 

guard. EASA AD 2020–0084 also 

specifies that an affected part can be 

installed on any helicopter, provided it 

has been marked. This material 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. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to the 

bilateral agreement with the State of 

Design Authority, the FAA has been 

notified of the unsafe condition 

described in the MCAI referenced 

above. The FAA is proposing this AD 

after evaluating all the relevant 

information and determining the unsafe 

condition described previously is likely 

to exist or develop in other products of 

the same type design. 

Proposed AD Requirements 

This proposed AD would require 

accomplishing the actions specified in 

EASA AD 2020–0084, described 

previously, as incorporated by 

reference, except for any differences 

identified as exceptions in the 

regulatory text of this proposed AD. 

Explanation of Required Compliance 

Information 

In the FAA’s ongoing efforts to 

improve the efficiency of the AD 

process, the FAA initially worked with 

Airbus and EASA to develop a process 

to use certain EASA ADs as the primary 

source of information for compliance 

with requirements for corresponding 

FAA ADs. The FAA has since 

coordinated with other manufacturers 

and civil aviation authorities (CAAs) to 

use this process. As a result, EASA AD 

2020–0084 will be incorporated by 

reference in the FAA final rule. This 

proposed AD would, therefore, require 

compliance with EASA AD 2020–0084 

in its entirety, through that 

incorporation, except for any differences 

identified as exceptions in the 

regulatory text of this proposed AD. 

Using common terms that are the same 

as the heading of a particular section in 

the EASA AD does not mean that 

operators need comply only with that 

section. For example, where the AD 

requirement refers to ‘‘all required 

actions and compliance times,’’ 

compliance with this AD requirement is 

not limited to the section titled 

‘‘Required Action(s) and Compliance 

Time(s)’’ in the EASA AD. Service 

information specified in EASA AD 

2020–0084 that is required for 

compliance with EASA AD 2020–0084 

will be available on the internet at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0104 after the FAA final 

rule is published. 

Costs of Compliance 

The FAA estimates that this proposed 

AD affects 30 helicopters of U.S. 

registry. The FAA estimates the 

following costs to comply with this 

proposed AD: 


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13236 Federal Register / Vol. 86, No. 43 / Monday, March 8, 2021 / Proposed Rules 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

0.50 work-hour × $85 per hour = $42.50 .................................................................................... $0 $42.50 $1,275 

The FAA estimates the following 

costs to do any necessary on-condition 

actions that would be required based on 

the results of any required actions. The 

FAA has no way of determining the 

number of helicopters that might need 

these on-condition actions: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Labor cost Parts cost Cost per 

product 

2 work-hours × $85 per hour = $170 ...................................................................................................................... $56 $226 

According to the manufacturer, some 

or all of the costs of this proposed AD 

may be covered under warranty, thereby 

reducing the cost impact on affected 

operators. The FAA does not control 

warranty coverage for affected operators. 

As a result, the FAA has included all 

known costs in the cost estimate. 

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 above, I 

certify this proposed regulation: 

(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 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–2021–0104; Project 

Identifier MCAI–2020–00477–R. 

(a) Comments Due Date 

The FAA must receive comments by April 

22, 2021. 

(b) Affected Airworthiness Directives (ADs) 

None. 

(c) Applicability 

This AD applies to Airbus Helicopters 

Deutschland GmbH Model MBB–BK117 D–2 

helicopters, certificated in any category, all 

serial numbers, having an affected part 

defined in European Union Aviation Safety 

Agency (EASA) AD 2020–0084, dated April 

3, 2020 (EASA AD 2020–0084). 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 2700, Flight Control System. 

(e) Reason 

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. The 

cable cut switch guard has an axis that holds, 

and allows the guard to turn over, the cable 

cut switch. This axis is secured with two 

retaining rings and if both retaining rings are 

missing, the axis can move out. The FAA is 

issuing this AD to address this condition, 

which could cause inadvertent activation of 

the rescue hoist cable cut function, resulting 

in personal injury. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Comply with all required actions and 

compliance times specified in, and in 

accordance with, EASA AD 2020–0084. 

(h) Exceptions to EASA AD 2020–0084 

(1) Where EASA AD 2020–0084 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) The ‘‘Remarks’’ section of EASA AD 

2020–0084 does not apply to this AD. 

(i) Special Flight Permit 

Special flight permits may be issued in 

accordance with 14 CFR 21.197 and 21.199 

to operate the helicopter to a location where 

the helicopter can be modified (if the 

operator elects to do so), provided the 

helicopter is not used for hoist operations. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Strategic Policy 

Rotorcraft Section, 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 Strategic Policy 


jbell on DSKJLSW7X2PROD with PROPOSALS
Federal Register / Vol. 86, No. 43 / Monday, March 8, 2021 / Proposed Rules 13237 

Rotorcraft Section, send it to: Manager, 

Strategic Policy Rotorcraft Section, FAA, 

10101 Hillwood Pkwy., Fort Worth, TX 

76177; telephone 817–222–5110. Information 

may be emailed to: 9-ASW-FTW-AMOCRequests@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 

(1) For EASA AD 2020–0084, 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. 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 on 

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

by searching for and locating Docket No. 

FAA–2021–0104. 

(2) For more information about this AD, 

contact Hal Jensen, Aerospace Engineer, 

Operational Safety Branch, FAA, 470 

L’Enfant Plaza SW, Washington, DC 20024; 

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

faa.gov. 

Issued on February 19, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–04185 Filed 3–5–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2019–0113; Product 

Identifier 2017–SW–140–AD] 

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 

supersede Airworthiness Directive (AD) 

2016–11–21 for Airbus Helicopters 

Deutschland GmbH (Airbus Helicopters) 

Model EC135P1, EC135P2, EC135P2+, 

EC135T1, EC135T2, and EC135T2+ 

helicopters. AD 2016–11–21 requires 

revising the life limit of certain parts 

and removing each part that has reached 

its life limit. Since the FAA issued AD 

2016–11–21, new models were certified. 

This proposed AD would expand the 

applicability to include Model EC135P3 

and EC135T3 helicopters. This 

proposed AD would also revise the life 

limits for certain parts and propose to 

remove each part that has reached or 

exceeded its life limit. The actions of 

this proposed AD are intended to 

address an unsafe condition on these 

products. 

DATES: The FAA must receive comments 

on this proposed AD by April 22, 2021. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Docket: Go to 

https://www.regulations.gov. Follow the 

online instructions for sending your 

comments electronically. 

• Fax: 202–493–2251. 

• Mail: Send comments to the U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE, Washington, DC 

20590–0001. 

• Hand Delivery: Deliver to the 

‘‘Mail’’ address between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

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–2019– 

0113; 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 proposed 

AD, the European Aviation Safety 

Agency (now European Union Aviation 

Safety Agency) (EASA) AD, 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 service information identified in 

this proposed rule, 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. 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 FURTHER INFORMATION CONTACT: Matt 

Fuller, AD Program Manager, 

Operational Safety Branch, 

Airworthiness Products Section, 

General Aviation & Rotorcraft Unit, 

FAA, 10101 Hillwood Pkwy., Fort 

Worth, TX 76177; telephone 817–222– 

5110; email matthew.fuller@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–2019–0113; Product Identifier 

2017–SW–140–AD’’ 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.regualtions.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 Matt Fuller, AD 

Program Manager, Operational Safety 

Branch, Airworthiness Products 

Section, General Aviation & Rotorcraft 

Unit, 10101 Hillwood Pkwy., Fort 

Worth, TX 76177; telephone 817–222– 

5110; email Matthew.Fuller@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. 

Discussion 

The FAA issued AD 2016–11–21, 

Amendment 39–18548 (81 FR 36137, 

June 6, 2016) (AD 2016–11–21) for 

Airbus Helicopters Model EC135P1, 

EC135P2, EC135P2+, EC135T1, 


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