69102 Federal Register / Vol. 88, No. 192 / Thursday, October 5, 2023 / Proposed Rules 

(i) Pratt & Whitney Service Bulletin

PW1000G–C–72–00–0208–00A–930A–D, 

Issue 001, dated September 13, 2022. 

(ii) [Reserved]

(3) For Pratt & Whitney service information

identified in this AD, contact International 

Aero Engines, LLC, 400 Main Street, East 

Hartford, CT 06118; phone: (860) 565–0140; 

email: help24@pw.utc.com; website: 

connect.prattwhitney.com. 

(4) You may view this service information

at FAA, Airworthiness Products Section, 

Operational Safety Branch, 1200 District 

Avenue, Burlington, MA 01803. 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: 

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued on September 29, 2023. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2023–22174 Filed 10–4–23; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1987; Project 

Identifier MCAI–2023–00807–T] 

RIN 2120–AA64 

Airworthiness Directives; ATR—GIE 

Avions de Transport Re ́gional 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede Airworthiness Directive (AD) 

2021–17–02, which applies to all ATR— 

GIE Avions de Transport Re ́gional 

Model ATR42–200, –300, and –320 

airplanes. AD 2021–17–02 requires a 

one-time inspection for discrepancies of 

the wire bundles between the left- and 

right-hand angle of attack (AOA) probes 

and the crew alerting computer, and, 

depending on findings, applicable 

corrective actions. AD 2021–17–02 also 

required for certain airplanes, modifying 

the captain stick shaker wiring, and for 

all airplanes, revising the existing 

aircraft flight manual (AFM) and 

applicable corresponding operational 

procedures to incorporate procedures 

for the stick pusher/shaker. Since the 

FAA issued AD 2021–17–02, a 

modification was developed to the 

affected wiring. This proposed AD 

would require installing a new AOA 

power supply unit and revising the 

existing AFM, 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 20, 

2023. 

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

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.

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1987; 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 mandatory 

continuing airworthiness information 

(MCAI), any comments received, and 

other information. The street address for 

Docket Operations is listed above. 

Material Incorporated by Reference: 

• For the EASA ADs identified in this

NPRM, contact EASA, KonradAdenauer-Ufer 3, 50668 Cologne, 

Germany; telephone +49 221 8999 000; 

email ADs@easa.europa.eu; website 

easa.europa.eu. You may find this 

material on the EASA website 

ad.easa.europa.eu. It is also available at 

regulations.gov under Docket No. FAA– 

2023–1987. 

• You may view this material at the

FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th Street, Des Moines, WA. For 

information on the availability of this 

material at the FAA, call 206–231–3195. 

FOR FURTHER INFORMATION CONTACT: 

Shahram Daneshmandi, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 

telephone: 206–231–3220; email: 

shahram.daneshmandi@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–2023–1987; Project Identifier 

MCAI–2023–00807–T’’ 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 

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 Shahram 

Daneshmandi, Aviation Safety Engineer, 

FAA, 1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; telephone: 206– 

231–3220; email: 

shahram.daneshmandi@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 

The FAA issued AD 2021–17–02, 

Amendment 39–21685 (86 FR 48490, 

August 31, 2021) (AD 2021–17–02), for 

all ATR—GIE Avions de Transport 

Re ́gional Model ATR42–200, –300, and 

–320 airplanes. AD 2021–17–02 was

prompted by an MCAI originated by

EASA, which is the Technical Agent for

the Member States of the European

Union. EASA issued AD 2021–0024,

dated January 19, 2021, to correct false


ddrumheller on DSK120RN23PROD with PROPOSALS1
Federal Register / Vol. 88, No. 192 / Thursday, October 5, 2023 / Proposed Rules 69103 

activation of the stall warning system 

due to wiring damage on the wire 

bundle between an AOA probe and the 

crew alerting computer. 

AD 2021–17–02 requires a one-time 

inspection for discrepancies of the wire 

bundles between the left- and righthand AOA probes and the crew alerting 

computer, and, depending on findings, 

applicable corrective actions. AD 2021– 

17–02 also required for certain 

airplanes, modifying the captain stick 

shaker wiring, and for all airplanes, 

revising the existing AFM and 

applicable corresponding operational 

procedures to incorporate procedures 

for the stick pusher/shaker. 

Actions Since AD 2021–17–02 Was 

Issued 

The preamble to AD 2021–17–02 

explained that the FAA considered the 

requirements ‘‘interim action’’ and was 

considering further rulemaking. The 

FAA has now determined that further 

rulemaking is indeed necessary, and 

this proposed AD follows from that 

determination. 

Since the FAA issued AD 2021–17– 

02, EASA superseded AD 2021–0024, 

dated January 19, 2021, and issued 

EASA AD 2023–0134, dated July 5, 2023 

(EASA AD 2023–0134) (also referred to 

as the MCAI), to correct an unsafe 

condition for all ATR—GIE Avions de 

Transport Re ́gional Model ATR42–200, 

–300, and –320 airplanes. The MCAI 

states final modification instructions of 

the affected wiring were developed. 

This proposed AD requires installing a 

new AOA power supply unit, and 

removes the AFM amendment. 

The FAA is proposing this AD to 

address false activation of the stall 

warning system, which could result in 

loss of control of the airplane during 

take-off and landing phases. You may 

examine the MCAI in the AD docket at 

regulations.gov under Docket No. FAA– 

2023–1987. 

Explanation of Retained Requirements 

Although this proposed AD does not 

explicitly restate the requirements of AD 

2021–17–02, this proposed AD would 

retain all of the requirements of AD 

2021–17–02. Those requirements are 

referenced in EASA AD 2023–0134, 

which, in turn, is referenced in 

paragraph (g) of this proposed AD. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2023–0134 specifies 

procedures for installing the AOA 

power supply unit and removing the 

AFM amendment. 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 

This product has been approved by 

the aviation authority of another 

country and is approved for operation in 

the United States. Pursuant to the FAA’s 

bilateral agreement with this State of 

Design Authority, it has notified the 

FAA of the unsafe condition described 

in the MCAI referenced above. The FAA 

is issuing this NPRM after determining 

that the unsafe condition described 

previously is likely to exist or develop 

in other products of the same type 

design. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would retain all of 

the requirements of AD 2021–17–02. 

This proposed AD would require 

accomplishing the actions specified in 

EASA AD 2023–0134 described 

previously. 

EASA AD 2023–0134 requires 

operators to amend the AFM to ‘‘inform 

all flight crews’’ of revisions to the 

AFM; and thereafter to ‘‘operate the 

aeroplane accordingly.’’ However, this 

AD would not specifically require those 

actions as those actions are already 

required by FAA regulations. FAA 

regulations require operators furnish to 

pilots any changes to the AFM (for 

example, 14 CFR 121.137), and to 

ensure the pilots are familiar with the 

AFM (for example, 14 CFR 91.505). As 

with any other flightcrew training 

requirement, training on the updated 

AFM content is tracked by the operators 

and recorded in each pilot’s training 

record, which is available for the FAA 

to review. FAA regulations also require 

pilots to follow the procedures in the 

existing AFM including all updates. 14 

CFR 91.9 requires that any person 

operating a civil aircraft must comply 

with the operating limitations specified 

in the AFM. Therefore, including a 

requirement in this AD to operate the 

airplane according to the revised AFM 

would be redundant and unnecessary. 

Further, compliance with such a 

requirement in an AD would be 

impracticable to demonstrate or track on 

an ongoing basis; therefore, a 

requirement to operate the airplane in 

such a manner would be unenforceable. 

Further, EASA AD 2023–0134 provides 

for the removal of the AFM amendment 

concurrently with the required 

modification. 

Explanation of Required Compliance 

Information 

In the FAA’s ongoing efforts to 

improve the efficiency of the AD 

process, the FAA developed a process to 

use some civil aviation authority (CAA) 

ADs as the primary source of 

information for compliance with 

requirements for corresponding FAA 

ADs. The FAA has been coordinating 

this process with manufacturers and 

CAAs. As a result, the FAA proposes to 

incorporate EASA AD 2023–0134 by 

reference in the FAA final rule. This 

proposed AD would, therefore, require 

compliance with EASA AD 2023–0134 

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 

EASA AD 2023–0134 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 EASA AD 2023–0134. 

Service information required by EASA 

AD 2023–0134 for compliance will be 

available at regulations.gov under 

Docket No. FAA–2023–1987 after the 

FAA final rule is published. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 26 

airplanes of U.S. registry. The FAA 

estimates the following costs to comply 

with this proposed AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Action Labor cost Parts cost Cost per product Cost on U.S. operators 

Retained actions from AD 

2021–17–02.

Up to 14 work-hours × $85 

per hour = Up to $1,190.

$100 Up to $1,290 .......................... Up to $33,540. 

New proposed actions ........... 50 work-hours × $85 per hour 

= $4,250.

0 $4,250 .................................... $110,500. 


ddrumheller on DSK120RN23PROD with PROPOSALS1
69104 Federal Register / Vol. 88, No. 192 / Thursday, October 5, 2023 / Proposed Rules 

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) 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: 

■ a. Removing Airworthiness Directive 

2021–17–02, Amendment 39–21685 (86 

FR 48490, August 31, 2021); and 

■ b. Adding the following new 

Airworthiness Directive: 

ATR—GIE Avions de Transport Re ́gional: 

Docket No. FAA–2023–1987; Project 

Identifier MCAI–2023–00807–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by November 

20, 2023. 

(b) Affected ADs 

This AD replaces AD 2021–17–02, 

Amendment 39 21685 (86 FR 48490, August 

31, 2021) (AD 2021–17–02). 

(c) Applicability 

This AD applies to all ATR—GIE Avions 

de Transport Re ́gional Model ATR42–200, 

–300, and –320 airplanes, certificated in any 

category. 

(d) Subject 

Air Transport Association (ATA) of 

America Code: 31, Instruments. 

(e) Unsafe Condition 

This AD was prompted by false activation 

of the stall warning system due to wiring 

damage on the wire bundle between an angle 

of attack (AOA) probe and the crew alerting 

computer, and the development of a wiring 

modification and aircraft flight manual 

(AFM) update to address the unsafe 

condition. The FAA is issuing this AD to 

address this condition, which could result in 

loss of control of the airplane during take-off 

and landing phases. 

(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, EASA AD 2023–0134, 

dated July 5, 2023 (EASA AD 2023–0134). 

(h) Exceptions to EASA AD 2023–0134 

(1) Where EASA AD 2023–0134 refers to 

‘‘27 October 2020 [the effective date of EASA 

AD 2020–0221],’’ this AD requires using 

‘‘December 3, 2020 (the effective date of AD 

2020–23–13)’’. 

(2) Where EASA AD 2023–0134 refers to 

‘‘02 February 2021 [the effective date of 

EASA AD 2021–00024],’’ this AD requires 

using ‘‘October 5, 2021 (the effective date of 

AD 2021–17–02, Amendment 39–21330 (85 

FR 73407, November 18, 2020))’’. 

(3) Where paragraph (2) of EASA AD 2023– 

0134 refers to ‘‘discrepancies,’’ for this AD, 

discrepancies include, but are not limited to, 

wire damage, missing or damaged conduits, 

and incorrect routing of wiring and conduits. 

(4) Where paragraph (2) of EASA AD 2023– 

0134 specifies to ‘‘contact ATR for approved 

instructions for corrective action and 

accomplish those instructions accordingly’’ if 

discrepancies are detected; for this AD if any 

discrepancy is detected, the discrepancy 

must be repaired before further flight using 

a method approved by the Manager, 

International Validation Branch, FAA; or 

EASA; or ATR—GIE Avions de Transport 

Re ́gional’s EASA Design Organization 

Approval (DOA). If approved by the DOA, 

the approval must include the DOAauthorized signature. 

(5) Paragraphs (4), (5), and (6) of EASA AD 

2023–0134 specify amending ‘‘the applicable 

AFM [aircraft flight manual] of that aeroplane 

by inserting the AFM change provided in 

Appendix 1 of this [EASA] AD,’’ however 

this AD requires amending ‘‘the existing 

AFM and applicable corresponding 

operational procedures to incorporate the 

limitations and procedures specified in 

Appendix 1 of EASA AD 2023–0134.’’ 

(6) Where paragraphs (4) and (5) of EASA 

AD 2023–0134 specify to ‘‘inform all flight 

crews, and, thereafter, operate the aeroplane 

accordingly,’’ this AD does not require those 

actions as those actions are already required 

by existing FAA operating regulations (see 14 

CFR 91.9, 91.505, and 121.137). 

(7) Where EASA AD 2023–0134 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(8) This AD does not adopt the ‘‘Remarks’’ 

section of EASA AD 2023–0134. 

(i) Additional AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): 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 

responsible Flight Standards Office, as 

appropriate. If sending information directly 

to the manager of the International Validation 

Branch, mail it to the address identified in 

paragraph (j) of this AD or email to: 9-AVSAIR-730-AMOC@faa.gov. If mailing 

information, also submit information by 

email. 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, International Validation 

Branch, FAA; or EASA; or ATR—GIE Avions 

de Transport Re ́gional’s EASA DOA. If 

approved by the DOA, the approval must 

include the DOA-authorized signature. 

(j) Additional Information 

For more information about this AD, 

contact Shahram Daneshmandi, Aviation 

Safety Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; telephone: 

206–231–3220; email: 

shahram.daneshmandi@faa.gov. 

(k) 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. 


ddrumheller on DSK120RN23PROD with PROPOSALS1
Federal Register / Vol. 88, No. 192 / Thursday, October 5, 2023 / Proposed Rules 69105 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2023–0134, dated July 5, 2023 

(EASA AD 2023–0134). 

(ii) [Reserved] 

(3) For EASA AD 2023–0134, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 8999 

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

easa.europa.eu. You may find this EASA AD 

on the EASA website ad.easa.europa.eu. 

(4) You may view this material at the FAA, 

Airworthiness Products Section, Operational 

Safety Branch, 2200 South 216th Street, Des 

Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. 

(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: 

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued on September 28, 2023. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2023–22071 Filed 10–4–23; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1896; Project 

Identifier MCAI–2023–00837–T] 

RIN 2120–AA64 

Airworthiness Directives; Saab AB, 

Support and Services (Formerly 

Known as Saab AB, Saab Aeronautics) 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for all 

Saab AB, Support and Services Model 

SAAB 2000 airplanes. This proposed 

AD was prompted by a review of the 

anti-skid system revealed the possibility 

of inadvertently connecting the inboard 

harness to the outboard channel (and 

vice versa) of the wheel speed 

transducers in the main landing gear 

(MLG) wheel axles. This proposed AD 

would require installing color markings 

on the harnesses and the wheel axles, to 

ensure proper installation and 

connection of the anti-skid harnesses, 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 20, 

2023. 

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 

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. 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1896; 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 mandatory 

continuing airworthiness information 

(MCAI), any comments received, and 

other information. The street address for 

Docket Operations is listed above. 

Material Incorporated by Reference: 

• For material that is proposed for 

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

Germany; telephone +49 221 8999 000; 

email ADs@easa.europa.eu; website 

easa.europa.eu. You may find this 

material on the EASA website 

ad.easa.europa.eu. It is also available at 

regulations.gov under Docket No. FAA– 

2023–1896. 

• You may view this material at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th Street, Des Moines, WA. For 

information on the availability of this 

material at the FAA, call 206–231–3195. 

FOR FURTHER INFORMATION CONTACT: 

Shahram Daneshmandi, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 

telephone: 206–231–3220; email: 

shahram.daneshmandi@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–2023–1896; Project Identifier 

MCAI–2023–00837–T’’ 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 

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 Shahram 

Daneshmandi, Aviation Safety Engineer, 

FAA, 1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; telephone: 206– 

231–3220; email: 

shahram.daneshmandi@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 2023–0135, 

dated July 10, 2023 (EASA AD 2023– 

0135) (also referred to as the MCAI), to 

correct an unsafe condition for all Saab 

AB, Support and Services Model SAAB 

2000 airplanes. The MCAI states a 

system review of the anti-skid system 

revealed the possibility of inadvertently 

connecting the inboard harness to the 

outboard channel (and vice versa) of the 

wheel speed transducers in the main 

landing gear (MLG) wheel axles. To 

address the unsafe condition, the MCAI 

requires modification of the MLG and 


ddrumheller on DSK120RN23PROD with PROPOSALS1