Federal Register / Vol. 87, No. 68 / Friday, April 8, 2022 / Proposed Rules 20787 

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

by searching for and locating Docket No. 

FAA–2022–0396. 

(2) For more information about this AD, 

contact Shahram Daneshmandi, Aerospace 

Engineer, Large Aircraft Section, FAA, 

International Validation Branch, 2200 South 

216th St., Des Moines, WA 98198; telephone 

and fax 206–231–3220; email 

shahram.daneshmandi@faa.gov. 

Issued on April 4, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–07470 Filed 4–7–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0399; Project 

Identifier MCAI–2021–00983–T] 

RIN 2120–AA64 

Airworthiness Directives; Embraer S.A. 

(Type Certificate Previously Held by 

Yabora ̃ Indu ́ stria Aerona ́utica S.A.) 

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 

certain Embraer S.A. Model ERJ 190– 

100 ECJ airplanes. This proposed AD 

was prompted by a determination that 

new or more restrictive airworthiness 

limitations are necessary and that some 

life limits on some components used on 

the main landing gear (MLG) may not be 

properly controlled, due to 

interchanging those parts between 

airplane models with different 

operational loads during repair or 

overhaul. This proposed AD would 

require revising the existing 

maintenance or inspection program, as 

applicable, to incorporate new or more 

restrictive airworthiness limitations; 

reviewing maintenance records of the 

MLG assemblies to determine if any lifelimited item has been replaced and 

reporting those findings; and reidentifying the MLG assemblies and 

certain components; as specified in an 

Ageˆncia Nacional de Aviac ̧a ̃o Civil 

(ANAC) AD, which is proposed for 

incorporation by reference. This 

proposed AD would also prohibit 

installing certain part numbers. 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 May 23, 2022. 

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 will be incorporated 

by reference (IBR) in this AD, contact 

National Civil Aviation Agency (ANAC), 

Aeronautical Products Certification 

Branch (GGCP), Rua Dr. Orlando 

Feirabend Filho, 230—Centro 

Empresarial Aquarius—Torre B— 

Andares 14 a 18, Parque Residencial 

Aquarius, CEP 12.246–190—Sa ̃o Jose ́

dos Campos—SP, Brazil; telephone 55 

(12) 3203–6600; email pac@anac.gov.br; 

internet www.anac.gov.br/en/. You may 

find this material on the ANAC website 

at https://sistemas.anac.gov.br/ 

certificacao/DA/DAE.asp. You may 

view this material 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 in the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0399. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0399; 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. 

FOR FURTHER INFORMATION CONTACT: 

Krista Greer, Aerospace Engineer, Large 

Aircraft Section, FAA, International 

Validation Branch, 2200 South 216th 

St., Des Moines, WA 98198; telephone 

and fax 206–231–3221; email 

krista.greer@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–2022–0399; Project Identifier 

MCAI–2021–00983–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 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 Krista Greer, 

Aerospace Engineer, Large Aircraft 

Section, FAA, International Validation 

Branch, 2200 South 216th St., Des 

Moines, WA 98198; telephone and fax 

206–231–3221; email krista.greer@

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 ANAC, which is the aviation 

authority for Brazil, has issued ANAC 

AD 2021–08–01, effective August 31, 

2021 (ANAC AD 2021–08–01) (also 

referred to as the MCAI), to correct an 

unsafe condition for certain Embraer 

S.A. Model ERJ 190–100 ECJ airplanes. 


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20788 Federal Register / Vol. 87, No. 68 / Friday, April 8, 2022 / Proposed Rules 

This proposed AD was prompted by 

a determination that new or more 

restrictive airworthiness limitations are 

necessary and that some life limits on 

some structural parts (components) used 

on the MLG may not be properly 

controlled, due to interchanging those 

parts between airplane models with 

different operational loads. Structural 

parts and life limited items used in 

commercial versions of Models ERJ 

190–100 and ERJ 190–200 airplanes are 

common to the ones used on Model ERJ 

190–100 ECJ (Lineage 1000) airplanes. 

Although the MLG assemblies are not 

interchangeable between models, some 

components (e.g. pins and bolts) of the 

MLG assemblies can be exchanged 

between models; this exchange may 

have happened during repair or 

overhaul of an MLG assembly. While 

these models have similar designs, their 

usage is very different. Life limits for 

airplane parts are based on fatigue tests, 

which simulate typical usage for the 

airplane. These fatigue tests are based 

on the entire MLG assembly remaining 

the same, not on components of the 

MLG assembly being interchanged 

partway through the test. Since the 

operational loads are different for each 

airplane model, an adequate life limit 

may not be properly controlled in this 

scenario. Therefore, ANAC has 

determined that the MLG assemblies 

that cannot be interchanged must be reidentified for use only on Model ERJ 

190–100 ECJ airplanes, and the 

components that may have been 

interchanged must also be re-identified 

and tracked. Embraer S.A. and ANAC 

will use the reports required by this 

proposed AD to analyze the data and 

determine if the life limits for the MLG 

assemblies or their components need to 

be revised based on components being 

interchanged between models. The FAA 

is proposing this AD to address 

potentially inadequate life limits on the 

MLG due to different operational loads, 

which could impact the structural 

integrity of the airplane. See the MCAI 

for additional background information. 

Related Service Information Under 1 

CFR Part 51 

ANAC AD 2021–08–01 specifies new 

or more restrictive airworthiness 

limitations for airplane structures and 

safe life limits; reviewing maintenance 

records of the MLG side stay assembly 

and the MLG shock strut assembly to 

determine if any life-limited item has 

been replaced and reporting those 

findings; and reidentifying certain part 

numbers of the MLG side stay assembly 

and the MLG shock strut assembly and 

their components. ANAC AD 2021–08– 

01 also specifies prohibiting the 

installation of certain part numbers. 

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 the 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 

designs. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require 

revising the existing maintenance or 

inspection program, as applicable, to 

incorporate new or more restrictive 

airworthiness limitations; reviewing 

maintenance records of the MLG side 

stay assembly and the MLG shock strut 

assembly to determine if any life-limited 

item has been replaced and reporting 

those findings; and re-identifying the 

MLG side stay assembly and the MLG 

shock strut assembly and certain 

components; which are specified in 

ANAC AD 2021–08–01 described 

previously, except for any differences 

identified as exceptions in the 

regulatory text of this proposed AD. 

This proposed AD would also prohibit 

installing certain part numbers. 

This proposed AD would require 

revisions to certain operator 

maintenance documents to include new 

actions (e.g., inspections). Compliance 

with these actions is required by 14 CFR 

91.403(c). For airplanes that have been 

previously modified, altered, or repaired 

in the areas addressed by this proposed 

AD, the operator may not be able to 

accomplish the actions described in the 

revisions. In this situation, to comply 

with 14 CFR 91.403(c), the operator 

must request approval for an alternative 

method of compliance according to 

paragraph (j)(1) 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 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 ANAC AD 2021–08–01 by 

reference in the FAA final rule. This 

proposed AD would, therefore, require 

compliance with ANAC AD 2021–08–01 

in its entirety through that 

incorporation, except for any differences 

identified as exceptions in the 

regulatory text of this proposed AD. 

Service information required by ANAC 

AD 2021–08–01 for compliance will be 

available at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2022–0399 after the FAA final 

rule is published. 

Airworthiness Limitation ADs Using 

the New Process 

The FAA’s process of incorporating 

by reference MCAI ADs as the primary 

source of information for compliance 

with corresponding FAA ADs has been 

limited to certain MCAI ADs (primarily 

those with service bulletins as the 

primary source of information for 

accomplishing the actions required by 

the FAA AD). However, the FAA is now 

expanding the process to include MCAI 

ADs that require a change to 

airworthiness limitation documents, 

such as airworthiness limitation 

sections. 

For these ADs that incorporate by 

reference an MCAI AD that changes 

airworthiness limitations, the FAA 

requirements are unchanged. Operators 

must revise the existing maintenance or 

inspection program, as applicable, to 

incorporate the information specified in 

the new airworthiness limitation 

document. The airworthiness 

limitations must be followed according 

to 14 CFR 91.403(c) and 91.409(e). 

The previous format of the 

airworthiness limitation ADs included a 

paragraph that specified that no 

alternative actions (e.g., inspections) or 

intervals may be used unless the actions 

and intervals are approved as an 

alternative method of compliance 

(AMOC) in accordance with the 

procedures specified in the AMOCs 

paragraph under ‘‘Additional FAA 

Provisions.’’ This new format includes a 

‘‘New Provisions for Alternative Actions 

and Intervals’’ paragraph that does not 

specifically refer to AMOCs, but 

operators may still request an AMOC to 

use an alternative action or interval. 

Interim Action 

The FAA considers this proposed AD 

interim action. The inspection reports 

required by this proposed AD will 

enable the manufacturer to gain better 

insight into the extent to which 

components have been interchanged 

between models and determine if 


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Federal Register / Vol. 87, No. 68 / Friday, April 8, 2022 / Proposed Rules 20789 

additional actions are required to 

address the identified unsafe condition. 

Based on the result of the 

manufacturer’s analyses, the FAA might 

consider further rulemaking. 

Costs of Compliance 

The FAA estimates that this proposed 

AD would affect 10 airplanes of U.S. 

registry. The FAA estimates the 

following costs to comply with this 

proposed AD: 

The FAA has determined that revising 

the existing maintenance or inspection 

program takes an average of 90 workhours per operator, although the agency 

recognizes that this number may vary 

from operator to operator. Since 

operators incorporate maintenance or 

inspection program changes for their 

affected fleet(s), the FAA has 

determined that a per-operator estimate 

is more accurate than a per-airplane 

estimate. Therefore, the agency 

estimates the average total cost per 

operator to be $7,650 (90 work-hours × 

$85 per work-hour). 

ESTIMATED COSTS FOR REQUIRED ACTIONS * 

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

6 work-hours × $85 per hour = $510 .......................................................................................... $0 $510 $5,100 

* Table does not include estimated costs for reporting and revising the existing maintenance or inspection program. 

The FAA estimates that it would take 

about 1 work-hour per product to 

comply with the proposed reporting 

requirement in this proposed AD. The 

average labor rate is $85 per hour. Based 

on these figures, the FAA estimates the 

cost of reporting on U.S. operators to be 

$850, or $85 per product. 

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 

individuals. The FAA does not control 

warranty coverage for affected 

individuals. As a result, the FAA has 

included all known costs in the cost 

estimate. 

Paperwork Reduction Act 

A federal agency may not conduct or 

sponsor, and a person is not required to 

respond to, nor shall a person be subject 

to a penalty for failure to comply with 

a collection of information subject to the 

requirements of the Paperwork 

Reduction Act unless that collection of 

information displays a current valid 

OMB Control Number. The OMB 

Control Number for this information 

collection is 2120–0056. Public 

reporting for this collection of 

information is estimated to take 

approximately 1 hour per response, 

including the time for reviewing 

instructions, searching existing data 

sources, gathering and maintaining the 

data needed, and completing and 

reviewing the collection of information. 

All responses to this collection of 

information are mandatory. Send 

comments regarding this burden 

estimate or any other aspect of this 

collection of information, including 

suggestions for reducing this burden, to: 

Information Collection Clearance 

Officer, Federal Aviation 

Administration, 10101 Hillwood 

Parkway, Fort Worth, TX 76177–1524. 

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 has 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 adding 

the following new airworthiness 

directive: 

Embraer S.A. (Type Certificate Previously 

Held by Yabora ̃ Indu ́ stria Aerona ́utica 

S.A.): Docket No. FAA–2022–0399; 

Project Identifier MCAI–2021–00983–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by May 23, 

2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Embraer S.A. (Type 

Certificate Previously Held by Yabora ̃

Indu ́ stria Aerona ́utica S.A.) Model ERJ 190– 

100 ECJ airplanes, certificated in any 

category, as identified in Ageˆncia Nacional 

de Aviac ̧a ̃o Civil (ANAC) AD 2021–08–01, 

effective August 31, 2021 (ANAC AD 2021– 

08–01). 

(d) Subject 

Air Transport Association (ATA) of 

America Code 05, Time Limits/Maintenance 

Checks; 32, Landing Gear. 

(e) Unsafe Condition 

This AD was prompted by a determination 

that new or more restrictive airworthiness 


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limitations are necessary and that some life 

limits on some structural parts used on the 

main landing gear (MLG) may not be 

properly controlled, due to interchanging 

those parts between airplane models with 

different operational loads during repair or 

overhaul. The FAA is issuing this AD to 

address potentially inadequate life limits on 

the MLG due to different operational loads, 

which could impact the structural integrity of 

the airplane. 

(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, ANAC AD 2021–08–01. 

(h) Exceptions to ANAC AD 2021–08–01 

(1) Where ANAC AD 2021–08–01 refers to 

its effective date, this AD requires using the 

effective date of this AD. 

(2) The initial compliance time for doing 

the tasks specified in paragraph (a) of ANAC 

AD 2021–08–01 is no later than the 

applicable ‘‘life limit cycles’’ specified in the 

service information referenced in ANAC AD 

2021–08–01, or within 90 days after the 

effective date of this AD, whichever occurs 

later. 

(3) Paragraph (b) of ANAC AD 2021–08–01 

specifies to report inspection results to 

Embraer within a certain compliance time. 

For this AD, report inspection results at the 

applicable time specified in paragraph 

(h)(3)(i) or (ii) of this AD. 

(i) If the inspection was done on or after 

the effective date of this AD: Submit the 

report within 90 days after the inspection. 

(ii) If the inspection was done before the 

effective date of this AD: Submit the report 

within 90 days after the effective date of this 

AD. 

(4) The ‘‘Alternative Method of 

Compliance (AMOC)’’ section of ANAC AD 

2021–08–01 does not apply to this AD. 

(i) Provisions for Alternative Actions and 

Intervals 

After the existing maintenance or 

inspection program has been revised as 

required by paragraph (g) of this AD, no 

alternative actions (e.g., inspections) and 

intervals are allowed, unless they are 

approved as specified in paragraph (a) of 

ANAC AD 2021–08–01. 

(j) Additional AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, Large Aircraft 

Section, 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 Large Aircraft 

Section, International Validation Branch, 

send it to the attention of the person 

identified in paragraph (k)(2) of this AD. 

Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. 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. 

(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, Large Aircraft Section, 

International Validation Branch, FAA; or 

ANAC; or ANAC’s authorized Designee. If 

approved by the ANAC Designee, the 

approval must include the Designee’s 

authorized signature. 

(k) Related Information 

(1) For ANAC AD 2021–08–01, contact 

National Civil Aviation Agency (ANAC), 

Aeronautical Products Certification Branch 

(GGCP), Rua Dr. Orlando Feirabend Filho, 

230—Centro Empresarial Aquarius—Torre 

B—Andares 14 a 18, Parque Residencial 

Aquarius, CEP 12.246–190—Sa ̃o Jose ́ dos 

Campos—SP, Brazil; telephone 55 (12) 3203– 

6600; email pac@anac.gov.br; internet 

www.anac.gov.br/en/. You may find this 

ANAC AD on the ANAC website at https:// 

sistemas.anac.gov.br/certificacao/DA/ 

DAE.asp. You may view this material 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. This material may be found 

in the AD docket at https://

www.regulations.gov by searching for and 

locating Docket No. FAA–2022–0399. 

(2) For more information about this AD, 

contact Krista Greer, Aerospace Engineer, 

Large Aircraft Section, FAA, International 

Validation Branch, 2200 South 216th St., Des 

Moines, WA 98198; telephone and fax 206– 

231–3221; email krista.greer@faa.gov. 

Issued on April 4, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–07472 Filed 4–7–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0397; Project 

Identifier MCAI–2021–01354–A] 

RIN 2120–AA64 

Airworthiness Directives; Piaggio Aero 

Industries S.p.A 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 

certain Piaggio Aero Industries S.p.A. 

(Piaggio) Model P–180 airplanes. This 

proposed AD results from mandatory 

continuing airworthiness information 

(MCAI) originated by an aviation 

authority of another country to identify 

and correct an unsafe condition on an 

aviation product. The MCAI identifies 

the unsafe condition as altimetry system 

errors in the air data computers (ADCs) 

and stand-by instrument systems. This 

proposed AD would require amending 

the existing airplane flight manual 

(AFM), installing improved ADCs and a 

detachable configuration module 

(DCM), and revising the existing 

instructions for continued 

airworthiness. 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 May 23, 2022. 

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 service information identified in 

this NPRM, contact Piaggio Aero 

Industries S.p.A., Dominico Noceti, 

Pionieri e Aviatori d’Italia snc, Genoa, 

16154, Italy; phone: +39 335 810 59 20; 

email: DNoceti@piaggioaviation.it; 

website: https://www.technicalsupport@

piaggioaerospace.it. You may view this 

service information at the FAA, 

Airworthiness Products Section, 

Operational Safety Branch, 901 Locust, 

Kansas City, MO 64106. 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–2022–0397; 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 MCAI, any comments 

received, and other information. The 

street address for Docket Operations is 

listed above. 

FOR FURTHER INFORMATION CONTACT: 

Mike Kiesov, Aviation Safety Engineer, 


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