Federal Register / Vol. 88, No. 172 / Thursday, September 7, 2023 / Proposed Rules 61485 

(3) If level 1 corrosion is found during the 

inspection required by paragraph (g)(1) of 

this AD, no further action is required by this 

AD. 

(4) If level 2 corrosion is found during the 

inspection required by paragraph (g)(1) of 

this AD, do the action in either paragraph 

(g)(4)(i) or (ii) of this AD. 

(i) Before further flight replace the HS 

assembly or repair the HS assembly in 

accordance with instructions from either the 

Manager, International Validation Branch, 

FAA; EASA; or Piaggio’s EASA DOA. If 

approved by the DOA, the approval must 

include the DOA-authorized signature. 

(ii) Within 400 hours TIS or 12 months, 

whichever occurs first after the inspection 

required by paragraph (g)(1) of this AD, and 

thereafter at intervals not to exceed 400 hours 

TIS or 12 months, whichever occurs first 

after the most recent inspection, repeat the 

inspection required by paragraph (g)(1) of 

this AD. In addition, inspect the internal 

composite structure of the HS central box for 

surface cracks, distortion, and damage. After 

each repetitive inspection, before further 

flight, assess the inspection findings as 

required by paragraph (g)(2) of this AD. If it 

is determined that the level 2 corrosion has 

worsened since the last inspection; or if any 

surface cracks, distortion, or damage is found 

during any inspection; before further flight, 

replace the HS assembly or repair the HS 

assembly in accordance with instructions 

from either the Manager, International 

Validation Branch, FAA; EASA; or Piaggio’s 

EASA DOA. If approved by the DOA, the 

approval must include the DOA-authorized 

signature. These inspections must be 

repeated at intervals not to exceed 400 hours 

TIS or 12 months, whichever occurs first 

after the most recent inspection, until a 

maximum of 660 hours TIS or 13 months, 

whichever occurs first after the inspection 

required by paragraph (g)(1) of this AD has 

been reached, at which time the HS assembly 

must be repaired or replaced. 

(5) If level 3 corrosion is found during the 

inspection required by paragraph (g)(1) of 

this AD, do the actions required by paragraph 

(g)(5)(i) or (ii) of this AD. 

(i) Before further flight after the inspection 

required by paragraph (g)(1) of this AD, 

replace the HS assembly or repair the HS 

assembly in accordance with instructions 

from either the Manager, International 

Validation Branch, FAA; EASA; or Piaggio’s 

EASA DOA. If approved by the DOA, the 

approval must include the DOA-authorized 

signature. 

(ii) Within 200 hours TIS or 6 months, 

whichever occurs first after the inspection 

required by paragraph (g)(1) of this AD, and 

thereafter at intervals not to exceed 200 hours 

TIS or 6 months, whichever occurs first after 

the most recent inspection, repeat the 

inspection required by paragraph (g)(1) of 

this AD. In addition, inspect the internal 

composite structure of the HS central box for 

surface cracks, distortion, and damage. After 

each repetitive inspection, before further 

flight, assess the inspection findings as 

required by paragraph (g)(2) of this AD. If it 

is determined that the level 3 corrosion has 

worsened since the last inspection; or if any 

surface cracks, distortion, or damage is 

found; before further flight, replace the HS 

assembly or repair the HS assembly in 

accordance with instructions from either the 

Manager, International Validation Branch, 

FAA; EASA; or Piaggio’s EASA DOA. If 

approved by the DOA, the approval must 

include the DOA-authorized signature. These 

inspections must be repeated at intervals not 

to exceed 200 hours TIS or 6 months, 

whichever occurs first after the most recent 

inspection, until a maximum of 660 hours 

TIS or 13 months, whichever occurs first 

after the inspection required by paragraph 

(g)(1) of this AD, at which time the HS 

assembly must be repaired or replaced. 

(6) Repair or replacement of the HS 

assembly is terminating action for the 

repetitive inspections required by paragraphs 

(g)(4)(ii) and (g)(5)(ii) of this AD. 

(h) Credit for Previous Actions 

You may take credit for the actions 

required by paragraphs (g)(1) through (5) of 

this AD if you performed those actions before 

the effective date of this AD using Piaggio 

Aerospace Service Bulletin 80–0489, 

Revision 1, dated May 13, 2022. 

(i) 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 local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the International Validation 

Branch, mail it to the address identified in 

paragraph (j)(2) of this AD or email to: 9- 

AVS-AIR-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 local flight standards district office/ 

certificate holding district office. 

(j) Additional Information 

(1) Refer to EASA AD 2023–0007, dated 

January 13, 2023, for related information. 

This EASA AD may be found in the AD 

docket at regulations.gov under Docket No. 

FAA–2023–1819. 

(2) For more information about this AD, 

contact Sungmo Cho, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; phone: (781) 238– 

7241; email: sungmo.d.cho@faa.gov. 

(3) Service information identified in this 

AD that is not incorporated by reference is 

available at the addresses specified in 

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

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Piaggio Aerospace Service Bulletin 80– 

0489, Revision 2, dated November 30, 2022. 

(ii) [Reserved] 

(3) For service information identified in 

this AD, contact Piaggio Aviation S.p.A., 

P180 Customer Support, via Pionieri e 

Aviatori d’Italia, snc—16154 Genoa, Italy; 

phone: +39 331 679 74 93; email: 

technicalsupport@piaggioaerospace.it. 

(4) 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. 

(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 August 30, 2023. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2023–19092 Filed 9–6–23; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1816; Project 

Identifier MCAI–2021–01460–R] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Helicopters Deutschland GmbH (AHD) 

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 all 

Airbus Helicopters Deutschland GmbH 

(AHD) Model MBB–BK 117 D–3 

helicopters. This proposed AD was 

prompted by recalculations of the 

inspection intervals for certain parts. 

This proposed AD would require 

revising the airworthiness limitations 

section (ALS) of the existing helicopter 

maintenance manual or instructions for 

continued airworthiness for your 

helicopter and the existing approved 

maintenance or inspection program for 

your helicopter, as applicable, to reduce 

the inspection interval of certain 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. 


ddrumheller on DSK120RN23PROD with PROPOSALS1
61486 Federal Register / Vol. 88, No. 172 / Thursday, September 7, 2023 / Proposed Rules 

DATES: The FAA must receive comments 

on this proposed AD by October 23, 

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–2023–1816; 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. 

Material Incorporated by Reference: 

• For EASA material that is proposed 

for IBR in this NPRM, contact EASA, 

Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 

8999 000; email ADs@easa.europa.eu; 

internet easa.europa.eu. You may find 

the EASA material on the EASA website 

at 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. The EASA material 

is also available at regulations.gov under 

Docket No. FAA–2023–1816. 

Other Related Service Information: 

For Airbus Helicopters 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 

airbus.com/en/products-services/ 

helicopters/hcare-services/airbusworld. 

You may also view this service 

information at the FAA contact 

information under Material 

Incorporated by Reference above. 

FOR FURTHER INFORMATION CONTACT: Dan 

McCully, Aviation Safety Engineer, 

FAA, 1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; telephone (303) 

342–1080; email william.mccully@

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–2023–1816; Project Identifier 

MCAI–2021–01460–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 

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 Dan McCully, 

Aviation Safety Engineer, FAA, 1600 

Stewart Avenue, Suite 410, Westbury, 

NY 11590; telephone (303) 342–1080; 

email william.mccully@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 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2021–0290, 

dated and corrected December 23, 2021 

(EASA AD 2021–0290), to correct an 

unsafe condition for all serial-numbered 

Airbus Helicopters Deutschland GmbH 

Model MBB–BK117 D–3 and D–3m 

helicopters. 

This proposed AD was prompted by 

recalculations of the inspection 

intervals for certain parts. The FAA is 

proposing this AD to reduce the 

inspection intervals for certain parts. 

See EASA AD 2021–0290 for additional 

background information. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2021–0290 requires 

replacing components before exceeding 

their life limits and accomplishing 

maintenance tasks within thresholds 

and intervals specified in the applicable 

ALS. Depending on the results of the 

maintenance tasks, EASA AD 2021– 

0290 requires accomplishing corrective 

action(s) or contacting AHD [Airbus 

Helicopters Deutschland GmbH] for 

approved instructions and 

accomplishing those instructions. EASA 

AD 2021–0290 also requires revising the 

Aircraft Maintenance Programme (AMP) 

by incorporating the limitations, tasks, 

and associated thresholds and intervals 

described in the specified ALS as 

applicable to helicopter model and 

configuration. Revising the AMP 

constitutes terminating action for the 

requirements to replace components 

before exceeding their life limits and 

accomplish maintenance tasks within 

thresholds and intervals specified in the 

applicable ALS as required by EASA AD 

2021–0290. 

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. 

Other Related Service Information 

The FAA reviewed Airbus Helicopters 

Alert Service Bulletin ASB MBB–BK117 

D–3–04A–001, Revision 0, dated 

December 22, 2021. This service 

information specifies checking the total 

accumulated flight hours since new for 

bolt part number (P/N) D671M7501201, 

bolt P/N D671M7501211, and mast bolt 

P/N D620M0501203, and accomplishing 

the airworthiness inspection within the 

reduced airworthiness inspection 

interval of 400 flight hours. 

The FAA also reviewed Airbus MBB– 

BK117 D–3 Chapter 04, ALS, Revision 1, 

dated December 14, 2021. This service 

information specifies airworthiness 

limitations, tasks, and associated 

thresholds and intervals for various 

parts. Revision 1 of this service 

information specifies various updates 

for certain components. 


ddrumheller on DSK120RN23PROD with PROPOSALS1
Federal Register / Vol. 88, No. 172 / Thursday, September 7, 2023 / Proposed Rules 61487 

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 the same 

type design. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require 

accomplishing the actions specified in 

EASA AD 2021–0290, described 

previously, as incorporated by 

reference, except for any differences 

identified as exceptions in the 

regulatory text of this proposed AD and 

except as discussed under ‘‘Differences 

Between this Proposed AD and the 

EASA 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 EASA AD 2021–0290 by 

reference in the FAA final rule. This 

proposed AD would, therefore, require 

compliance with EASA AD 2021–0290 

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 2021–0290 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 2021–0290. 

Service information referenced in EASA 

AD 2021–0290 for compliance will be 

available at regulations.gov under 

Docket No. FAA–2023–1816 after the 

FAA final rule is published. 

Differences Between This Proposed AD 

and the EASA AD 

EASA AD 2021–0290 applies to 

Model MBB–BK117 D–3m helicopters, 

whereas this proposed AD would not 

because that model is not FAA typecertificated. 

EASA AD 2021–0290 requires 

replacing certain components before 

exceeding applicable life limits, 

accomplishing certain maintenance 

tasks within thresholds and intervals as 

specified in the ALS, as defined within, 

and depending on the results, 

accomplishing corrective action within 

the compliance time specified in that 

ALS. EASA AD 2021–0290 also requires 

revising the approved AMP to 

incorporate the limitations, tasks, and 

associated thresholds and intervals 

described in that ALS within 12 months 

after its effective date. Whereas, this 

proposed AD would require revising 

existing documents and programs 

within 30 days to incorporate the 

limitations, tasks, and associated 

thresholds and intervals described in 

that ALS, and clarifies that if an 

incorporated limitation or threshold 

therein is reached before 30 days after 

the effective date of the final rule of this 

proposed AD, you still have up to 30 

days after the effective date of the final 

rule of this proposed AD to accomplish 

the corresponding task. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 29 

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. 

Revising the ALS of the existing 

helicopter maintenance manual or 

instructions for continued airworthiness 

for your helicopter and the existing 

approved maintenance or inspection 

program for your helicopter, as 

applicable, would take about 2 workhours for an estimated cost of $170 per 

helicopter and $4,930 for the U.S. fleet. 

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 adding 

the following new airworthiness 

directive: 

Airbus Helicopters Deutschland GmbH 

(AHD): Docket No. FAA–2023–1816; 

Project Identifier MCAI–2021–01460–R. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by October 23, 

2023. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus Helicopters 

Deutschland GmbH (AHD) Model MBB–BK 

117 D–3 helicopters, certificated in any 

category. 

(d) Subject 

Joint Aircraft Service Component (JASC) 

Code: 6710, Main Rotor Control. 


ddrumheller on DSK120RN23PROD with PROPOSALS1
61488 Federal Register / Vol. 88, No. 172 / Thursday, September 7, 2023 / Proposed Rules 

(e) Unsafe Condition 

This AD was prompted by recalculations of 

the inspection intervals for certain parts. The 

FAA is issuing this AD to reduce the 

inspection intervals for certain parts. The 

unsafe condition, if not addressed, could 

result in failure of a part and loss of control 

of the helicopter. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

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 2021–0290, dated 

and corrected December 23, 2021 (EASA AD 

2021–0290). 

(h) Exceptions to EASA AD 2021–0290 

(1) Where EASA AD 2021–0290 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) This AD does not adopt the 

requirements specified in paragraphs (1), (2), 

(4), and (5) of EASA AD 2021–0290. 

(3) Where paragraph (3) of EASA AD 2021– 

0290 specifies revising ‘‘the approved AMP’’ 

within 12 months after its effective date, this 

AD requires revising the airworthiness 

limitations section of your existing helicopter 

maintenance manual or instructions for 

continued airworthiness and your existing 

approved maintenance or inspection 

program, as applicable, within 30 days after 

the effective date of this AD. 

(4) The initial compliance time for doing 

the tasks specified in paragraph (3) of EASA 

AD 2021–0290 is on or before the applicable 

‘‘limitations’’ and ‘‘associated thresholds’’ as 

incorporated by the requirements of 

paragraph (3) of EASA AD 2021–0290, or 

within 30 days after the effective date of this 

AD, whichever occurs later. 

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

section of EASA AD 2021–0290. 

(i) Provisions for Alternative Actions and 

Intervals 

After the airworthiness limitations section 

of the existing helicopter maintenance 

manual or instructions for continued 

airworthiness; and the existing approved 

maintenance or inspection program, as 

applicable, has been revised as required by 

paragraph (g) of this AD, no alternative 

actions (e.g., inspections) and associated 

thresholds and intervals, including life 

limits, are allowed unless they are approved 

as specified in the provisions of the ‘‘Ref. 

Publications’’ section of EASA AD 2021– 

0290. 

(j) Special Flight Permit 

Special flight permits are prohibited. 

(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) 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 

For more information about this AD, 

contact Dan McCully, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone (303) 

342–1080; email william.mccully@faa.gov. 

(m) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2021–0290, dated and corrected 

December 23, 2021. 

(ii) [Reserved] 

(3) For EASA AD 2021–0290, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 8999 

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

easa.europa.eu. You may find the EASA 

material on the EASA website at 

ad.easa.europa.eu. 

(4) You may view this service information 

at the FAA, Office of the Regional Counsel, 

Southwest Region, 10101 Hillwood Pkwy., 

Room 6N–321, Fort Worth, TX 76177. For 

information on the availability of this 

material at the FAA, call (817) 222–5110. 

(5) You may view this 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 August 30, 2023. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2023–19080 Filed 9–6–23; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1821; Project 

Identifier MCAI–2022–01045–A] 

RIN 2120–AA64 

Airworthiness Directives; Viking Air 

Limited (Type Certificate Previously 

Held by Bombardier Inc. and de 

Havilland, Inc.) 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 

Viking Air Limited (type certificate 

previously held by Bombardier Inc. and 

de Havilland, Inc.) (Viking) Model 

DHC–3 airplanes. This proposed AD 

was prompted by a report of cracking in 

the left-hand side (LHS) and right-hand 

side (RHS) lower engine mount pickup 

fittings. This proposed AD would 

require a one-time inspection of the 

affected parts for cracking, deformation, 

corrosion, fretting or wear, paint or 

surface coating damage, and loose, 

missing, or broken fasteners, and 

applicable corrective actions. This 

proposed AD would also require 

reporting the inspection results. The 

FAA is proposing this AD to address the 

unsafe condition on these products. 

DATES: The FAA must receive comments 

on this NPRM by October 23, 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–2023–1821; 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. 


ddrumheller on DSK120RN23PROD with PROPOSALS1