Federal Register / Vol. 87, No. 118 / Tuesday, June 21, 2022 / Proposed Rules 36781 

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, Large Aircraft Section, 

International Validation Branch, FAA; or 

EASA; or Airbus SAS’s EASA Design 

Organization Approval (DOA). If approved by 

the DOA, the approval must include the 

DOA-authorized signature. 

(3) Required for Compliance (RC): Except 

as required by paragraph (i)(2) of this AD, if 

any service information contains procedures 

or tests that are identified as RC, those 

procedures and tests must be done to comply 

with this AD; any procedures or tests that are 

not identified as RC are recommended. Those 

procedures and tests that are not identified 

as RC may be deviated from using accepted 

methods in accordance with the operator’s 

maintenance or inspection program without 

obtaining approval of an AMOC, provided 

the procedures and tests identified as RC can 

be done and the airplane can be put back in 

an airworthy condition. Any substitutions or 

changes to procedures or tests identified as 

RC require approval of an AMOC. 

(j) Related Information 

(1) For EASA AD 2022–0026, contact 

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, 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–2022–0689. 

(2) For more information about this AD, 

contact Vladimir Ulyanov, Aerospace 

Engineer, Large Aircraft Section, FAA, 

International Validation Branch, 2200 South 

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

206–231–3223; email vladimir.ulyanov@

faa.gov. 

Issued on June 14, 2022. 

Christina Underwood, 

Acting Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–13094 Filed 6–17–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0690; Project 

Identifier AD–2021–01360–E] 

RIN 2120–AA64 

Airworthiness Directives; General 

Electric Company Turboshaft Engines 

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 

General Electric Company (GE) CT7–8A 

model turboshaft engines. This 

proposed AD was prompted by the 

manufacturer revising the airworthiness 

limitations section (ALS) of the existing 

engine maintenance manual (EMM) to 

incorporate reduced life limits for 

certain stage 1 turbine aft cooling plates, 

stage 2 turbine forward cooling plates, 

turbine interstage seals, and stage 4 

turbine disks. This proposed AD would 

require revising the ALS of the existing 

EMM and the operator’s existing 

approved maintenance or inspection 

program, as applicable, to incorporate 

reduced life limits for these parts. 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 August 5, 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 General Electric 

Company, 1 Neumann Way, Cincinnati, 

OH 45215; phone: (513) 552–3272; 

email: aviation.fleetsupport@ae.ge.com; 

website: https://www.ge.com. You may 

view this service information at the 

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. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0690; 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. 

FOR FURTHER INFORMATION CONTACT: 

Sungmo Cho, Aviation Safety Engineer, 

ECO Branch, FAA, 1200 District 

Avenue, Burlington, MA 01803; phone: 

(781) 238–7241; email: Sungmo.D.Cho@

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–2022–0690; Project Identifier AD– 

2021–01360–E’’ 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 


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36782 Federal Register / Vol. 87, No. 118 / Tuesday, June 21, 2022 / Proposed Rules 

should be sent to Sungmo Cho, Aviation 

Safety Engineer, ECO Branch, FAA, 

1200 District Avenue, Burlington, MA 

01803. 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 was notified that the 

manufacturer revised the ALS of the 

existing EMM to incorporate reduced 

life limits for certain stage 1 turbine aft 

cooling plates, stage 2 turbine forward 

cooling plates, turbine interstage seals, 

and stage 4 turbine disks (life-limited 

parts) installed on CT7–8A model 

turboshaft engines. Additionally, the 

manufacturer published service 

information that introduced the reduced 

life limits. The life limits were reduced 

by the manufacturer as the result of an 

analysis of the life management models 

for these parts. This condition, if not 

addressed, could result in uncontained 

part release, damage to the engine, 

damage to the helicopter, and possible 

loss of control of the helicopter. 

FAA’s Determination 

The FAA is issuing this NPRM after 

determining that the unsafe condition 

described previously is likely to exist or 

develop on other products of the same 

type design. 

Related Service Information 

The FAA reviewed GE CT7–8 Service 

Bulletin 72–0062, Revision 01, dated 

December 22, 2021. This service 

information provides the reduced life 

limits for certain life-limited parts. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require 

revising the ALS of the applicable GE 

CT7–8 EMM and the operator’s existing 

approved maintenance or inspection 

program, as applicable, to incorporate 

reduced life limits for certain lifelimited parts. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 126 

engines installed on helicopters of U.S. 

registry. The FAA estimates the 

following costs to comply with this 

proposed AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Revise ALS of EMM and the operator’s existing approved 

maintenance or inspection program.

1 work-hour × $85 per hour = 

$85.

$0 $85 $10,710 

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: 

General Electric Company: Docket No. FAA– 

2022–0690; Project Identifier AD–2021– 

01360–E. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by August 5, 

2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to General Electric 

Company CT7–8A model turboshaft engines. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7240, Turbine Engine Combustion 

Section; 7250, Turbine Section. 

(e) Unsafe Condition 

This AD was prompted by the 

manufacturer revising the airworthiness 

limitations section (ALS) of the existing 

engine maintenance manual (EMM) to 

incorporate reduced life limits for certain 

stage 1 turbine aft cooling plates, stage 2 

turbine forward cooling plates, turbine 

interstage seals, and stage 4 turbine disks. 

The FAA is issuing this AD to prevent failure 

of the stage 1 turbine aft cooling plates, stage 

2 turbine forward cooling plates, turbine 

interstage seals, and stage 4 turbine disks. 

The unsafe condition, if not addressed, could 

result in uncontained part release, damage to 

the engine, damage to the helicopter, and 

possible loss of control of the helicopter. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) Within 90 days after the effective date 

of this AD, revise the ALS of the existing GE 

CT7–8 Turboshaft EMM and the operator’s 

existing approved maintenance or inspection 

program, as applicable, by incorporating the 

following reduced life limits: 

(i) For stage 1 turbine aft cooling plate, part 

number (P/N) 6064T09P02, change the life 


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Federal Register / Vol. 87, No. 118 / Tuesday, June 21, 2022 / Proposed Rules 36783 

limit cycles from 6,600 cycles since new 

(CSN) to 4,900 CSN; 

(ii) For stage 2 turbine forward cooling 

plate, P/N 4106T80P01, change the life limit 

cycles from 8,000 CSN to 7,200 CSN; 

(iii) For turbine interstage seal, P/N 

4111T86P03, change the life limit cycles 

from 29,200 CSN to 19,000 CSN; and 

(iv) For stage 4 turbine disk, P/N 

6068T32P04, change the life limit cycles 

from 24,100 CSN to 12,100 CSN. 

(2) After performing the actions required 

by paragraph (g)(1) of this AD, except as 

provided in paragraph (h) of this AD, no 

alternative life limits may be approved. 

(h) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, ECO 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 certification office, 

send it to the attention of the person 

identified in paragraph (i) of this AD and 

email to: ANE-AD-AMOC@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(i) Related Information 

For more information about this AD, 

contact Sungmo Cho, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 District 

Avenue, Burlington, MA 01803; phone: (781) 

238–7241; email: Sungmo.D.Cho@faa.gov. 

Issued on June 14, 2022. 

Christina Underwood, 

Acting Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–13154 Filed 6–17–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0684; Project 

Identifier MCAI–2021–01204–T] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

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 

certain Bombardier, Inc., Model BD– 

700–2A12 airplanes. This proposed AD 

was prompted by a report of a lateral 

offset observed on the head-up display 

(HUD) of several airplanes between the 

synthetic vision system (SVS) and 

actual runway due to mechanical 

misalignment of the HUD during 

manufacturing and assembly. This 

proposed AD would require revising the 

existing Airplane Flight Manual (AFM) 

to prohibit steep approach landing 

(SAL) and enhanced flight vision system 

(EFVS) operations. This proposed AD 

would also require calibrating the HUD. 

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 August 5, 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 Bombardier 

Business Aircraft Customer Response 

Center, 400 Coˆte-Vertu Road West, 

Dorval, Que ́bec H4S 1Y9, Canada; 

telephone 1–514–855–2999; email 

ac.yul@aero.bombardier.com; internet 

https://www.bombardier.com. You may 

view this service information 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. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0684; 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. 

FOR FURTHER INFORMATION CONTACT: 

Thomas Niczky, Aerospace Engineer, 

Airframe and Mechanical Systems 

Section, FAA, New York ACO Branch, 

1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; telephone 516– 

228–7347; email 9-avs-nyaco-cos@

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–2022–0684; Project Identifier 

MCAI–2021–01204–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 the 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 Thomas Niczky, 

Aerospace Engineer, Airframe and 

Mechanical Systems Section, FAA, New 

York ACO Branch, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 

11590; telephone 516–228–7347; email 

9-avs-nyaco-cos@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 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued TCCA AD CF– 

2021–36, dated November 1, 2021 

(TCCA AD CF–2021–36) (also referred 

to after this as the Mandatory 


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