42066 Federal Register / Vol. 87, No. 134 / Thursday, July 14, 2022 / Rules and Regulations 

Archives and Records Administration 

(NARA). For information on the availability 

of this material at NARA, email 

fr.inspection@nara.gov, or go to: https://

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

Issued on June 22, 2022. 

Ross Landes, 

Deputy Director for Regulatory Operations, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2022–14969 Filed 7–13–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0385; Project 

Identifier MCAI–2021–00786–E; Amendment 

39–22117; AD 2022–14–12] 

RIN 2120–AA64 

Airworthiness Directives; GE Aviation 

Czech s.r.o. (Type Certificate 

Previously Held by WALTER Engines 

a.s., Walter a.s., and MOTORLET a.s.) 

Turboprop Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

GE Aviation Czech s.r.o. (GEAC) 

M601D–11, M601E–11, M601E–11A, 

M601E–11AS, M601E–11S, and M601F 

model turboprop engines. This AD was 

prompted by the absence of life limits 

for propeller shaft part number (P/N) 

M601–6081.6 in the airworthiness 

limitations section (ALS) of the 

applicable GEAC M601 Engine Shop 

Manual. This AD was also prompted by 

a report that operators may not have 

been provided with enough data to 

determine the accumulated life of 

certain propeller shafts. For M601F 

model turboprop engines, this AD 

requires removal and replacement of the 

propeller shaft before the propeller shaft 

accumulates 12,000 flight hours (FHs) 

since first installation on an engine, or 

before accumulating 350 FHs after the 

effective date of this AD, whichever 

occurs later, with a part eligible for 

installation. For M601D–11, M601E–11, 

M601E–11A, M601E–11AS, and 

M601E–11S model turboprop engines, 

this AD requires calculation of the 

accumulated life of the propeller shaft 

and, depending on the number of 

accumulated FHs removal and 

replacement of the propeller shaft with 

a part eligible for installation. The FAA 

is issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective August 18, 

2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of August 18, 2022. 

ADDRESSES: For service information 

identified in this final rule, contact GE 

Aviation Czech s.r.o., Beranovy ́ch 65, 

199 02 Praha 9, Letnˇ any, Czech 

Republic; phone: +420 222 538 111. 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. It is also available at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2022– 

0385. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0385; 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 

final rule, the mandatory continuing 

airworthiness information (MCAI), any 

comments received, and other 

information. The address for Docket 

Operations is U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Barbara Caufield, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 

District Avenue, Burlington, MA 01803; 

phone: (781) 238–7146; email: 

barbara.caufield@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain GEAC M601D–11, 

M601E–11, M601E–11A, M601E–11AS, 

M601E–11S, and M601F model 

turboprop engines. The NPRM 

published in the Federal Register on 

April 01, 2022 (87 FR 19029). The 

NPRM was prompted by the absence of 

life limits for propeller shaft P/N M601– 

6081.6 in the ALS of the applicable 

GEAC M601 Engine Shop Manual. The 

NPRM was also prompted by a report 

that operators may not have been 

provided with enough data to determine 

the accumulated life of certain propeller 

shafts. For M601F model turboprop 

engines, the NPRM proposed to require 

removal and replacement of the 

propeller shaft with a part eligible for 

installation before the propeller shaft 

accumulates 12,000 FHs since first 

installation on an engine, or before 

accumulating 350 FHs after the effective 

date of this AD, whichever occurs later. 

For M601D–11, M601E–11, M601E– 

11A, M601E–11AS, and M601E–11S 

model turboprop engines, the NPRM 

proposed to require calculation of the 

accumulated life of the propeller shaft 

and, depending on the number of 

accumulated FHs, removal and 

replacement of the propeller shaft with 

a part eligible for installation. The FAA 

is issuing this AD to address the unsafe 

condition on these products. 

The European Union Aviation Safety 

Agency (EASA), which is the Technical 

Agent for the Member States of the 

European Union, has issued EASA AD 

2021–0154, dated July 1, 2021 (referred 

to after this as ‘‘the MCAI’’), to address 

the unsafe condition on these products. 

The MCAI states: 

It has been determined that the life limit 

for the propeller shaft P/N M601–6081.6 is 

not published in the applicable ALS for 

M601 engines. In addition, it has also been 

reported that some data, which can be used 

to determine the accumulated life of certain 

propeller shafts, may have not been provided 

to operators, so the propeller shaft life limit 

may not have been implemented correctly. 

These conditions, if not corrected, may 

lead to failure of a propeller shaft, possibly 

resulting in detachment of the propeller and 

consequent damage to the engine and/or the 

aircraft, and reduced control of the 

aeroplane. 

To address this potential unsafe condition, 

GEAC issued the original issue of the ASB, 

providing applicable instructions, and EASA 

issued AD 2021–0052 to require 

implementation of the applicable life limit 

and replacing each propeller shaft with a 

serviceable propeller shaft. 

Since that [EASA] AD was issued, 

additional data, which can be used to 

determine the accumulated life of certain 

propeller shafts, and to support an extended 

compliance time for Group 1 engines, has 

been made available; GEAC revised 

accordingly the ASB (now at revision 02). 

For the reasons described above, this 

[EASA] AD partially retains the requirements 

of EASA AD 2021–0052, which is 

superseded, introducing updated affected 

population and different compliance times. 

You may obtain further information 

by examining the MCAI in the AD 

docket at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2022–0385. 


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Federal Register / Vol. 87, No. 134 / Thursday, July 14, 2022 / Rules and Regulations 42067 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the costs. 

Conclusion 

The FAA reviewed the relevant data 

and determined that air safety requires 

adopting this AD as proposed. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on these 

products. Except for minor editorial 

changes, this AD is adopted as proposed 

in the NPRM. None of the changes will 

increase the economic burden on any 

operator. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed GE Aviation Czech 

Alert Service Bulletin (ASB) ASB– 

M601F–72–10–00–0056 [02], ASB– 

M601D–72–10–00–0072 [02], ASB– 

M601E–72–10–00–0103 [02], and ASB– 

M601Z–72–10–00–0056 [02] (single 

document; formatted as service bulletin 

identifier [revision number]), dated May 

31, 2021. This service information 

specifies procedures for calculating the 

accumulated life of certain propeller 

shafts and also specifies procedures for 

replacing certain propeller shafts. This 

service information is reasonably 

available because the interested parties 

have access to it through their normal 

course of business or by the means 

identified in ADDRESSES. 

Costs of Compliance 

The FAA estimates that this AD 

affects 14 engines installed on airplanes 

of U.S. registry. The FAA estimates that 

7 M601D–11 and 7 M601E–11 model 

turboprop engines installed on airplanes 

of U.S. registry require calculation of the 

time since new (TSN) of the propeller 

shaft and removal and replacement of 

the propeller shaft. The FAA estimates 

that zero M601E–11A, M601E–11AS, 

M601E–11S, and M601F model 

turboprop engines installed on airplanes 

of U.S. registry require replacement of 

the propeller shaft. 

The FAA estimates the following 

costs to comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Calculate the total TSN of the propeller shaft 1 work-hours × $85 per hour = $85 ............... $0 $85 $1,190 

Remove and replace the propeller shaft ........ 105 work-hours × $85 per hour = $8,925 ...... 17,827 26,752 374,528 

The FAA has included all known 

costs in its cost estimate. According to 

the manufacturer, however, some of the 

costs of this AD may be covered under 

warranty, thereby reducing the cost 

impact on affected operators. 

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 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will 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 AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, and 

(3) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 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: 

2022–14–12 GE Aviation Czech s.r.o. (Type 

Certificate previously held by WALTER 

Engines a.s., Walter a.s., and 

MOTORLET a.s.): Docket No. FAA– 

2022–0385; Project Identifier MCAI– 

2021–00786–E. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective August 18, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to: 

(1) GE Aviation Czech s.r.o. (GEAC) M601F 

model turboprop engines with an engine 

serial number (ESN) listed in Attachment 1, 

List of Affected Engines—Group 1, of GE 

Aviation Czech Alert Service Bulletin (ASB) 

ASB–M601F–72–10–00–0056 [02], ASB– 

M601D–72–10–00–0072 [02], ASB–M601E– 

72–10–00–0103 [02], and ASB–M601Z–72– 

10–00–0056 [02] (single document; formatted 

as service bulletin identifier [revision 

number]), dated May 31, 2021 (the ASB); 

(2) M601E–11 and M601E–11A model 

turboprop engines with an ESN listed in 

Attachment 2, List of Affected Parts—Group 

2, of the ASB; and 

(3) M601D–11, M601E–11AS, and M601E– 

11S model turboprop engines with propeller 

shaft part number (P/N) M601–6081.2 or P/ 

N M601–6081.4. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7210, Turbine Engine Reduction Gear. 

(e) Unsafe Condition 

This AD was prompted by the absence of 

life limits for propeller shaft P/N M601– 

6081.6 in the airworthiness limitations 

section of the applicable GEAC M601 Engine 

Shop Manual. This AD was also prompted by 


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42068 Federal Register / Vol. 87, No. 134 / Thursday, July 14, 2022 / Rules and Regulations 

a report that operators may not have been 

provided with enough data to determine the 

accumulated life of certain propeller shafts. 

The FAA is issuing this AD to prevent the 

failure of the propeller shaft. The unsafe 

condition, if not addressed, could result in 

damage to the engine, damage to the airplane, 

and reduced control of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) For affected M601F model turboprop 

engines, before the propeller shaft 

accumulates 12,000 flight hours (FHs) since 

first installation on an engine, or before 

accumulating 350 FHs after the effective date 

of this AD, whichever occurs later, remove 

the propeller shaft and replace with a part 

eligible for installation. 

(2) For affected M601D–11, M601E–11, 

M601E–11A, M601E–11AS, and M601E–11S 

model turboprop engines: 

(i) Within 100 FHs after the effective date 

of this AD, calculate the total time since new 

of the propeller shaft in accordance with the 

Accomplishment Instructions, section 2.2 

Group 2 Engines, paragraph 1., of the ASB. 

(ii) Remove the propeller shaft prior to 

reaching its applicable life limit and replace 

with a part eligible for installation in 

accordance with the Accomplishment 

Instructions, section 2.2 Group 2 Engines, 

paragraph 2., of the ASB. 

(h) Definitions 

(1) For the purpose of this AD, a ‘‘part 

eligible for installation’’ on M601F, M601E– 

11, and M601E–11A model turboprop 

engines is a propeller shaft identified in the 

Configuration Description, paragraph 1.5, 

Table 1, of the ASB, as applicable to the 

engine model, with a calculated life that has 

not exceeded the applicable life limit. 

(2) For the purpose of this AD, a ‘‘part 

eligible for installation’’ on M601D–11 model 

turboprop engines is a propeller shaft with P/ 

N M601–6081.2, P/N M601–6081.4, or P/N 

M601–6081.5, with a calculated life that has 

not exceeded the applicable life limit. 

(3) For the purpose of this AD, a ‘‘part 

eligible for installation’’ on M601E–11AS and 

M601E–11S model turboprop engines is a 

propeller shaft with P/N M601–6081.2, P/N 

M601–6081.5, or P/N M601–6081.6, with a 

calculated life that has not exceeded the 

applicable life limit. 

(i) 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 (j)(1) 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. 

(j) Related Information 

(1) For more information about this AD, 

contact Barbara Caufield, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 District 

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

238–7146; email: barbara.caufield@faa.gov. 

(2) Refer to European Union Aviation 

Safety Agency (EASA) AD 2021–0154, dated 

July 1, 2021, for more information. You may 

examine the EASA AD in the AD docket at 

https://www.regulations.gov by searching for 

and locating Docket No. FAA–2022–0385. 

(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. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) GE Aviation Czech Alert Service 

Bulletin (ASB) ASB–M601F–72–10–00–0056 

[02], ASB–M601D–72–10–00–0072 [02], 

ASB–M601E–72–10–00–0103 [02], and ASB– 

M601Z–72–10–00–0056 [02] (single 

document; formatted as service bulletin 

identifier [revision number]), dated May 31, 

2021. 

(ii) [Reserved] 

(3) For GE Aviation Czech service 

information identified in this AD, contact GE 

Aviation Czech s.r.o., Beranovy ́ch 65, 199 02 

Praha 9, Letnˇ any, Czech Republic; phone: 

+420 222 538 111. 

(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: 

https://www.archives.gov/federal-register/cfr/ 

ibr-locations.html. 

Issued on June 29, 2022. 

Christina Underwood, 

Acting Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–15025 Filed 7–13–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0507; Project 

Identifier MCAI–2021–01372–T; Amendment 

39–22114; AD 2022–14–09] 

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: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Saab AB, Support and Services Model 

340A (SAAB/SF340A) and SAAB 340B 

airplanes. This AD was prompted by a 

report that there is no evidence that 

post-machining stress relief or deembrittlement post-cadmium plating 

treatments were performed on certain 

torque arm center pins. This AD 

requires replacing each affected torque 

arm center pin on the main landing gear 

(MLG), as specified in a European 

Union Aviation Safety Agency (EASA) 

AD, which is incorporated by reference. 

This AD also prohibits the installation 

of affected parts. The FAA is issuing 

this AD to address the unsafe condition 

on these products. 

DATES: This AD is effective August 18, 

2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of August 18, 2022. 

ADDRESSES: For material incorporated 

by reference (IBR) in this AD, 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 IBR material 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. 

It is also available in the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0507. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0507; or in person at Docket 


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