Federal Register / Vol. 87, No. 107 / Friday, June 3, 2022 / Rules and Regulations 33621 

the conclusion of any informal hearing 

ordered by FHFA, provided that FHFA 

may extend this period upon notice to 

the requesting party. 

(iv) While FHFA’s decision is pending 

and until such time as FHFA approves 

the capital distribution at issue, the 

Enterprise may not make such capital 

distribution. 

(j) Post notice requirement. An 

Enterprise must notify FHFA within 15 

days of making a capital distribution if: 

(1) The capital distribution was 

approved pursuant to paragraph (i)(3) of 

this section; or 

(2) The dollar amount of the capital 

distribution will exceed the dollar 

amount of the Enterprise’s final planned 

capital distributions, as measured on an 

aggregate basis beginning in the fourth 

quarter of the planning horizon through 

the quarter at issue. 

§ § 1240.501–1240.502 [Reserved] 

Sandra L. Thompson, 

Acting Director, Federal Housing Finance 

Agency. 

[FR Doc. 2022–11928 Filed 6–2–22; 8:45 am] 

BILLING CODE 8070–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0094; Project 

Identifier AD–2021–01251–E; Amendment 

39–22052; AD 2022–11–02] 

RIN 2120–AA64 

Airworthiness Directives; CFM 

International, S.A. Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all CFM 

International, S.A. (CFM) LEAP–1B21, 

LEAP–1B23, LEAP–1B25, LEAP–1B27, 

LEAP–1B28, LEAP–1B28B1, LEAP– 

1B28B2, LEAP–1B28B2C, LEAP– 

1B28B3, LEAP–1B28BBJ1, and LEAP– 

1B28BBJ2 model turbofan engines. This 

AD was prompted by the detection of 

melt-related freckles in the billet, which 

may reduce the life of certain 

compressor rotor stages 6–10 spools, 

high pressure turbine (HPT) rotor mid 

seals, HPT rotor stage 2 disks, low 

pressure turbine (LPT) stage 2 disks, and 

LPT stage 3 disks. This AD requires 

revising the airworthiness limitations 

section (ALS) of the applicable CFM 

LEAP–1B Engine Shop Manual (ESM), 

and the operator’s existing approved 

maintenance or inspection program, as 

applicable, to incorporate reduced life 

limits for these parts. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective July 8, 2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of July 8, 2022. 

ADDRESSES: For service information 

identified in this final rule, contact CFM 

International, S.A., Aviation Operations 

Center, 1 Neumann Way, M/D Room 

285, Cincinnati, OH 45125; phone: (877) 

432–3272; email: fleetsupport@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. It is also available 

at https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0094. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0094; 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, 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: 

Mehdi Lamnyi, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 

District Avenue, Burlington, MA 01803; 

phone: (781) 238–7743; email: 

Mehdi.Lamnyi@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 all CFM LEAP–1B21, LEAP– 

1B23, LEAP–1B25, LEAP–1B27, LEAP– 

1B28, LEAP–1B28B1, LEAP–1B28B2, 

LEAP–1B28B2C, LEAP–1B28B3, LEAP– 

1B28BBJ1, and LEAP–1B28BBJ2 model 

turbofan engines. The NPRM published 

in the Federal Register on February 15, 

2022 (87 FR 8434). The NPRM was 

prompted by the engine manufacturer 

notifying the FAA of the detection of 

melt-related freckles in the billet, which 

may reduce the life of certain 

compressor rotor stages 6–10 spools, 

HPT rotor mid seals, HPT rotor stage 2 

disks, LPT stage 2 disks, and LPT stage 

3 disks (life-limited parts (LLPs)). The 

manufacturer’s investigation determined 

that, as a result of such freckles forming 

in the billet, these LLPs may have 

undetected subsurface anomalies that 

developed during the manufacturing 

process, resulting in reduced material 

properties and a lower fatigue life 

capability. Reduced material properties 

may cause premature LLP fracture, 

which could result in uncontained 

debris release. As a result of its 

investigation, the manufacturer 

determined the need to reduce the life 

limits of these LLPs. To reflect these 

reduced life limits, the manufacturer 

revised the CFM ALS, Chapter 05 of 

LEAP–1B ESM. Additionally, the 

manufacturer published service 

information that specifies procedures 

for the removal and replacement of 

these LLPs before reaching their new 

life limits. In the NPRM, the FAA 

proposed to require revising the ALS of 

the CFM LEAP–1B ESM, as applicable 

to each affected engine model, and the 

operator’s existing approved 

maintenance or inspection program, as 

applicable, to incorporate reduced life 

limits for certain LLPs. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from 

four commenters. The commenters were 

Air Line Pilots Association, 

International (ALPA), American 

Airlines (AA), CFM, and United 

Airlines (UAL). The following presents 

the comments received on the NPRM 

and the FAA’s response to each 

comment. 

Request To Update Service Information 

Revisions 

CFM requested that the FAA update 

the service information issue numbers 

and dates to reflect the current 

revisions. 

The FAA agrees and updated the 

service information issue numbers and 

dates throughout this AD. The FAA also 

added a Credit For Previous Actions 

paragraph to this AD, allowing operators 

to take credit for required actions if 

accomplished prior to the effective date 

of this AD using prior versions of the 

service information. This change 

imposes no additional burden on 

operators who are required to comply 

with this AD. 


khammond on DSKJM1Z7X2PROD with RULES
33622 Federal Register / Vol. 87, No. 107 / Friday, June 3, 2022 / Rules and Regulations 

Request To Include Future Revisions to 

Service Information 

AA and UAL requested that the FAA 

revise the required actions of the AD to 

allow the use of future approved 

revisions of the specified service 

information. AA added that when the 

FAA publishes an AD that incorporates 

an EASA AD by reference, the EASA AD 

includes language stating the use of later 

revisions is acceptable for compliance. 

AA suggested that since the FAA 

already approves future approved 

revisions of documents that are 

incorporated by reference in a foreign 

AD, it is reasonable and logical that this 

FAA AD allows future approved 

revisions. 

The FAA disagrees with revising the 

required actions of this AD to allow for 

the use of future approved revisions of 

the service information. Future 

revisions of the service information 

have not yet been published by the 

manufacturer or reviewed by the FAA. 

In the case of a foreign AD incorporated 

by reference in an FAA AD, the service 

information referenced by EASA is a 

second-tier document. A request for an 

alternative method of compliance can be 

submitted to the FAA if future revisions 

of the service information referenced in 

paragraph (g) of this AD are published. 

Additionally, if future revisions of the 

service information are published by the 

manufacturer and approved by the FAA, 

the FAA may consider further 

rulemaking. 

Request To Clarify the Intent of the AD 

AA requested the FAA clarify if the 

AD requires the incorporation of the 

LLP life limits in CFM Service Bulletin 

(SB) LEAP–1B–72–00–0342–01A– 

930A–D, Issue 002–00, dated July 26, 

2021 (CFM SB LEAP–1B–72–00–0342– 

01A–930A–D), identified in Other 

Related Service Information, or if the 

AD requires revisions to the ESM. 

The FAA notes that this AD does not 

require any actions using CFM SB 

LEAP–1B–72–00–0342–01A–930A–D. 

This AD requires only revising the ALS 

of the applicable CFM LEAP–1B ESM, 

and the operator’s existing approved 

maintenance or inspection program, as 

applicable, to incorporate reduced life 

limits for these parts using CFM High 

Pressure Compressor Rotor Life Limits 

LEAP–1B–05–11–02–01A–0B1B–C, 

Issue 010–00, dated March 17, 2022, 

CFM High Pressure Turbine Rotor Life 

Limits LEAP–1B–05–11–03–01A–0B1B– 

C, Issue 007–00, dated March 17, 2022, 

and CFM Low Pressure Turbine Rotor 

Life Limits LEAP–1B–05–11–04–01A– 

0B1B–C, Issue 008–00, dated February 

16, 2022. The revised life limits include 

references to CFM SB LEAP–1B–72–00– 

0342–01A–930A–D for lists of specific 

part serial numbers. 

Support for the AD 

ALPA expressed support for the AD 

as written. 

Conclusion 

The FAA reviewed the relevant data, 

considered any comments received, 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, and any other changes 

described previously, 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 the following 

service information: 

• CFM High Pressure Compressor 

Rotor Life Limits LEAP–1B–05–11–02– 

01A–0B1B–C, Issue 010–00, dated 

March 17, 2022 (CFM LEAP–1B–05–11– 

02–01A–0B1B–C). CFM LEAP–1B–05– 

11–02–01A–0B1B–C provides the new 

life limits for the high pressure 

compressor rotor. 

• CFM High Pressure Turbine Rotor 

Life Limits LEAP–1B–05–11–03–01A– 

0B1B–C, Issue 007–00, dated March 17, 

2022 (CFM LEAP–1B–05–11–03–01A– 

0B1B–C). CFM LEAP–1B–05–11–03– 

01A–0B1B–C provides the new limits 

for the high pressure turbine rotor. 

• CFM Low Pressure Turbine Rotor 

Life Limits LEAP–1B–05–11–04–01A– 

0B1B–C, Issue 008–00, dated February 

16, 2022 (CFM LEAP–1B–05–11–04– 

01A–0B1B–C). CFM LEAP–1B–05–11– 

04–01A–0B1B–C provides the new life 

limits for the low pressure turbine rotor. 

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. 

Other Related Service Information 

The FAA reviewed CFM SB LEAP– 

1B–72–00–0342–01A–930A–D. CFM SB 

LEAP–1B–72–00–0342–01A–930A–D 

specifies procedures for removing and 

replacing the LLPs, and provides new 

life limits for certain serial numbers of 

the LLPs. 

Costs of Compliance 

The FAA estimates that this AD 

affects 378 engines installed on 

airplanes of U.S. registry. 

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 

Revise ALS of the ESM and the operator’s existing 

approved maintenance or inspection program.

1 work-hour × $85 per hour = $85 .. $0 $85 $32,130 

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 that this AD: 


khammond on DSKJM1Z7X2PROD with RULES
Federal Register / Vol. 87, No. 107 / Friday, June 3, 2022 / Rules and Regulations 33623 

(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: 

2022–11–02 CFM International, S.A.: 

Amendment 39–22052; Docket No. 

FAA–2022–0094; Project Identifier AD– 

2021–01251–E. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective July 8, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to CFM International, S.A. 

(CFM) LEAP–1B21, LEAP–1B23, LEAP– 

1B25, LEAP–1B27, LEAP–1B28, LEAP– 

1B28B1, LEAP–1B28B2, LEAP–1B28B2C, 

LEAP–1B28B3, LEAP–1B28BBJ1, and LEAP– 

1B28BBJ2 model turbofan engines. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7230, Turbine Engine Compressor 

Section, and JASC Code 7250, Turbine 

Section. 

(e) Unsafe Condition 

This AD was prompted by the detection of 

melt-related freckles in the billet, which may 

reduce the life of certain compressor rotor 

stages 6–10 spools, high pressure turbine 

(HPT) rotor mid seals, HPT rotor stage 2 

disks, low pressure turbine (LPT) stage 2 

disks, and LPT stage 3 disks. The FAA is 

issuing this AD to prevent the failure of the 

high pressure compressor, HPT rotor, and 

LPT rotor. The unsafe condition, if not 

addressed, could result in release of 

uncontained debris, damage to the engine, 

and damage to the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

Within 60 days after the effective date of 

this AD, revise the airworthiness limitations 

section (ALS) of the applicable CFM LEAP– 

1B Engine Shop Manual (ESM) and the 

operator’s existing approved maintenance or 

inspection program, as applicable, by 

incorporating the following service 

information: 

(1) CFM High Pressure Compressor Rotor 

Life Limits LEAP–1B–05–11–02–01A–0B1B– 

C, Issue 010–00, dated March 17, 2022; 

(2) CFM High Pressure Turbine Rotor Life 

Limits LEAP–1B–05–11–03–01A–0B1B–C, 

Issue 007–00, dated March 17, 2022; and 

(3) CFM Low Pressure Turbine Rotor Life 

Limits LEAP–1B–05–11–04–01A–0B1B–C, 

Issue 008–00, dated February 16, 2022. 

(h) Credit for Previous Actions 

(1) You may take credit for the action 

required by paragraph (g)(1) of this AD if the 

following service information was 

incorporated into the ALS of the applicable 

ESM and the operator’s existing approved 

maintenance or inspection program, as 

applicable, prior to the effective date of this 

AD: CFM High Pressure Compressor Rotor 

Life Limits LEAP–1B–05–11–02–01A–0B1B– 

C, Issue 009–00, dated July 26, 2021. 

(2) You may take credit for the action 

required by paragraph (g)(2) of this AD if the 

following service information was 

incorporated into the ALS of the applicable 

ESM and the operator’s existing approved 

maintenance or inspection program, as 

applicable, prior to the effective date of this 

AD: CFM High Pressure Turbine Rotor Life 

Limits LEAP–1B–05–11–03–01A–0B1B–C, 

Issue 006–00, dated July 26, 2021. 

(3) You may take credit for the action 

required by paragraph (g)(3) of this AD if the 

following service information was 

incorporated into the ALS of the applicable 

ESM and the operator’s existing approved 

maintenance or inspection program, as 

applicable, prior to the effective date of this 

AD: CFM Low Pressure Turbine Rotor Life 

Limits LEAP–1B–05–11–04–01A–0B1B–C, 

Issue 006–00, dated June 1, 2021, or Issue 

007, dated February 15, 2022. 

(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) 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 

For more information about this AD, 

contact Mehdi Lamnyi, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 District 

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

238–7743; email: Mehdi.Lamnyi@faa.gov. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

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

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) CFM High Pressure Compressor Rotor 

Life Limits LEAP–1B–05–11–02–01A–0B1B– 

C, Issue 010–00, dated March 17, 2022. 

(ii) CFM High Pressure Turbine Rotor Life 

Limits LEAP–1B–05–11–03–01A–0B1B–C, 

Issue 007–00, dated March 17, 2022. 

(iii) CFM Low Pressure Turbine Rotor Life 

Limits LEAP–1B–05–11–04–01A–0B1B–C, 

Issue 008–00, dated February 16, 2022. 

(3) For service information identified in 

this AD, contact CFM International, S.A., 

Aviation Operations Center, 1 Neumann 

Way, M/D Room 285, Cincinnati, OH 45125; 

phone: (877) 432–3272; email: fleetsupport@

ge.com. 

(4) You may view this service information 

at FAA, Airworthiness Products Section, 

Operational Safety Branch, 1200 District 

Avenue, Burlington, MA 01803. For 

information on the availability of this 

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

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

email: fr.inspection@nara.gov, or go to: 

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

ibr-locations.html. 

Issued on May 13, 2022. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2022–11926 Filed 6–2–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0597; Project 

Identifier MCAI–2022–00638–T; Amendment 

39–22074; AD 2022–11–51] 

RIN 2120–AA64 

Airworthiness Directives; Embraer S.A. 

(Type Certificate Previously Held by 

Yabora ̃ Indu ́ stria Aerona ́utica S.A.; 

Embraer S.A.) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 


khammond on DSKJM1Z7X2PROD with RULES