Federal Register / Vol. 86, No. 162 / Wednesday, August 25, 2021 / Proposed Rules 47417 

Enterprise’s purchases of mortgages on 

multifamily residential housing 

affordable to low-income families shall 

be at least 415,000 dwelling units 

affordable to low-income families in 

multifamily residential housing 

financed by mortgages purchased by the 

Enterprise in each year for 2022, 2023, 

and 2024. 

(c) Multifamily very low-income 

housing subgoal. The benchmark level 

for each Enterprise’s purchases of 

mortgages on multifamily residential 

housing affordable to very low-income 

families shall be at least 88,000 dwelling 

units affordable to very low-income 

families in multifamily residential 

housing financed by mortgages 

purchased by the Enterprise in each 

year for 2022, 2023, and 2024. 

(d) Small multifamily low-income 

housing subgoal. The benchmark level 

for each Enterprise’s purchases of 

mortgages on small multifamily 

properties affordable to low-income 

families shall be at least 23,000 dwelling 

units affordable to low-income families 

in small multifamily properties financed 

by mortgages purchased by the 

Enterprise in each year for 2022, 2023, 

and 2024. 

§ 1282.15 [Amended] 

■ 5. Amend § 1282.15 by removing 

paragraph (i). 

§ 1282.16 [Amended] 

■ 6. Amend § 1282.16 by removing and 

reserving paragraph (c)(10). 

Sandra L. Thompson, 

Acting Director, Federal Housing Finance 

Agency. 

[FR Doc. 2021–18008 Filed 8–24–21; 8:45 am] 

BILLING CODE 8070–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0690; Project 

Identifier MCAI–2020–01495–E] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

Deutschland Ltd & Co KG (Type 

Certificate Previously Held by RollsRoyce plc) Turbofan 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 

certain Rolls-Royce Deutschland Ltd. & 

Co KG (RRD) Trent 1000 model turbofan 

engines. This proposed AD was 

prompted by the manufacturer revising 

the engine Time Limits Manual (TLM) 

life limits of certain critical rotating 

parts and direct accumulation counting 

data files. This proposed AD would 

require the operator to revise the 

airworthiness limitation section (ALS) 

of their existing approved aircraft 

maintenance program (AMP) by 

incorporating the revised tasks of the 

applicable TLM for each affected model 

turbofan engine, 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. 

DATES: The FAA must receive comments 

on this proposed AD by October 12, 

2021. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

https://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE, Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For material that is proposed for IBR 

in this AD, contact EASA, KonradAdenauer-Ufer 3, 50668 Cologne, 

Germany; phone: +49 221 8999 000; 

email: ADs@easa.europa.eu; website: 

https://www.easa.europa.eu. You may 

find this material on the EASA website 

at https://ad.easa.europa.eu. For RRD 

service information identified in this 

NPRM, contact Rolls-Royce plc, 

Corporate Communications, P.O. Box 

31, Derby, DE24 8BJ, United Kingdom; 

phone: +44 (0)1332 242424 fax: +44 

(0)1332 249936; website: https://

www.rolls-royce.com/contact-us.aspx. 

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 (781) 238–7759. The EASA material 

is also available at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0690. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0690; 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, the EASA AD, any comments 

received, and other information. The 

street address for Docket Operations is 

listed above. 

FOR FURTHER INFORMATION CONTACT: 

Kevin M. Clark, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 

District Avenue, Burlington, MA 01803; 

phone: (781) 238–7088; fax: (781) 238– 

7199; email: kevin.m.clark@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–2021–0690; Project Identifier 

MCAI–2020–01495–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 


khammond on DSKJM1Z7X2PROD with PROPOSALS
47418 Federal Register / Vol. 86, No. 162 / Wednesday, August 25, 2021 / Proposed Rules 

NPRM. Submissions containing CBI 

should be sent to Kevin M. Clark, 

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 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2020–0243, 

dated November 5, 2020 (EASA AD 

2020–0243), to correct an unsafe 

condition on RRD Trent 1000–AE3, 

Trent 1000–CE3, Trent 1000–D3, Trent 

1000–G3, Trent 1000–H3, Trent 1000– 

J3, Trent 1000–K3, Trent 1000–L3, Trent 

1000–M3, Trent 1000–N3, Trent 1000– 

P3, Trent 1000–Q3, and Trent 1000–R3 

model turbofan engines. 

This proposed AD was prompted by 

the manufacturer revising the engine 

TLM life limits of certain critical 

rotating parts and updating certain 

maintenance tasks. The FAA is 

proposing this AD to prevent the failure 

of critical rotating parts. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed EASA AD 2020– 

0243. EASA AD 2020–0243 specifies 

revising the approved AMP by 

incorporating the limitations, tasks, and 

associated thresholds and intervals 

described in the TLM. 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 

ADDRESSES. 

Other Related Service Information 

The FAA reviewed Chapter 05–10 of 

Rolls-Royce (RR) Trent 1000 TLM T– 

TRENT–10RRT, dated August 1, 2020. 

RR Trent 1000 TLM T–TRENT–10RRT, 

Chapter 05–10, identifies the reduced 

life limits of certain critical rotating 

parts. 

The FAA also reviewed Chapter 05– 

20 of RR Trent 1000 TLM T–TRENT– 

10RRT, dated August 1, 2020. RR Trent 

1000 TLM T–TRENT–10RRT, Chapter 

05–20, identifies the critical rotating 

part inspection thresholds and intervals. 

FAA’s Determination 

These engines have been approved by 

the aviation authority of another 

country and are approved for operation 

in the United States. Pursuant to the 

FAA’s bilateral agreement with the State 

of Design Authority, the FAA has been 

notified about the unsafe condition 

described in the EASA AD referenced in 

this proposed AD. 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. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require 

accomplishing the actions specified in 

EASA AD 2020–0243, 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 initially worked with 

Airbus and EASA to develop a process 

to use certain EASA ADs as the primary 

source of information for compliance 

with requirements for corresponding 

FAA ADs. The FAA has since 

coordinated with other manufacturers 

and civil aviation authorities (CAAs) to 

use this process. As a result, EASA AD 

2020–0243 will be incorporated by 

reference in the FAA final rule. This 

proposed AD would require compliance 

with EASA AD 2020–0243 in its 

entirety, 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 2020– 

0243 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 

2020–0243. Service information 

specified in EASA AD 2020–0243 that is 

required for compliance with it will be 

available at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–0690 after the FAA final 

rule is published. 

Differences Between This Proposed AD 

and the EASA AD 

This AD does not mandate the 

‘‘Maintenance Tasks and Replacement 

of Critical Parts’’ and ‘‘Corrective 

Action(s)’’ sections of EASA AD 2020– 

0243. Where EASA AD 2020–0243 

requires compliance from its effective 

date, this proposed AD would require 

using the effective date of this AD. 

Where EASA AD 2020–0243 requires 

revising the AMP within 12 months 

from its effective date, this proposed AD 

would require revising the existing AMP 

within 90 days after the effective date of 

this AD. This AD does not mandate 

compliance with the ‘‘Remarks’’ section 

of EASA AD 2020–0243. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 4 

engines installed on airplanes 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 the ALS of the AMP ............................ 1 work-hour × $85 per hour = $85 ................. $0 $85 $340 

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. 


khammond on DSKJM1Z7X2PROD with PROPOSALS
Federal Register / Vol. 86, No. 162 / Wednesday, August 25, 2021 / Proposed Rules 47419 

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: 

Rolls-Royce Deutschland Ltd & Co KG (Type 

Certificate previously held by RollsRoyce plc): Docket No. FAA–2021–0690; 

Project Identifier MCAI–2020–01495–E. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by October 12, 

2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Rolls-Royce 

Deutschland Ltd. & Co KG (Type Certificate 

previously held by Rolls-Royce plc) Trent 

1000–AE3, Trent 1000–CE3, Trent 1000–D3, 

Trent 1000–G3, Trent 1000–H3, Trent 1000– 

J3, Trent 1000–K3, Trent 1000–L3, Trent 

1000–M3, Trent 1000–N3, Trent 1000–P3, 

Trent 1000–Q3, and Trent 1000–R3 model 

turbofan engines. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7200, Engine (Turbine/Turboprop). 

(e) Unsafe Condition 

This AD was prompted by the 

manufacturer revising the engine Time 

Limits Manual life limits of certain critical 

rotating parts and direct accumulation 

counting data files. The FAA is issuing this 

AD to prevent the failure of critical rotating 

parts. The unsafe condition, if not addressed, 

could result in failure of one or more engines, 

loss of thrust control, and loss of the 

airplane. 

(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: Perform all required actions within the 

compliance times specified in, and in 

accordance with, European Union Aviation 

Safety Agency AD 2020–0243, dated 

November 5, 2020 (EASA AD 2020–0243). 

(h) Exceptions to EASA AD 2020–0243 

(1) The requirements specified in 

paragraphs (1) and (2) of EASA AD 2020– 

0243 are not required by this AD. 

(2) Where EASA AD 2020–0243 requires 

compliance from its effective date, this AD 

requires using the effective date of this AD. 

(3) Paragraph (3) of EASA AD 2020–0243 

specifies revising the approved aircraft 

maintenance program (AMP) within 12 

months after its effective date, but this AD 

requires revising the existing approved AMP 

within 90 days after the effective date of this 

AD. 

(4) This AD does not mandate compliance 

with the ‘‘Remarks’’ section of EASA AD 

2020–0243. 

(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)(2) of this AD. 

Information may be emailed to: ANE-ADAMOC@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 EASA AD 

2020–0243, contact EASA, KonradAdenauer-Ufer 3, 50668 Cologne, Germany; 

phone: +49 221 8999 000; email: ADs@

easa.europa.eu. You may find this 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, 1200 

District Avenue, Burlington, MA 01803. For 

information on the availability of this 

material at the FAA, call (781) 238–7759. 

This material may be found in the AD docket 

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

for and locating Docket No. FAA–2021–0690. 

(2) For more information about this AD, 

contact Kevin M. Clark, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 District 

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

238–7088; fax: (781) 238–7199; email: 

kevin.m.clark@faa.gov. 

(3) For Rolls-Royce Deutschland service 

information identified in this AD, contact 

Rolls-Royce plc, Corporate Communications, 

P.O. Box 31, Derby, DE24 8BJ, United 

Kingdom; phone: +44 (0)1332 242424 fax: 

+44 (0)1332 249936; website: https://

www.rolls-royce.com/contact-us.aspx. You 

may view this material 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 (781) 238–7759. 

Issued on August 17, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–17980 Filed 8–24–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0298; Project 

Identifier MCAI–2020–01549–T] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Canada Limited Partnership (Type 

Certificate Previously Held by C Series 

Aircraft Limited Partnership (CSALP); 

Bombardier, Inc.) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Proposed rule; withdrawal. 

SUMMARY: The FAA is withdrawing a 

notice of proposed rulemaking (NPRM) 

that proposed to adopt a new 

airworthiness directive (AD) that would 

have applied to certain Airbus Canada 

Limited Partnership Model BD–500– 

1A10 airplanes. The NPRM would have 

required an inspection of the lowpressure distribution supply duct to 

determine the part number, and 

replacement if necessary, as specified in 

a Transport Canada Civil Aviation 

(TCCA) AD. Since issuance of the 

NPRM, the FAA has determined that the 

affected operator has already addressed 

the unsafe condition by incorporating 

the proposed required actions on the 

affected airplanes. Accordingly, the 

NPRM is withdrawn. 

DATES: As of August 25, 2021, the 

proposed rule, which was published in 


khammond on DSKJM1Z7X2PROD with PROPOSALS