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Federal Register / Vol. 86, No. 153 / Thursday, August 12, 2021 / Proposed Rules
The FAA estimates the following costs to comply with this proposed AD:

ESTIMATED COSTS
Action
Labor cost
Revise the ALS

1 work-hour $85 per hour = $85

Authority for This Rulemaking Title 49 of the United States Code specifies the FAAs 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 Agencys 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.

1. The authority citation for part 39
continues to read as follows:

Authority: 49 U.S.C. 106g, 40113, 44701.
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. FAA20210655;
Project Identifier MCAI202001497E.
a Comments Due Date The FAA must receive comments on this airworthiness directive AD by September 27, 2021.
b Affected ADs None.
c Applicability This AD applies to Rolls-Royce Deutschland Ltd. & Co KG RRD Type Certificate previously held by Rolls-Royce plc Trent 700072 and Trent 700072C
model turbofan engines.
d Subject Joint Aircraft Service Component JASC
Code 7200, Engine Turbine/Turboprop.
e Unsafe Condition This AD was prompted by the manufacturer revising the engine Time Limits Manual TLM life limits of certain critical rotating parts and updating certain maintenance tasks. The FAA is issuing this AD 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.

The Proposed Amendment
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 20200244, dated November 5, 2020 EASA AD 20200244.

Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

h Exceptions to EASA AD 20200244
1 The requirements specified in paragraphs 1 and 2 of EASA AD 2020
0244 are not required by this AD.

List of Subjects in 14 CFR Part 39
lotter on DSK11XQN23PROD with PROPOSALS1

PART 39AIRWORTHINESS
DIRECTIVES

39.13

Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

VerDate Sep<11>2014

22:35 Aug 11, 2021

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PO 00000

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Fmt 4702

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Cost per product
Parts cost $0

$85

Cost on U.S.
operators $850

2 Where EASA AD 20200244 requires compliance from its effective date, this AD
requires using the effective date of this AD.
3 Paragraph 3 of EASA AD 20200244
specifies revising the approved AMP within 12 months after its effective date, but this AD
requires revising the 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
20200244.
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 ECO Branch, send it to the attention of the person identified in paragraph j2 of this AD. Information may be emailed to: ANEADAMOC@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
20200244, 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 2387759.
This material may be found in the AD docket at https www.regulations.gov by searching for and locating Docket No. FAA20210655.
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
2387088; fax: 781 2387199; email:
kevin.m.clark@faa.gov.
3 For RRD service information identified in this AD, contact Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; phone:
+44 01332 242424 fax: +44 01332 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 2387759.

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