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Federal Register / Vol. 86, No. 179 / Monday, September 20, 2021 / Proposed Rules this proposed AD. The FAA is issuing this SNPRM after determining that the unsafe condition described previously is likely to exist or develop on other products of the same type design.
Certain changes described above expand the scope of the NPRM. As a result, it is necessary to reopen the comment period to provide additional opportunity for the public to comment on this SNPRM.
Related Service Information Under 1
CFR Part 51
The FAA reviewed EASA AD 2020
0241. EASA AD 20200241 requires accomplishment of the actions specified in RRDs updated TLM for affected engines as specified in Rolls-Royce Trent 1000 TLM T-Trent-10RRC, Chapters 0510 and 0520, Revision 20, dated August 1, 2020. 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.
Proposed AD Requirements in This SNPRM
This proposed AD would require accomplishing the actions specified in EASA AD 20200241, 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 FAAs 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, the FAA
proposes to incorporate EASA AD
20200241 in the FAA final rule. This proposed AD would require compliance with EASA AD 20200241 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 20200241 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 Actions and Compliance Times in EASA AD 20200241.

Service information specified in EASA
AD 20200241 that is required for compliance with it will be available at https www.regulations.gov by searching for and locating Docket No.
FAA20200364 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 Actions sections of EASA AD 2020
0241. Where EASA AD 20200241
requires compliance from its effective date, this proposed AD requires using the effective date of this AD. Where EASA AD 20200241 requires operators revising the approved AMP within 12
months from its effective date, this proposed AD requires revising the approved 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
0241.
Costs of Compliance The FAA estimates that this AD, if adopted as proposed, would affect 20
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
Revise the AMP

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.

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Cost per product
Parts cost $0

Cost on U.S.
operators
$85

$1,700

Regulatory Findings
List of Subjects in 14 CFR Part 39

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.

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

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

Authority: 49 U.S.C. 106g, 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 Rolls-Royce
E:FRFM20SEP1.SGM

20SEP1