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Final ruleTook effect June 12, 2026

Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register May 28, 2026. Document 2026-10594. Updated Nov. 10, 2026.

What it does

The FAA is superseding Airworthiness Directive (AD) 2020-24- 08, which applied to certain Rolls-Royce Deutschland Ltd & Co KG (RRD) Model RB211 Trent 768-60, 772-60, 772B-60, and 772C-60 engines. AD 2020-24-08 required replacement of high-pressure turbine (HPT) blades with parts eligible for installation before exceeding specified flight cycles since new. Since the FAA issued AD 2020-24-08, RRD published updated service material to revise the applicability for certain engines and introduce a terminating action for the repetitive replacements of the HPT blades. This AD requires removal from service of certain engines and replacement of the HPT blades before exceeding specified flight cycles since new. This AD also allows for a modification of the engine that would eliminate the need for the repetitive replacements of the HPT blades. The FAA is issuing this AD to address the unsafe condition on these products.

The Federal Aviation Administration's summary, as published in the Federal Register.

What changed in the regulation

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 39

Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).

Compared with

The Federal Aviation Administration has published 482 final rules in 2026 so far, compared with 518 in all of 2025.

Counted by the Tribune from Federal Register records since Jan. 1, 2025.

Before this

820 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Since then:

What happens next and when

This AD is effective June 12, 2026.

The agency's dates, word for word.

Document number2026-10594
ActionFinal rule; request for comments.
AgenciesTransportation Department; Federal Aviation Administration
PublishedMay 28, 2026
Effective dateJune 12, 2026
Comments closeJuly 13, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2026-4635

Source: the Federal Register (public domain). The document in the Federal Register