Airworthiness Directives; Rolls-Royce Deutschland Ltd. & Co. KG Engines

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Sept. 18, 2026. Document 2026-19172. Updated Nov. 5, 2026.

What it does

The FAA is adopting a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd. & Co. KG (RRD) Model RB211 Trent 768-60, 772-60, and 772B-60 engines. The FAA previously sent this AD as an emergency AD to all known U.S. owners and operators of these engines. This AD was prompted by reports of non-conformances leading to low oil pressure events on low life oil pumps. This AD requires de-pairing of engines on airplanes with two affected engines installed to ensure no more than one affected oil pump is installed on twin-engine airplanes. 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

1004 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Sept. 18, 2026 Final rule; request for comments. Airworthiness Directives; Rolls-Royce Deutschland Ltd. & Co. KG Engines
Sept. 17, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Pratt & Whitney Engines
Sept. 17, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus SAS Airplanes
Sept. 17, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes
Sept. 17, 2026 Final rule. Airworthiness Directives; Airbus SAS Airplanes
Sept. 17, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
Sept. 17, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
Sept. 17, 2026 Final rule. Airworthiness Directives; Bell Textron Canada Limited Helicopters

Since then:

What happens next and when

This AD is effective September 21, 2026. Emergency AD 2026-18- 51, issued on September 5, 2026, which contains the requirements of this amendment, was effective with actual notice.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-19172
Action	Final rule; request for comments.
Agencies	Transportation Department; Federal Aviation Administration
Published	Sept. 18, 2026
Effective date	Sept. 21, 2026
Comments close	Nov. 2, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-8814

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