AD 2026-18-51: Rolls-Royce Deutschland Ltd. & Co. KG Engines

What the FAA requires

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.

Read the full directive on the Federal Register →

Applicability

This AD applies to all Rolls-Royce Deutschland Ltd. & Co. KG Model RB211 Trent 768-60, 772-60, and 772B-60 engines. (d) Subject Joint Aircraft System Component (JASC) Code 7261, Turbine Engine Oil System. (e) Unsafe Condition This AD was prompted by reports of non-conformances leading to low oil pressure events on low life oil pumps due to a failure mode affecting the oil pump input coupling shear neck. The FAA is issuing this AD to address a failure mode affecting the oil pump input coupling shear neck. The unsafe condition, if not addressed, could lead to a dual in-flight shutdown on airplanes equipped with two affected engines, resulting in reduced control of the airplane. (f) Compliance

Part numbers this directive names

This directive does not name specific part numbers in its text; it applies by aircraft model. See the applicability above and the manufacturer's service bulletin it references.