AD 2026-18-52: 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 875-17, 877-17, 884-17, 884B-17, 892-17, 892B-17, and 895-17 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 875-17, 877-17, 884-17, 884B-17, 892-17, 892B-17, and 895-17 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

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.