Rolls-Royce SPEY 506-14
1 aircraft on the U.S. register carry a Rolls-Royce SPEY 506-14 engine, rated at about 10,410 pounds of thrust. The Gulfstream G-1159 Gulfstream II and III is the model most often fitted with it (1 aircraft).
The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Rolls-Royce SPEY 506-14. FAA spelling: SPEY 506-14.
Fitted to model families
Where they are owner's state
No data
Kind of aircraft
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Rolls-Royce SPEY 506-14 the component layer
The design is held under 1 type certificate (E2EU, held by Rolls-Royce Deutschland LTD & CO Kg). The FAA has issued 8 airworthiness directives (orders that owners must comply with) that name this engine series.
FAA orders 8 airworthiness directives · newest first
Certificates and bulletins
Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.
Connections how this engine series links to the rest of the register
- Gulfstream G-1159 Gulfstream II and III 1 with this engine series
- FAA orders naming the Rolls-Royce SPEY 506-14 8 airworthiness directives
These connections as data: /graph/engine/rolls-royce-spey-506-14.json · about the eFlight graph.
Aircraft newest certificates first · 1
Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.