It's fuel pump disabled, that engine flamed out
Another correction barit, the engine did not flame out. Its oil tank was punctured and continued to lose oil for the remainder of the flight, as did its hydraulic system, but the engine operated throughout. Additionally, the wiring for the fuel flow transmitter and generator were severed.
it must have been low-energy debris i.e. cowl pieces
A small piece of fan blade was found embedded in the forward section of the #2 engine inlet cowl, and two of the fan blades had leading edge damage. Boroscope inspection found three compressor blades had small nicks.