A321
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Confusion
Aircraft Equipment Problem Critical
Flight Crew Inflight Shutdown; Flight Crew Landed in Emergency Condition
Aircraft; Manuals
Near top of climb we had an intermittent ENG 1 OIL LO PR Amber Caution message which became a steady RED Warning message. I performed the ECAM (Electronic Centralized Aircraft Monitor) actions and follow up for the message which included shutting down the engine. The Captain [advised ATC]. We landed without further incident.I don't know what caused the indication but we had multiple indications which led us to believe it was not an erroneous indication and resulted ultimately in the engine shutdown per the ECAM.I believe it was a mechanical issue but I was unable to find a clear procedure for what to do for an intermittent (or even steady) ENG 1 OIL LO PR Amber Caution message with other supporting indications. Having a discussion in training about unusual/non standard situations would be helpful insight. ATC was very accommodating and we found it helpful to have ATC provide us a separate frequency to communicate with Tower and ARFF (Aircraft Rescue Fire Fighting) simultaneously. ARFF was very responsive and communication was excellent. It was a seamless process on final approach with our requests.
Air Carrier Flight Crew flying A-321 aircraft reported low engine oil pressure inflight.