Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 132
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Inflight Shutdown; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Returned To Departure Airport; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
While operating Aircraft X; which was scheduled service from ZZZ to ZZZ1; we received a Master Warning for L ENG OIL PRESS. This prompted me to run the affiliated QRH procedure. After doing so we notified ATC and returned to ZZZ. It appears that the left engine lost oil during climbout. While climbing through FL330 for FL360; we received an aural warning and triple chime for L ENG OIL PRESS. This prompted us to run the L ENG OIL PRESS QRH. As we ran the QRH I gave control of the aircraft and radios to First Officer. The QRH asked if we met any 2 of the listed 3 indications for which we did. The conditions that we met were L ENG OIL PRESS warning message and affected engine oil pressure below limits. The QRH then directed us to complete the Engine Failure/ In-Flight Engine Shutdown checklist. After this occurred we communicated with ATC; Dispatch; the flight attendants; and the customers to return to ZZZ.
CRJ-900 Captain reported a L ENG OIL PRESS master warning on climb; resulting in an In Flight Shut Down and an Air Turn Back to precautionary landing.