Citationjet (C525/C526) - CJ I / II / III / IV
Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 240; Flight Crew Total 19000; Flight Crew Type 80
Troubleshooting
Aircraft Equipment Problem Critical
Flight Crew FLC complied w / Automation / Advisory; Flight Crew Returned To Departure Airport; Flight Crew Landed in Emergency Condition; General Maintenance Action
Aircraft; Weather
Climbing out passing through approx. 15;000 feet the crew noticed that the left engine oil pressure was low; just into the red on the low pressure side of the gauge. We had just turned on the engine anti-ice so we continued the climb to get out of possible icing conditions to be able to turn off the engine anti-ice system. We cleared the possible icing conditions and turned off the engine anti-ice. There was no change in the oil pressure indication. I notified ATC that we needed to return to the departure airport. The checklist for low oil pressure indication was implemented. After trouble shooting per the checklist we not able to change the low pressure indication. We then ran the precautionary shut down checklist per the guidance of the low pressure indication checklist. We then [advised] approach control and performed a normal single engine landing with no other issues.
We proceeded to shut down the left engine and [advised ATC of] our return. It was a normal single engine descent and landing with no further issues. I do believe we worked well together as a crew to address the abnormal situation and that we made good decisions involving the Aircraft and procedures as well as in returning to a larger more maintenance capable airport where we did receive great service. The controllers were helpful and willing to help more if the need arose. The emergency ground response was good too.
During climb a C525 left engine oil indicated low pressure. After running the checklist and troubleshooting with no effect; the engine was shut down and returned to the departure airport.