Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 240; Flight Crew Total 18000; Flight Crew Type 3000
Aircraft Equipment Problem Critical
General Maintenance Action
Aircraft
After landing taxi in to gate noticed oil pressure gauge right engine read 40 PSI and decreasing; status message; 'engine oil pressure' generator for right engine then shed; 'engine generator' EICAS appeared; 'right engine shutdown' EICAS appeared. With engine fuel control switch was in the run position; positive fuel flow to the engine; approximately 4;000 LBS of fuel in the right main tank. Right engine EGT started to rise from approximately 450C; to 507C and rising when I commanded the fuel control switch right engine to stop. Parked the aircraft; did shutdown checklist; called Maintenance; made appropriate write up. [I] stayed to debrief Maintenance on my observations and actions. On leaving the aircraft I went down to see the right engine and noticed an 8-10 [inch] diameter puddle of fluid on the ramp and what appeared to be oil dripping from the cowling.
Upon taxing into gate after landing; right engine oil pressure and right engine bleed off light came on EICAS. Oil pressure continued to drop but engine did have N1; EGT; N2 and FF positive indications. This continued for about 30 seconds and we shutdown the right engine fuel control switch.
Upon taxi into the gate Air Carrier flight crew note EICAS indications that the right engine is shutting down although the fuel control switch is still on with fuel flow indicated with EGT rising and N2 decreasing. The engine is secured with the fuel control switch and Maintenance is informed.