Turbochargers

During descent, pilot noted oil streaking back from top engine cowl louvers, then dropping oil pressure. Pilot conducted precautionary shutdown and feathered propeller. Pilot continued descent and landed at destination without issue. Maintenance removed cowling and found oil appearing to come from the turbocharger (p/n 4066109025) area. Further investigation revealed oil bypassing the seals on the turbo.

Editorial Staff

Thursday, November 29, 2018 at 12:00 AM ET

Verified

Key Takeaways:

Various aircraft models (Cessna, Diamond, Piper) experience a range of turbocharger-related malfunctions.
Common failures include seized turbochargers, blown or leaking seals/bearings, and cracked components like bearing flanges.
These issues frequently lead to significant operational problems such as loss of engine power, oil leaks, and can necessitate emergency landings or reduced flight performance.