SDR 2021FA0000171

Service difficulty report · Oil System · Bolkms BK117C2

Difficulty date: June 11, 2021
Submitted: June 14, 2021
Operation: General aviation
Aircraft: N240SF
Make and model: Bolkms BK117C2
Aircraft serial: 9403
Engine: Tmeca ARRIEL1E2
Engine time: 7,128 hours, 10,804 cycles
System (JASC): 7261 · Turbine Engine Oil System
Part: Oil System
Condition: Leaking
Location: Nr 1 Engine
Stage of operation: CR
How discovered: O
Nature of condition: K, J
Precautionary procedure: E, A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

IN CRUISE FLIGHT #1 ENGINE OIL PRESSURE LIGHT CAME ON ENGINE OIL TEMP STARTED TO RISE FOLLOWED BY DEC4REASING ENGINE TORQUE INDICATION. PILOT SHUTDOWN #1 ENGINE AND PERFORMED A RUNNING LANDING AT KYVS. INVESTIGATION SHOWED LOSS OF OIL IN ENGINE RESERVOIR AND AND BURNT OI AT THE POWER TURBINE WHEEL AT THE BACK OF THE ENGINE. ENGINE WAS REPLACED AND THE SUSPECT ENGINE WILL BE SENT TO THE MANUFACTURER FOR FURTHER INVESTIGATION.