DENTON, TX, USA
N39870
BELLANCA 17-31ATC
THE AIRPLANE WAS DEPARTING THE AIRPORT FOR A CROSS COUNTRY FLIGHT WHEN A PARTIAL POWER LOSS OCCURRED. THE PILOT DECIDED TO RETURN TO THE AIRPORT. A TOTAL POWER LOSS OCCURRED AND A FORCED LANDING RESULTED. DURING THE EMERGENCY DESCENT, THE AIRPLANE COLLIDED WITH TREES AND A UTILITY POLE. THE AIRPLANE DESCENDED UNCONTROLLED TO IMPACT THE TERRAIN. THE LOSS OF POWER WAS DUE TO THE IMPROPER INSTALLATION OF A OIL LINE BY THE PILOT DURING AN OIL CHANGE THAT HE PERFORMED. THE ENGINE OIL WAS EXHAUSTED FROM THE SYSTEM WHEN IT WAS PRESSURIZED.
THE PILOT FAILURES TO PROPERLY IN STALL A OIL LINE WHICH RESULTED IN A COMPLETE LOSS OF ENGINE POWER AFTER THE OIL SUPPLY WAS EXHAUSTED.
Source: NTSB Aviation Accident Database
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