Aviation Accident Summaries

Aviation Accident Summary CHI91LA161

MANKATO, MN, USA

Aircraft #1

N2906Z

PIPER PA-22-160

Analysis

THE PILOT SAID THAT SHORTLY AFTER TAKEOFF A PARTIAL LOSS OF ENGINE POWER WAS EXPERIENCED. AN EMERGENCY LANDING WAS ATTEMPTED IN A FARM FIELD WHICH RESULTED IN A NOSE OVER. POST ACCIDENT INVESTIGATION REVEALED A FAULTY ENGINE PRIMER LOCK. WHEN THE ENGINE WAS RUN UP AND THE PRIMER BECAME UNLOCKED, THE ENGINE RPM WOULD DROP, WHICH CONINCIDED WITH THE PILOT'S STATEMENT.

Probable Cause and Findings

PARTIAL LOSS OF ENGINE POWER DUE TO AN UNLOCKED ENGINE PRIMER. FACTORS RELATED TO THE ACCIDENT WERE THAT THE PRE TAKEOFF CHECK LIST WAS NOT FOLLOWED BY THE PILOT AND THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING.

 

Source: NTSB Aviation Accident Database

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