Aviation Accident Summaries

Aviation Accident Summary FTW89LA043

WICHITA FALLS, TX, USA

Aircraft #1

N88785

HILLER OH-23B

Analysis

THE PLT RPRTD THAT AFTER HE HAD FLOWN ABOUT 45 MIN, HE LANDED AT THE WICHITA VALLEY ARPT, THEN TOOK OFF FOR A RTRN FLT TO HOLLIDAY, TX. SHORTLY AFTER DEPARTING THE WICHITA VALLEY ARPT, WHILE EN ROUTE AT ABOUT 500' AGL, THE ENG 'MISSED A FEW TIMES.' THE PLT TURNED TO LAND AT THE ARPT, BUT THE ENG SUBSEQUENTLY LOST ALL POWER. THE PLT MADE AN AUTOROTATIVE LANDING IN A WHEAT FIELD; HOWEVER, DRG THE LANDING, THE HELICOPTER TOUCHED DOWN HARD & WAS DAMAGED. THE LANDING WAS ON A NORTHERLY HEADING. THE 1001 CST WIND AT WICHITA FALLS WAS FROM 180 DEG AT 10 KTS. NO PREIMPACT MECHANICAL PROBLEM WAS FOUND DRG THE INVESTIGATION. THE TEMP & DEW POINT WERE 49 & 24 DEG, RESPECTIVELY. ACCORDING TO CARB ICING CHARTS, CONDITIONS WERE CONDUCIVE FOR CARB ICING. THE PLT RPRTD HE WAS OPERATING WITH THE CARB HEAT APRX 1/4 'ON.'

Probable Cause and Findings

THE PILOT'S IMPROPER USE OF THE CARBURETOR HEAT DURING FLIGHT AND HIS IMPROPER FLARE DURING AN AUTOROTATIVE LANDING. CONTRIBUTING FACTORS WERE: CARBURETOR ICING CONDITIONS, IMPROPER IN-FLIGHT PLANNING/DECISION BY THE PILOT, A TAILWIND DURING THE LANDING, AND THE PILOT'S LACK OF RECENT EXPERIENCE.

 

Source: NTSB Aviation Accident Database

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