Aviation Accident Summaries

Aviation Accident Summary SEA92FA113

ST. IGNATIUS, MT, USA

Aircraft #1

N30922

CESSNA 177B

Analysis

THE ACCIDENT SITE WAS LOCATED AT THE 7500 FOOT LEVEL OF MOUNTAINOUS TERRAIN IN A DRAW WHICH SLOPED UPHILL AT A GRADIENT OF +15 DEGREES TO THE WEST. ON SITE EXAMINATION INDICATED THAT THE AIRCRAFT IMPACTED THE GROUND IN A NEAR VERTICAL ATTITUDE WITH THE WRECKAGE COMING TO REST APPROXIMATELY 45 FEET EAST-SOUTHEAST AND DOWNSLOPE OF THE IMPACT SITE. THERE WAS NO EVIDENCE OF POWERPLANT NOR CONTROL MALFUNCTION. A REVIEW OF THE PILOT'S LOGBOOK REVEALED NO PREVIOUS FLIGHT EXPERIENCE WITHIN THE STATE OF MONTANA NOR ANY DOCUMENTED MOUNTAIN FLIGHT EXPERIENCE.

Probable Cause and Findings

THE PILOT IN COMMAND'S INADVERTENTLY ALLOWING THE AIRCRAFT TO ENTER INTO A STALL/SPIN. FACTORS CONTRIBUTING TO THE ACCIDENT WERE: TERRAIN CONDITION, RISING TERRAIN, AND THE PILOT IN COMMAND'S LACK OF FAMILIARITY WITH THE GEOGRAPHIC AREA.

 

Source: NTSB Aviation Accident Database

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