Aviation Accident Summaries

Aviation Accident Summary DEN92FA091

STEAMBOAT SPRIN, CO, USA

Aircraft #1

N12GG

BEECH E-55

Analysis

THE INSTRUMENT RATED PILOT OBTAINED A WEATHER BRIEFING AND WAS TOLD VFR FLIGHT WAS NOT RECOMMENDED DUE TO A LINE OF THUNDERSTORMS BETWEEN HIS DEPARTURE POINT AND DESTINATION, AND A CONVECTIVE SIGMET HAD BEEN ISSUED. ADDITIONALLY, FLIGHT PRECAUTIONS HAD BEEN POSTED FOR MOUNTAIN OBSCUREMENT, LIGHT TO MODERATE MIXED TO CLEAR ICING, AND OCCASIONAL LIGHT TO MODERATE TURBULENCE. THE PILOT DID NOT FILE A FLIGHT PLAN AND DEPARTED. HUNTERS REPORTED SEEING A LOW FLYING TWIN ENGINE AIRPLANE CIRCLE THE AREA, THEN THEY HEARD THE IMPACT. THEY SAID THE WEATHER CONSISTED OF A LOW CEILING, REDUCED VISIBILITY, FOG, HIGH WINDS, AND RAIN THAT FOLLOWED A SNOW SHOWER. RECORDS INDICATE THE PILOT DID NOT FLY BETWEEN 1978 AND 1991, AND HAD RECENTLY BEEN GIVEN A CHECKOUT IN THE ACCIDENT AIRPLANE. NEAR VERTICAL IMPACT RESULTED IN MINIMAL WRECKAGE SCATTER.

Probable Cause and Findings

THE PILOT BECOMING SPATIALLY DISORIENTED AND LOSING CONTROL OF THE AIRPLANE. FACTORS WERE: THE PILOT'S DISREGARD OF THE PREFLIGHT WEATHER BRIEFING, HIS INTENTIONAL VFR FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS, HIS LACK OF RECENT INSTRUMENT TIME, AND WEATHER CONDITIONS.

 

Source: NTSB Aviation Accident Database

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