TULSA, OK, USA
N3809Q
BEECH C24R
THE PILOT WAS EXECUTING AN ILS APPROACH IN DARK NIGHT IMC, WHEN THE AIRPLANE IMPACTED TREES AT THE 50 FOOT AGL LEVEL, ABOUT 150 FEET BELOW THE DECISION HEIGHT. THE AIRPLANE SUBSEQUENTLY IMPACTED THE GROUND AND BURNED. THE TREES WERE ABOUT 1/2 MILE SHORT OF AND 1/2 MILE LEFT OF THE EXTENDED CENTERLINE OF THE LANDING RUNWAY WHICH WAS NOT EQUIPPED WITH AN APPROACH LIGHTING SYSTEM. A PARALLEL RUNWAY, WHICH EXTENDED OUT 1,000 FEET BEYOND THE LANDING RUNWAY WAS EQUIPPED WITH AN ILS AND MEDIUM INTENSITY APPROACH LIGHTING SYSTEM, SEQUENCED FLASHING LIGHTS AND RUNWAY CENTERLINE LIGHTS. THE AIRPLANE IMPACTED THE TREES ABOUT MIDWAY BETWEEN THE TWO RUNWAYS, ON A HEADING TOWARD THE SECOND RUNWAY.
THE PILOT'S DISREGARD OF AND DESCENT BELOW THE PUBLISHED DECISION HEIGHT. FACTORS WERE HIS FAILURE TO MAINTAIN PROPER GLIDE PATH AND LOCALIZER ALIGNMENT.
Source: NTSB Aviation Accident Database
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