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NTSB Report
December 29, 1992 · Beech C24R · N3809Q
Tulsa, OK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
December 29, 1992
Injury Outcomes
3 injuries (3 fatalities)
Location
Tulsa, OK
Aircraft
Beech C24R
Tail Number
N3809Q
Operator
Robertson James R
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
FTW93FA061
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.
NTSB Probable Cause
THE PILOT'S DISREGARD OF AND DESCENT BELOW THE PUBLISHED DECISION HEIGHT. FACTORS WERE HIS FAILURE TO MAINTAIN PROPER GLIDE PATH AND LOCALIZER ALIGNMENT.
Full Narrative
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.
Flight
Event TypeAccident
Event Time20:30 CST
Nearest AirportTulsa Intl. (1nm N)
Runway18
Runway Length6101 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireGrd
Aircraft ExplosionGrd
Aircraft
AircraftBeech C24R
Tail NumberN3809Q
Aircraft CategoryAir
DamageDestroyed
OperatorRobertson James R
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-360-A1B6 · Reciprocating · 180
Seats4
People & Injuries
Injury Summary3 injuries (3 fatalities)
Fatal3
Serious0
Minor0
Uninjured0
Total3
Crew 1Age 26 · First Class
Conditions
ConditionsIMC
LightDark Night
Wind160° @ 11 kt
Visibility1 sm
CeilingOvercast 200 ft
Temperature / Dew Point50 / 50
Altimeter30.00 inHg
Observation Time02:22
Weather SourceWFAC