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NTSB Report
February 6, 1990 · Beech 95-55 · N721L
Chico, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 6, 1990
Injury Outcomes
3 injuries (3 fatalities)
Location
Chico, CA
Aircraft
Beech 95-55
Tail Number
N721L
Operator
Chico Flight Center
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
LAX90FA082
THE C-182P, N790T, HAD INITIALLY CALLED 8.5 MI NW FOR LANDING, & WAS CLEARED TO ENTER A LEFT DOWNWIND. ABOUT 2 MIN LATER THE PLT REPORTED HE WAS COMING IN ON THE EAST SIDE OF THE FIELD, WAS CLEARED FOR A RIGHT DOWNWIND, AND ADVISED OF THE OTHER ACFT IN THE RIGHT TRAFFIC PATTERN. THE BE-95, N721L, HAD JUST MADE A TOUCH-&-GO AND WAS TURNING TO A DOWNWIND. THE CONTROLLERS REPORTED THAT THE TURN WAS ABOUT A 30-DEG CONSTANT TURN WITH NO ROLL-OUT ON THE CROSSWIND LEG. THE ACFT COLLIDED ABOUT 2 MI N OF THE ARPT. THE AIM STATES, FOR RECOMMENDED VFR TRAFFIC PATTERN OPERATIONS, THAT ARRIVING ACFT SHOULD ENTER THE PATTERN ABEAM THE MIDPOINT OF THE RUNWAY. THE TOX EXAM OF THE PLT OF THE C-182P, N790T, DISCLOSED A POSITIVE CANNABINOIDS (MARIJUANA) FINDING, 0.098 MG/L, IN THE URINE SAMPLE.
NTSB Probable Cause
THE FAILURE OF THE PILOTS OF N790T AND N721L TO SEE AND AVOID EACH OTHER. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT WERE: THE PILOT OF THE C-182P, N790T, WAS DISORIENTED AND IMPROPERLY ENTERED THE TRAFFIC PATTERN DUE TO RECENT MARIJUANA USE; THE PILOT OF THE BE-95, N721L, FAILED TO PROPERLY EXECUTE A CROSSWIND LEG IN THE TRAFFIC PATTERN; AND THE LOCAL CONTROLLER FAILED TO VISUALLY MAINTAIN ADEQUATE SEPARATION OF THE TWO AIRCRAFT.
Full Narrative
THE C-182P, N790T, HAD INITIALLY CALLED 8.5 MI NW FOR LANDING, & WAS CLEARED TO ENTER A LEFT DOWNWIND. ABOUT 2 MIN LATER THE PLT REPORTED HE WAS COMING IN ON THE EAST SIDE OF THE FIELD, WAS CLEARED FOR A RIGHT DOWNWIND, AND ADVISED OF THE OTHER ACFT IN THE RIGHT TRAFFIC PATTERN. THE BE-95, N721L, HAD JUST MADE A TOUCH-&-GO AND WAS TURNING TO A DOWNWIND. THE CONTROLLERS REPORTED THAT THE TURN WAS ABOUT A 30-DEG CONSTANT TURN WITH NO ROLL-OUT ON THE CROSSWIND LEG. THE ACFT COLLIDED ABOUT 2 MI N OF THE ARPT. THE AIM STATES, FOR RECOMMENDED VFR TRAFFIC PATTERN OPERATIONS, THAT ARRIVING ACFT SHOULD ENTER THE PATTERN ABEAM THE MIDPOINT OF THE RUNWAY. THE TOX EXAM OF THE PLT OF THE C-182P, N790T, DISCLOSED A POSITIVE CANNABINOIDS (MARIJUANA) FINDING, 0.098 MG/L, IN THE URINE SAMPLE.
Flight
Event TypeAccident
Event Time12:54 PST
Nearest AirportCHICO (0nm N)
Runway31R
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech 95-55
Tail NumberN721L
Aircraft CategoryAir
DamageDestroyed
OperatorChico Flight Center
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A1A · Reciprocating · 180 | Continental · O-470S · Reciprocating · 230
Seats5
People & Injuries
Injury Summary3 injuries (3 fatalities)
Fatal3
Serious0
Minor0
Uninjured0
Total3
Crew 1Age 36 · Second Class
Crew 2Age 42 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind300° @ 15 kt
Visibility60 sm
CeilingBroken clouds 20000 ft
Temperature / Dew Point0 C / 0 C
Altimeter30.00 inHg
Observation Time20:55
Weather SourceWFAC