LAX90FA082

NTSB accident investigation · Beech 95-55 · Chico, CA · February 6, 1990

Accident · FatalField investigationFinal report
Date
February 6, 1990, 12:54 local (20:54 UTC)
Place
Chico, CA
Injuries
3 fatal
Phase of flight
Approach
Aircraft
N721LBeech 95-55N790TCessna 182P
Weather
Visual (VMC) · Day
Status
Completed · report June 8, 1993
Report
Approved by Office Director
Case key
26609

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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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.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Midair collisionApproach - vfr pattern - downwind
Visual lookout - inadequatePilot in command(cfi)Cause
Visual lookout - inadequatePilot of other aircraftCause
Procedures/directives - not followedPilot in command(cfi)Factor
Procedures/directives - not followedPilot of other aircraftFactor
Impairment(drugs)Pilot of other aircraftFactor
Visual separation - inadequateAtc personnel(lcl/gnd/clnc)Factor
Midair collisionApproach - vfr pattern - downwind
Visual lookout - inadequatePilot in commandCause
Visual lookout - inadequatePilot of other aircraftCause
Procedures/directives - not followedPilot in commandFactor
Impairment(drugs)Pilot in commandFactor
Procedures/directives - not followedPilot of other aircraftFactor
Visual separation - inadequateAtc personnel(lcl/gnd/clnc)Factor

Analysis

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.

Aircraft · 2

Registration
N721L
Reported as
Beech 95-55
Category
Airplane
Serial number
TD-329
Airframe hours
6,651
Engine
Lycoming O-360-A1A, 180 horsepower, reciprocating
Damage
Destroyed
Flight
Instructional · Part 91
Operator
Chico Flight Center
Registered owner
Dennis Heckerson
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · January 25, 1990 · 8 hours before
Airport
CIC · Chico, runway 31R

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Registration
N790T
Reported as
Cessna 182P
Category
Airplane
Serial number
18262370
Airframe hours
2,714
Engine
Continental O-470S, 230 horsepower, reciprocating
Damage
Destroyed
Flight
Business · Part 91
Registered owner
Timbuck 2 Flying Club
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 2, 1989 · 27 hours before
Departed
RDD · Redding, CA
Airport
CIC · Chico, runway 31R

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N721L
Age
36
Certificates
Flight instructor, Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Toxicology
Performed
Flight hours
4,300 total
Role
Pilot, aircraft N790T
Age
42
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
383 total · 102 in this make and model · 338 as pilot in command · 2 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 15 knots
Visibility
60 statute miles
Lowest ceiling
20,000 ft broken
Altimeter
30.00 inHg
Observed at
CIC, 1 nm away

FAA reports on this event · 2

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.