LAX90FA070

NTSB accident investigation · Piper PA-28-161 · Burbank, CA · January 19, 1990

Accident · FatalField investigationFinal report
Date
January 18, 1990, 20:14 local (Jan 19, 1990, 04:14 UTC)
Place
Burbank, CA
Injuries
4 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N8251BPiper PA-28-161
Weather
Visual (VMC) · Night/dark
Status
Completed · report May 18, 1992
Report
Approved by Office Director
FAA report
19900118000709A
Case key
26608

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

On this page

Probable cause

Poor judgement of the instructor pilot (CFI) due to his impairment from use of marijuana, inadequate supervision of the flight by the CFI, and his failure to assure that adequate airspeed was maintained, which resulted in an inadvertent stall. Factors related to the accident were: the cfi's inadequate preflight planning/preparation, and his failure to assure the aircraft was within its certified gross weight limit.

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.

Loss of control - in flightManeuvering - turn to landing area (emergency)
Judgment - poorPilot in command(cfi)Cause
Impairment(drugs)Pilot in command(cfi)Cause
Supervision - inadequatePilot in command(cfi)Cause
Preflight planning/preparation - inadequatePilot in command(cfi)Factor
Aircraft weight and balance - exceededPilot in command(cfi)Factor
Light condition - dark night
Precautionary landing - initiatedPilot in command(cfi)
Airspeed - inadequatePilot in command(cfi)Cause
Stall - inadvertentPilot in command(cfi)Cause
In flight collision with terrain/waterManeuvering - turn to landing area (emergency)

Analysis

The acft was scheduled for a ngt instrument training flt with 2 additional plts aboard, who were seeking instrument ratings. Shortly after taking off from rwy 7, the instructor (CFI) radioed to the tower that an immediate lndg was necessary, but he did not give a reason. The flt was clrd to land. The acft was then observed to enter a steep left turn at low alt & descend abruptly. It crashed in a steep descent about 500 ft north of rwy 7 on a heading of about 260 deg. Impact occurred in a left wing low, nose down attitude. No preimpact part failure or malfunction of the acft or eng was found. Tests of the cfi's blood showed that it contained 1 ng/ml of delta-9-tetrahydrocannabinol (a psychoactive component of marijuana) & 7 ng/ml of delta-9-tetrahydrocannabinol carboxylic acid (a metabolite of marijuana). Gross wt of the acft was estimated to be 2411 lbs; its max certified gross wt was 2325 lbs.

Aircraft

Registration
N8251B
Reported as
Piper PA-28-161
Category
Airplane
Serial number
28-8216182
Engine
Lycoming O-320, 160 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Instructional · Part 91
Operator
Daniel Tompkins, doing business as Pilots Coop Supply
Registered owner
John F. Campbell
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 1, 1989
Departed
BUR
Destination
SBA · Santa Barbara, CA
Flight plan
IFR
Airport
BUR · Burbank, runway 7, 6,074 × 150 ft, macadam

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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
30
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Toxicology
Performed
Flight hours
1,100 total

Weather

Conditions
Visual (VMC) · Night/dark
Wind
Calm
Visibility
15 statute miles
Lowest ceiling
None
Temperature
50 °F, dew point 43 °F
Altimeter
30.00 inHg
Observed at
BUR, 1 nm away

FAA reports on this event · 1

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