SEA98LA031

NTSB accident investigation · Cessna 150F · Havre, MT · January 30, 1998

Accident · FatalLimited investigationFinal report
Date
January 30, 1998, 01:30 local (08:30 UTC)
Place
Havre, MT
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N8798GCessna 150F
Weather
Visual (VMC) · Night/dark
Status
Completed · report February 11, 2000
Report
Approved by Office Director
FAA report
19980130000769A
Case key
42751

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 student pilot's loss of control after his failure to maintain airspeed. Factors include his lack of total flight experience and incapacitation due to alcohol.

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 flightClimb
Airspeed - not maintainedPilot in commandCause
Lack of total experiencePilot in commandFactor
StallPilot in command
Incapacitation(alcohol)Pilot in commandFactor
Stolen aircraft/unauthorized usePilot in command
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Analysis

The student pilot had received three hours of dual instruction, but had not yet soloed. The airplane was removed from its hangar and flown without authorization from its owner. The student pilot's whereabouts were known until about 2347 the previous evening, and the airplane was first noted to be missing about 0530 in the morning. There were no known witnesses to the crash. However, one individual remembered seeing an airplane at 0130, which caught his attention, as it was departing to the east with winds from the west. He said the engine was not very loud, and the airplane was about 3-400 feet off the ground. He remembered seeing red and green lights and the airplane 'bobbing' in the wind, with the wings tipping from side to side. He left for work without paying further attention to the airplane, while it was still west of his house. The house is located about 1-2 blocks southwest of the crash site. FAA inspectors conducted an on-scene investigation and reported that no pre-crash mechanical anomalies were found. Toxicological testing by the FAA of samples from the student pilot confirmed a concentration of 52 mg/dl ethanol in blood, 116 mg/dl in brain fluid, and 152 mg/dl in urine.

Factual narrative

On January 30, 1998, about 0130 mountain standard time, N8798G, a Cessna 150F, collided with terrain at the departure end of runway 07 at Havre, Montana. The student pilot, who had received about three hours of dual flight instruction but had not yet soloed, was fatally injured, and the airplane was substantially damaged. Visual meteorological conditions prevailed. There was no fire, and no report of the ELT actuating.

The airplane was removed from its hangar and flown without authorization from its owner. The student pilot's whereabouts were known until about 2347 on the previous night (which was the time he terminated a telephone conversation with a friend in Chinook, Montana), and the airplane was first noted to be missing about 0530 in the morning. There were no known witnesses to the crash. However, one individual remembered seeing an airplane at 0130, which caught his attention, as it was departing to the east with winds from the west. He said the engine was not very loud, and the airplane was about 3-400 feet off the ground. He remembered seeing red and green lights and the airplane "bobbing" in the wind, with the wings tipping from side to side. He left for work without paying further attention to the airplane, while it was still west of his house. The house is located about 1-2 blocks southwest of the crash site.

FAA inspectors conducted an on-scene investigation and reported that no pre-crash mechanical anomalies were found.

Toxicological testing by the FAA confirmed a concentration of 52.000 mg/dl ethanol in blood, 116.000 mg/dl in brain fluid, and 152.000 mg/dl in urine. An autopsy was performed by Roland N. Lass, for the Hill County Coroner's office on January 30, 1998, which cited the probable cause of death as massive traumatic injuries secondary to a plane crash.

Aircraft

Registration
N8798G
Reported as
Cessna 150F
Category
Airplane
Serial number
15062898
Airframe hours
5,002
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Steve Witt
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 9, 1997 · 100 hours before
Departed
KHVR
Airport
HVR · Havre City, runway 7, 5,205 × 100 ft, asphalt

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
19
Certificate
Student
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
3 total · 3 in this make and model · 3 in the last 90 days

Weather

Conditions
Visual (VMC) · Night/dark
Wind
230° at 13 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
37 °F
Altimeter
29.00 inHg
Observed at
KHV

FAA reports on this event · 1

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