FTW93FA150

NTSB accident investigation · Cessna 150M · Liberty Hill, TX · May 9, 1993

Accident · FatalField investigationFinal report
Date
May 9, 1993, 18:35 local (23:35 UTC)
Place
Liberty Hill, TX
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N63574Cessna 150M
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 1994
Report
Approved by Office Director
FAA report
19930509012619A
Case key
18654

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 inadvertent stall with insufficient altitude to recover before terrain contact.

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
Airspeed - inadequatePilot in commandCause
Stall - inadvertentPilot in commandFactor
Altitude - inadequatePilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

During a local area flight, designed to show his passenger the local area, the pilot in command stalled the airplane. The airplane was maneuvering at approximately 150 feet above ground level when control was lost. The throttle was found in the closed position and flaps were up. Impact was vertical.

Factual narrative

History of flight:

On May 9, 1993, at 1835 central daylight time, a Cessna 150M, N63574, was destroyed on impact with the ground near at Liberty, Texas. The airline transport rated pilot (ATP) and his passenger sustained fatal injuries. Weather for the local area flight was visual meteorological conditions. Crystal Finger Corporation was the registered owner.

Information provided by the owner to the investigator in charge (IIC) indicated that the ATP, who was also a certified flight instructor (CFII), rented the airplane for the purpose of showing his passenger the local area. A witness observed the airplane circling the area and heard the engine "splutter and then go silent." He further reported that the airplane "suddenly dropped its nose and dove to the ground." The airplane impacted approximately 250 yards from the airport and in a large pasture, approximately 100 acres.

Personnel information:

Information provided by friends of the passenger indicated that he was a former military pilot; however, the passenger held no U.S. civilian pilot's certificates or had been issued a medical certificate. Friends of the pilot reported that he had flown in the Iranian Air Force as a fighter pilot.

The emergency medical personnel and local law enforcement officials positively placed the pilot in command in the right seat.

Aircraft information:

A review of the records and a physical examination of the aircraft revealed no pre existing conditions that would have contributed to this accident.

Wreckage and impact information:

An examination of the physical evidence at the scene revealed that the airplane was imbedded in the ground nose first and the fuselage was in an erect position 90 degrees from the terrain angle. There was evidence of rotational rubbing on the ground in a clockwise direction. Both wings exhibited folding of the leading edges, the right wing leading edge was folded in an upward motion, and the left wing leading edge was folded in a downward motion. The right wing tip navigation light was found in a hole at the beginning of the rub marks and pieces of glass were scattered along the rub mark. Signatures in the ground were measured; they corresponded with the manufacturer's published dimensions for the aircraft's wing span.

It was documented that the engine throttle was in the closed position (full aft) and bent so that it could not be pushed forward.

Medical and pathological information:

An autopsy on the pilot was performed by the Travis County, Texas, Medical Examiner.

Toxicology testing was performed by the Civil Aeronautical Medical Institute, Oklahoma City, Oklahoma. Their testing established that the pilot in command's urine contained morphine marihuana; however, none was found in the in the blood. The Regional Flight Surgeon's enclosed report does not categorize the pilot as impaired from these drugs.

Tests and research:

The engine was examined after removal from the air frame, no anomalies were found.

Aircraft

Registration
N63574
Reported as
Cessna 150M
Category
Airplane
Serial number
15077403
Airframe hours
4,089
Engine
Lycoming O-200A, 100 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Crystal Finger Corporation
Airworthiness certificate
Standard, Utility
Last inspection
Annual · November 7, 1992 · 29 hours before
Departed
SX12
Destination
SX12

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
38
Certificates
Flight instructor, Airline transport
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
3,700 total

Weather

Conditions
Visual (VMC) · Day
Wind
100° at 5 knots
Visibility
10 statute miles
Lowest ceiling
1,900 ft broken
Temperature
72 °F, dew point 64 °F
Altimeter
29.00 inHg
Observed at
T04, 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.