ATL94FA137

NTSB accident investigation · Cessna 150L · Greenville, TN · July 12, 1994

Accident · FatalField investigationFinal report
Date
July 11, 1994, 23:00 local (Jul 12, 1994, 03:00 UTC)
Place
Greenville, TN
Injuries
2 fatal
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N18714Cessna 150L
Weather
Visual (VMC) · Night/dark
Status
Completed · report October 13, 1995
Report
Approved by Office Director
FAA report
19940711018289A
Case key
3299

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

The failure of the pilot to maintain sufficient terrain clearance, and his inadvertent stall at low altitude.

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
Terrain condition - mountainous/hilly
Light condition - dark night
Altitude/clearance - not maintainedPilot in commandCause
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The two reserve deputy sheriffs overheard a report of a missing person on their radio scanners. The two then rented the aircraft from the local airport and departed at 2030 to attempt to assist in the search. Witnesses in the area reported that the aircraft was maneuvering at an altitude of about 100 feet above ground level in the mountainous terrain. The witnesses reported hearing the engine RPM increase just prior to the accident. The aircraft impacted the terrain, in a stalled condition, at the base of a small valley.

Factual narrative

History of flight

On July 11, 1994, at 2300 eastern daylight time, a Cessna 150L, N18714 was substantially damaged following a collision with terrain near Greenville, Tennessee. The private pilot and his passenger were both fatally injured in the accident. The aircraft was being operated under the provisions of 14 CFR Part 91 by the pilot. Visual meteorological condition existed at the time, and no flight plan had been filed for the local aerial observation flight. The flight departed the Greenville, Tennessee Airport about 2230.

According to witnesses, the aircraft was participating in a search and rescue flight to assist local authorities. The aircraft was maneuvering at less than 100 feet above ground level. The witnesses stated that they observed the aircraft approaching a residence at an altitude lower than the residence (about 100 feet above the bottom of the valley). The witnesses reported hearing the aircraft engine revolution per minute increase just prior to impact with the terrain. The aircraft impacted the terrain in a nose down attitude.

Personnel information

The pilot held a private pilot certificate with airplane single engine rating. He held a third class medical certificate with no waivers or limitations.

The pilot's log books reflected a total of 106 hours of flight time recorded, and a total of 33 hours of night flight time.

Additional personnel information may be obtained in this report on page 3 under section titled First Pilot Information.

Aircraft information

The Cessna 150L is a two place, single engine, fixed tricycle gear airplane.

Additional aircraft information may be obtained in this report on page 2 under section titled Aircraft Information.

Meteorological information

The weather at the time of the accident was suitable for flight under visual flight rules. Witnesses reported that it was a dark night with overcast skies.

Additional meteorological information may be obtained in this report on page 3 under section titled Weather Information.

Wreckage and impact information

The aircraft impacted the terrain on a heading of 212 degrees at the base of a small valley in the mountainous terrain. There was extensive leading edge crushing of both wings from the fuselage outward to the wing tips. The fuselage was broken just aft of the cabin section of the aircraft.

There was continuity of the engine drive train. The propeller showed signs of chordwise scratching, and twisting toward low pitch.

Medical and pathological information

An autopsy of the pilot was conducted by Dr. William McCormick of the Upper East Tennessee Forensic Center in Johnson City, Tennessee. The medical examiner stated that the cause of death of the pilot was multiple blunt trauma associated with the accident.

A toxicological examination of the pilot was conducted by the Federal Aviation Administration Toxicology and Accident Research Laboratory in Oklahoma City, Oklahoma. The toxicological report was negative for the use of drugs and ethanol.

Additional information

The aircraft wreckage was released to the owners insurance representative, Mrs. Debbie Jo Tennis, on July 13, 1994.

Aircraft

Registration
N18714
Reported as
Cessna 150L
Category
Airplane
Serial number
15074054
Airframe hours
5,067
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial observation · Part 91
Operator
Desormeaux, Robert J.
Registered owner
Hale, Frank R. III
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 13, 1994 · 44 hours before
Destination
GCY · TN

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
26
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
106 total · 93 in this make and model · 61 as pilot in command · 3 in the last 90 days

Weather

Conditions
Visual (VMC) · Night/dark
Wind
Calm
Visibility
7 statute miles
Lowest ceiling
2,000 ft broken
Temperature
72 °F, dew point 72 °F
Altimeter
30.00 inHg
Observed at
GCY, 15 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.