LAX97LA303

NTSB accident investigation · Fleming Glassair III · Dunsmuir, CA · November 14, 1996

Accident · FatalLimited investigationFinal report
Date
November 14, 1996, 05:05 local (13:05 UTC)
Place
Dunsmuir, CA
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N77DFFleming Glassair III
Weather
Visual (VMC) · Night/dark
Status
Completed · report March 31, 1998
Report
Approved by Office Director
FAA report
19961114045779A
Case key
29885

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

was the pilot's intentional flight into marginal meteorological conditions in mountainous terrain during dark nighttime conditions.

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.

In flight encounter with weatherClimb
Weather condition - cloudsFactor
Light condition - dark nightFactor
Terrain condition - mountainous/hillyFactor
Vfr flight into imc - initiatedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The noninstrument-rated pilot departed before daylight in mountainous terrain under an overcast sky. The pilot did not file a flight plan nor obtain a formal weather briefing. When he failed to arrive at his destination a search was initiated. The aircraft was located 9 months later, about 4.5 miles south of the departure point in mountainous terrain. According to a sheriff's investigator, the engine was buried below the ground surface and the airplane was very fragmented.

Factual narrative

On November 14, 1996, about 0505 hours Pacific standard time, an experimental Fleming Glassair III, N77DF, was destroyed after colliding with terrain near Dunsmuir, California. The pilot received fatal injuries. While the meteorological conditions at the time of the accident are unknown, patchy early morning fog was forecast for the general area. The pilot did not file a flight plan for the personal cross-country flight. According to the resident Dunsmuir-Mott airport manager, the flight originated at Dunsmuir-Mott Airport about 0500 on the morning of the accident and was destined for Palm Springs, California.

When the aircraft failed to arrive at Palm Springs, a ground and air search was initiated with negative results. On August 25, 1997, the aircraft wreckage was located at latitude 41 degrees 12 minutes 14 seconds north, and longitude 122 degrees 14 minutes 20 seconds west in mountainous terrain about 3,500 feet msl and 4.5 miles south of the Dunsmuir-Mott Airport. According to a sheriff's investigator, the engine was buried below the surface of the ground and the airplane was fragmented into many pieces.

The pilot had been issued a private pilot certificate on June 8, 1995. The pilot's flight logbook was recovered at the accident site. According to the readable portions of the logbook, at the last documented log entry dated November 11, 1996, he had about 339 flight hours.

The nearest weather reporting facility for the accident site was Mount Shasta. An automated weather observation recorded at 0456 was: wind variable at 4 knots; visibility 10 miles; sky overcast at 4,400 feet agl; temperature 33 degrees Fahrenheit; dew point 32 degrees Fahrenheit; and the altimeter was 30.10 inHg.

Aircraft

Registration
N77DF
Reported as
Fleming Glassair III (GLASSAIR I)
Category
Airplane, amateur-built
Serial number
3202
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Steve R. Williams
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · June 22, 1996
Departed
106 · Dunsmuir-Mott, CA
Destination
PSP · Palm Springs, CA

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
43
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Flight hours
399 total · 10 in the last 90 days · 7 in the last 30 days

Weather

Conditions
Visual (VMC) · Night/dark
Wind
0° at 4 knots
Visibility
10 statute miles
Lowest ceiling
4,400 ft overcast
Temperature
34 °F
Altimeter
30.00 inHg
Observed at
KMH, 10 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.