CHI92FA211

NTSB accident investigation · Stinson 108-3 · Boonville, MO · July 25, 1992

Accident · FatalField investigationFinal report
Date
July 25, 1992, 06:20 local (11:20 UTC)
Place
Boonville, MO
Injuries
2 fatal, 1 serious, 1 minor
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N948CStinson 108-3
Weather
Visual (VMC) · Day
Status
Completed · report September 28, 1993
Report
Approved by Office Director
FAA report
19920725027319A
Case key
15299

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

Inadequate preflight planning, and exceeding the performance capability of the airplane by the pilot-in-command.

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 collision with objectTakeoff - initial climb
Object - wire,transmission
Terrain condition - grassFactor
Terrain condition - rough/unevenFactor
Terrain condition - softFactor
Preflight planning/preparation - inadequatePilot in commandCause
Aircraft performance,takeoff capability - exceeded
In flight collision with objectDescent - uncontrolled
Object - vehicle
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The airplane struck power lines near departure end of runway and crashed into a parking lot and was destroyed by a post crash fire. The airplane had full fuel, three passengers, and 100 hundred pounds of baggage. The runway was 2600 feet long, the surface was long grass, and the ground was soft and uneven. The airplane was approximately 175 pounds over maximum gross weight. Takeoff distance required for 50 foot obstacle clearance was 3188 feet.

Aircraft

Registration
N948C
Reported as
Stinson 108-3
Category
Airplane
Serial number
108-3948
Airframe hours
2,221
Engine
Franklin 6A4-165-B3, 165 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Operator
J.D. Twenter
Registered owner
J.D. Twenter
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
Annual · September 14, 1991 · 53 hours before
Destination
NONE · Holden Beach, NC
Airport
M84 · Snoody Airport, runway 5, 2,600 × 70 ft, grass/turf

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
53
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
5,000 total · 75 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 6 knots
Visibility
10 statute miles
Lowest ceiling
25,000 ft broken
Temperature
73 °F, dew point 72 °F
Altimeter
30.00 inHg
Observed at
COU, 26 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.