SEA93LA131

NTSB accident investigation · Champion 7GC · Gillette, WY · June 14, 1993

Accident · No injuriesLimited investigationFinal report
Date
June 14, 1993, 10:49 local (16:49 UTC)
Place
Gillette, WY
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8947RChampion 7GC
Weather
Visual (VMC) · Day
Status
Completed · report February 10, 1994
Report
Approved by Office Director
FAA report
19930614017849A
Case key
43038

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 pilot in command's not maintaining directional control and the overload of the left main landing gear. A factor contributing to the accident was the pilot's lack of experience in conventionally geared aircraft.

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 - on ground/waterLanding - roll
Directional control - not maintainedPilot in commandCause
Lack of total experience in type of aircraftPilot in commandFactor
Main gear collapsedLanding - roll
Landing gear,main gear - overloadCause

Analysis

While landing on runway 34 the conventionally geared aircraft began to oscillate from left to right. The pilot in command was unable to maintain directional control and as the oscillation increased in severity, the left main landing gear collapsed due to side loading. The pilot reported to the investigator that he had minimal time in conventionally geared aircraft.

Aircraft

Registration
N8947R
Reported as
Champion 7GC
Category
Airplane
Serial number
7GC163
Airframe hours
1,802
Engine
Lycoming O-290-D2B, 135 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Greer, Randy & Knutson, Jim
Registered owner
Greer, Randy & Knutson, Jim
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 19, 1993 · 11 hours before
Departed
GCC
Destination
GCC
Airport
GCC · Campbell County, runway 34, 7,500 × 150 ft, concrete

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
45
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
810 total · 3 in this make and model · 690 as pilot in command · 205 in the last 90 days · 60 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
20 statute miles
Lowest ceiling
None
Temperature
63 °F, dew point 41 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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