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NTSB Report
January 24, 1991 · Cessna 320 · N4112T
Middleton, WI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
January 24, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Middleton, WI
Aircraft
Cessna 320
Tail Number
N4112T
Operator
Gregory D Held
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI91LA076
THE PILOT SAID THAT AFTER TAKEOFF HE FAILED TO GET A GEAR UP AND LOCKED INDICATION. AFTER UNSUCCESSFUL ATTEMPTS TO LOWER THE GEAR, HE ELECTED TO RETURN FOR LANDING. A FLY-BY WAS EXECUTED FOR VERIFICATION OF A GEAR DOWN EXTENSION. DURING THE LANDING ROLL, THE RIGHT MAIN GEAR COLLAPSED FOLLOWED BY THE LEFT. THE NOSE GEAR REMAINED EXTENDED. THE AIRCRAFT VEERED OFF THE RUNWAY INTO A SNOW BANK AND SUSTAINED SUBSTANTIAL DAMAGE. POST ACCIDENT INVESTIGATION FAILED TO REVEAL A MECHANICAL CAUSE OF THE GEAR MALFUNCTION. THE OUTSIDE AIR TEMPERATURE WAS ABOUT ZERO F. AND HAD BEEN AS LOW AS 10 DEGREES BELOW PRIOR TO THE ACCIDENT, WHICH COULD CONTRIBUTE TO GEAR RETRACTION MALFUNCTION.
NTSB Probable Cause
THE MAIN LANDING GEAR COLLAPSED DURING LANDING ROLLOUT DUE TO EXTREME COLD TEMPERATURES. A FACTOR RELATED TO THE ACCIDENT WAS A SNOWBANK ADJACENT TO THE RUNWAY.
Full Narrative
THE PILOT SAID THAT AFTER TAKEOFF HE FAILED TO GET A GEAR UP AND LOCKED INDICATION. AFTER UNSUCCESSFUL ATTEMPTS TO LOWER THE GEAR, HE ELECTED TO RETURN FOR LANDING. A FLY-BY WAS EXECUTED FOR VERIFICATION OF A GEAR DOWN EXTENSION. DURING THE LANDING ROLL, THE RIGHT MAIN GEAR COLLAPSED FOLLOWED BY THE LEFT. THE NOSE GEAR REMAINED EXTENDED. THE AIRCRAFT VEERED OFF THE RUNWAY INTO A SNOW BANK AND SUSTAINED SUBSTANTIAL DAMAGE. POST ACCIDENT INVESTIGATION FAILED TO REVEAL A MECHANICAL CAUSE OF THE GEAR MALFUNCTION. THE OUTSIDE AIR TEMPERATURE WAS ABOUT ZERO F. AND HAD BEEN AS LOW AS 10 DEGREES BELOW PRIOR TO THE ACCIDENT, WHICH COULD CONTRIBUTE TO GEAR RETRACTION MALFUNCTION.
Flight
Event TypeAccident
Event Time09:10 CST
Nearest AirportMOREY (0nm)
Runway3
Runway Length2970 ft
Runway Width38 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 320
Tail NumberN4112T
Aircraft CategoryAir
DamageSubstantial
OperatorGregory D Held
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · TSIO-520-B · Reciprocating · 285
Seats6
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 48 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind300° @ 7 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time14:52
Weather SourceWFAC