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NTSB Report
April 22, 1990 · Beech E 55 · N17577
New Richmond, WI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 22, 1990
Injury Outcomes
No injuries (5 uninjured)
Location
New Richmond, WI
Aircraft
Beech E 55
Tail Number
N17577
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI90LA116
THE PILOT STATED THAT HE HAD EXTENDED THE LANDING GEAR AND FLAPS DURING THE DOWNWIND LEG OF THE TRAFFIC PATTERN; HIS PASSENGER AND A GROUND WITNESS CONFIRMED THAT THE GEAR WAS EXTENDED DURING THE FINAL APPROACH AND TOUCHDOWN PHASE OF FLIGHT. THE PILOT REPORTED THAT HE VISUALLY VERIFIED THAT THE GEAR WAS DOWN AND LOCKED PRIOR TO TOUCHDOWN, BUT SHORTLY AFTER TOUCHDOWN THE LEFT WING STARTED LOWERING AS THE LEFT MAIN AND NOSE GEAR COLLAPSED. POST-ACCIDENT EXAMINATION OF THE LANDING GEAR SYSTEM REVEALED NO EVIDENCE OF PRE-IMPACT MALFUNCTION; THE FAA INSPECTOR REPORTED THAT THE 'ENTIRE LANDING GEAR SYSTEM WAS IN A TRANSIT MODE....DURING THE LANDING ROLL....' THE PILOT STATED THAT HE MIGHT HAVE INADVERTENTLY RETRACTED THE LANDING GEAR, BUT HE DID NOT REMEMBER.
NTSB Probable Cause
PILOT'S IMPROPER USE OF THE LANDING GEAR MECHANISM DURING THE LANDING ROLL, WHICH RESULTED IN THE PARTIAL COLLAPSE OF THE LANDING GEAR.
Full Narrative
THE PILOT STATED THAT HE HAD EXTENDED THE LANDING GEAR AND FLAPS DURING THE DOWNWIND LEG OF THE TRAFFIC PATTERN; HIS PASSENGER AND A GROUND WITNESS CONFIRMED THAT THE GEAR WAS EXTENDED DURING THE FINAL APPROACH AND TOUCHDOWN PHASE OF FLIGHT. THE PILOT REPORTED THAT HE VISUALLY VERIFIED THAT THE GEAR WAS DOWN AND LOCKED PRIOR TO TOUCHDOWN, BUT SHORTLY AFTER TOUCHDOWN THE LEFT WING STARTED LOWERING AS THE LEFT MAIN AND NOSE GEAR COLLAPSED. POST-ACCIDENT EXAMINATION OF THE LANDING GEAR SYSTEM REVEALED NO EVIDENCE OF PRE-IMPACT MALFUNCTION; THE FAA INSPECTOR REPORTED THAT THE 'ENTIRE LANDING GEAR SYSTEM WAS IN A TRANSIT MODE....DURING THE LANDING ROLL....' THE PILOT STATED THAT HE MIGHT HAVE INADVERTENTLY RETRACTED THE LANDING GEAR, BUT HE DID NOT REMEMBER.
Flight
Event TypeAccident
Event Time12:30 CDT
Nearest AirportNew Richmond Municipal (0nm N)
Runway13
Runway Length3000 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech E 55
Tail NumberN17577
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · IO-520 · Reciprocating · 285
Seats6
People & Injuries
Injury SummaryNo injuries (5 uninjured)
Fatal0
Serious0
Minor0
Uninjured5
Total5
Crew 1Age 53 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind170° @ 12 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point54
Altimeter30.00 inHg
Observation Time15:50
Weather SourceWFAC