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NTSB Report
May 29, 1985 · Cessna 425 · N2079A
Dayton, OH
Overview
Report Status
Preliminary report
Event Type
Accident
Date
May 29, 1985
Injury Outcomes
1 injury (1 serious injury), 3 uninjured
Location
Dayton, OH
Aircraft
Cessna 425
Tail Number
N2079A
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
CHI85FA218
THE ACFT INVOLVED WAS EXPERIMENTALLY CONFIGURED WITH 4-BLADED PROPS AND WAS ON A TEST FLT TO DETERMINE HANDLING CHARACTERISTICS FOLLOWING A THROTTLE CHOP TO IDLE POWER AT 50 FT AGL. THIS MANEUVER HAD BEEN ACCOMPLISHED TWICE ON THE TEST FLT WITHOUT INCIDENT. ON THE THIRD LANDING, THE PLT LATER STATED, THAT HE RETARDED THE THROTTLES MORE BRISKLY THAN ON PREVIOUS APPROACHES. OBSERVERS ON THE PLANE AND ON THE GROUND THEN SAW A YAW AND A WING DROP. THE RIGHT GEAR STRUCK THE RWY FIRST, FOLLOWED BY THE LEFT AND NOSE GEARS. ALL THREE GEAR THEN SHEARED OFF. THE ACFT SLID TO A STOP OFF THE RWY 975 FT FROM INITIAL IMPACT. A POST-ACCIDENT TEARDOWN OF THE PROPS REVEALED NO PREEXISTING MISADJUSTMENTS OR ABNORMALITIES.
Full Narrative
THE ACFT INVOLVED WAS EXPERIMENTALLY CONFIGURED WITH 4-BLADED PROPS AND WAS ON A TEST FLT TO DETERMINE HANDLING CHARACTERISTICS FOLLOWING A THROTTLE CHOP TO IDLE POWER AT 50 FT AGL. THIS MANEUVER HAD BEEN ACCOMPLISHED TWICE ON THE TEST FLT WITHOUT INCIDENT. ON THE THIRD LANDING, THE PLT LATER STATED, THAT HE RETARDED THE THROTTLES MORE BRISKLY THAN ON PREVIOUS APPROACHES. OBSERVERS ON THE PLANE AND ON THE GROUND THEN SAW A YAW AND A WING DROP. THE RIGHT GEAR STRUCK THE RWY FIRST, FOLLOWED BY THE LEFT AND NOSE GEARS. ALL THREE GEAR THEN SHEARED OFF. THE ACFT SLID TO A STOP OFF THE RWY 975 FT FROM INITIAL IMPACT. A POST-ACCIDENT TEARDOWN OF THE PROPS REVEALED NO PREEXISTING MISADJUSTMENTS OR ABNORMALITIES.
Flight
Event TypeAccident
Event Time19:28 EDT
Nearest AirportJames M. Cox Dayton Intl (0nm N)
Runway24L
Runway Length7000 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 425
Tail NumberN2079A
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeTurboprop
Engine DetailsP&W · PT6A-112 · Turboprop · 450
Seats6
People & Injuries
Injury Summary1 injury (1 serious injury), 3 uninjured
Fatal0
Serious1
Minor0
Uninjured3
Total4
Crew 1Age 48 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind190° @ 3 kt
Visibility15 sm
CeilingBroken clouds 25000 ft
Temperature / Dew Point48
Altimeter29.00 inHg
Observation Time23:35
Weather SourceWFAC