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NTSB Report
October 20, 1991 · North American Navion · N8560H
Denison, TX
Overview
Report Status
Probable Cause
Event Type
Accident
Date
October 20, 1991
Injury Outcomes
No injuries (4 uninjured)
Location
Denison, TX
Aircraft
North American Navion
Tail Number
N8560H
Operator
Dean S Emerson
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW92LA012
ACCORDING TO THE PILOT AND WITNESSES, THE AIRPLANE FAILED TO ESTABLISH AN ADEQUATE CLIMB FOLLOWING INITIAL LIFTOFF. IT CLEARED 20 FOOT TREES AT THE END OF THE RUNWAY, BUT DID NOT CLEAR A 30 FOOT POWER POLE CROSS BAR AND WIRES. THE TAKEOFF WAS ATTEMPTED IN CALM WINDS FROM A 1,500 FOOT SOD STRIP THAT HAD AN UPHILL SLOPE. PERFORMANCE DATA INDICATED THAT FOR THE CONDITIONS THAT EXISTED AT THE TIME, THE AIRPLANE REQUIRED AN 875 FOOT GROUND RUN AND 1,775 FEET TO CLEAR A 50 FOOT OBSTACLE. THE AIRPLANE STRUCK THE POWER POLE 1800 FEET FROM THE DEPARTURE END OF THE RUNWAY. THE PERFORMANCE DATA DID NOT TAKE INTO ACCOUNT THE SOD RUNWAY OR THE UPSLOPE. THE PILOT SAID IN HIS REPORT THAT GIVEN THE OPPORTUNITY TO DO IT AGAIN, HE WOULD NOT HAVE ATTEMPTED THE TAKEOFF UNDER THE SAME CONDITIONS.
NTSB Probable Cause
THE EXCEEDING OF THE AIRPLANE'S TAKEOFF PERFORMANCE CAPABILITY BY THE PILOT'S INADEQUATE PREFLIGHT PREPARATION..
Full Narrative
ACCORDING TO THE PILOT AND WITNESSES, THE AIRPLANE FAILED TO ESTABLISH AN ADEQUATE CLIMB FOLLOWING INITIAL LIFTOFF. IT CLEARED 20 FOOT TREES AT THE END OF THE RUNWAY, BUT DID NOT CLEAR A 30 FOOT POWER POLE CROSS BAR AND WIRES. THE TAKEOFF WAS ATTEMPTED IN CALM WINDS FROM A 1,500 FOOT SOD STRIP THAT HAD AN UPHILL SLOPE. PERFORMANCE DATA INDICATED THAT FOR THE CONDITIONS THAT EXISTED AT THE TIME, THE AIRPLANE REQUIRED AN 875 FOOT GROUND RUN AND 1,775 FEET TO CLEAR A 50 FOOT OBSTACLE. THE AIRPLANE STRUCK THE POWER POLE 1800 FEET FROM THE DEPARTURE END OF THE RUNWAY. THE PERFORMANCE DATA DID NOT TAKE INTO ACCOUNT THE SOD RUNWAY OR THE UPSLOPE. THE PILOT SAID IN HIS REPORT THAT GIVEN THE OPPORTUNITY TO DO IT AGAIN, HE WOULD NOT HAVE ATTEMPTED THE TAKEOFF UNDER THE SAME CONDITIONS.
Flight
Event TypeAccident
Event Time15:50 CDT
Nearest AirportKIDD (0nm N)
Runway35
Runway Length1550 ft
Runway Width60 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftNorth American Navion
Tail NumberN8560H
Aircraft CategoryAir
DamageSubstantial
OperatorDean S Emerson
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · E-185-11 · Reciprocating · 185
Seats4
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 58 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind360° @ 5 kt
Visibility15 sm
CeilingBroken clouds 15000 ft
Temperature / Dew Point48
Altimeter30.00 inHg
Weather SourceWIT