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NTSB Report
September 21, 1991 · Cessna 206 · N5123U
Jamul, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 21, 1991
Injury Outcomes
No injuries (6 uninjured)
Location
Jamul, CA
Aircraft
Cessna 206
Tail Number
N5123U
Operator
Olen D Mumma
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX91LA409
THE PILOT STATED THAT IT WAS HIS FIFTH JUMP FLIGHT OF THE DAY. HE STATED, THE RUNWAY HAD JUST BEEN WIDENED BY GRADING, WHICH LEFT HALF OF THE RUNWAY SOFT FROM THE GRADING. IT ALSO CREATED A DIRT BERM OF EXCESS MATERIAL TO THE LEFT SIDE OF THE RUNWAY. ON PREVIOUS TAKEOFFS HE INDICATED THAT THERE WAS A SLIGHT PULL TO THE RIGHT WHICH HE COUNTERED WITH RUDDER. HE ALSO STATED THAT IT HAD BEEN RAINING AND THE GROUND WAS WET. THE PILOT LOST DIRECTIONAL CONTROL AND COLLIDED WITH THE DIRT BERM.
NTSB Probable Cause
THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL DURING THE TAKEOFF GROUND RUN. CONTRIBUTING TO THE ACCIDENT WAS THE SOFT WET RUNWAY CONDITION.
Full Narrative
THE PILOT STATED THAT IT WAS HIS FIFTH JUMP FLIGHT OF THE DAY. HE STATED, THE RUNWAY HAD JUST BEEN WIDENED BY GRADING, WHICH LEFT HALF OF THE RUNWAY SOFT FROM THE GRADING. IT ALSO CREATED A DIRT BERM OF EXCESS MATERIAL TO THE LEFT SIDE OF THE RUNWAY. ON PREVIOUS TAKEOFFS HE INDICATED THAT THERE WAS A SLIGHT PULL TO THE RIGHT WHICH HE COUNTERED WITH RUDDER. HE ALSO STATED THAT IT HAD BEEN RAINING AND THE GROUND WAS WET. THE PILOT LOST DIRECTIONAL CONTROL AND COLLIDED WITH THE DIRT BERM.
Flight
Event TypeAccident
Event Time15:30 PDT
Nearest AirportPrivate Strip (0nm)
Runway27
Runway Length2000 ft
Runway Width70 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 206
Tail NumberN5123U
Aircraft CategoryAir
DamageSubstantial
OperatorOlen D Mumma
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520-A · Reciprocating · 285
Seats6
People & Injuries
Injury SummaryNo injuries (6 uninjured)
Fatal0
Serious0
Minor0
Uninjured6
Total6
Crew 1Age 20 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind260° @ 6 kt
Visibility7 sm
CeilingBroken clouds 20000 ft
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time21:47
Weather SourceWFAC