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NTSB Report
September 8, 1992 · Aeronca 15AC · N1009H
Ptarmigan Pass, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 8, 1992
Injury Outcomes
No injuries (2 uninjured)
Location
Ptarmigan Pass, AK
Aircraft
Aeronca 15AC
Tail Number
N1009H
Operator
Hamlin Richard
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC92LA175
THE PILOT LANDED APPROXIMATELY 125 FEET PAST THE THRESHOLD OF A 700 FOOT LONG AIRSTRIP. HE BEGAN TO APPLY BRAKE PRESSURE WITH INCREASING PRESSURE. HE STATED THAT WHEN HE WAS APPLYING HARD BRAKE PRESSURE HE LOST ALL PRESSURE IN THE RIGHT BRAKE. THE PILOT STATED HE WAS NOT GOING TO BE ABLE TO STOP AND HE ATTEMPTED A GO AROUND. THE AIRPLANE DID NOT GET AIRBORNE BEFORE RUNNING OFF THE END OF THE AIRSTRIP AND OVERTURNING IN FISH CREEK. EXAMINATION OF THE BRAKE CALIPERS SHOWED THAT THE OLD DRUM BRAKE CALIPER HAD FRACTURED THROUGH THE CHAMBER CAUSING THE FLUID TO LEAK OUT.
NTSB Probable Cause
THE PARTIAL FAILURE OF THE NORMAL BRAKE SYSTEM, THE MISJUDGING OF THE PROPER TOUCHDOWN POINT AND THE ATTEMPTED GO AROUND. FACTOR WAS THE ROUGH AND UNEVEN LANDING AREA.
Full Narrative
THE PILOT LANDED APPROXIMATELY 125 FEET PAST THE THRESHOLD OF A 700 FOOT LONG AIRSTRIP. HE BEGAN TO APPLY BRAKE PRESSURE WITH INCREASING PRESSURE. HE STATED THAT WHEN HE WAS APPLYING HARD BRAKE PRESSURE HE LOST ALL PRESSURE IN THE RIGHT BRAKE. THE PILOT STATED HE WAS NOT GOING TO BE ABLE TO STOP AND HE ATTEMPTED A GO AROUND. THE AIRPLANE DID NOT GET AIRBORNE BEFORE RUNNING OFF THE END OF THE AIRSTRIP AND OVERTURNING IN FISH CREEK. EXAMINATION OF THE BRAKE CALIPERS SHOWED THAT THE OLD DRUM BRAKE CALIPER HAD FRACTURED THROUGH THE CHAMBER CAUSING THE FLUID TO LEAK OUT.
Flight
Event TypeAccident
Event Time17:30 AKDT
Nearest AirportGravel Bar Hartman River (0nm N)
Runway0
Runway Length700 ft
Runway Width25 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAeronca 15AC
Tail NumberN1009H
Aircraft CategoryAir
DamageSubstantial
OperatorHamlin Richard
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-300 · Reciprocating · 145
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 36 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility50 sm
CeilingOvercast 10000 ft
Temperature / Dew Point55 / 0 C
Altimeter0
Weather SourcePILO