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NTSB Report
June 19, 1991 · Piper PA-18 · N10PC
Woods River, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 19, 1991
Injury Outcomes
2 injuries (1 fatality, 1 serious injury)
Location
Woods River, AK
Aircraft
Piper PA-18
Tail Number
N10PC
Operator
Lynn M Castle
Injuries
Fatal
Aircraft Damage
Substantial
NTSB Number
ANC91LA077
THE PILOT MADE A LOW, SLOW PASS OVER THE LANDING AREA. AFTER COMPLETING THE PASS, HE MADE A SHARP BANKED TURN TO THE LEFT AT LOW AIRSPEED, AND THE AIRPLANE STALLED AND CRASHED. NO PREIMPACT MECHANICAL PROBLEM WAS FOUND THAT WOULD HAVE RESULTED IN THE ACCIDENT. A TOXICOLOGY CHECK OF THE PLT'S BLOOD SHOWED A LOW LEVEL OF ETHANOL, BUT NO ETHANOL WAS FOUND IN HIS URINE; THE AMOUNT OF BLOOD/ETHANOL DUE TO PUTREFACTION WAS NOT VERIFIED. THE AIRPLANE WAS LOADED WITH 2 OCCUPANTS, A DOG, 73 LBS OF GROCERIES, AND A 50 LB SACK OF FEED ON EACH WING STRUT, BUT THE INVESTIGATION DID NOT VERIFY THE WEIGHT/DISTRIBUTION. THE PASSENGER REPORTED THAT THE AIRPLANE ENCOUNTERED WIND GUSTS AND TURBULENCE.
NTSB Probable Cause
FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED, WHILE TURNING AFTER A LOW PASS, WHICH RESULTED IN AN INADVERTENT STALL. THE WIND GUSTS AND TURBULENCE WERE RELATED FACTORS.
Full Narrative
THE PILOT MADE A LOW, SLOW PASS OVER THE LANDING AREA. AFTER COMPLETING THE PASS, HE MADE A SHARP BANKED TURN TO THE LEFT AT LOW AIRSPEED, AND THE AIRPLANE STALLED AND CRASHED. NO PREIMPACT MECHANICAL PROBLEM WAS FOUND THAT WOULD HAVE RESULTED IN THE ACCIDENT. A TOXICOLOGY CHECK OF THE PLT'S BLOOD SHOWED A LOW LEVEL OF ETHANOL, BUT NO ETHANOL WAS FOUND IN HIS URINE; THE AMOUNT OF BLOOD/ETHANOL DUE TO PUTREFACTION WAS NOT VERIFIED. THE AIRPLANE WAS LOADED WITH 2 OCCUPANTS, A DOG, 73 LBS OF GROCERIES, AND A 50 LB SACK OF FEED ON EACH WING STRUT, BUT THE INVESTIGATION DID NOT VERIFY THE WEIGHT/DISTRIBUTION. THE PASSENGER REPORTED THAT THE AIRPLANE ENCOUNTERED WIND GUSTS AND TURBULENCE.
Flight
Event TypeAccident
Event Time09:30 AKDT
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-18
Tail NumberN10PC
Aircraft CategoryAir
DamageSubstantial
OperatorLynn M Castle
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-B2B · Reciprocating · 150
Seats2
People & Injuries
Injury Summary2 injuries (1 fatality, 1 serious injury)
Fatal1
Serious1
Minor0
Uninjured0
Total2
Crew 1Age 48 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind110° @ 15 kt, gusting 20 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point66 F / 39 C
Altimeter30.00 inHg
Weather SourceWIT