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NTSB Report
December 23, 1993 · Piper PA-18 · N7121P
Port Alsworth, AK
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
December 23, 1993
Injury Outcomes
1 injury (1 minor injury)
Location
Port Alsworth, AK
Aircraft
Piper PA-18
Tail Number
N7121P
Operator
Alsworth John H
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
ANC94LA027
DURING AN APPROACH TO AN ICE FROZEN LAKE, THE PLANE, PILOTED BY A NON-CERTIFICATED PILOT, COLLIDED WITH A TREE. IN AUGUST 1971, THE PILOT'S APPLICATION FOR A MEDICAL CERTIFICATE WAS DENIED BY THE FEDERAL AIR SURGEON. THE PILOT REPORTED THAT FOR THE PAST TWENTY YEARS HE HAD BEEN TAKING AN ANTI-SEIZURE MEDICATION ON A DAILY BASIS WITHOUT ANY RECURRING PROBLEMS.
NTSB Probable Cause
THE PILOT-IN-COMMAND NOT MAINTAINING THE PROPER CLEARANCE FROM THE TERRAIN DURING THE APPROACH.
Full Narrative
On December 23, 1993, at 1500 Alaska Standard Time, a wheel-ski equipped Piper PA-18 airplane, N7121P, collided with a tree and crashed during an approach to a frozen lake located about 3 miles southeast of Port Alsworth, Alaska. The non certificated pilot-in-command, the sole occupant, received minor injuries, and the airplane was substantially damaged. The local personal flight, operating under 14 CFR Part 91, departed Port Alsworth at 1430 and the intended destination was the frozen lake. Visual meteorological conditions existed, and no flight plan was filed. In August of 1971, the pilot's application for a medical certificate was denied by the Federal Air Surgeon. The pilot reported that for the past twenty years he had been taking an anti-seizure medication on a daily basis without any recurring problems.
Flight
Event TypeAccident
Event Time10:00 AKST
Nearest Airport0nm
Runway0
Runway Length0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-18
Tail NumberN7121P
Aircraft CategoryAir
DamageSubstantial
OperatorAlsworth John H
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360 · Reciprocating · 180
Seats2
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 41 · None
Conditions
ConditionsVMC
LightDaylight
Wind90°
Visibility40 sm
CeilingBroken clouds 5000 ft
Temperature / Dew Point36 C / 0 C
Altimeter0
Weather SourcePILO