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NTSB Report
February 15, 1989 · Piper PA28-140 · N95286
Beaver Marsh, OR
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 15, 1989
Injury Outcomes
No injuries (2 uninjured)
Location
Beaver Marsh, OR
Aircraft
Piper PA28-140
Tail Number
N95286
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA89LA049
DURING CRUISE FLT, THE ENG MISFIRED AND BEGAN OPERATING ON 3 CYLINDERS. DUE TO ROUGH TERRAIN BTW HIMSELF AND A KNOWN SUITABLE AIRPORT, THE PLT ELECTED TO MAKE A PRECAUTIONARY LANDING AT A SMALL SNOW-COVERED AIRSTRIP. THE ACFT NOSED OVER ON LANDING IN 4 FT OF SNOW. INSPECTION OF THE ENGINE REVEALED THE #3 CYLINDER EXHAUST VALVE HAD FAILED.
NTSB Probable Cause
AN LOSS OF ENGINE POWER DUE TO A FAILED EXHAUST VALVE. CONTRIBUTING TO THE ACCIDENT WAS THE SNOW COVERED TERRAIN ON WHICH A PRECAUTIONARY LANDING WAS MADE.
Full Narrative
DURING CRUISE FLT, THE ENG MISFIRED AND BEGAN OPERATING ON 3 CYLINDERS. DUE TO ROUGH TERRAIN BTW HIMSELF AND A KNOWN SUITABLE AIRPORT, THE PLT ELECTED TO MAKE A PRECAUTIONARY LANDING AT A SMALL SNOW-COVERED AIRSTRIP. THE ACFT NOSED OVER ON LANDING IN 4 FT OF SNOW. INSPECTION OF THE ENGINE REVEALED THE #3 CYLINDER EXHAUST VALVE HAD FAILED.
Flight
Event TypeAccident
Event Time12:20 PST
Nearest AirportBeaver Marsh State (0nm N)
Runway18
Runway Length4500 ft
Runway Width60 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA28-140
Tail NumberN95286
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-E2A · Reciprocating · 150
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 38 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind170° @ 10 kt
Visibility45 sm
CeilingOvercast 20000 ft
Temperature / Dew Point32 C / 18 C
Altimeter30.00 inHg
Observation Time19:55
Weather SourceWFAC