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NTSB Report
February 22, 1985 · Piper PA-601P · N60817
Bentonville, AR
Overview
Report Status
Preliminary report
Event Type
Accident
Date
February 22, 1985
Injury Outcomes
1 injury (1 minor injury)
Location
Bentonville, AR
Aircraft
Piper PA-601P
Tail Number
N60817
Operator
Robson S Walton
Injuries
Minor
Aircraft Damage
Destroyed
NTSB Number
FTW85FA123
THE ACFT CONTACTED LIVESTOCK, A FENCE AND THE GEAR COLLAPSED DURING A FORCED LANDING FOLLOWING A LOSS OF PWR ON THE RIGHT ENG. THE PLT REPORTED THAT AFTER HE FEATHERED THE RIGHT ENG PROP AND LOWERED THE GEAR HE NOTED THE AUX HYDRAULIC SYSTEM PRESSURE GAGE WAS INDICATING ZERO. POST ACCIDENT INSPECTION DISCLOSED EVIDENCE OF AN OIL LEAK FROM THE LEFT LOWER SECTION OF THE RIGHT ENG. TESTS REVEALED THE LEAK ORIGINATED FROM THE OIL COOLER PRESSURE LINE WHICH FAILED DUE TO SEVERE CORROSION OF THE WIRE BRAID AND DEFORMATION OF THE INNER COVER. TESTING OF THE AUX HYDRAULIC PRESSURE PUMP DISCLOSED THE 35 AMPERE CURRENT LIMITER WAS BLOWN AND 40 AMPERES WERE REQUIRED TO DRIVE THE PUMP MOTOR.
Full Narrative
THE ACFT CONTACTED LIVESTOCK, A FENCE AND THE GEAR COLLAPSED DURING A FORCED LANDING FOLLOWING A LOSS OF PWR ON THE RIGHT ENG. THE PLT REPORTED THAT AFTER HE FEATHERED THE RIGHT ENG PROP AND LOWERED THE GEAR HE NOTED THE AUX HYDRAULIC SYSTEM PRESSURE GAGE WAS INDICATING ZERO. POST ACCIDENT INSPECTION DISCLOSED EVIDENCE OF AN OIL LEAK FROM THE LEFT LOWER SECTION OF THE RIGHT ENG. TESTS REVEALED THE LEAK ORIGINATED FROM THE OIL COOLER PRESSURE LINE WHICH FAILED DUE TO SEVERE CORROSION OF THE WIRE BRAID AND DEFORMATION OF THE INNER COVER. TESTING OF THE AUX HYDRAULIC PRESSURE PUMP DISCLOSED THE 35 AMPERE CURRENT LIMITER WAS BLOWN AND 40 AMPERES WERE REQUIRED TO DRIVE THE PUMP MOTOR.
Flight
Event TypeAccident
Event Time07:40 CST
Nearest AirportBentonville Muni (3nm SE)
Runway35
Runway Length4090 ft
Runway Width65 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-601P
Tail NumberN60817
Aircraft CategoryAir
DamageDestroyed
OperatorRobson S Walton
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsLycoming · IO-540-S1A5 · Reciprocating · 290
Seats6
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 37 · Third Class
Conditions
ConditionsVMC
LightDawn
Wind170° @ 8 kt
Visibility3 sm
CeilingOvercast 1300 ft
Temperature / Dew Point61 F / 59
Altimeter30.00 inHg
Observation Time13:27
Weather SourceWFAC