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NTSB Report
May 24, 1992 · Cessna T188C · N4547J
Cross City, FL
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 24, 1992
Injury Outcomes
1 injury (1 minor injury)
Location
Cross City, FL
Aircraft
Cessna T188C
Tail Number
N4547J
Operator
Calderon Moyano Sergio
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
MIA92LA126
FLIGHT EXPERIENCED ENGINE FAILURE SHORTLY AFTER SWITCHING TO THE CHEMICAL HOPPER WHICH HAD BEEN CONVERTED TO A FUEL TANK FOR THE FERRY FLIGHT. THE ENGINE COULD NOT BE RESTARTED AND A FORCED LANDING WAS MADE IN A WOODED AREA. POST CRASH OPERATION OF THE ENGINE REVEALED THE ENGINE WOULD NOT RUN ON THE ENGINE DRIVEN FUEL PUMP. AFTER THE PUMP WAS CHANGED THE ENGINE OPERATED NORMALLY. THE ENGINE DRIVEN PUMP WAS FOUND TO CONTAIN BLACK RUBBER PARTICLE CONTAMINATION UNDER THE BYPASS VALVE AND TO BE WORN WHICH PREVENTED PRESSURE BUILD UP. THE HOPPER TANK LINE ENTERED THE AIRFRAME FUEL SYSTEM AFTER THE ELECTRIC BOOST PUMP AND THE ONLY SOURCE OF HOPPER TANK FUEL PRESSURE WAS THE ENGINE DRIVEN PUMP.
NTSB Probable Cause
THE INADEQUATE INSPECTION FOR CONTAMINATION OF THE AIRCRAFT FUEL SYSTEM AFTER MODIFICATION RESULTING IN FAILURE OF THE ENGINE DRIVEN FUEL PUMP DUE TO CONTAMINATION. CONTRIBUTING TO THE ACCIDENT WAS THE IMPROPER MODIFICATION OF THE FUEL SYSTEM WHICH RESULTED IN THE HOPPER FUEL TANK NOT HAVING A SECOND SOURCE OF FUEL PUMPING.
Full Narrative
FLIGHT EXPERIENCED ENGINE FAILURE SHORTLY AFTER SWITCHING TO THE CHEMICAL HOPPER WHICH HAD BEEN CONVERTED TO A FUEL TANK FOR THE FERRY FLIGHT. THE ENGINE COULD NOT BE RESTARTED AND A FORCED LANDING WAS MADE IN A WOODED AREA. POST CRASH OPERATION OF THE ENGINE REVEALED THE ENGINE WOULD NOT RUN ON THE ENGINE DRIVEN FUEL PUMP. AFTER THE PUMP WAS CHANGED THE ENGINE OPERATED NORMALLY. THE ENGINE DRIVEN PUMP WAS FOUND TO CONTAIN BLACK RUBBER PARTICLE CONTAMINATION UNDER THE BYPASS VALVE AND TO BE WORN WHICH PREVENTED PRESSURE BUILD UP. THE HOPPER TANK LINE ENTERED THE AIRFRAME FUEL SYSTEM AFTER THE ELECTRIC BOOST PUMP AND THE ONLY SOURCE OF HOPPER TANK FUEL PRESSURE WAS THE ENGINE DRIVEN PUMP.
Flight
Event TypeAccident
Event Time10:45 EDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna T188C
Tail NumberN4547J
Aircraft CategoryAir
DamageSubstantial
OperatorCalderon Moyano Sergio
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · TSIO-520-T · Reciprocating · 310
Seats1
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 56 · None
Conditions
ConditionsVMC
LightDaylight
Wind320° @ 5 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point55
Altimeter29.00 inHg
Observation Time14:52
Weather SourceWFAC