NTSB Identification: MIA83FA208.
The docket is stored on NTSB microfiche number 23024.
Accident occurred Friday, August 19, 1983 in PERRINE, FL
Aircraft: CONDOR II, registration: N103HL
Injuries: 1 Serious.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE PLT WAS ON A FLT TO TEST A NEW LIQUID COOLED ENG & ITS RADIATOR SIZE & LOCATION. ON PREVIOUS FLTS, HE HAD NOTED INADEQUATE COOLING. COMPANY PERSONNEL HAD MOVED THE RADIATOR TO IMPROVED ITS EFFICIENCY. ON THE PREVIOUS FLT, THE PLT NOTED THAT THE TEMP GAGE HAD FAILED. HE LANDED ON THE COMPANY'S GRASS STRIP, & WITH ASSISTANCE, DRAINED THE COOLANT SYS, CHANGED THE GAGE & REPORTEDLY RESERVICED THE SYS WITH COOLANT THAT HAD BEEN DRAINED & SAVED. THE PLT STATED THAT PRIOR TO TAKEOFF, HE OPENED THE RADIATOR CAP & HAD SEEN COOLANT IN THE NECK OF THE UPPER SURGE TANK. AFTER TAKING OFF, HE NOTED AN EXCESSIVELY HI COOLANT TEMP. HE REDUCED THE POWER TO PREVENT HEAT DAMAGE TO THE ENG & MANEUVERED TO LAND. ACCORDING TO WITNESSES, THE ACFT SHUDDERED, PITCHED NOSE DOWN & CRASHED. AN EXAM OF THE ACFT REVEALED NO PREIMPACT FAILURE. ONLY ABOUT 2 CUPS OF COOLANT WAS FOUND IN THE SYS. THE COOLING SYS HELD ABOUT 1 GAL OF COOLANT. A 1 GAL CONTAINER USED TO DRAIN & SERVICE THE ACFT WAS FOUND ABOUT 5/8 FUL OF COOLANT.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

AIRSPEED..NOT MAINTAINED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

STALL..INADVERTENT..PILOT IN COMMAND



Contributing Factors

COOLING SYSTEM..OTHER


Contributing Factors

PREFLIGHT PLANNING/PREPARATION..INADEQUATE..PILOT IN COMMAND


Contributing Factors

FLUID,WATER..LOW LEVEL


Contributing Factors

COOLING SYSTEM..OVERTEMPERATURE

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