NTSB Identification: MKC89LA047.
The docket is stored on NTSB microfiche number 37942.
Accident occurred Wednesday, December 28, 1988 in DERBY, KS
Probable Cause Approval Date: 11/28/1989
Aircraft: PIPER PA-28, registration: N2213T
Injuries: 1 Minor,1 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
DRG AN ENG RUN-UP BEFORE A SIMULATED INSTRUMENT FLT, THE CREW NOTICED THE CARB HEAT CONTROL WOULD ONLY MOVE ABOUT 1/2 OF ITS NORMAL TRAVEL. THE PLTS DISCUSSED THE MALFUNCTION & RAN THE ENG FOR ANOTHER 1 TO 2 MIN UNTIL THE OIL TEMP GAUGE INDCD A TEMP RISE. DRG TAKEOFF, THE ACFT WAS CLIMBING THRU ABOUT 400 FT AGL WHEN THE ENG BEGAN TO LOSE POWER. EMERGENCY PROCEDURES WERE FLWD, BUT THERE WAS NO SIGNIFICANT GAIN IN ENG POWER. AN ATTEMPT WAS MADE TO RETURN & LAND; HOWEVER, THE PLTS WERE UNABLE TO REACH THE ARPT. SUBSEQUENTLY, THE ACFT HIT TREETOPS & CRASHED SHORT OF THE RWY. LATER, AN EXAM REVEALED THERE WAS FROZEN WATER ON THE INSIDE OF THE ENG AIR INTAKE FILTER. NO PREIMPACT MECHANICAL MALFUNCTION WAS FOUND, EXCEPT FOR THE RESTRICTED TRAVEL OF THE CARB HEAT CONTROL. METEOROLOGICAL CONDS WERE RPRTD TO BE CONDUCIVE TO CARB ICING.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:OPERATION WITH KNOWN DEFICIENCIES IN EQUIPMENT..PERFORMED..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this accident to be:FUEL SYSTEM,CARBURETOR..ICE
CARBURETOR HEAT CONTROL..MOVEMENT RESTRICTED
WEATHER CONDITION..CARBURETOR ICING CONDITIONS
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