REDDING, CA, USA
N35479
PIPER PA-31-350
WHILE TAXIING TO TAKEOFF, SMOKE WAS NOTED IN THE COCKPIT AREA, SHORTLY AFTER THE PLT ACTIVATED THE HEATER IGNITION SWITCH. THE PLT IMMEDIATELY STOPPED & SECURED THE ACFT & ASSISTED THE PASSENGERS IN DEPLANING. AN EXAM OF THE JANITROL HEATER, MODEL B4050, REVEALED THE AFT SECTION OF THE TUBE ASSEMBLY HAD CRACKED; THE INNER TUBE ASSEMBLY WAS CORRODED & A B-NUT WAS 'FINGER TIGHT.' ALSO, THERE WAS FIRE DAMAGE IN THE NOSE SECTION OF THE ACFT, NEAR THE HEATER. THE DIRECTOR OF MAINTENANCE SAID THAT AD-82-07-03, INSPECTION OF THE HEATER TUBE ASSEMBLY, WAS COMPLIED WITH ON 11/14/83.
Source: NTSB Aviation Accident Database
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