What was found
CABIN HEATER BECAME INOPERATIVE. DURING TROUBLESHOOTING FOUND BALL IN DRAIN VALVE DETERIORATED AND RUSTY. REPLACED DEFECTIVE BALL IN VALVE ASSEMBLY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CABIN HEATER BECAME INOPERATIVE. DURING TROUBLESHOOTING FOUND BALL IN DRAIN VALVE DETERIORATED AND RUSTY. REPLACED DEFECTIVE BALL IN VALVE ASSEMBLY.