As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING AN INSPECTION, A FUEL STAIN WAS NOTICED ON AN ADF ANTENNA. IT WAS TRACED TO THE HEATER FUEL PUMP. THE PUMP WAS DISASSEMBLED AND A CRACKED DIAPHRAGM WAS FOUND. WHEN THE HEATER WAS RUNNING, FUEL POURED OUT AT THE FUEL PUMP HOUSING. THE DIAPHRAGM LOOKED VERY OLD. THE FUEL PUMP WAS REPLACED.