What was found
15 MIN INTO FLIGHT CREW NOTICED BURNING ODOR COMING FROM COFFEE & WATER POTS. TURNED POWER OFF TO POTS & ODOR CEASED. OPERATED BOTH TANKS FOR 30 MINUTES WITH NO ODOR NOTED. REMOVED REFRESHMENT CENTER PANELS & INSPECTED WIRING & CONNECTIONS BEHIND BAR, NO DEFECTS NOTED. POWER & GROUND AT BOTH TANK CONNECTORS CHECKS GOOD. REINSTALLED PANELS. REMOVED LOWER TANK. INSTALLED CUSTOMER SUPPLIED REPAIRED TANK. OPS CHECK GOOD. REMOVED UPPER TANK AND INSTALLED NEW TANK. CLEANED, RINSED AND FILLED TANK. OPERATED TANK HEATER FOR 15 MINS, OPS CHECK GOOD. LEAK CHECK GOOD. SPIGOT ASSY TRANSFERRED FROM REMOVED TANK AND INSTALLED ON NEW TANK WITH NEW SPIGOT GASKET WORKED REF EQUIPMENT OPERATIONS MANUAL.