What was found
DURING CLIMB F/A NOTICED ODOR. ELECTRIC IN NATURE, IN CAB, STRONGER IN AFT. DISSIPATED AFTER A FEW MINUTES, NONE AT CRUISE. HAPPENED AGAIN DURING DESCENT, DISSIPATED BEFORE LANDING. NO SMOKE REPORTED. SIDEWALL LIGHTS WERE OFF. T/S IAW W/C 2120-2367. FOUND POTABLE WATER COMPRESSOR RUNNING CONTINUOUSLY AND OVERHEATING. REPLACED COMPRESSOR AND PRESSURE SWITCH IAW AMM 38-40. COMPRESSOR PLACED ON MEL REF LOG 8892214. PERFORMED ALTERNATE DUCT BURNOUT IAW W/C 4950-2215. REPLACED WATER SEPARATOR BAGS. LEAK CKS GOOD. OK FOR SERVICE.