What was found
PRIOR TO 80 KNOTS RECEIVED A “ACM O’HEAT” ANNUNCIATION. PERFORMED VOLTAGE AND CONTINUITY CHECK OF ACM OVERHEAT TEMPERATURE SENSOR (ST012) IAW CE560XL AMM 21-51-00. NO DEFECTS NOTED. PERFORMED VISUAL INSPECTION OF ECU EXHAUST DUST, ACM AND ECU STRUCTURE, AND BLEED AIR TUBING FOR CRACKS AND DEFORMATIONS IAW CE560XL AMM 21-51-00. NO DEFECTS NOTED GAINED ACCESS TO L BLEED AIR OVER HEAT TEMPERATURE SENSOR (ST017), TAIL TEMPERATURE SENSOR (TT0OL), AND TEMPERATURE SENSOR (ST021) LOCATED ON L BLEED AIR TUBING COMING FROM THE L PRECOOLER IAW AMM 36-11-01. PERFORMED OPS CHECK OF PRECOOLER DOOR ACTUATION IAW AMM 36-11-00. NO DEFECTS NOTED. PERFORMED RESISTANCE CHECK OF SENSOR (TT00L) AND VISUAL EXAMINATIONS OF ALL SENSORS IAW AMM 36-11-01. NO DEFECTS NOTED. REINSTALLED ALL PANELS REMOVED TO GAIN ACCESS !AW AMM 36-11-01. NO DEFECTS NOTED. SWAPPED POSITIONS OF LEFT BL-LEVEL FLOW CONTROL VALVE AND RIGHT BL-LEVEL FLOW CONTROL VALVE FOR TROUBLESHOOTING PURPOSES. IAW AMM 21-11-00. NO DEFECTS NOTED. EVALUATION FLIGHT REQUIRED TO DETERMINE IF ISSUE REMAINS ON LEFT HAND SIDE OR TRANSITIONS TO RIGHT HAND SIDE.