What was found
SMOKE SMELL IN FLIGHT T/S AND FOUND REC FAN #1 15HG TO BE POPPING C/B AND CAUSING AMBER FAN MSG ON A/C PAGE. ORDERED FAN M&E 31-2126-9-0001 FROM ORT. FOUND #1 RECIRC FAN 15 HG LOCKED UP AND CHECK VALVE SPRING WAS B ROKEN. REMOVED AND REPLACED FAN AND CHECK VALVE REF AMM 21-21-51 FAN MSG ON A/C PAGE IS GONE. OPS CHECK GOOD. ADD FAULT: N ROTABLE PARTS CHANGE WAS INDICATED - TT # 1167098 SN OFF 8126 TT # 1164504 SN OFF 9315 IPC REFERENCE # IPC REFERENCE # FAN, RECIRCULAT OFF 31-2126-9-9001 9126 ON 31-2126-9-9001 1882 VALVE, AIR COND OFF 31-2121-9-9005 9315 ON 31-2121-9-9005 6115 FWD PIT AFT LH BULKHEAD PANEL NEEDS INSTALLED INSTALLED FWD PIT AFT RH WALL REF AMM 25-00-00.