What was found
REPEAT L 10TH DUCT WARNING MESSAGE ON CLIMB OUT. PLEASE REVIEW HISTORY AND T/S NEXT OVERNIGHTMCI TYPE: TROUBLESHOOTING PRIORITY 1 (FLIGHT 5452 FILED CLOSED)OCT 24, 2023 STATION: RDD--REMOVED AND REPLACED HEATING ELEMENT SENSOR AT A17WK PER CRJ-200 AMM 36-21-00 AND OPS CHECK GOOD AND INSPECTED LEFT 10TH STAGE BLEED LOOPS AND FOUND LOOPS TO BE TOUGHING/RUBBING EACH OTHER AT SEVERAL PLACE, REPOSITION LOOPS AS NEEDED AND PERFORMED OPERATIONAL TEST OF BLEED-AIR TEST PER CRJ-200 AMM 36-21-10-710-801 AND OPS CHECK GOOD. PERFORMED GVI INSPECTION OF 10TH STAGE BLEED-AIR DUCTING PER CRJ-200 AMM 36-11-31-210-801 AND NO LEAKS NOTED. PERFORMED ENGINE RUN CHECK PER CRJ-200 AMM 71-00-00 AND OPS CHECK GOOD. A/C OK TO CONTINUE SERVICE