What was found
D: RECIRC FAN FAULT STATUS MESSAGE AND ELECTRICAL BURNING SMELL SHORT FINAL. AFTER LANDING FOUND RECIRC FAN 1 CIRCUIT BREAKER POPPED NO MORE BURNING SMELL / C: MEL 21-22-1B / CAT C EXP 12-5-22 / MTC ACTION COMPLIED WITH / VERIFIED #1 RECIRC FAN CAUSING C/B TO TRIP / **** DUE TO ODI EVENT****MANAGEMENT APPROVAL IS REQUIRED VIA MXC SUPERVISOR PRIOR TO RETURN TO SERVICE AFTER CLEARING THIS DEFERRAL. **** / RECIRC FAN FAULT STATUS MESSAGE AND ELECTRICAL BURNING SMELL SHORT FINAL. AFTER LANDING FOUND RECIRC FAN 1 CIRCUIT BREAKER POPPED NO MORE BURNING SMELL NOV 25, 2022 STATION: MSP--VERIFIED IT IS RECIRC FAN ISSUE IN REF TO AMM 21-22-10. DEFERRED RECIRC FAN 1 PER MEL 21-22-1B COMPLIED WITH MX ACTIONS. PLACARDS PLACED. PLEASE REFERENCE AML 1037781 / NOV 27, 2022 STATION: DTW -- REMOVED AND REPLACED #1 RECIRC FAN IN REF WITH CRJ-900 AMM 21-22-10. OPS CHECK GOOD AT THIS TIME.