What was found
MAIN DOOR: REPEAT WRITE UP #2. SEE PREVIOUS DATED 01/19/2025. DURING THE ARRIVAL AT 5000 FEET AND A CABIN PSID OF 2.3, ANOTHER LOUD SQUEAL STARTED TO HUM FROM SOMEWHERE ON THE MAIN CABIN DOOR. THE SQUEAL/HUM STARTED AT 2.3 PSID AND GRADUALLY WAINED BELOW 2.1 PSID. REFER TO THE NEXT WRITE UP, 52-10-08, MAIN DOOR VENT, TO SEE IF THERE IS A CORRELATION. CORRECTIVE ACTION: REPLACED MED SEAL. OPS CHECK GOOD. IAW CE-680A AMM 52-10-35