What was found
DURING DESCENT ACRID ODOR DETECTED IN COCKPIT AND REPORTED BY FLT ATTENDANTS AS WELL IN CABIN. PRIOR TO ODOR THE CABIN AIRFLOW CHANGED TO A SIGNIFICANTLY LESS INTENSITY. RT RECIRC FAN WAS TURNED OFF. LT DME C/B ALSO WAS NOTED POPPED. THE ODOR DISSIPATED RAPIDLY. FOUND LT DME WITH STRONG BURNT ODOR. REPLACED LT DME TRANSCEIVER BORROWED FROM AMERICAN AIRLINES S/N 113 MFG P/N 622-4540-001. OPS CK NORMAL RESET RT RECIRC FAN AND OPERATED BOTH PACKS ALL CK NORMAL.