What was found
WEATHER RADAR SYSTEM INOP - NAV WX RADAR DOES NOT DISPLAY TILT OR ANY RETURNS AND THERE IS A THU MP FROM NOSE WITH RDR ON. COMPLIED WITH MEL DISPATCH DESK: 33 DATE: 07-FEB-19- APPROVED FOR MEL 3441A COMPLIED WITH MEL ON WXR BITE TEST GOT NO DISPLAY PATTERNS NOR AUDIO , NO MESSAGE ON ND EITHER DURING TEST , JUST THE SCANNER MOVEMENT AND AUDIO CLICKING ON SPEAKERS REGARDLESS WHETHER SWITCH FOR ATT HEADING ON CAPT OR ON 3.ALSO PFR CLEAN WITH NO MESSAGES ON SYSTEM. TROUBLE SHOOTING DATA ON RADAR 1 SHOWS NO FAULTS, REMOVED AND REPLACED WEATHER RADAR ANTENNA ASSY. REF AMM 34-41-11. OPS. CKS NO FAULTS ROTABLE PARTS CHANGE WAS INDICATED - TT # 1059484 SN OFF 4695 IPC REFERENCE # 34-41-11-02 PEDESTAL, CANNE OFF 31-3417-9-0001 0695 ON 31-3417-9-0001 6567