What was found
HF 1 RADIO RECEPTION AND TRANSMISSION PROBLEM AT ALL STATIONS HF 1 TEST ON GROUND OK BUT FAILED IN FLIGHT ALSO #2 HF INOP REF LOG 7738933. REQUESTED MEL 2311B FOR BOTH HF INOP OK TO CONTINUE PER MEL 2311B, BOTH HF''S INOP DISPATCH DESK: 80 NAME: ES DATE: 22-APR-24- NOC DESK: 700 NAME: MK DATE: 22-APR-24- TOMC APPROVED. TRANSCEIVER, HF OFF 29-2311-9-0010 1171 ON 29-2311-9-0010 8538 TRANSCEIVER, HF OFF 29-2311-9-0010 1171 ON 0000 PERFORMED FIM 23-11 TASK 806. NO FAULTS NOTED ON #2 RADIO. #1 WOULD NOT TRANSMIT. REPLACED #1 TRANSCEIVER PER MM REF. 23-11-21. BOTH HF RADIOS OPERATE NORMALLY AT THIS TIME. MEL REMOVED.