What was found
NR 1 & 2 VHF COMM INTERMITTENT. INSPECTED NR 1 VHF TRANSCEIVER & VHF COMM TRANSMITTER, FOUND NO DEFECTS. PERFORMED MANY RADIO CHECKS ON GROUND. SYSTEM OPS CHECK GOOD IAW A300 MM REF 23-00-00. DURING FURTHER TROUBLESHOOTING FOUND RADIO AMPLIFIER TO BE WORKING INTERMITTENTLY. REMOVED AND REPLACED AMPLIFIER AS REQUIRED. REMOVED AND REPLACED NR 2 VHF COMM TRANSCEIVER AS REQUIRED IAW A300 MM REF 23-00-00. OPS CHECK GOOD. REMOVED AND REPLACED RADIO AMPLIFIER AS REQUIRED IAW A300 MM REF 23-51-19. ALL VHF RADIOS, OPS CHECK GOOD ON GROUND. ALL VHF RADIOS, VHF NR 1, VHF NR 2 OPS CHECK GOOD ON GROUND IAW A300 MM REF 23-51-19. NO FURTHER DEFECTS AT THIS TIME.