What was found
ATC TRANSPONDER INOPERATIVE. REPLACED Q415 TRANSISTOR, R477 RESISTOR AND V101 CAVITY OSCILLATOR. REPAIRED. ADJUSTED FREQUENCY AND PULSE WIDTH. CLEANED CODE SELECTORS. BENCH CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ATC TRANSPONDER INOPERATIVE. REPLACED Q415 TRANSISTOR, R477 RESISTOR AND V101 CAVITY OSCILLATOR. REPAIRED. ADJUSTED FREQUENCY AND PULSE WIDTH. CLEANED CODE SELECTORS. BENCH CHECK GOOD.