What was found
SECOND KNOB WILL NOT TURN INTERNAL NUMBER. REPLACED ONE KNOB SHAFT FROM SPARE. ALSO REPLACED V101 CAVITY OSCILLATOR THAT WAS WEAK. REPAIRED PROBLEM. BENCH CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SECOND KNOB WILL NOT TURN INTERNAL NUMBER. REPLACED ONE KNOB SHAFT FROM SPARE. ALSO REPLACED V101 CAVITY OSCILLATOR THAT WAS WEAK. REPAIRED PROBLEM. BENCH CHECK GOOD.