As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERMITTENT INOPERATIVE. REPLACED CAVITY OSCILLATOR V101 DUE TO LOW POWER OUT. REPAIRED. REPLACED PHOTOCELL V301 DUE TO WEAK REPLY LIGHT. REPAIRED. ALIGNED RECEIVER. ADJUSTED FREQUENCY AND PULSE WIDTH. CLEANED CONTACTS ON ALL WAFER SWITCHES. BENCH CHECK GOOD.