As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ADJUSTMENT KNOBS FOR FREQUENCY CHANGE DON'T WORK PROPERLY. PERFORMED PRELIMINARY INSPECTION. CLEANED WAFERS, FOUND PHOTOCELL (V101) NOT DIMMING. REPLACED V101 PHOTOCELL. REPAIRED. RAISED HEADER (P101) AND APPLIED HUMISEAL. ALSO REPLACED 28V BULB (DS301). REPAIRED. BENCH CHECK GOOD.