As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTS CABIN OVERHEAD LIGHTS FLICKERING ON AND OFF THROUGH ENTIRE CABIN. PULLED C/BS ON P-33 PANEL TO STOP FLASHING RETURNED TO JFK FOR REPAIRS AFTER ISOLATED PROX BOX FAULTS CARD 06. REPLACED PSEU. OPS OK. FND SW S 527 P19 BROKEN. INSPECTED RT GEN FEEDER. ALL OK. INSPECTED WIRE ABOVE L1 DOOR PER BOEING . CKS OK. REPLACED PRESS SW S 527. TAXI A/C. UNABLE TO DUPLICATE ITEM.