As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER LEVELING RECEIVED MASTER CAUTION/DOOR WITH "AFT ENTRY" ILLUMINATED ON DOOR PANEL. COMPLIED WITH QRH PROCEDURE AND LIGHTS WENT OUT SHORTLY AFTER FA PRESSED DOWN ON 2R DOOR. CORRECTIVE ACTION: OPS CHECK AFT ENTRY DOOR 2R PSEU IAW B737-900 FIM 52-10. NO FAULTS FOUND, OPS NML. (5776456).