As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: R1 DOOR EXTERIOR EMERGENCY LIGHT ASSEMBLY COVERED BY THE AMERICAN FLIGHT SYMBOL. AIRCRAFT WENT THROUGH MANY INSPECTION WITHOUT ANYONE NOTICING THE ERROR. AIRCRAFT WAS REPAINTED DURING LIVERY VISIT. LIGHT ASSEMBLY UNMASKED AND OPERTIONAL CHECK GOOD. PER AMM B737-NG 33-51-00-710-801.