What was found
FLIGHT #5877. THE PASSENGER SIGN CIRCUIT BREAKER TRIPPED DURING TAXI OUT OF DAY, AIRCRAFT RETURNED TO THE GATE. REPLACED SHORTED PASSENGER SERVICE UNIT AT SEAT 7AB.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT #5877. THE PASSENGER SIGN CIRCUIT BREAKER TRIPPED DURING TAXI OUT OF DAY, AIRCRAFT RETURNED TO THE GATE. REPLACED SHORTED PASSENGER SERVICE UNIT AT SEAT 7AB.