As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI, CREW NOTED APU DOOR OPEN LIGHT ON. CREW ELECTED TO RETURN TO GATE FOR MAINTENANCE TROUBLESHOOTING. AIRCRAFT TAXIED TO GATE WITHOUT FURTHER INCIDENT. MAINTENANCE TROUBLESHOOT DETERMINED THAT APU DOOR CABLE WAS BINDING. CABLE WAS CLEANED AND RELUBRICATED. OPS CHECK PERFORMED WITH NO FAULT FOUND. AIRCRAFT RETURNED TO SERVICE. (W)