As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FAULT LIGHT CAME ON WHEN APU STARTER ATTEMPT AFTER LANDING. DID NOT EXTINGUISH UNTIL RIGHT ENG SHUT DOWN. GROUNDED - YES. (RESOLVED ON W/O: 1972189 TASKCARD: N/R-00004 ) REMOVED & REPLACED APU START CONVERT UNIT REF AMM 49-41-61. NO FAULTS FOUND. C/N 25051949 REMOVED. CONFIG CHANGES REVERSED. THIS CLEARS MEL 49-11-01. SEAMC ASHRAF NOTIFIED.