As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE SHORTLY BEFORE DESCENT THE PITCH TRIM FAILURE INDICATION BECAME INVALID. NEVER RETURNED REST OF FLIGHT. DECLARED EMERGENCY. FLIGHT CREW PLACARDED PITCH TRIM POSITION INDICATION ON EICAS. MEL: 27-13 AUTH: 715187 PIC: 715187. RAR H-ACE IAW AMM 27-43-01. OPC GOOD. MEL ITEM RESTORED.