As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH NR 1 AUTOPILOT IN COMMAND AND IAS HOLD ENGAGED AT FL 250, AIRCRAFT BEGAN A RAPID DESCENT AND NR 1 AUTOPILOT DISCONNECTED. AIRCRAFT LEVELED OFF AT FL 237 AND FLIGHT CONTINUED WITH MANUAL CONTROL. FLIGHT LANDED AT MCO WITHOUT INCIDENT. REPLACED ACCELEROMETER AND PITCH COMPUTER. NR 1 AUTOPILOT MEL.