As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH, FLIGHT CREW REPORTED A FAILURE OF THE MODULAR AVIONICS UNIT 3A. DECLARED EMERGENCY AT 24,000, PERMANENT LOSS OF FMS 2 A/P CHANNEL 2 GPS 2. THE AIRCRAFT WAS GROUNDED. MAINTENANCE REPLACED PROCESSOR MODULE PER AMM TASK 31-41-04-000-801A. ACCOMPLISHED NAVIGATIONAL DATA BASE LOAD PER JOB CARD 43T22034001.