As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE FINAL APPROACH IN TO KSAN AIRCRAFT LOST NAVIGATIONS SYSTEM CAUSING A MISSED APPROACH , AUTO PILOT FAILED AND SOME OF THE NAVIGATION SYSTEMS WERE NOT PROPERLY OPERATING , SO THE CREW ASK FOR A DIVERSION AND DECLARED AND EMERGENCY AND LANDED AIRCRAFT AT KPSP WITH NO OTHER INCIDENTS OR ISSUES