As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED AN APU PRESS CAUTION MSG. CREW DIVERTED TO RIC LANDING WITHOUT INCIDENT. MAINTENANCE USING THE MANUFACTURER MAINTENANCE MANUALS INSPECTED AND FOUND APU OIL LEVEL LOW. MAINTENANCE SERVICED THE OIL. CHECKS WERE MADE USING THE AIRCRAFT MAINTENANCE MANUALS AND AIRCRAFT WAS RELEASED.