As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE APU AUTO SHUT DOWN ON SHORT FINAL INTO EWR. THE APU SHUT DOWN WAS ACCOMPANIED BY LOW OIL QUANTITY INDICATION ON EICAS. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE APU LEAKING OIL AT LOW OIL PRESSURE SWITCH. THE SWITCH WAS REPLACED AND THE APU WAS SERVICED WITH OIL, OPERATIONAL CHECK WAS GOOD.