As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 0200 - IAH - WHILE OPERATING THE APU IN FLIGHT, WITH THE LEFT GENERATOR PLACARDED INOPERATIVE, THE APU LOW OIL PRESSURE LIGHT ILLUMINATED. THE APU WAS SHUT DOWN AND THE FLIGHT WAS COMPLETED WITHOUT ANY FURTHER PROBLEM. MAINTENANCE CHECKED THE APU OIL LEVEL AND FOUND IT TO BE FULL. THE APU WAS STARTED AND RAN WITHOUT FAULT. THE FAILURE COULD NOT BE DUPLICATED. (M)