What was found
KLAS-KMDT - ON FAE FLIGHT NR 807, AIRCRAFT UNABLE TO PRESSURIZE, AT 20,000 FLT ALT CABIN WAS 10,000 FT. FUEL WAS DUMPED AND AIRCRAFT RETURNED TO KLAS. ON GROUND MAINTENANCE FOUND AFT ENTRY DOOR PRESSURE SEAL LOWER SIDE TORN. SEAL REPAIRED IAW MM 51-30-1. ENGINE RUN WAS ACCOMPLISHED AND A/C PRESSURIZED NORMAL PER 21-31-00. AIRCRAFT RETURNED TO SERVICE. (M)