As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WILL NOT PRESSURIZE. AFT OUTFLOW VLV SHOWS FULL OPEN ON SYNOPTIC PAGE. UPON RETURN FOUND THAT CB G14 OF P310 WAS NOT PULLED & COLLARD IAW MEL 3231S. MEL REAPPLIED CORRECTLY. FURTHER TROUBLSHOOTING 4262026 FOUND LT ASCPC WITH MULTI FAULTS. R & R LT ASCPC IAW AMM 36-11-20-401. OPERATIONS NORMAL.