What was found
NR 2 CABIN PRESS REG FAULT. COULD NOT RESET, CABIN WOULD NOT PRESSURIZE. NOSE RELAY FAILED DURING LAST FLT ON AFS TEST PNL. ATS TRIP OFF. NR 2 CABIN PRESS SYSTEM CHECK OK. REMOVED AND REPLACED PSEU, RELAY 96GB AND 141GB OF FLT/GROUND SYS, OPS OK.