What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Aircraft was at FL350 approx 20 minutes, when the cabin warning sounded, cabin altitude was at 11,000 feet and climbing. Crew initiated descent. Cabin altitude continued to climb to approximately 20,000 feet. Passenger oxygen deployed. Crew noticed right pressurization pack duct pressure showed zero pressure. Aircraft unable to hold cabin pressure on one pack and there was a loud pressurization squeal during descent at the forward entry door. Swa found right engine prsov valve inop. Aircraft was maintenance ferried to phx where the right engine prsov valve was replaced, two bleed lines were replaced and the outflow valve was replaced. Forward entry door seal was reseated. Aircraft was ops checked and returned to service. Closed.
As the FAA filed it
(-23) AIRCRAFT WAS AT FL350 APPROX 20 MINUTES, WHEN THE CABIN WARNING SOUNDED, CABIN ALTITUDE WAS AT 11,000 FEET AND CLIMBING. CREW INITIATED DESCENT. CABIN ALTITUDE CONTINUED TO CLIMB TO APPROXIMATELY 20,000 FEET. PASSENGER OXYGEN DEPLOYED. CREW NOTICED RIGHT PRESSURIZATION PACK DUCT PRESSURE SHOWED ZERO PRESSURE. AIRCRAFT UNABLE TO HOLD CABIN PRESSURE ON ONE PACK AND THERE WAS A LOUD PRESSURIZATION SQUEAL DURING DESCENT AT THE FORWARD ENTRY DOOR. SWA FOUND RIGHT ENGINE PRSOV VALVE INOP. AIRCRAFT WAS MAINTENANCE FERRIED TO PHX WHERE THE RIGHT ENGINE PRSOV VALVE WAS REPLACED, TWO BLEED LINES WERE REPLACED AND THE OUTFLOW VALVE WAS REPLACED. FORWARD ENTRY DOOR SEAL WAS RESEATED. AIRCRAFT WAS OPS CHECKED AND RETURNED TO SERVICE. CLOSED.