As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO - CABIN PRESSURIZATION LOSS REPORTED IN FLIGHT. AIRCRAFT CONTINUED TO STATION WITHOUT INCIDENT. MAINTENANCE INSPECTED PRESSURIZATION SYSTEM FOR DEFECTS. FOUND NOSE LANDING GEAR WEIGHT ON WHEELS (SQUAT) SWITCH STICKING. CLEANED AND LUBED SQUAT SWITCH. PRESSURIZATION SYSTEM OPERATIONAL CHECK NORMAL ON GROUND. AIRCRAFT RETURNED TO SERVICE. (M)