As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - FLT 5043 - PRESSURIZATION DIFFERENTIAL PRESSURE INDICATOR INOPERATIVE. CABIN ALTITUDE AND CABIN RATE OF CHANGE ERRATIC. UNABLE TO DETERMINE DIFFERENTIAL PRESSURE IN CABIN. ITEM DEFERRED IAW MEL 21-5-2. MAINTENANCE REMOVED AND REPLACED CABIN PRESSURE CONTROLLER IAW SAAB MM. OPERATIONAL CHECK WAS SATISFACTORY AND AIRCRAFT WAS RETURNED TO SERVICE. (M)