What was found
AT 41,000 FT. AIRCRAFT CABIN PRESSURE TARTED TO DROP. CREW RETURNED FOR MAINTENANCE WITHOUT INCIDENT. FOUND 1 INCH VERTICAL CRACK ON VALVE SEAT OF SAFETY VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AT 41,000 FT. AIRCRAFT CABIN PRESSURE TARTED TO DROP. CREW RETURNED FOR MAINTENANCE WITHOUT INCIDENT. FOUND 1 INCH VERTICAL CRACK ON VALVE SEAT OF SAFETY VALVE.