As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOSS OF CABIN PRESSURIZATION AT FL270. EMERGENCY DESCENT WAS INITIATED AND AIRCRAFT DIVERTED. DONNED OXYGEN MASKS AND CABIN OXYGEN MASKS WERE DEPLOYED. LANDING WAS UNEVENTFUL. MAINTENANCE REPLACED THE RIGHT MAIN LANDING GEAR SQUAT SWITCH. A SUCCESSFUL OPERATIONAL CHECK FLIGHT WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.