What was found
DURING FLIGHT, UPPER CABIN DOOR OPENED. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND FORWARD LATCH PIN BROKEN AT BELLCRANK ATTACH POINT. REPLACED LATCH PIN AND ASSIST SPRINGS AND RELEASED THE AIRCRAFT BACK TO SERVICE. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING FLIGHT, UPPER CABIN DOOR OPENED. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND FORWARD LATCH PIN BROKEN AT BELLCRANK ATTACH POINT. REPLACED LATCH PIN AND ASSIST SPRINGS AND RELEASED THE AIRCRAFT BACK TO SERVICE. (X)