Incident Description
During the flight, the flightcrew experienced an inflight opening of the aft baggage door and an inflight separation of the cabin stairway door. No further details regarding the extent of damage or any effects on the flight are provided in the source.
Actions Prior to Flight
Before takeoff, the copilot checked the doors on three occasions because the door warning light was illuminated. Despite these checks, the doors subsequently opened in flight. The captain initiated the flight after opening the cockpit door and checking the forward baggage door. When the captain looked aft at the other doors, he observed nothing noteworthy.
System Operation
The door warning system operated as designed during the event. The system's illumination of the warning light before takeoff prompted the copilot's multiple inspections, but the inflight openings still occurred.
Operator Response
Following the incident, the operator amended their operating procedures to prevent similar occurrences. The specific changes to the procedures are not detailed in the source.