What was found
BIL - FLIGHT 2416 - WHILE EN ROUTE AT FL250, THE GEAR DOORS CYCLED OPEN AND CLOSED. THE GEAR DOOR LIGHT, THE RED UNLOCK LIGHT AND THE LIGHT IN THE GEAR HANDLE WAS ILLUMINATED. MAINTENANCE INTERROGATED PSEU HISTORY. NO FAULTS WERE FOUND. THE GEAR WAS RETRACTED AND IT WAS NOTED THAT THE LEFT MAIN LANDING GEAR DOOR WAS NOT FAIRED. ADJUSTMENTS TO THE DOOR WERE MADE AND OPERATIONAL CHECKS WERE PERFORMED. THE CHECKS WERE GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE.