What was found
(CAN) ON DESCENT AT 8500 FT, LT WING LOCKER DOOR BUCKLED UP IN MIDDLE APPROX 4-5 INCHES, THEN CAME LOOSE FROM DOOR PIN AND POPPED OPEN & STARTED FLAPPING. AIRCRAFT SPEED WAS REDUCED TO 140 KTS & AIRCRAFT LANDING WAS UNEVENTFUL. DETERMINED THAT WING LOCKER WAS PRESSURIZING IN FLT & WAS INCREASED ON THE DESCENT BY SPEED. IT WAS FOUND THAT THERE WERE SOME HOLES IN THE FORWARD END OF LOCKER & SEALEANT ON THE LOCKER SKIN SEAMES HAD DETERIORATED AND FALLEN OUT ALLOWING HIGH PRESSURE AIR FROM THE FLAP WELL TO ENTER THE LOCKER AREA. HOLES WERE PLUGGED & SEAMS RESEALED AND THE LOCKER WAS PRESSURE CHECKED FOR LEAKAGE AND FOUND SERVICEABLE.