MIAMI, FL, USA
N9674
BOEING 747-123
SHORTLY AFTER DEPARTURE THE CREW NOTED SMOKE IN THE CABIN AND THE COCKPIT. THE CAPTAIN DECLARED AN EMERGENCY AND LANDED BACK AT THE DEPARTURE AIRPORT. HE THEN DIRECTED AN EMERGENCY EVACUATION. DURING THE EVACUATION SEVERAL EMERGENCY SLIDES FAILED TO DEPLOY AND SEVERAL PASSENGERS RECEIVED INJURIES. THE SLIDES FAILED DUE TO IMPROPER PACKING, MAINTENANCE, AND IMPROPER PARTS. THE SMOKE THAT WAS OBSERVED CAME FROM THE #4 ENGINE #3 BEARING LABYRINTH SEAL THAT LEAKED DUE TO THE FAILURE OF THE EVC CONTROLLER.
Source: NTSB Aviation Accident Database
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