NTSB Identification: MIA86IA066.
The docket is stored on NTSB microfiche number 30873.
Scheduled 14 CFR PAN-AMERICAN WORLD AIRWAYS
Incident occurred Monday, January 27, 1986 in MIAMI, FL
Aircraft: BOEING 747-123, registration: N9674
Injuries: 16 Minor,224 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

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.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

BLEED AIR SYSTEM,VALVE..FAILURE,TOTAL

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

MISC EQPT/FURNISHINGS,SLIDES..FAILURE,PARTIAL

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

MAINTENANCE,INSTALLATION..IMPROPER..COMPANY MAINTENANCE PERSONNEL

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

MAINTENANCE,SERVICE OF AIRCRAFT/EQUIPMENT..IMPROPER..COMPANY MAINTENANCE PERSONNEL


Contributing Factors

FUSELAGE,CREW COMPARTMENT..SMOKE


Contributing Factors

FUSELAGE,CABIN..SMOKE


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