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NTSB Report
January 27, 1986 · Boeing 747-123 · N9674
Miami, FL
Overview
Report Status
Preliminary report
Event Type
Incident
Date
January 27, 1986
Injury Outcomes
16 injuries (16 minor injuries), 224 uninjured
Location
Miami, FL
Aircraft
Boeing 747-123
Tail Number
N9674
Injuries
Minor
NTSB Number
MIA86IA066
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.
Full Narrative
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.
Flight
Event TypeIncident
Event Time14:50 EST
Nearest AirportMaimi Intl (0nm N)
Runway9R
Runway Length13002 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing 747-123
Tail NumberN9674
Aircraft CategoryAir
Operating RulePart 121
Engines4
Engine TypeTurbofan
Engine DetailsP&W · JT9-D-7A · Turbofan · 46150
Seats450
People & Injuries
Injury Summary16 injuries (16 minor injuries), 224 uninjured
Fatal0
Serious0
Minor16
Uninjured224
Total240
Crew 1First Class
Conditions
ConditionsVMC
LightDaylight
Wind270° @ 13 kt, gusting 18 kt
Visibility7 sm
CeilingBroken clouds 4500 ft
Temperature / Dew Point61 F / 45 C
Altimeter29.00 inHg
Observation Time20:00
Weather SourceWFAC