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NTSB Report
August 27, 1992 · Boeing 737-200 · N206AU
Miami, FL
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 27, 1992
Injury Outcomes
3 injuries (1 serious injury, 2 minor injuries), 92 uninjured
Location
Miami, FL
Aircraft
Boeing 737-200
Tail Number
N206AU
Operator
Carnival Airlines
Injuries
Serious
NTSB Number
MIA92LA167
WHILE AWAITING TAKEOFF CLEARANCE, THE CAPT STATED THAT HE OBSERVED A FLASH OF LIGHT & SMELLED SMOKE. HE INITIATED THE PAX EVACUATION CHECKLIST & ALL PAX EVACUATED THE ACFT. EXAM OF THE ACFT BY COMPANY MAINT PERSONNEL REVEALED THAT THE NO. 1 GENERATOR CONTROL UNIT (GCU) LOCATED BEHIND THE FIRST OFFICER'S SEAT EXPERIENCED INTERNAL FAILURE. THE GCU WAS REMOVED FOR FURTHER EXAMINATION. EXAM OF THE UNIT REVEALED THAT A DIODE LOCATED INSIDE A TRANSFORMER WAS SHORTED, WHICH OVERHEATED THE TRANSFORMER & PRODUCED THE SMOKE. ACCORDING TO BOEING, THERE HAVE BEEN 12 SIMILAR OCCURRENCES.
NTSB Probable Cause
FAILURE (SHORT) OF A DIODE LOCATED INSIDE A TRANSFORMER WHICH IS LOCATED IN THE NO. 1 GENERATOR CONTROL UNIT.
Full Narrative
WHILE AWAITING TAKEOFF CLEARANCE, THE CAPT STATED THAT HE OBSERVED A FLASH OF LIGHT & SMELLED SMOKE. HE INITIATED THE PAX EVACUATION CHECKLIST & ALL PAX EVACUATED THE ACFT. EXAM OF THE ACFT BY COMPANY MAINT PERSONNEL REVEALED THAT THE NO. 1 GENERATOR CONTROL UNIT (GCU) LOCATED BEHIND THE FIRST OFFICER'S SEAT EXPERIENCED INTERNAL FAILURE. THE GCU WAS REMOVED FOR FURTHER EXAMINATION. EXAM OF THE UNIT REVEALED THAT A DIODE LOCATED INSIDE A TRANSFORMER WAS SHORTED, WHICH OVERHEATED THE TRANSFORMER & PRODUCED THE SMOKE. ACCORDING TO BOEING, THERE HAVE BEEN 12 SIMILAR OCCURRENCES.
Flight
Event TypeAccident
Event Time20:10 EDT
Nearest AirportMiami International (0nm)
Runway0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing 737-200
Tail NumberN206AU
Aircraft CategoryAir
OperatorCarnival Airlines
Operating RulePart 121
Engines2
Engine TypeTurbojet
Engine DetailsP&W · JT8D-9A · Turbojet · 14000
People & Injuries
Injury Summary3 injuries (1 serious injury, 2 minor injuries), 92 uninjured
Fatal0
Serious1
Minor2
Uninjured92
Total95
Crew 1Age 53 · First Class
Conditions
ConditionsVMC
LightDusk
Wind60° @ 9 kt
Visibility7 sm
CeilingNone
Altimeter30.00 inHg
Observation Time23:50
Weather SourceWFAC