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NTSB Report
August 9, 1987 · Beech B90 · N425K
Milwaukee, WI
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 9, 1987
Injury Outcomes
No injuries (4 uninjured)
Location
Milwaukee, WI
Aircraft
Beech B90
Tail Number
N425K
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI87FA191
ON DEPARTURE THE CREW IDENTIFIED AN IN FLIGHT FIRE. AN IMMEDIATE SHUTDOWN OF ELECTRICAL, ENVIRONMENTAL AND PRESSURIZATION SYSTEMS WAS INITIATED AND A RETURN WAS MADE TO THE AIRPORT WITH A SUCCESSFUL LANDING. THE FIRE WAS DISCOVERED TO HAVE OCCURRED IN THE AREA OF THE PRESSURIZATION SUPERCHARGER AND HAD SUBSTANTIALLY DAMAGED THE AIRCRAFT. THE CREW AND TWO PASSENGERS EVACUATED SUCCESSFULLY WITHOUT INJURY. THE SUPERCHARGER HOSE COLLAPSED FROM DETERIORATION. OIL SPILLAGE DURING SERVICING CONTAMINATED THE HOSE.
Full Narrative
ON DEPARTURE THE CREW IDENTIFIED AN IN FLIGHT FIRE. AN IMMEDIATE SHUTDOWN OF ELECTRICAL, ENVIRONMENTAL AND PRESSURIZATION SYSTEMS WAS INITIATED AND A RETURN WAS MADE TO THE AIRPORT WITH A SUCCESSFUL LANDING. THE FIRE WAS DISCOVERED TO HAVE OCCURRED IN THE AREA OF THE PRESSURIZATION SUPERCHARGER AND HAD SUBSTANTIALLY DAMAGED THE AIRCRAFT. THE CREW AND TWO PASSENGERS EVACUATED SUCCESSFULLY WITHOUT INJURY. THE SUPERCHARGER HOSE COLLAPSED FROM DETERIORATION. OIL SPILLAGE DURING SERVICING CONTAMINATED THE HOSE.
Flight
Event TypeAccident
Event Time13:40 CDT
Nearest AirportGeneral Mitchell (0nm N)
Runway1L
Runway Length9690 ft
Runway Width200 ft
Flight Plan FiledIFR
Aircraft FireIflt
Aircraft ExplosionNo
Aircraft
AircraftBeech B90
Tail NumberN425K
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 135
Engines2
Engine TypeTurboprop
Engine DetailsP&W · PT6A-20 · Turboprop · 550
Seats7
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 24 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind300° @ 14 kt
Visibility6 sm
CeilingOvercast 1400 ft
Temperature / Dew Point64 F
Altimeter29.00 inHg
Observation Time18:50
Weather SourceWFAC