Individually Owned: 150,657
Corporate Owned: 137,281
Michiana Regional Airport
Aircraft Accident/Incident Report
South Bend, Indiana 46628
Wednesday, January 19, 1994 17:40 EST
NTSB Narrative Summary Released at Completion of Accident
AN AUTO SHUTDOWN OF THE AUXILIARY POWER UNIT (APU) OCCURRED. THERE WERE NO INDICATIONS OF A PROBLEM WITH THE APU SO THE CAPTAIN ATTEMPTED A RESTART TO NO AVAIL. THE COCKPIT CREW WAS THEN INFORMED THAT THE APU WAS ON FIRE. THE CAPTAIN BLEW THE APU FIRE BOTTLE AND THE AIRPLANE WAS EVACUATED WITHOUT FURTHER INCIDENT. EXAMINATION OF THE APU REVEALED A HOLE THROUGH THE TURBINE NOZZLE VANE PLATFORM WHICH RESULTED IN THERMAL FAILURE OF THE TURBINE WHEEL BLADES.
NTSB Probable Cause Narrative
an internal failure of the auxiliary power unit.
Event Information
| Type of Event | Incident |
| Event Date | 1/19/1994 |
| Event Day of the Week | Wednesday |
| Time of Event | 1740 |
| Event Time Zone | Eastern Standard Time |
| Event City | SOUTH BEND |
| Event State | INDIANA |
| Event Country | -- |
| Zipcode of the event site | 46628 |
| Event Date Year | 1994 |
| Event Date Month | 1 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | MICHIANA REGIONAL |
| Event Location Nearest Airport ID | SBN |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 799 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1740 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | SBN |
| Elevation of weather observation facility | 799 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | EST |
| Lighting Conditions | Dusk |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Unknown |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 4 |
| Air Temperature at event time (in degrees celsius) | -19 |
| Dew Point at event time (in degress fahrenheit) | -18 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 8 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Light |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 33 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 5001 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jan 20 1994 12:00AM |
| NTSB Notification Time | 645 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 6 2000 10:23AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N857AW |
| NTSB Number | CHI94IA066 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | None |
| Aircraft Fire | Ground |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | BRITISH AEROSPACE |
| Aircraft Model | ATP |
| Aircraft Series Identifier | ATP |
| Aircraft Serial Number | 2034 |
| Certified Max Gross Weight | 50550 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 68 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Jan 19 1994 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 4687 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | AIR WISCONSIN |
| Aircraft Owner Street Address | 203 CHALLENGER DR. |
| Aircraft Owner City | APPLETON |
| Aircraft Owner State | WI |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 54915 |
| Operator is an individual? | -- |
| Operator Name | UNITED FEEDER SERVICES |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 9275 GENAIRE DR. |
| Operator City | ST. LOUIS |
| Operator State | MO |
| Operator Country | |
| Operator Zip code | 63134 |
| Operator Code | UFS |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | Scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | SBN |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 0 |
| Departure Time Zone | |
| Destination Same as Local Flt | -- |
| Destination Airport Code | ORD |
| Destination City | CHICAGO |
| Destination State | IL |
| Destination Country | |
| Specific Phase of Flight | Standing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:30AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 0 |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |