ASN Wikibase Occurrence # 360913
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| Date: | Wednesday 19 January 1994 |
| Time: | 19:40 LT |
| Type: |  British Aerospace ATP |
| Owner/operator: | United Feeder Services |
| Registration: | N857AW |
| MSN: | 2034 |
| Year of manufacture: | 1991 |
| Total airframe hrs: | 4687 hours |
| Engine model: | P&W PW126A |
| Fatalities: | Fatalities: 0 / Occupants: 33 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | South Bend, IN -
 United States of America
|
| Phase: | Standing |
| Nature: | Unknown |
| Departure airport: | (KSBN) |
| Chicago, IL (KORD) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
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.
Probable Cause: an internal failure of the auxiliary power unit.
Accident investigation:
 |
|
Sources:
NTSB CHI94IA066
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 12:34 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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