# NTSB CHI91MA220: Aerospace ATR-42-300, N425TE, Peoria, IL, July 17, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Major investigation · Final report
- Date: July 17, 1991, 16:15 local (21:15 UTC)
- Place: Peoria, IL
- Coordinates: 40.629989, -89.690124 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.6300&lon=-89.6901&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 19 uninjured
- Status: Completed, report July 14, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15195
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI91MA220
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15195/pdf
- Page: https://openairdocs.org/ntsb/CHI91MA220

## Probable cause

INADEQUATE AIRCRAFT EQUIPMENT COMPONENT (FAILED BOLT), AND INSUFFICIENT INSPECTION STANDARDS PERTAINING TO THE FAILED BOLT.  A FACTOR RELATED TO THE ACCIDENT IS INACCURATE MAINTENANCE RECORD KEEPING RELATING TO OIL CONSUMPTION.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - mech failure/malf, approach - vfr pattern - final approach
  - 1 engine
  - maintenance,recordkeeping - inaccurate, company maintenance personnel (contributing factor)
  - acft/equip,inadequate aircraft component, manufacturer (cause)
  - insufficient standards/requirements, manufacturer (cause)
  - turbine assembly,turbine wheel - foreign object damage
  - engine assembly,other - failure,total
- Fire, landing - roll

## Analysis

THE AIRCRAFT EXPERIENCED A FAILURE OF THE NUMBER 1 (LEFT ENGINE) AND SUBSEQUENT NACELLE FIRE WHILE ON SHORT FINAL FOR LANDING.  PILOT MADE UNEVENTFUL LANDING, AND CONDUCTED EMERGENCY EVACUATION ON THE RUNWAY.  THE CAPTAIN FIRED BOTH FIRE BOTTLES BEFORE EXITING THE AIRCRAFT.  AIRPORT FIRE DEPARTMENT EXTINGUISHED THE FIRE.  INVESTIGATION REVEALED FAILURE OF THE POWER TURBINE DUE TO FOREIGN OBJECT DAMAGE RESULTING FROM A FAILED TURBINE CASE BOLT.

## Aircraft

- Registration: [N425TE](https://openairdocs.org/deregistered/N425TE-1999-08-12), registration cancelled 1999-08-12, S/N 125 (OpenAirDocs)
- Reported make and model: AEROSPACE ATR-42-300
- Registry model: [Aerospatiale/Aeritalia ATR 42-300](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300) (registry code 8680920) (OpenAirDocs)
- Category: Airplane
- Serial number: 125
- Engines: P&W PW-120-13S-63 2000 horsepower turbo prop
- Damage: Substantial damage
- Fire: Both
- Flight: Part 121
- Operator: Trans States Airlines, doing business as Trans World Express
- Registered owner: Mcdonnell Douglas Finance Corp
- Airworthiness certificate: Standard, Transport
- Last inspection: Continuous airworthiness, June 27, 1992, 114 hours before
- Departed: STL, ST. LOUIS, MO
- Flight plan: IFR
- Airport: PIA, Greater Peoria, runway 13, 8,000 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 7,831 total, 2,390 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 10 knots
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 90 °F, dew point 63 °F
- Altimeter: 30.00 inHg

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19910717034359A](https://openairdocs.org/incident/19910717034359A), Jul 17, 1991: Aerosp ATR42300, Peoria, IL, Substantial damage. Engine failure and fire on short final. Turbine failure blew off tailpipe causing fire. Case support bolts failed.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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