# Incident 19970505012409I: Aerosp ATR42300, Chicago, IL, May 5, 1997

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: May 5, 1997, 07:53 local time
- Place: Chicago, IL
- Airport: Chicago-O Hare International
- Damage: Minor damage
- Phase of flight: Ground Taxi, Other Airplane
- Operating rules: Air carrier (Part 121)
- Operator: SIMA
- Location: 41.9769° N, 87.9081° W: Placed by OpenAirDocs at CHICAGO O'HARE INTL (ORD), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.9769&lon=-87.9081&mi=10
- Aircraft: N421MQ, a cancelled registration (https://openairdocs.org/deregistered/N421MQ-1998-06-11) (OpenAirDocs)
- Registry model: Aerospatiale/Aeritalia ATR 42-300 (registry code 8680920, https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300) (OpenAirDocs)
- Reported make and model: AEROSP ATR42300
- People aboard: 2
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19970505012409I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

NARRATIVE: AN AEROSPATIALE ATR-42, AIRCRAFT SERIAL NUMBER 014, REGISTRATION NUMBER N421MQ, OPERATING AS AMERICAN EAGLE FLIGHT 4304, LANDED AT O'HARE AIRPORT, CHICAGO, ILLINOIS AT APPROXIMATELY 0800 CDT 5/05/97. AS THE AIRCRAFT WAS TAXIING TO THE GATE BY TERMINAL "L", THE PILOT REQUESTED EMERGENCY EQUIPMENT, DUE TO A SMOKING LEFT MAIN GEAR. AIRCRAFT WAS STOPPED JUST OFF THE TAXIWAY, PASSENGERS WERE DEPLANED THROUGH THE NORMAL PASSENGER ENTRY DOOR AT THE REAR OF THE AIRCRAFT. EMERGENCY EQUIPMENT RESPONDED, NO EVIDENCE OF FIRE. THERE WAS NO EMERGENCY EVACUATUION OF THIS AIRCRAFT. THE AIRCRAFT'S #1 MAIN TIRE (LT. OUTBD) WAS BLOWN AND THIS SAME AXLE AREA HAD DAMAGE FROM THE WHEEL BEARING COMING APART. THE TIRE HAD EVIDENCE OF HYDRAULIC FLUID THAT CAME FROM THE BRAKE ASSEMBLY. MAINTENANCE HAD TROUBLE REMOVING THE #1 WHEEL DUE TO PARTS BEING WELDED TO THE AXLE. THE INBOARD BEARING (LARGE BEARINGS) WERE DISFIGURED FROM HEAT AND FRICTION. MAINTENANCE CHANGED THE LEFT MAIN LANDING GEAR. SIMA MAINTENANCE DIRECTOR DAN MADDY REPORTED THE WHEEL HAD BEEN INSTALLED FOR 2 MONTHS AND HAD 390 CYCLES (AVERAGE HAS BEEN 900), ALSO SUSPECT A BEARING FAILURE. NOTE: IT WAS ALSO REPORTED THIS IS THE THIRD REPORTED BEARING FAILURE ON AN OUTBD AXLE. THE PMI WAS BRIEFED AND A FOLLOW UP WILL BE DONE BY THE SIMA CMU.

## Other reports on N421MQ (4)

Matched to the same aircraft by N-number and date.

- [Incident 19960521018209I](https://openairdocs.org/incident/19960521018209I), May 21, 1996: Aerosp ATR42300 (N421MQ), Marquette, MI. Narrative: aircraft N421MQ departed mqt on flight 4140 and enroute to cwa the lt. main landing gear unlock indicator showed unsafe indication. The aircraft…
- [Incident 19960403009959I](https://openairdocs.org/incident/19960403009959I), Apr 3, 1996: Aerosp ATR42300 (N421MQ), Traverse City, MI, Minor damage. Narrative: during roll out to taxiway, aircraft lt. MLG failed. Aircraft stopped approximately 600 ft from departure end after sliding 250 ft. investigation…
- [Incident 19900807043099I](https://openairdocs.org/incident/19900807043099I), Aug 7, 1990: Aerosp ATR42300 (N421MQ), Cedar Rapids, IA, Minor damage. Cabin window cracked en route. Pressurization held. Descended and continued to destination.
- [Incident 19880117001109I](https://openairdocs.org/incident/19880117001109I), Jan 17, 1988: Aerosp ATR42300 (N421MQ), Waterloo, IA, Minor damage. Engine fire warning light came on. Returned. Found burnt wires, caused by leaking secondary fuel nozzles.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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