# Incident 19960521018209I: Aerosp ATR42300, Marquette, MI, May 21, 1996

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: May 21, 1996, 14:45 local time
- Place: Marquette, MI
- Airport: Marquette County
- Phase of flight: Normal Cruise
- Operating rules: Air carrier (Part 121)
- Operator: SIMA
- Location: 46.5339° N, 87.5614° W: Placed by OpenAirDocs at Marquette Airport, closed, within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.5339&lon=-87.5614&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/19960521018209I

## Narrative

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

NARRATIVE: AIRCRAFT N421MQ DEPARTED MQT ON FLIGHT 4140 AND ENROUTE TO CWA THE LT. MAIN LANDING GEAR UNLOCK INDICATOR SHOWED UNSAFE INDICATION. THE AIRCRAFT RETURNED TO MQT WITHOUT INCIDENT . INVESTIGATION SHOWED THAT THE CANNON PLUG ON THE LEFT MAIN LANDING GEAR UPLOCK BOX WAS NOT FULLY SEATED AND LOCKED.

## Other reports on N421MQ (4)

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

- [Incident 19970505012409I](https://openairdocs.org/incident/19970505012409I), May 5, 1997: Aerosp ATR42300 (N421MQ), Chicago, IL, Minor damage. Narrative: an aerospatiale ATR-42, aircraft serial number 014, registration number N421MQ, operating as American eagle flight 4304, landed at o'Hare airport,…
- [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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