# N503MT: 2001 Bell 407, registration cancelled 2010-02-09

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 9, 2010
- Status when cancelled: Valid registration
- Airframe: [Bell 407](https://openairdocs.org/model/bell-407) (registry code 1182206)
- Engine: [Allison 250-C47 series](https://openairdocs.org/engine/allison-250-c47-series) (registry code 03029)
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW), [TCDS E1GL](https://openairdocs.org/tcds/E1GL) (OpenAirDocs)
- Serial number: 53498
- Year built: 2001
- Type of aircraft: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Standard, normal
- Airworthiness date: October 31, 2001
- Certificate issued: January 29, 2004
- Last registry action: September 8, 2008
- Mode S code: A6463A
- Owner when cancelled: [Avn Air LLC](https://openairdocs.org/faa-owner/AVN%20AIR%20LLC)
- Location: [Danbury, CT](https://openairdocs.org/faa-place/CT/Danbury)
- Owner type: Corporation
- Owner's area on the map: 41.3778° N, 73.4575° W: Placed by OpenAirDocs at the center of ZIP code 06810, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N503MT
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=503MT
- Page: https://openairdocs.org/deregistered/N503MT-2010-02-09

From the FAA registry file of November 3, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Bell 407: https://openairdocs.org/model/bell-407.md

## NTSB investigations (1)

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.

- [NTSB CHI04MA182](https://openairdocs.org/ntsb/CHI04MA182), Jul 13, 2004: Bell 407 (N503MT), Newberry, SC, destroyed, 4 fatal. Probable cause: The pilot's failure to maintain terrain clearance as a result of fog conditions. A contributing factor was inadequate weather and dispatch information relayed to the pilot.

## FAA accident and incident reports (1)

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.

- [Accident 20040713013449A](https://openairdocs.org/incident/20040713013449A), Jul 13, 2004: Bell 407 (N503MT), Newberry, SC, Destroyed, 4 fatal. (-23) On July 13, 2004, at 0535 eastern daylight time, a Bell 407 helicopter, N503MT, operated by med-trans corporation, was on an emergency medical services…

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