# N11644: Simpson John T CHALLENGER-II, registration cancelled 1998-05-05

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 5, 1998
- Status when cancelled: Sale reported
- Airframe: [Simpson John T CHALLENGER-II](https://openairdocs.org/model/simpson-john-t-challenger-ii) (registry code 05603QU)
- Serial number: 0395Y1313
- Type of aircraft: Fixed wing single engine
- Last registry action: January 16, 1998
- Mode S code: A0457E
- Location: [Southside, AL](https://openairdocs.org/faa-place/AL/Southside)
- Owner type: Individual
- Owner's area on the map: 33.8908° N, 86.0180° W: Placed by OpenAirDocs at the center of ZIP code 35907, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N11644
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=11644
- Page: https://openairdocs.org/deregistered/N11644-1998-05-05

From the FAA registry file of October 29, 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 Simpson John T CHALLENGER-II: https://openairdocs.org/model/simpson-john-t-challenger-ii.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 ATL98LA018](https://openairdocs.org/ntsb/ATL98LA018), Dec 6, 1997: John T. Simpson Challenger II (N11644), Rainbow City, AL, destroyed, 1 fatal. Probable cause: The pilot's failure to maintain adequate airspeed which resulted in a stall and subsequent impact with the ground. A related factor was the pilot's lack of flying experience.

## 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 19971206037389A](https://openairdocs.org/incident/19971206037389A), Dec 6, 1997: Amtr CHALLENGERII (N11644), Rainbow City, AL, Destroyed, 1 fatal. Aircraft stalled, collided with trees and ground. Pilot had neither permission to fly or formal training in aircraf (-23) on December 6, 1997, at approximately…

## Other aircraft with N11644

- [Cancelled 1977-03-31](https://openairdocs.org/deregistered/N11644-1977-03-31): Bellanca 7GCBC, S/N 343-72. Exported to Canada. Owner: [Medearis Corporation](https://openairdocs.org/faa-owner/MEDEARIS%20CORPORATION)
- [Cancelled 1935-04-01](https://openairdocs.org/deregistered/N11644-1935-04-01): Roxborough Glider Club B-314 GLIDER, S/N 453, built 1931. Owner: [Roxborough Glider Club](https://openairdocs.org/faa-owner/ROXBOROUGH%20GLIDER%20CLUB), [Philadelphia, PA](https://openairdocs.org/faa-place/PA/Philadelphia)

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