# N2621T: 1999 Seltzer William I CHALLENGER II CWS, registration cancelled 2017-05-26

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 26, 2017
- Status when cancelled: Valid registration
- Airframe: [Seltzer William I CHALLENGER II CWS](https://openairdocs.org/model/seltzer-william-i-challenger-ii-cws) (registry code 05903QN)
- Engine: [Rotax 503 DCDI](https://openairdocs.org/engine/rotax-503-dcdi) (registry code 55566)
- Serial number: CH2-0199-CW-1838
- Year built: 1999
- Type of aircraft: Fixed wing single engine
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: January 18, 2010
- Certificate issued: December 4, 2015
- Last registry action: December 4, 2015
- Mode S code: A288F8
- Owner when cancelled: [Roff Allan W](https://openairdocs.org/faa-owner/ROFF%20ALLAN%20W)
- Location: [Sacramento, CA](https://openairdocs.org/faa-place/CA/Sacramento)
- Owner type: Individual
- Owner's area on the map: 38.4958° N, 121.5303° W: Placed by OpenAirDocs at the center of ZIP code 95831, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N2621T
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=2621T
- Page: https://openairdocs.org/deregistered/N2621T-2017-05-26

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 Seltzer William I CHALLENGER II CWS: https://openairdocs.org/model/seltzer-william-i-challenger-ii-cws.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 WPR17FA077](https://openairdocs.org/ntsb/WPR17FA077), Mar 11, 2017: Challenger II (N2621T), Oakdale, CA, substantial damage, 1 fatal. Probable cause: The pilot's failure to attain a proper touchdown point and his subsequent loss of directional control during landing for reasons that could not be determined because postaccident examination of the…

## 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 20170311002039A](https://openairdocs.org/incident/20170311002039A), Mar 11, 2017: Seltzer William I CHALLENGER II CWS (N2621T), Oakdale, CA, Destroyed, 1 fatal. Pilot lost control on landing to rwy 10 at O27 and ran into parked vehicle. Aircraft was destroyed in post-accident fire. Pilot succumbed to injuries sustained…

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.