# N197D: 1981 Denight Ronald A 100D2, registration cancelled 2006-05-03

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 3, 2006
- Status when cancelled: Triennial form not returned
- Airframe: [Denight Ronald A 100D2](https://openairdocs.org/model/denight-ronald-a-100d2) (registry code 05613L5)
- Engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505)
- Data sheets: [TCDS E-223](https://openairdocs.org/tcds/E-223) (OpenAirDocs)
- Serial number: PL4-1
- Year built: 1981
- Type of aircraft: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Experimental, amateur built
- Airworthiness date: September 8, 1981
- Certificate issued: May 28, 1981
- Last registry action: May 20, 2003
- Mode S code: A18277
- Owner when cancelled: [Denight Ronald A](https://openairdocs.org/faa-owner/DENIGHT%20RONALD%20A)
- Location: [Northglenn, CO](https://openairdocs.org/faa-place/CO/Northglenn)
- Owner type: Individual
- Owner's area on the map: 39.8975° N, 104.9439° W: Placed by OpenAirDocs at the center of ZIP code 80233, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N197D
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=197D
- Page: https://openairdocs.org/deregistered/N197D-2006-05-03

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 Denight Ronald A 100D2: https://openairdocs.org/model/denight-ronald-a-100d2.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 DEN05LA141](https://openairdocs.org/ntsb/DEN05LA141), Sep 16, 2005: Denight 100D2 (N197D), Hudson, CO, destroyed, 2 fatal. Probable cause: the pilot's failure to maintain adequate airspeed resulting in an inadvertent stall/spin.

## 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 20050917021139A](https://openairdocs.org/incident/20050917021139A), Sep 17, 2005: Denigh 100D2 (N197D), Hudson, CO, Destroyed, 2 fatal. (-23) On September 16, 2005, approximately 0700 mountain daylight time, a denight 100D2, N197D, registered to and operated by the pilot, was destroyed when it…

## Other aircraft with N197D

- [Registered now](https://openairdocs.org/aircraft/N197D): David B Ford RV10, S/N 40738, built 2017

---
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.