# N4SW: 1962 Douglas DC-7, registration cancelled 1980-07-28

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 28, 1980
- Status when cancelled: Valid registration
- Airframe: [Douglas DC-7](https://openairdocs.org/model/douglas-dc-7) (registry code 3021802)
- Data sheets: [TCDS 4A10](https://openairdocs.org/tcds/4A10) (OpenAirDocs)
- Serial number: 44287
- Year built: 1962
- Type of aircraft: Fixed wing multi engine
- Certificate issued: September 19, 1973
- Mode S code: A4A994
- Owner when cancelled: [Butler Acft Co](https://openairdocs.org/faa-owner/BUTLER%20ACFT%20CO)
- Location: [Redmond, OR](https://openairdocs.org/faa-place/OR/Redmond)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4SW
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4SW
- Page: https://openairdocs.org/deregistered/N4SW-1980-07-28

From the FAA registry file of October 27, 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 Douglas DC-7: https://openairdocs.org/model/douglas-dc-7.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 SEA79AA058](https://openairdocs.org/ntsb/SEA79AA058), Sep 14, 1979: Douglas DC-7C (N4SW), Klamath Falls, OR, destroyed, 12 fatal

## 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 19790914036439A](https://openairdocs.org/incident/19790914036439A), Sep 14, 1979: Doug DC7C (N4SW), Klamath Falls, OR, No damage, 10 fatal. Aircraft departed on night flight. Hit a tree on a ridge 24 miles from the airport of departure.

## Other aircraft with N4SW

- [Registered now](https://openairdocs.org/aircraft/N4SW): Cessna 172M, S/N 17263276, built 1974

---
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.