# N4978V: Piasecki HRP-1, registration cancelled 1970-06-26

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 26, 1970
- Status when cancelled: Valid registration
- Airframe: [Piasecki HRP-1](https://openairdocs.org/model/piasecki-hrp-1) (registry code 6980202)
- Serial number: 12
- Type of aircraft: Rotorcraft
- Certificate issued: October 25, 1961
- Mode S code: A62D9D
- Owner when cancelled: [Piasecki Aircraft Corp](https://openairdocs.org/faa-owner/PIASECKI%20AIRCRAFT%20CORP)
- Location: [Philadelphia, PA](https://openairdocs.org/faa-place/PA/Philadelphia)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4978V
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4978V
- Page: https://openairdocs.org/deregistered/N4978V-1970-06-26

From the FAA registry file of November 4, 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 Piasecki HRP-1: https://openairdocs.org/model/piasecki-hrp-1.md

## Other aircraft with N4978V

- [Registered now](https://openairdocs.org/aircraft/N4978V): Cessna 172RG, S/N 172RG0442, built 1980

---
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.