# N6840U: Mooney M20C, registration cancelled 1972-02-01

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 1, 1972
- Status when cancelled: Valid registration
- Airframe: [Mooney M20C](https://openairdocs.org/model/mooney-m20c) (registry code 5870208)
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3) (OpenAirDocs)
- Serial number: 2545
- Type of aircraft: Fixed wing single engine
- Certificate issued: September 17, 1964
- Mode S code: A9147E
- Owner when cancelled: [Del Valle Nicolas](https://openairdocs.org/faa-owner/DEL%20VALLE%20NICOLAS)
- Location: Santurce, RQ
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N6840U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6840U
- Page: https://openairdocs.org/deregistered/N6840U-1972-02-01

From the FAA registry file of October 31, 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 Mooney M20C: https://openairdocs.org/model/mooney-m20c.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 MIA66F0154](https://openairdocs.org/ntsb/MIA66F0154), Aug 13, 1965: Mooney M21 (N6840U), Arecibo, PR, substantial damage

## Other aircraft with N6840U

- [Cancelled 1988-08-16](https://openairdocs.org/deregistered/N6840U-1988-08-16): Cessna 402C, S/N 402C0486. N-number assigned, not yet registered

---
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.