# N6440Z: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 1
- Last cancelled: April 29, 2013
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6440Z
- Page: https://openairdocs.org/aircraft/N6440Z

## Aircraft that carried N6440Z

- [Cancelled 2013-04-29](https://openairdocs.org/deregistered/N6440Z-2013-04-29): Piper PA-25, S/N 25-599, built 1961. Registration expired, pending cancellation. Owner: [Simpson'S Air Service Inc](https://openairdocs.org/faa-owner/SIMPSON'S%20AIR%20SERVICE%20INC), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover)

## NTSB investigations on N6440Z (3)

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 CHI94FA263](https://openairdocs.org/ntsb/CHI94FA263), Aug 2, 1994: Piper PA-25 (N6440Z), Decatur, NE, destroyed, 2 fatal. Probable cause: LOSS OF ENGINE POWER FOR AN UNDETERMINED REASON, AND FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED, WHICH RESULTED IN AN INADVERTENT STALL.
- [NTSB FTW72DQG08](https://openairdocs.org/ntsb/FTW72DQG08), Jul 26, 1971: Piper PA-25 (N6440Z), Tulia, TX, substantial damage
- [NTSB FTW67D0552](https://openairdocs.org/ntsb/FTW67D0552), Apr 5, 1967: Piper PA-25 (N6440Z), Spearman, TX, substantial damage

## FAA accident and incident reports on N6440Z (2)

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 19940802024389A](https://openairdocs.org/incident/19940802024389A), Aug 2, 1994: Piper PA25 (N6440Z), Decatur, NE, Destroyed, 2 fatal. Stalled on climbout. Impacted and burned. No power on impact. No anomalies marijuana herbicide and drugs in pilot.
- [Incident 19820806046479I](https://openairdocs.org/incident/19820806046479I), Aug 6, 1982: Piper PA25235 (N6440Z), Hoxie, KS, Minor damage. Ground fog formed while spraying. Elected to land in farm field. Soft ground collapsed gear.

---
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.