# N765MM: 1991 Akers Douglas RA40 DEFIANT, registration cancelled 2007-11-21

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 21, 2007
- Status when cancelled: Triennial form not returned
- Airframe: [Akers Douglas RA40 DEFIANT](https://openairdocs.org/model/akers-douglas-ra40-defiant) (registry code 056171Q)
- Engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508)
- Data sheets: [TCDS E-274](https://openairdocs.org/tcds/E-274) (OpenAirDocs)
- Serial number: 162
- Year built: 1991
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 2, 2004
- Certificate issued: August 27, 2004
- Last registry action: October 16, 2007
- Mode S code: AA553A
- Owner when cancelled: [Marshall Michael P](https://openairdocs.org/faa-owner/MARSHALL%20MICHAEL%20P)
- Location: [Lubbock, TX](https://openairdocs.org/faa-place/TX/Lubbock)
- Owner type: Individual
- Owner's area on the map: 33.5615° N, 102.0857° W: Placed by OpenAirDocs at the center of ZIP code 79407, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N765MM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=765MM
- Page: https://openairdocs.org/deregistered/N765MM-2007-11-21

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 Akers Douglas RA40 DEFIANT: https://openairdocs.org/model/akers-douglas-ra40-defiant.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 DFW05LA043](https://openairdocs.org/ntsb/DFW05LA043), Dec 17, 2004: Akers Douglas RA40 Defiant (N765MM), Slaton, TX, destroyed, 1 fatal. Probable cause: The pilot's failure to maintain aircraft control. Contributing factors were the opening of the canopy in-flight and the pilot's diverted attention.

## 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 20041217030779A](https://openairdocs.org/incident/20041217030779A), Dec 17, 2004: Akers RA40DEFIANT (N765MM), Slaton, TX, Destroyed, 1 fatal. (-23) On December 17, 2004 at approximately 1340 CST, the pilot of an aker Douglas RA-40, N765MM, departed Slaton airport runway 36 heading in a northerly…

## Other aircraft with N765MM

- [Registered now](https://openairdocs.org/aircraft/N765MM): Honda HA-420, S/N 42000259, built 2023

---
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.