# N448DM: 1978 Gulfstream American AA-5B, registration cancelled 2012-09-24

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 24, 2012
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Gulfstream American AA-5B](https://openairdocs.org/model/gulfstream-american-aa-5b) (registry code 3970106)
- Engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514)
- Data sheets: [TCDS A16EA](https://openairdocs.org/tcds/A16EA) (OpenAirDocs)
- Serial number: AA5B0976
- Year built: 1978
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal, utility
- Airworthiness date: October 26, 1978
- Certificate issued: June 15, 2005
- Last registry action: September 16, 2008
- Mode S code: A568AC
- Owner when cancelled: [Holtrop David P](https://openairdocs.org/faa-owner/HOLTROP%20DAVID%20P)
- Location: [Sheboygan, WI](https://openairdocs.org/faa-place/WI/Sheboygan)
- Owner type: Individual
- Owner's area on the map: 43.7103° N, 87.7331° W: Placed by OpenAirDocs at the center of ZIP code 53081, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N448DM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=448DM
- Page: https://openairdocs.org/deregistered/N448DM-2012-09-24

From the FAA registry file of October 28, 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 Gulfstream American AA-5B: https://openairdocs.org/model/gulfstream-american-aa-5b.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 CEN09FA340](https://openairdocs.org/ntsb/CEN09FA340), Jun 7, 2009: Gulfstream American AA-5B (N448DM), Humbird, WI, substantial damage, 2 fatal. Probable cause: The pilot's decision to attempt a visual flight rules flight into an area of known instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation.

## 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 20090607009669A](https://openairdocs.org/incident/20090607009669A), Jun 7, 2009: Amrgen AA5B (N448DM), Humbird, WI, Destroyed, 2 fatal. (-23) A gumman AA-5B "tiger" aircraft, registration N448DM, crashed in a wooded, rural area approximately 5.25 miles west of Humbird, WI, with two occupants…

## Other aircraft with N448DM

- [Registered now](https://openairdocs.org/aircraft/N448DM): DJI AGRAS T50, S/N 1581F6BUB236U001004U

---
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.