# Accident 20090607009669A: Amrgen AA5B, Humbird, WI, June 7, 2009

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 7, 2009, 17:45 local time
- Place: Humbird, WI
- Damage: Destroyed
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Location: 44.5206° N, 91.0006° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=44.5206&lon=-91.0006&mi=10
- Aircraft: N448DM, a cancelled registration (https://openairdocs.org/deregistered/N448DM-2012-09-24) (OpenAirDocs)
- Registry model: Gulfstream American AA-5B (registry code 3970106, https://openairdocs.org/model/gulfstream-american-aa-5b) (OpenAirDocs)
- Registry engine: Lycoming O&VO-360 series (registry code 41514, https://openairdocs.org/engine/lycoming-o-vo-360-series) (OpenAirDocs)
- Reported make and model: AMRGEN AA5B
- Reported engine: LYC VO360*
- People aboard: 2
- Fatal injuries: 2
- Other injuries: 0
- Pilot flight hours: 269 total, 169 in this make and model, 16 in the last 90 days
- NTSB investigation: [NTSB CEN09FA340](https://openairdocs.org/ntsb/CEN09FA340) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20090607009669A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-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 ONBOARD.  THE PILOT HELD A PRIVATE PILOT CERTIFICATE, WAS THE REGISTERED OWNER OF THE AIRCRAFT, AND WAS OCCUPYING AND SECURED TO THE LEFT FORWARD SEAT.  THE RIGHT SEAT WAS OCCUPIED BY THE PILOT'S SON WHO DID NOT HAVE ANY FAA CERTIFICATES.  BOTH SUSTAINED FATAL INJURIES UPON IMPACT.  THE MAIN IMPACT LOCATION CONTAINED THE ENGINE, MOST OF THE FUSELAGE, INCLUDING THE CABIN AND OCCUPANTS, AND THE LEFT WING.  THE CONDITION OF THE AIRCRAFT AND OTHER EVIDENCE AT THIS LOCATION AS INDICATIVE OF AN IMPACT AT HIGH SPEED, A STEEP ANGLE OF DESCENT, WITH THE ENGINE STILL PRODUCING POWER.  AN IN-FLIGHT BREAKUP OF THE AIRCRAFT WAS EVIDENCED BY THE FOLLOWING SECTIONS OF THE AIRCRAFT LOCATED AWAY FROM THE MAIN IMPACT LOCATION WITH NO DISTURBANCE OF TERRAIN OR FOLIAGE BETWEEN THEM; OUTBOARD SECTION OF THE RIGHT WING APPROXIMATELY 160 YARDS AWAY; RIGHT AILERON, RIGHT FLAP, AND VERTICAL STABILIZER BETWEEN 130 AND 145 YARDS AWAY; THE CANOPY 120 YARDS AWAY; AND THE AFT 1.5 FEET OF EMPENNAGE ALONG WITH THE ELEVATORS APPROXIMATELY 30 YARDS FROM THE MAIN IMPACT LOCATION.  SMALL PIECES OF AIRCRAFT ASSOCIATED WITH THE BREAKUP OF THE MAJOR SECTIONS LISTED WERE SPREAD THROUGHOUT THE AREA ALONG WITH SOME LOOSE PERSONAL BELONGINGS.

## The NTSB's investigation of this event (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.

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. For accidents, the NTSB's own investigation is the fuller record.

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