# Accident 20080907844599A: Amrgen AA5A, Mack, CO, September 7, 2008

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 7, 2008, 14:15 local time
- Place: Mack, CO
- Damage: Destroyed
- Phase of flight: Low Level Operations
- Operating rules: General operating rules (Part 91)
- Location: 39.5647° N, 108.9131° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=39.5647&lon=-108.9131&mi=10
- Aircraft: N26930, a cancelled registration (https://openairdocs.org/deregistered/N26930-2013-08-19) (OpenAirDocs)
- Registry model: Gulfstream American AA-5A (registry code 3970104, https://openairdocs.org/model/gulfstream-american-aa-5a) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: AMRGEN AA5A
- People aboard: 2
- Fatal injuries: 2
- Pilot flight hours: 3,500 total, 0 in this make and model, 0 in the last 90 days
- NTSB investigation: [NTSB DEN08FA152](https://openairdocs.org/ntsb/DEN08FA152) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20080907844599A

## Narrative

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

(-23) ON SEPT 7, 2008 AT APPROX 1415 MDT, N26930 A GULFSTREAM AA-5A CHEETAH CRASHED WHILE MANEUVERING THROUGH A LEFT TURN AT SLOW SPEED IN A CANYON NEAR BAXSTER PASS, 20 MILES NW OF MACK, CO.  THE TWO OCCUPANTS ON BOARD WERE KILLED, THE AIRCRAFT WAS DESTROYED.  ACCORDING TO EVIDENCE FOUND AT THE SCENE AND REPORTED WITNESS STATEMENTS THE AIRCRAFT WAS PERFORMING PIPELINE PATROL  DURING THE EXIT OF A CONTINUED LEFT TURN (OPPOSITE THE DIRECTION OF FLIGHT) THE AIRCRAFT STALLED AND CRASHED AT A STEEP DEGREE DOWN ANGLE.  IT WAS REPORTED THAT THE PILOT WAS NOT FAMILIAR WITH THE AREA OF THE PIPELINE, DIRECTION OF ROUTE, AND MOUNTAIN FLYING.  IT WAS DETERMINED THAT THE ROUTE OF THE FLIGHT FOLLOWING THE PIPE HAD BEEN OVERSHOT MISSING THE TURN LEFT, DURING THE CORRECTION THE PILOT LOST CONTROL.  WEATHER WAS NOT A FACTOR AND NO OBVIOUS MECHANICAL PROBLEMS WITH THE AIRCRAFT WERE NOTED ON SITE.  HUMAN FACTORS COULD HAVE PLAYED A MAJOR ROLE, PILOT HAD BEEN INVOLVED IN A PREVIOUS ACCIDENT 4 DAYS PRIOR TO NEW MEXICO, AFTER WORKING A 17 HOUR DAY IN A COMPANY AIRCRAFT, AND THEN FLYING A UN-FAMILIAR ROUTE IN CO.  UNDERWOOD AERIAL PATROL HIRED THE PIC ON SEPTEMBER 2, 2008.

## 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 DEN08FA152](https://openairdocs.org/ntsb/DEN08FA152), Sep 7, 2008: Gulfstream American AA-5A (N26930), Baxter Pass, CO, destroyed, 2 fatal. Probable cause: The pilot's failure to maintain adequate airspeed during a turn, resulting in an unrecoverable aerodynamic stall.

## Other reports on N26930 (1)

Matched to the same aircraft by N-number and date.

- [Accident 19801227078309A](https://openairdocs.org/incident/19801227078309A), Dec 27, 1980: Grumav AA5A (N26930), Murray, KY, Substantial damage. Wing struck tree during intentional landing in farm field.

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.

---
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.