Amateur-built PIETENPOL AIRCAMPER accident near Skull Valley, Arizona, July 10, 1991
On July 10, 1991, a amateur-built PIETENPOL AIRCAMPER, registered N64661, was destroyed in an accident near Skull Valley, Arizona. It was a personal flight under general aviation rules (Part 91). 1 person was killed. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
THE PILOT INADVERTENTLY INDUCING A STALL SPIN CONDITION WITH INSUFFICIENT ALTITUDE TO RECOVER FROM THE SPIN.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 10, 1991
- Place
- Skull Valley, Arizona · map
- Type
- Accident
- Injuries
- 1 person was killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built PIETENPOL AIRCAMPER PIETENPOL
- Registration
- N64661 · no longer on the register · serial 20047
- Damage
- Destroyed
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT TOOK OFF FROM AN AIRPORT AND REPORTEDLY TURNED DOWNWIND AT ABOUT 400 FEET AGL. WITNESSES REPORTED THAT THE AIRCRAFT APPEARED TO BE IN A 'STEEP' BANK. THEY SAID THAT THE AIRCRAFT 'APPEARED TO FALL OFF ON THE LEFT WING AND SPIN INTO THE GROUND.' AN FAA AIRWORTHINESS INSPECTOR EXAMINED THE AIRCRAFT ON SCENE AND REPORTED THAT NO DISCREPANCIES COULD BE FOUND THAT WOULD HAVE HAMPERED THE AIRCRAFT'S ABILITY TO FLY AND MAINTAIN ALTITUDE. THE PILOT'S RECENT AERONAUTICAL EXPERIENCE COULD NOT BE DETERMINED. HIS MEDICAL CERTIFICATE WAS EXPIRED.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: commercial pilot
- Ratings: single-engine land
- Flight time: 450 hours in all
- Medical certificate: Class 2 (expired)
- Seat: unk
The aircraft
- Last inspection: inspection type not recorded, January 2, 2000
- Maximum gross weight: 1,100 lb
- Seats: 2
- Landing gear: fixed
- Engine: Corvair HPE (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 350° at 10 knots, gusting 15
- Visibility: 55 statute miles
- Sky: scat at 6,000 ft
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
- Observation at 11:51 pm from PRC, 19 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.