Piper PA-12-150 accident near Upper Yantarni, Alaska, September 14, 1992
On September 14, 1992 at about 4:00 am local time, a Piper PA-12-150, registered N2577M, was substantially damaged in an accident near Upper Yantarni, Alaska. It was a personal flight under general aviation rules (Part 91). 2 people had minor injuries. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
PILOT IN COMMAND INADVERTANT ENCOUNTER WITH AERODYNAMIC STALL DURING LOW LEVEL APPROACH TURN. FACTOR AFFECTING THE ACCIDENT WAS: THE PILOT'S APPROACH PROCEDURE/TECHNIQUE TO FLY VFR APPROACH PATTERN AT 50 FEET AGL.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 14, 1992 · about 4:00 am local time
- Place
- Upper Yantarni, Alaska · map
- Type
- Accident
- Injuries
- 2 people had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Piper PA-12-150 · all PA-12-150s on the register
- Registration
- N2577M · registry record · serial 12-1051
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT OF A WHEEL EQUIPPED PA12 ENCOUNTERED AN APPROACH TURN STALL WHILE MANEUVERING FOR LANDING FROM A 50 FOOT PATTERN ALTITUDE AT REMOTE GRAVEL BAR LOCATION ON ALASKA PENINUSLA. THE PILOT AND PAX RECVD MINOR INJURIES AND ACFT WAS SUBSTANTIALLY DAMAGED.
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: multi-engine land; single-engine land; single-engine sea; instrument: airplane
- Flight time: 6,680 hours in all; 350 in this make and model; 40 in the last 90 days; 32 in the last 30 days; 4,100 as pilot in command; 1,012 on instruments
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: frt
The aircraft
- Airframe total time: 5,642 hours
- Last inspection: annual inspection, September 2, 1992; 32 hours since
- Maximum gross weight: 1,750 lb
- Seats: 3
- Landing gear: fixed
- Engine: Lycoming O-320-A2B (piston); 0 hours total
The flight
- Departed from: Nakalilok AK at 10:15 pm
- Destination: Yantarni Creek AK
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 010° at 5 knots
- Visibility: 30 statute miles
- Sky: not recorded; clear
- Temperature: 50°F (10°C), dew point 0°F (-18°C)
- Altimeter: 30.00 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 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.
Other NTSB records under N2577M the same tail number, which may have belonged to a different aircraft at the time
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.