Hiller UH-12C accident near Concrete, Washington, August 24, 1992
On August 24, 1992 at about 11:30 pm local time, a Hiller UH-12C (helicopter), registered N37667, was substantially damaged in an accident near Concrete, Washington. It was a personal flight under general aviation rules (Part 91). 1 person had minor injuries. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
THE LOSS OF ENGINE POWER DUE TO FUEL EXHAUSTION, RESULTING FROM THE IMPR0PER IN-FLIGHT PLANNING BY THE PILOT IN COMMAND AND HIS FAILURE TO SELECT A PROPER TOUCHDOWN POINT FOR AN EMERGENCY FORCED LANDING. A FACTOR RELATING TO THE ACCIDENT WAS THE UNEVEN TERRAIN AT THE TOUCHDOWN POINT.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 24, 1992 · about 11:30 pm local time
- Place
- Concrete, Washington · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Hiller UH-12C · all UH-12Cs on the register
- Registration
- N37667 · no longer on the register · serial 765
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE ACFT ENGINE LOST POWER ON DOWNWIND IN THE TRAFFIC PATTERN FOR LANDING AND THE PILOT INITIATED A FORCED LANDING IN AN OPEN PASTURE. THE ACFT TOUCHED DOWN ON UNEVEN TERRAIN AND ROLLED OVER. A POST ACCIDENT EXAM OF THE ACFT FUEL TANKS REVEALED LESS THAN ONE QUART OF FUEL REMAINING.
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: rotorcraft: helicopter
- Flight time: 401 hours in all; 224 in this make and model; 13 in the last 90 days; 6 in the last 30 days; 360 as pilot in command
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 2,085 hours
- Last inspection: annual inspection, January 25, 1992; 38 hours since
- Maximum gross weight: 2,500 lb
- Seats: 3
- Landing gear: fixed
- Engine: Franklin 6V-335-B (piston); 0 hours total
The flight
- Destination: WA13
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 300° at 3 knots
- Visibility: 7 statute miles
- Sky: scat at 2,000 ft
- Temperature: 72°F (22°C), dew point 66°F (19°C)
- Altimeter: 30.00 inHg
- Observation at 11:55 pm from NUW, 36 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.