Hiller UH-12 accident near Walla Walla, Washington, May 27, 1996
On May 27, 1996, a Hiller UH-12 (helicopter), registered N174HA, was substantially damaged in an accident near Walla Walla, Washington. It was a business flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
the pilot's inadequate preflight/planning, and his failure to refuel the helicopter with sufficient fuel before flight, which resulted in fuel exhaustion and a subsequent forced landing. A factor relating to the accident was: an inaccurate fuel quantity gauge, which displayed a false indication of fuel.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 27, 1996
- Place
- Walla Walla, Washington · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Hiller UH-12 · all UH-12s on the register
- Registration
- N174HA · registry record · serial 3074HA
- Damage
- Substantial damage
- Flight
- Business flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The pilot reported that he exhausted his fuel supply while attempting to land at the destination airport for refueling. He had previously attempted to refuel at a remote landing zone equipped with a fuel truck, but the fuel truck was unable to pump fuel at that time. The pilot and the owner of the operation boarded the helicopter and decided to fly to the airport with what they thought was about 14 gallons of fuel on board. The pilot intended on landing the helicopter (en route), if the fuel gauge reached the 'yellow' range during the flight. About 2.5 nautical miles from the airport, when the fuel gauge needle was slightly outside of the yellow range, the engine 'quit.' The pilot executed an immediate autorotation. One of the helicopter's skids impacted soft terrain during the landing and a main rotor blade struck the ground. The helicopter rolled over and 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: flight instructor, commercial pilot
- Ratings: multi-engine land; single-engine land; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane; rotorcraft: helicopter
- Flight time: 14,000 hours in all; 90 in this make and model; 185 in the last 90 days; 35 in the last 30 days; 13,500 as pilot in command; 2,500 on instruments
- Medical certificate: Class 2
- Seat: ctr
The aircraft
- Airframe total time: 5,953 hours
- Last inspection: annual inspection, February 10, 1996; 187 hours since
- Maximum gross weight: 3,100 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming VO-540-C2A (piston); 0 hours total
The flight
- Departed from: WA
- Destination: ALW WA
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 180° at 10 knots
- Visibility: 15 statute miles
- Sky: clear
- Temperature: 75°F (24°C), dew point 46°F (8°C)
- Altimeter: 29.00 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.
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.