Evans Aircraft VP-2 accident near Cedar Valley, Utah, September 18, 1987
On September 18, 1987 at about 9:15 pm local time, a Evans Aircraft VP-2, an amateur-built aircraft,, registered N84772, was destroyed in an accident near Cedar Valley, Utah. It was a personal flight under general aviation rules (Part 91). 1 person was seriously injured. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 18, 1987 · about 9:15 pm local time
- Place
- Cedar Valley, Utah · map
- Type
- Accident
- Injuries
- 1 person was seriously injured.
- Weather
- visual conditions (good weather)
- Aircraft
- Evans Aircraft VP-2, amateur-built
- Registration
- N84772 · no longer on the register · serial N84772
- Damage
- Destroyed
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE ACFT WAS FLOWN BY TWO DIFFERENT PLTS WHO COMPLAINED OF STIFF AILERONS. THE AILERON SYSTEM WAS EXAMINED BUT NO DEFICIENCIES WERE NOTED. A THIRD PLT THEN TOOK OFF AND BEGAN A LT TURN AT ABOUT 75 TO 100 FT AGL. WHEN HE ATTEMPTED TO RETURN TO WINGS LEVEL HE WAS UNABLE TO ROLL TO THE RT. THE LT BANK THEN INCREASED AND THE ACFT COLLIDED WITH THE GROUND IN A LT WING LOW, NOSE LOW ATTITUDE AND CARTWHEELED. EXAMINATION OF THE INBOARD AILERON PULLEY BLOCK ON THE LT WING REVEALED THAT ADHESIVE USED TO AFFIX THE BLOCK TO THE SUPPORTING STRUCTURE HAD SEEPED DOWN TO THE OUTSIDE OF THE PULLEY AND FORMED A BOND BETWEEN THE PULLEY AND THE STRUCTURE. THE PULLEY ALSO HAD A GROOVE WORN IN THE PULLEY CHANNEL CONSISTENT WITH LACK OF PULLEY ROTATION.
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
- Flight time: 4,000 hours in all; 2 in this make and model
- Medical certificate: None
- Seat: frt
The aircraft
- Last inspection: inspection type not recorded
- Maximum gross weight: 600 lb
- Seats: 1
- Landing gear: fixed
- Engine: Continental A75 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 040° at 10 knots
- Visibility: 30 statute miles
- Sky: clear
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
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.