WPR10CA338 · Adams John R JR PIEL DIAMANT
Adams John R JR PIEL DIAMANT · Accident: collision with terrain/object (non-CFIT) during landing
From Bluff Airport (66V) to Blanding Municipal Airport (KBDG)
Event
- NTSB case
- WPR10CA338
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Adams John R JR PIEL DIAMANT
- Aircraft type
- Adams John R JR PIEL DIAMANT
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N278JA
- Operator
- Narramore Todd I
- Onboard fatalities
- Unknown
- Route
- From Bluff Airport (66V), Bluff, UTTo Blanding Municipal Airport (KBDG), Blanding, UT
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Landing
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Collision with terrain/object (non-CFIT)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Environmental issues › Physical environment
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
While on a cross country flight the pilot recognized that he had been using the wrong road to navigate to his destination. He decided to turn around and return to the departure airport. The pilot reported that he was concerned with the approaching night and decreasing light condition. As the amount of light continued to decrease he elected to make a precautionary landing on a road prior to reaching the departure airport. The pilot stated that either during the landing or taxi the underside of the wing was damaged by contact with a road marker. Further damage to the wing caused by contacting additional road markers occurred when the pilot taxied off the road to park the airplane and again when repositioning the airplane. The pilot reported that there were no known mechanical malfunctions or failures with the aircraft prior to the accident.
Probable cause
The pilot's failure to maintain clearance from road signs during landing.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR10CA338
- Event ID
- 20100708X75433
- Case number
- WPR10CA338
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2010-07-03.
- API snapshot SHA-256: 93d60ddf6801ef9bd85923d4d564c48748f0c4322e2be0225936b9fc55f2a125; retrieved 2026-09-15T14:39:55.701Z.