WPR22LA032 · Bell OH-58A
Farm Aviation Bell OH-58A · Accident: VFR encounter with IMC while maneuvering
From Brawley Municipal Airport (KBWC) to an unrecorded destination
Event
- NTSB case
- WPR22LA032
- 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
- Event fatalities
- Unknown
- 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
Bell OH-58A
- Aircraft type
- Bell OH-58
- Category
- Helicopter
- 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
- N902SF
- Operator
- Farm Aviation
- Onboard fatalities
- Unknown
- Route
- From Brawley Municipal Airport (KBWC), Brawley, CATo not recorded
- Aircraft age
- About 51 years (built 1970)
- 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
- Maneuvering · low-altitude flying
- 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
- VFR encounter with IMC
- 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
- Personnel issues › Action/decision
- Personnel issues › Psychological
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot reported that, during an aerial application flight, he encountered some “low-level haze/fog” as he maneuvered the helicopter towards the load truck. After safely landing, he decided to add fuel and return to his operating base. Shortly after departure, the fog thickened so he decided to return to the load site. The pilot reported that he was headed in the direction of the load truck but became spatially disorientated as the haze/fog thickened. The helicopter subsequently impacted the ground coming to rest on its right side. The helicopter sustained substantial damage to the main rotor system, fuselage, and tail boom. The pilot reported no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
Probable cause
The pilot’s failure to maintain helicopter control after becoming spatially disoriented when the helicopter entered low-level haze/fog.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR22LA032
- Event ID
- 20211110104233
- Case number
- WPR22LA032
- 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: investigation status, cause areas. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 06b9c812eaee8c695eb622d5fb2ce25b472bd61b406193a83764df22be9860cc; retrieved 2026-09-16T14:44:16.198Z.