CHI85LA338 · Bell 47G-5
Bell 47G-5 · Accident: in flight collision with object while maneuvering
From RLA · Ripon, WI to an unrecorded destination
Event
- NTSB case
- CHI85LA338
- 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
- 0
- 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 47G-5
- Aircraft type
- Bell 47
- 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
- N1476W
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From RLA · Ripon, WITo not recorded
- 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 137: Agricultural
- 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 · aerial application
- First occurrenceThe 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
- In flight collision with object
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Wire, transmission (marked)
- 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
- Other person › Visual lookout, not maintained
- Pilot in command › Visual lookout, not maintained
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE FLD WHERE THIS ACCIDENT OCCURRED HAD BEEN SPRAYED ONE WEEK PRIOR TO THE ACCIDENT BY A FIXED-WING ACFT AT AN ALT OF 20 FT. NO WIRES WERE NOTED TO BE A HAZARD AT THAT TIME. ON THE DAY OF THE ACCIDENT THE PLT OF THE HELICOPTER WAS TALKING TO A SPOTTER ON THE GROUND VIA RADIO. NEITHER PERSON NOTICED THE POWER LINES CROSSING ONE END OF A SMALL SECTION OF THE CORN FLD. THE HELICOPTER STRUCK THE WIRES ON HIS FIRST PASS. THEY BECAME ENTANGLED IN HIS ROTOR CONTROL RODS AND THE MACHINE SETTLED TO THE GROUND. THE PLT STATED THAT THE REASON NEITHER HE NOR HIS SPOTTER SAW THE WIRES WAS BECAUSE THEY WERE STRUNG IN A NON-STANDARD MANNER IN THAT THE NON-SUPPORTED SPAN OF WIRE WAS EXCESSIVE. THE WIRES DROOPED TO 7 FT ABOVE THE CORN. ALSO THERE WERE NO GUY WIRES OR TRANSFORMERS ON THE POLES TO INDICATE A POWER LINE ARRAY. THIS PLT HAS OVER 5600 HOURS OF AERIAL APPLICATION FLYING TIME IN HIS LOGBOOK.
Verbatim NTSB analysis from the NTSB dataset
Sources
NTSB record CHI85LA338
- Event ID
- 20001214X37415
- Case number
- CHI85LA338
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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. 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: 4165233689a72781f11b9f1e3608e88ff8fd55621cb74738ed7690025a05212e; retrieved 2026-09-23T16:21:21.972Z.