WPR14CA041 · Bell 206B B
Montana Aero Bell 206B B · Accident: system/component malfunction/failure (non-power) while maneuvering
From Aero Heliport (90MT) to Superior, MT
Narrative check · The NTSB narrative appears to contradict this record's location. Values are shown as recorded, not corrected; compare with the narrative.
Event
- NTSB case
- WPR14CA041
- 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
Bell 206B B
- Aircraft type
- Bell 206
- 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
- N888DR
- Operator
- Montana Aero
- Onboard fatalities
- Unknown
- Route
- From Aero Heliport (90MT), Missoula, MTTo Superior, MT
- Aircraft age
- About 45 years (built 1968)
- 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 133: Rotorcraft Ext. Load
- 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 · hover
- 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
- System/component malfunction/failure (non-power)
- 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 › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot reported that during the last long-line load of the day moving bags of cedar mulch, while on approach to the drop zone, he looked outside at the trees, and did not see any indication of wind; however, he felt a little shudder as the helicopter came out of translational lift. He again looked outside at the trees, and did not see any indication of wind, and continued his approach to the drop zone. Once over the drop zone, as he went to release the bag, he noticed that the remote hook plug had come unplugged. He decided to pick the load back up and move the bag over to the pile of mulch so he could land and manually unhook the bag. When he picked the bag off the ground, the helicopter started to spin to the right, which he was unable to stop. He noticed that the collective was in the full up position so he lowered it to stop the spinning; however, before he could arrest the spinning, the helicopter struck a pile of mulch, and rolled onto its right side, which resulted in substantial damage to the fuselage. The pilot reported no preimpact mechanical malfunctions or failures that would have precluded normal operation.
Probable cause
The pilot's failure to maintain aircraft control while maneuvering during a long-line operation.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR14CA041
- Event ID
- 20131102X13104
- Case number
- WPR14CA041
- 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. 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: acf582eab23055d73858bfebd051519f5220c78ce464f25a7ad866f82199e0d8; retrieved 2026-09-15T23:04:31.627Z.