WPR09TA356 · Bell 212
USDA Forest Service Bell 212 · Accident while maneuvering
From Willow Creek, CA (private airstrip) to Willow Creek, CA (private airstrip)
Event
- NTSB case
- WPR09TA356
- 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
- 1 · 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
- Government
- 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 212
- Aircraft type
- Bell 212
- 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
- N212HP
- Operator
- USDA Forest Service
- Onboard fatalities
- Unknown
- Route
- From Willow Creek, CA (private airstrip)To Willow Creek, CA (private airstrip)
- 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
- Public Aircraft
- 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
- Miscellaneous/other
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- None
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 purpose of the flight was to conduct proficiency rappel training. During a preflight equipment check, one of the rappellers identified a broken "Kong" clip on the Tri-link/J-hook interface on the harness. He replaced the Kong clip with a rubber O-ring (an authorized substitution) and then he returned to the helicopter. Minutes later, with the helicopter in a stabilized hover, witnesses on the ground reported that they observed the rappeller transition from inside the helicopter to the port side skid, then fall down the rope at excessive speed. Postaccident examination of the rope and harness assembly revealed that the rappeller's J-hook was attached to the Sky Genie and rope; however, the J-hook was not attached to the Tri-link and harness. A broken O-ring, believed to be the O-ring used to center the Tri-link and J-hook, was found on the ground approximately 30 feet from where the harness assembly was located. Evidence obtained during the investigation suggests that the rappeller's Tri-link and J-hook were not mechanically linked (prior to the rappeller transitioning to the skid), but rather inadvertently linked together with a non load-bearing O-ring used to center the latching devices. Examination of the J-hook, Sky Genie, Tri-link and harness by investigators from the US Forest Service revealed no evidence of malfunction or defect.
Probable cause
The rappeller's failure to properly latch the rappelling harness to the rappelling assembly before exiting the helicopter.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR09TA356
- Event ID
- 20090720X02055
- Case number
- WPR09TA356
- 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, damage. 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: 02cf7cc39c800543ede258101b15a821489d17487ecf790cd956060ce8683994; retrieved 2026-09-13T20:22:37.091Z.