LAX05CA188 · Robinson R-22 Beta II
Silver State Helicopters Robinson R-22 Beta II · Accident: in flight collision with object during landing
From North Las Vegas Airport (KVGT) to Jean Airport (0L7)
Event
- NTSB case
- LAX05CA188
- 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
Robinson R-22 Beta II
- Aircraft type
- Robinson R-22
- 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
- N192SH
- Operator
- Silver State Helicopters
- Onboard fatalities
- Unknown
- Route
- From North Las Vegas Airport (KVGT), Las Vegas, NVTo Jean Airport (0L7), Jean, NV
- 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 · flare/touchdown
- 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
- 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
- Dual student › Adequate rotor RPM, not maintained
- Pilot in command(cfi) › Remedial action, delayed
- Pilot in command(cfi) › Supervision, inadequate
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
During a 180-degree practice autorotation, the main rotor rpm decayed and the helicopter tail boom collided with a boundary fence short of the intended landing spot. As the helicopter rolled out of the 180-degree turn onto final approach, the certified flight instructor and student both noticed that the main rotor rpm had decayed. The student then increased the throttle in attempt to go around and the instructor took the controls. At this point the instructor noticed that the main rotor rpm was at 92 percent and the helicopter was descending. The CFI was unable to stop the decent rate, and the helicopter collided with the fence short of the intended touchdown point and then impacted the terrain. The instructor and student both stated that the helicopter and engine had no mechanical failures or malfunctions during the flight. The density altitude was calculated to be about 5,590 feet.
Probable cause
the student's failure to maintain adequate main rotor rpm when performing a180-degree autorotation, and the instructor's inadequate supervision and delayed remedial action. A factor in the accident was the high density altitude.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX05CA188
- Event ID
- 20050616X00792
- Case number
- LAX05CA188
- 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, coordinates. 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: b016b0aabaa6cd828efa5d53c70642a26517e6951a81fc90bf01bb0a935d7341; retrieved 2026-09-22T05:52:07.568Z.