LAX04CA146 · Robinson R22 Beta
Los Angeles Helicopters Robinson R22 Beta · Accident: roll over during landing
From Long Beach International Airport (LGB) to an unrecorded destination
Event
- NTSB case
- LAX04CA146
- 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 R22 Beta
- Aircraft type
- Robinson R22
- 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
- N7188S
- Operator
- Los Angeles Helicopters
- Onboard fatalities
- Unknown
- Route
- From Long Beach International Airport (LGB), Long Beach, CATo 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 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
- Roll over
- 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 › Cyclic, improper use of
- 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
The helicopter rolled over while the certified flight instructor (CFI) and student were practicing autorotations from a hover. On the previous attempt, the student pilot applied improper left cyclic input. The CFI identified the improper action to the student, and told him to try it again. The student landed the helicopter and maintained the heading; the CFI did not perceive any lateral movement. Then the CFI realized that the helicopter was starting to roll to the left. The CFI applied full right cyclic, but the helicopter continued to roll slowly until the main rotor blades contacted the ground. The helicopter came to rest on its left side. The CFI stated that the airplane had no mechanical failures or malfunctions during the flight.
Probable cause
the student pilot's improper use of the cyclic control and the certified flight instructor's inadequate supervision, which resulted in a rollover.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX04CA146
- Event ID
- 20040324X00365
- Case number
- LAX04CA146
- 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: local date, investigation status, coordinates. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2004-03-06.
- API snapshot SHA-256: 0ee560b330942541af5f4fd20fe7cde09e3ecc9216165e47b698d8836ba9ce1e; retrieved 2026-09-21T19:17:04.800Z.