# Accident 20231002013379A: Helicopteres Guimbal CABRI G2, Cahokia Heights, IL, October 2, 2023

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: October 2, 2023, 15:57 local time
- Place: Cahokia Heights, IL
- Airport: St Louis Downtown Airport
- Damage: Substantial damage
- Phase of flight: Landing: Touchdown
- Operating rules: General operating rules (Part 91)
- Operator: 3MYS
- Location: 38.5763° N, 90.1651° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=38.5763&lon=-90.1651&mi=10
- Aircraft: N354MH, registered now (https://openairdocs.org/aircraft/N354MH) (OpenAirDocs)
- Registry model: Helicopteres Guimbal CABRI G2 (registry code 9000001, https://openairdocs.org/model/helicopteres-guimbal-cabri-g2) (OpenAirDocs)
- Registry engine: Lycoming O-360-J2A (registry code 42314, https://openairdocs.org/engine/lycoming-o-360-j2a) (OpenAirDocs)
- Reported make and model: HELICOPTERES GUIMBAL CABRI G2
- Reported engine: LYCOMING O-360-J2A
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Student
- Pilot flight hours: 53 total, 53 in this make and model, 10 in the last 90 days
- NTSB investigation: [NTSB CEN24LA005](https://openairdocs.org/ntsb/CEN24LA005) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20231002013379A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

THE STUDENT PILOT HAD COMPLETED A SUPERVISED SOLO WHICH INCLUDED TWO TRAFFIC PATTERNS AND LANDINGS. AFTER THE LAST LANDING, HE ASKED FOR AND RECEIVED ATC INSTRUCTION TO LAND ON THE COMPASS ROSE ON THE WEST RAMP. AS HE APPROACHED, HE NOTICED THERE WAS AN AIRPLANE ON THE COMPASS ROSE. HE CHOSE A SPOT TO LAND 150' SOUTH OF THE COMPASS ROSE. AS HE DESCENDED, HE NOTICED ANOTHER AIRPLANE ENTER THE RAMP FROM THE SOUTH HEADING NORTH. HE ADDED COLLECTIVE, BUT DID NOT ADD THE REQUIRED EXTRA TAIL ROTOR PEDAL AND THE HELICOPTER STARTED TO ROTATE. THE STUDENT LOWERED THE COLLECTIVE ALL THE WAY. THE HELICOPTER DROPPED FROM ABOUT 30'. AFTER CONTACT WITH THE RAMP, IT SLID FOR ABOUT 10'. THERE WERE NO INJURIES.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN24LA005](https://openairdocs.org/ntsb/CEN24LA005), Oct 2, 2023: Helicopteres Guimbal Cabri G2 (N354MH), Cahokia Heights, IL, substantial damage. Probable cause: The student pilot’s failure to maintain helicopter control which resulted in impact with the ground.

## Other reports on N354MH (1)

Matched to the same aircraft by N-number and date.

- [Incident 20221106020139I](https://openairdocs.org/incident/20221106020139I), Nov 6, 2022: Helicopteres Guimbal CABRI G2 (N354MH), Cahokia Heights, IL, No damage. While repositioning the aircraft from runway 12R to the ramp at the cps airport, the pilot experienced an RPM split between the engine and rotor RPM indicator.…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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