# Incident 20221106020139I: Helicopteres Guimbal CABRI G2, Cahokia Heights, IL, November 6, 2022

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: November 6, 2022, 19:31 local time
- Place: Cahokia Heights, IL
- Airport: St Louis Downtown
- Damage: No damage
- Phase of flight: Takeoff: Climb Out
- Operating rules: Pilot school (Part 141)
- Operator: 3MYS
- Location: 38.5704° N, 90.1551° W: Placed by OpenAirDocs at ST LOUIS DOWNTOWN (CPS), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.5704&lon=-90.1551&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: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Flight instructor
- Pilot flight hours: 423 total
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20221106020139I

## Narrative

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

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. ROTOR RPM CONTINUED TO DECREASE WHILE ENGINE RPM INCREASED. THE PILOT DECLARED AN EMERGENCY AND WAS ABLE TO LAND THE AIRCRAFT WITHOUT FURTHER INCIDENT. NO DAMAGE TO PERSONS OR PROPERTY.

## Other reports on N354MH (1)

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

- [Accident 20231002013379A](https://openairdocs.org/incident/20231002013379A), Oct 2, 2023: Helicopteres Guimbal CABRI G2 (N354MH), Cahokia Heights, IL, Substantial damage. 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…

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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