20231002013379A

Accident · Substantial damage

FAA accident report · Helicopteres Guimbal CABRI G2 · Cahokia Heights, IL · October 2, 2023

Date: October 2, 2023 · 15:57 local
Place: Cahokia Heights, IL
Airport: St Louis Downtown Airport
Phase of flight: Landing: Touchdown
Operating rules: General operating rules (Part 91)
Operator: 3MYS
Damage: Substantial damage
Aircraft: N354MH
NTSB investigation: NTSBCEN24LA005
Reported as: Helicopteres Guimbal Cabri G2
Reported engine: Lycoming O-360-J2A
People aboard: 1
Fatal injuries: 0
Other injuries: 0
Pilot’s certificate: Student
Pilot’s flight hours: 53 total53 in this make and model10 in the last 90 days

N354MHRegistered now · Helicopteres Guimbal CABRI G2S/N 1149 · Built 2016 Airframe modelHelicopteres Guimbal CABRI G2 Engine modelLycoming O-360-J2AReciprocating

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry 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.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

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.

As the FAA filed it

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.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB CEN24LA005Accident · No injuriesClass 4 · LimitedFinal reportCahokia Heights, ILThe student pilot’s failure to maintain helicopter control which resulted in impact with the ground.Oct 2, 2023 · Substantial damage

Other reports on N354MH · 1

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

Incident 20221106020139ITakeoff: Climb Out · Cahokia Heights, ILWhile 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…Nov 6, 2022 · No damage