Guimbal CABRI N367PA

Summary

On 26 April 2019 at about 23:15 local time, a Guimbal CABRI registered N367PA, operated by Precision Flight Training Inc, was involved in an accident near McMinnville, Oregon, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

26 April 2019 at 23:15

Classification

Accident

Location

McMinnville, Oregon, United States

Nearest airport

Mc Minnville Muni (MMV)

Coordinates

45.1944, -123.1361

Aircraft

Guimbal CABRI

Registration

N367PA

Category

Helicopter

Year built

2015

Engines

1

Operator

Precision Flight Training Inc

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Mc Minnville → Mc Minnville

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

GAA19CA226

Nobody was injured.

The pilot's improper landing flare during a turning, full-down autorotation, which resulted in a lower-than-normal rotor rpm, a faster-than-normal ground run speed, and the subsequent loss of directional control, a runway excursion, and a roll-over. Contributing to the accident was the flight instructor's delayed remedial action.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The pilot reported that the purpose of the training flight was to complete multiple simulated, engine failure autorotations without a power recovery (full-down autorotation). After he completed his first right, 180º turn, full-down autorotation, the airspeed was "too slow." He added that the instructor told him to maintain more speed during the right turn of his second attempt, and the pilot focused on maintaining more airspeed, but the descent rate increased "due to the speed." The pilot added that, after he completed the right turn and aligned with the runway centerline, he felt that the airspeed was fast, so he flared to reduce the ground speed and increase the main rotor rpm. However, the helicopter started to sink during the flare, so due to the low altitude, the pilot leveled the helicopter to prevent a tail strike. The helicopter touched down on its skids with "substantial" ground speed and veered slightly right. The pilot applied full left cyclic and pedal input, but the helicopter continued to veer right. The helicopter exited the runway and rolled over on its left side. The fuselage and main rotor blades were substantially damaged. The pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation. The flight instructor reported that the 180º right turn aligned the helicopter with the runway centerline but at a lower altitude than was desirable because it prevented the pilot from conducting a normal flare "as the tail would have struck the runway." He added that, a normal flare before touchdown in a full-down autorotation would result in a 30º nose-up attitude, but the pilot was only able to achieve about a 10º nose-up attitude "for fear of damaging the tail."          

Quoted verbatim from the NTSB record.