Sunday, August 23, 2020

Abnormal Runway Contact: Guimbal G-2 Cabri, N367PA; accident occurred April 26, 2019 at McMinnville Municipal Airport (KMMV), Yamhill County, Oregon


Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Hillsboro, Oregon

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

https://registry.faa.gov/N367PA

Location: McMinnville, OR
Accident Number: GAA19CA226
Date & Time: 04/26/2019, 1615 PDT
Registration: N367PA
Aircraft: Guimbal CABRI
Aircraft Damage: Substantial
Defining Event: Abnormal runway contact
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Instructional

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). The pilot reported that after he completed his first right 180º turn full-down autorotation, the airspeed in the turn was "too slow". The pilot focused on more airspeed during the right turn on his second attempt, but the descent rate increased due to the helicopter's airspeed. After he completed the right turn and aligned with the runway centerline, he felt that the airspeed was fast and flared to reduce the ground speed and build main rotor RPM. However, the helicopter also started to sink during the flare, so the pilot leveled the helicopter to prevent a tail strike. The helicopter touched down on it 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 flight instructor added that the 180º right turn positioned the helicopter to the centerline of the runway but at a lower height than was desirable. The low height prevented a normal flare from being performed as the tail would have struck the runway. The normal flare prior to touch down in a full down autorotation will 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.

The pilot reported that there were no preimpact mechanical failures or malfunction that would have precluded normal operations.

Pilot Information

Certificate: Flight Instructor; Commercial
Age: 28, Male
Airplane Rating(s): None
Seat Occupied: Right
Other Aircraft Rating(s): Helicopter
Restraint Used:
Instrument Rating(s): Helicopter
Second Pilot Present: Yes
Instructor Rating(s): Helicopter
Toxicology Performed: No
Medical Certification: Class 1 Without Waivers/Limitations
Last FAA Medical Exam: 05/21/2018
Occupational Pilot: Yes
Last Flight Review or Equivalent: 02/15/2019
Flight Time: (Estimated) 728.9 hours (Total, all aircraft), 457.9 hours (Total, this make and model), 625.4 hours (Pilot In Command, all aircraft), 113.2 hours (Last 90 days, all aircraft), 55.2 hours (Last 30 days, all aircraft), 3.9 hours (Last 24 hours, all aircraft)

Flight Instructor Information

Certificate: Flight Instructor; Commercial
Age: 51, Male
Airplane Rating(s): None
Seat Occupied:Left
Other Aircraft Rating(s): Helicopter
Restraint Used:
Instrument Rating(s): None
Second Pilot Present: Yes
Instructor Rating(s): Helicopter
Toxicology Performed: No
Medical Certification: Class 1 With Waivers/Limitations
Last FAA Medical Exam: 02/20/2019
Occupational Pilot: Yes
Last Flight Review or Equivalent: 04/07/2019
Flight Time: (Estimated) 3359.3 hours (Total, all aircraft), 2189 hours (Total, this make and model), 3303 hours (Pilot In Command, all aircraft), 114 hours (Last 90 days, all aircraft), 53 hours (Last 30 days, all aircraft), 7 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Guimbal
Registration: N367PA
Model/Series: CABRI G2
Aircraft Category: Helicopter
Year of Manufacture: 2015
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 1108
Landing Gear Type: Skid
Seats: 2
Date/Type of Last Inspection: 04/26/2019, Continuous Airworthiness
Certified Max Gross Wt.: 1543 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 1733.3 Hours at time of accident
Engine Manufacturer: Lycoming
ELT: Installed, not activated
Engine Model/Series: O-360-J2A
Registered Owner: Precision Flight Training Inc
Rated Power: 145 hp
Operator: Precision Flight Training Inc
Operating Certificate(s) Held: Pilot School (141)

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KMMV, 159 ft msl
Distance from Accident Site: 0 Nautical Miles
Observation Time: 2253 UTC
Direction from Accident Site: 70°
Lowest Cloud Condition: Clear
Visibility: 10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 7 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 180°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.19 inches Hg
Temperature/Dew Point: 19°C / 6°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: McMinnville, OR (MMV)
Type of Flight Plan Filed: Company VFR
Destination: McMinnville, OR (MMV)
Type of Clearance: None
Departure Time: 1600 PDT
Type of Airspace: Class G

Airport Information

Airport: McMinnville Muni (MMV)
Runway Surface Type: Asphalt
Airport Elevation: 162 ft
Runway Surface Condition: Dry
Runway Used: 17
IFR Approach: None
Runway Length/Width: 4340 ft / 75 ft
VFR Approach/Landing: Simulated Forced Landing; Traffic Pattern

Wreckage and Impact Information

Crew Injuries: 2 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 45.194444, -123.136111 (est)

2 comments:

  1. Autorotation training sometimes resembles quality control in a match factory.

    ReplyDelete
  2. Always like these little light choppers. That "Fenestron" tail rotor design may look familiar: Bruno Guimbal worked on the original design of the Aérospatiale SA 365 Dauphin 2.

    ReplyDelete