# NTSB LAX96LA219: Robinson R22 Beta, N2311R, Paso Robles, CA, June 5, 1996 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 5, 1996, 11:15 local (18:15 UTC) - Place: Paso Robles, CA - Coordinates: 35.6095, -120.759742 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=35.6095&lon=-120.7597&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report March 31, 1998 - Report: Approved by Office Director - NTSB case key (mKey): 29461 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX96LA219 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/29461/pdf - Page: https://openairdocs.org/ntsb/LAX96LA219 ## Probable cause the student pilot's loss of control and subsequent dynamic rollover due to his abrupt and excessive use of the collective and anti-torque controls. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - in flight, hover - in ground effect - rotorcraft flight controls - improper use of, pilot in command (cause) - Roll over, hover - in ground effect ## Analysis The student pilot decided to hover taxi back to the operator's ramp from the helipad. As the helicopter was getting light on the skids, he abruptly pulled collective and the aircraft began to spin to the right. He applied full left pedal and the helicopter then began to spin to the left. He bottomed the collective in an attempt to put the aircraft back down on the pad, and as it touched down, it rolled onto its right side. After the accident, he told another pilot at the school that he had encountered dynamic rollover. ## Factual narrative On June 5, 1996, at 1115 hours Pacific daylight time, a Robinson R22 Beta, N2311R, rolled over while transitioning from the helipad to hover taxi at the Paso Robles Municipal Airport, Paso Robles, California. The aircraft sustained substantial damage; however, the solo student pilot was not injured. The aircraft was being operated as an instructional flight by Kyodo Air, Inc., when the accident occurred. The flight originated in Paso Robles at 1043 on the morning of the accident. Visual meteorological conditions prevailed and no flight plan had been filed. The student pilot reported that he had been doing hover practice about 1 to 2 feet agl over the helipad. He decided to hover taxi back to the operator's ramp after setting down on the pad. As the helicopter was getting light on the skids, he abruptly pulled collective and the aircraft began to spin to the right. He applied full left pedal and the helicopter then began to spin to the left. He bottomed the collective in an attempt to put the aircraft back down on the pad, and as it touched down, it rolled onto its right side. After the accident, he told another pilot at the school that he had encountered dynamic rollover. The operator reported that the main rotor and tail rotor blades, empennage, swashplate, cyclic and collective control push-pull rods, main rotor gearbox, skids, and windscreen were damaged in the accident. ## Aircraft - Registration: [N2311R](https://openairdocs.org/deregistered/N2311R-1998-08-18), registration cancelled 1998-08-18, S/N 1964 (OpenAirDocs) - Reported make and model: Robinson R22 BETA - Registry model: [Robinson Helicopter R22 BETA](https://openairdocs.org/model/robinson-helicopter-r22-beta) (registry code 7640110) (OpenAirDocs) - Category: Helicopter - Serial number: 1964 - Airframe hours: 1856 - Engines: Lycoming O-320-B2C 160 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Kyodo Air, Inc. - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, May 30, 1996, 12 hours before - Departed: PRB - Airport: PRB, Paso Robles Municipal ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 33; student; medical: class 3, valid medical--no waivers/lim.; seat: right; flight hours: 40 total, 40 in this make and model, 1 as pilot in command, 40 in the last 90 days, 27 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 340° at 4 knots - Visibility: 30 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 48 °F - Altimeter: 29.00 inHg - Observed at: PRB ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 19960605012779A](https://openairdocs.org/incident/19960605012779A), Jun 5, 1996: Robsin R22BETA, Paso Robles, CA, Substantial damage. Hovering over helipad, helicopter spun to left, lost control, hit ground. Damaged main rotor, tail, windscreen,skid 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.