# NTSB WPR22LA146: Robinson Helicopter R22, N19VH, Phoenix, AZ, April 7, 2022 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: April 6, 2022, 20:10 local (Apr 7, 2022, 03:10 UTC) - Place: Phoenix, AZ - Coordinates: 33.307824, -111.65545 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.3078&lon=-111.6555&mi=10 - Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping) - Defining event: [Standing: Dynamic rollover](https://openairdocs.org/ntsb-events/231) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Western Pacific Region - Parties: FAA - NTSB case key (mKey): 104908 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR22LA146 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/104908/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=104908 - Page: https://openairdocs.org/ntsb/WPR22LA146 ## Probable cause The pilot’s failure to maintain helicopter control while on the ground when his attention was diverted, which resulted in a dynamic rollover. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Robinson Helicopter R22, 18 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=7640102), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Rotorcraft flight control](https://openairdocs.org/ntsb-findings/01046700): Aircraft › Aircraft propeller/rotor · Unintentional use/operation (probable cause); cases with it: [Robinson Helicopter R22, 1 case](https://openairdocs.org/ntsb-findings/01046700/cases.md?model=7640102), [All aircraft, 9 cases](https://openairdocs.org/ntsb-findings/01046700/cases.md) - [Performance/control parameters: pitch control](https://openairdocs.org/ntsb-findings/01062022): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Robinson Helicopter R22, 1 case](https://openairdocs.org/ntsb-findings/01062022/cases.md?model=7640102), [All aircraft, 526 cases](https://openairdocs.org/ntsb-findings/01062022/cases.md) - [Attention/monitoring: attention](https://openairdocs.org/ntsb-findings/02021510): Personnel issues › Psychological · Pilot (probable cause); cases with it: [Robinson Helicopter R22, 2 cases](https://openairdocs.org/ntsb-findings/02021510/cases.md?model=7640102), [All aircraft, 226 cases](https://openairdocs.org/ntsb-findings/02021510/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Taxi-to runway: Loss of control on ground](https://openairdocs.org/ntsb-events/230); cases with it: [Robinson Helicopter R22, 3 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=7640102), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Standing: Dynamic rollover](https://openairdocs.org/ntsb-events/231) (defining event); cases with it: [Robinson Helicopter R22, 3 cases](https://openairdocs.org/ntsb-events/231/sequence.md?model=7640102), [All aircraft, 161 cases](https://openairdocs.org/ntsb-events/231/sequence.md) ## Analysis The pilot in the helicopter reported that, during a night solo training flight, the helicopter was on the ground with the throttle rolled on and full collective friction applied when he used a flashlight to view the Hobbs meter. Unbeknownst to him, the collective crept up, the helicopter rolled to the right and dynamically rolled over. The helicopter sustained substantial damage to the horizontal stabilizer, and the main rotor system. The pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal flight operation. ## Aircraft - Registration: [N19VH](https://openairdocs.org/deregistered/N19VH-2023-03-29), registration cancelled 2023-03-29, S/N 3528, built 2004 (OpenAirDocs) - Reported make and model: ROBINSON HELICOPTER COMPANY R22 (Beta II) - Registry model: [Robinson Helicopter R22](https://openairdocs.org/model/robinson-helicopter-r22) (registry code 7640102) (OpenAirDocs) - Registry engine: [Lycoming O-360 series](https://openairdocs.org/engine/lycoming-o-360-series) (registry code 41575, reciprocating) (OpenAirDocs) - Category: Helicopter - Serial number: 3528 - Year built: 2004 - Airframe hours: 15042 - Engines: Lycoming O-360 131 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Quantum Helicopters - Registered owner: Delta Leasing Inc DBA - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, March 29, 2022, 30 hours before - Departed: CHD, Chandler, AZ - Destination: Same as departure - Airport: IWA, Phoenix-Mesa Gateway Airport - Equipment: ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 26; injuries: none; private; instrument ratings: helicopter; medical: class 1, with waivers/limitations; last flight review December 21, 2021; seat: right; restraint: 3-point; flight hours: 177 total, 177 in this make and model, 92 as pilot in command, 25 in the last 90 days, 15 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Night - Wind: 70° at 10 knots, gusting 15 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 82 °F, dew point 16 °F - Altimeter: 30.02 inHg - Observed at: KIWA, 1 nm away - METAR: KIWA 070325Z 07010G15KT 10SM CLR 28/M09 A3002 RMK ACFT MSHP ## 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 20220406001729A](https://openairdocs.org/incident/20220406001729A), Apr 6, 2022: Robinson Helicopter Company R22, Mesa, AZ, Substantial damage. On April 6, 2022, a 2004 Robinson R22, N19VH, [privacy data omitted], lost control shortly after landing. The aircraft was conducting training. Visual… ## Docket (2 files) The files NTSB released with the investigation on June 30, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=104908. 1.7 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13674219&FileExtension=pdf&FileName=6120_1_Redacted-Rel.pdf - Photograph (item 2, PDF, 1 page, 300 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13674976&FileExtension=pdf&FileName=Photograph-Rel.pdf 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.