# NTSB WPR21LA267: Just JA30 Superstol, N17VP, May, ID, July 11, 2021 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: July 11, 2021, 15:00 local (21:00 UTC) - Place: May, ID · Private Airstrip - Coordinates: 44.442031, -113.77717 - Nearby events: https://openairdocs.org/map.md?lat=44.4420&lon=-113.7772&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - 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: Federal Aviation Administration - NTSB case key (mKey): 103463 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR21LA267 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/103463/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=103463 - Page: https://openairdocs.org/ntsb/WPR21LA267 ## Probable cause The pilot’s failure to maintain directional control during the landing roll, which resulted in a ground-loop and collision with terrain. ## 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: [Gary Schmitt JA30 SUPERSTOL, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05634L7), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Gary Schmitt JA30 SUPERSTOL, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=05634L7), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Gary Schmitt JA30 SUPERSTOL, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=05634L7), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The pilot in the tailwheel-equipped airplane reported that, during the landing roll on an unimproved dirt surface, the airplane veered to the right and he subsequently reduced the throttle to the idle position. About 40 knots ground speed, he made a full left rudder pedal application, but the airplane continued to the right. The pilot then applied left brake application and the airplane veered aggressively to the left and ground looped. The right main landing gear collapsed, and the right wing struck the ground, which resulted in substantial damage to the right aileron. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N17VP](https://openairdocs.org/aircraft/N17VP), registered now, S/N JA433-01-15, built 2016 (OpenAirDocs) - Reported make and model: JUST AIRCRAFT LLC JA30 SUPERSTOL - Registry model: [Gary Schmitt JA30 SUPERSTOL](https://openairdocs.org/model/gary-schmitt-ja30-superstol) (registry code 05634L7) (OpenAirDocs) - Registry engine: [Rotax 914 series](https://openairdocs.org/engine/rotax-914-series) (registry code 55575, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: JA433-01-15 - Year built: 2016 - Airframe hours: 69.9 - Engines: Rotax 914 115 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Avstar Inc - Registered owner: Avstar Inc - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, May 18, 2021, 1.3 hours before - Departed: 0ID2, May, ID - Airport: 0ID2, Flying Joseph Ranch, runway 33, 1,500 × 50 ft, grass/turf - Equipment: Electronic flight bag or handheld device, Handheld GPS ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 25; injuries: none; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review June 3, 2021; seat: left; restraint: 3-point; flight hours: 388 total, 4.4 in this make and model, 251.5 as pilot in command, 48.9 in the last 90 days, 18.8 in the last 30 days, 1.8 in the last 24 hours - Pilot; age 64; injuries: none; commercial, airline transport; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review January 7, 2021; seat: right; restraint: 3-point; flight hours: 9,950 total, 10 in this make and model, 6,300 as pilot in command, 1 in the last 90 days, 1 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 340° at 7 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 88 °F, dew point 46 °F - Altimeter: 30.03 inHg - Observed at: KOMK, 19 nm away - METAR: METAR KOMK 202153Z AUTO 34007KT 10SM CLR 31/08 A3003 RMK AO2 SLP161 T03060083= ## 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 20210711010599A](https://openairdocs.org/incident/20210711010599A), Jul 11, 2021: Gary Schmitt JA30 SUPERSTOL, May, ID, Substantial damage. On landing & during roll out, a/c drifted to right of edge of runway. Full left rudder input made. Due to low speed rudder input not effective at returning a/c… ## Docket (2 files) The files NTSB released with the investigation on November 12, 2021, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=103463. 1.7 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12824360&FileExtension=pdf&FileName=6120_1_Redacted-Rel.pdf - Photograph (item 2, PDF, 1 page, 236 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12824247&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.