# NTSB GAA18CA443: Just JA30 Superstol, N825PW, Chelan Falls, WA, July 22, 2018 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 22, 2018, 07:30 local (14:30 UTC) - Place: Chelan Falls, WA - Coordinates: 47.786945, -119.993057 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=47.7869&lon=-119.9931&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Landing area undershoot](https://openairdocs.org/ntsb-events/370) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report September 26, 2019 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 97900 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA18CA443 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/97900/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=97900 - Page: https://openairdocs.org/ntsb/GAA18CA443 ## Probable cause The pilot's improper approach over a river, which resulted in a collision with a dock. ## 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: [Patrick Carroll JA30 SUPERSTOL, 2 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05633EJ), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: descent/approach/glide path](https://openairdocs.org/ntsb-findings/01062040): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Patrick Carroll JA30 SUPERSTOL, 1 case](https://openairdocs.org/ntsb-findings/01062040/cases.md?model=05633EJ), [All aircraft, 809 cases](https://openairdocs.org/ntsb-findings/01062040/cases.md) - [Object/animal/substance](https://openairdocs.org/ntsb-findings/03022000): Environmental issues › Physical environment · Effect on operation (probable cause); cases with it: [Patrick Carroll JA30 SUPERSTOL, 1 case](https://openairdocs.org/ntsb-findings/03022000/cases.md?model=05633EJ), [All aircraft, 224 cases](https://openairdocs.org/ntsb-findings/03022000/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Landing area undershoot](https://openairdocs.org/ntsb-events/370) (defining event); cases with it: [Patrick Carroll JA30 SUPERSTOL, 1 case](https://openairdocs.org/ntsb-events/370/sequence.md?model=05633EJ), [All aircraft, 201 cases](https://openairdocs.org/ntsb-events/370/sequence.md) - [Landing: Part(s) separation from AC](https://openairdocs.org/ntsb-events/338); cases with it: [Patrick Carroll JA30 SUPERSTOL, 1 case](https://openairdocs.org/ntsb-events/338/sequence.md?model=05633EJ), [All aircraft, 563 cases](https://openairdocs.org/ntsb-events/338/sequence.md) - [Landing: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Patrick Carroll JA30 SUPERSTOL, 2 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=05633EJ), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot reported that, as he made the approach over a river to land at his private airstrip, he "came in too low and hit a dock." The airplane's propeller struck the dock, and the landing gear separated from the airplane, which then slid about 25 ft and came to a stop. The airplane sustained substantial damage to the engine mounts. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative The pilot reported that as he made the approach over a river to land at his private airstrip, he "came in too low and hit a dock," that was moored to the side of the river. The airplane's propeller struck the dock and the landing gear separated from the airplane which slid about 25ft on the airstrip and came to a stop. The airplane sustained substantial damage to the engine mounts. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N825PW](https://openairdocs.org/deregistered/N825PW-2021-10-30), registration cancelled 2021-10-30, S/N JA 308-07-13, built 2014 (OpenAirDocs) - Reported make and model: Just JA30 SUPERSTOL (Undesignat) - Registry model: [Patrick Carroll JA30 SUPERSTOL](https://openairdocs.org/model/patrick-carroll-ja30-superstol) (registry code 05633EJ) (OpenAirDocs) - Registry engine: [Rotax 914 series](https://openairdocs.org/engine/rotax-914-series) (registry code 55575, 4 cycle) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: JA 308-07-13 - Year built: 2014 - Airframe hours: 156.5 - Engines: Rotax 914UL 115 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, July 6, 2017 - Departed: S10, Chelan, WA - Destination: S10, Chelan, WA - Flight plan: VFR - Airport: PVT, Pvt Airstrip, runway NW, 490 × 150 ft, grass/turf - Equipment: None ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 68; injuries: none; sport pilot; airplane ratings: single-engine land; medical: sport pilot, without waivers/limitations; seat: left; restraint: 4-point; flight hours: 119.5 total, 44.5 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 290° at 7 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 63 °F, dew point 46 °F - Altimeter: 30.22 inHg - Observed at: KEAT, 25 nm away ## 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 20180722017599A](https://openairdocs.org/incident/20180722017599A), Jul 22, 2018: Patrick Carroll JA30 SUPERSTOL, Chelan Falls, WA, Substantial damage. Pilot had practiced numerous take offs and landings at lake Chelan airport prior to landing at Chelan Falls private strip. Flew to private strip in Chelan… ## Other investigations on N825PW (1) 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. - [NTSB WPR19FA133](https://openairdocs.org/ntsb/WPR19FA133), May 6, 2019: Just JA30 Superstol (N825PW), Chelan, WA, destroyed, 1 fatal. Probable cause: The pilot’s exceedance of the airplane's critical angle of attack during the initial climb after takeoff, which resulted in an aerodynamic stall and spin. ## Docket (2 files) The files NTSB released with the investigation on June 5, 2019, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=97900. 3.4 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 3.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40473242&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Memorandum for Record - FAA (item 2, .PDF, 140 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40473243&FileExtension=.PDF&FileName=Memorandum%20for%20Record%20-%20FAA-Master.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.