# NTSB WPR20CA036: Javron PA-18 Replica, N864SC, Nephi, UT, December 3, 2019 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: December 3, 2019, 16:39 local (23:39 UTC) - Place: Nephi, UT - Coordinates: 39.878612, -111.857223 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=39.8786&lon=-111.8572&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Nose over/nose down](https://openairdocs.org/ntsb-events/096) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report June 16, 2020 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 100653 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR20CA036 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/100653/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=100653 - Page: https://openairdocs.org/ntsb/WPR20CA036 ## Probable cause The passenger’s inadvertent application of the brakes during landing, which resulted in a nose-over. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: brake](https://openairdocs.org/ntsb-findings/01023242): Aircraft › Aircraft systems · Unintentional use/operation (probable cause); cases with it: [All aircraft, 297 cases](https://openairdocs.org/ntsb-findings/01023242/cases.md) - [Performance/control parameters: surface speed/braking](https://openairdocs.org/ntsb-findings/01062045): Aircraft › Aircraft oper/perf/capability · Incorrect use/operation (probable cause); cases with it: [All aircraft, 238 cases](https://openairdocs.org/ntsb-findings/01062045/cases.md) - [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Passenger (probable cause); cases with it: [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Off-field or emergency landing](https://openairdocs.org/ntsb-events/440); cases with it: [All aircraft, 3,365 cases](https://openairdocs.org/ntsb-events/440/sequence.md) - [Landing-flare/touchdown: Miscellaneous/other](https://openairdocs.org/ntsb-events/900); cases with it: [All aircraft, 1,556 cases](https://openairdocs.org/ntsb-events/900/sequence.md) - [Landing-flare/touchdown: Nose over/nose down](https://openairdocs.org/ntsb-events/096) (defining event); cases with it: [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot stated that he was planning to perform an off-airport landing on the shore of a reservoir where he had successfully landed many times before. After about a 30-minute flight, the pilot configured the airplane for landing on the shoreline. During touchdown, the passenger, who was in the rear seat, inadvertently applied the brakes. Because the brakes were applied on touchdown, the airplane immediately nosed over and came to rest inverted. The airplane sustained substantial damage to the wing strut. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Factual narrative The pilot stated that he was planning to perform an off-airport landing on the shore of a reservoir where he had successfully landed many times before. After an approximate 30-minute flight, the pilot configured the airplane for landing on the shoreline. During touchdown, the passenger, who was positioned in the rear-seat, inadvertently applied the brakes. Because of the brakes being depressed on touchdown, the airplane immediately nosed-over coming to rest inverted. The airplane sustained substantial damage to the wing strut. The pilot reported that there were no preimpact mechanical anomalies with the airplane that would have precluded normal operation. ## Aircraft - Registration: N864SC (not matched to a registry record) - Reported make and model: JAVRON PA-18 Replica - Category: Airplane - Serial number: JA1607094 - Year built: 2017 - Airframe hours: 130 - Engines: Lycoming IO-360-A1A 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, July 29, 2019 - Departed: U14, Nephi, UT - Destination: U14, Nephi, UT - Airport: U14, Nephi Muni - Equipment: Data recorder, Auto-pilot, Angle of attack indicator, ADS-B, Onboard weather, Electronic primary flight display, Electronic multifunction display ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 38; injuries: none; flight instructor, airline transport; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review July 25, 2019; seat: front; restraint: 4-point; flight hours: 8,716 total, 61 in this make and model, 8,230 as pilot in command, 145 in the last 90 days, 54 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 30° at 5 knots - Visibility: 20 statute miles - Lowest ceiling: none - Temperature: 37 °F, dew point 30 °F - Altimeter: 25.64 inHg - Observed at: KPVU, 21 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 20191203022029A](https://openairdocs.org/incident/20191203022029A), Dec 3, 2019: James R Bair JAVRON PA-18 REPLICA, Mona, UT, Substantial damage. The pilot attempted to land a javron PA-18 replica, experimental, amateur-built, aircraft on an unimproved surface of a lake shore on Mona reservoir. During… ## Docket (2 files) The files NTSB released with the investigation on January 14, 2020, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=100653. 4.7 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 4.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40479854&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Photo Array (item 2, .PDF, 707 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40479855&FileExtension=.PDF&FileName=Photo%20Array-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.