# NTSB WPR21LA356: Kitfox S7, N696CP, Hooper, UT, September 23, 2021 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Class 4 · Limited · Final report - Date: September 23, 2021, 16:22 local (22:22 UTC) - Place: Hooper, UT - Coordinates: 41.175062, -112.13627 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=41.1751&lon=-112.1363&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096) - Highest injury: Minor injuries - Injuries: 1 minor, 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): 103986 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR21LA356 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/103986/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=103986 - Page: https://openairdocs.org/ntsb/WPR21LA356 ## Probable cause The pilot’s excessive brake pressure which resulted in the airplane nosing over and coming to rest inverted. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Casey Perkins S-7 STI, 1 case](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=056392U), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md) - [Landing gear system: brake](https://openairdocs.org/ntsb-findings/01023242): Aircraft › Aircraft systems · Incorrect use/operation (probable cause); cases with it: [Casey Perkins S-7 STI, 1 case](https://openairdocs.org/ntsb-findings/01023242/cases.md?model=056392U), [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: [Casey Perkins S-7 STI, 1 case](https://openairdocs.org/ntsb-findings/01062045/cases.md?model=056392U), [All aircraft, 238 cases](https://openairdocs.org/ntsb-findings/01062045/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096) (defining event); cases with it: [Casey Perkins S-7 STI, 1 case](https://openairdocs.org/ntsb-events/096/sequence.md?model=056392U), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot in the tailwheel equipped airplane reported that, he made a normal approach and landed a little fast about 1/3 of the way down the grass airstrip. As he reached the last 1/3 of the airstrip, he got nervous and applied the brakes hard. The airplane subsequently nosed over and came to rest inverted substantially damaging the vertical stabilizer and rudder. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N696CP](https://openairdocs.org/aircraft/N696CP), registered now, S/N KA19108403, built 2021 (OpenAirDocs) - Reported make and model: Kitfox S7 - Registry model: [Casey Perkins S-7 STI](https://openairdocs.org/model/casey-perkins-s-7-sti) (registry code 056392U) (OpenAirDocs) - Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: KA19108403 - Year built: 2021 - Airframe hours: 41.6 - Engines: Rotax 912STI 155 hp reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, July 17, 2021, 11 hours before - Departed: ORD, Ogden, UT - Destination: Same as departure - Airport: N/A, Private - Equipment: Electronic flight bag or handheld device, ADS-B, Electronic multifunction display, Electronic primary flight display, Auto-pilot, Angle of attack indicator ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 34; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; seat: left; restraint: 4-point; flight hours: 285 total, 42 in this make and model, 235 as pilot in command, 48 in the last 90 days, 35 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 290° at 9 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 79 °F, dew point 36 °F - Altimeter: 30.11 inHg - Observed at: KOGD, 6 nm away - METAR: KOGD 232153Z 29009KT 10SM CLR 26/02 A3011 RMK AO2 SLP152 T02560017 ## 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 20210923016329A](https://openairdocs.org/incident/20210923016329A), Sep 23, 2021: Casey Perkins S-7 STI, Hooper, UT, Substantial damage. Pilot approached family farm field from the west landing to the east. Pilot landed about one third of the way down the field at around 40 mph. As pilot… ## Docket (2 files) The files NTSB released with the investigation on March 24, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=103986. 3.6 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 7 pages, 3.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13380443&FileExtension=pdf&FileName=Z-%20Attachment%2001%20-6120_Redacted-Rel.pdf - Photo array (item 2, PDF, 2 pages, 264 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13521638&FileExtension=pdf&FileName=Z-%20Attachment%2002%20-Photos-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.