# NTSB WPR24LA250: Boeing B75N1/N2S-3, N54173, Hollister, CA, July 18, 2024 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: July 18, 2024, 10:00 local (17:00 UTC) - Place: Hollister, CA - Coordinates: 36.891059, -121.40804 - Nearby events: https://openairdocs.org/map.md?lat=36.8911&lon=-121.4080&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 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): 194744 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR24LA250 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/194744/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=194744 - Page: https://openairdocs.org/ntsb/WPR24LA250 ## Probable cause The pilot’s loss of directional control on landing, which resulted in a nose over. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Boeing B75N1, 12 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=1380144), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Boeing B75N1, 13 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=1380144), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/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: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Boeing B75N1, 12 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=1380144), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The pilot of the tailwheel equipped airplane reported that he had not flown the airplane for a while and was practicing landings with a certificated flight instructor as a passenger. On the first landing in light and variable wind, the airplane veered sharply to the left. The pilot attempted to steer to the right, but the airplane nosed over and came to rest inverted. The pilot reported that there were no mechanical malfunctions or failures that would have precluded normal operation. ## Aircraft - Registration: [N54173](https://openairdocs.org/aircraft/N54173), registered now, S/N 75-6574, built 1942 (OpenAirDocs) - Reported make and model: BOEING B75N1/N2S-3 - Registry model: [Boeing B75N1](https://openairdocs.org/model/boeing-b75n1) (registry code 1380144) (OpenAirDocs) - Registry engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 75-6574 - Year built: 1942 - Airframe hours: 2973 - Engines: Continental 670-6A 220 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Airworthiness certificate: Standard, Aerobatic - Last inspection: Annual, October 1, 2023 - Destination: Same as departure - Airport: KCVH, Hollister Municipal Airport, runway 31, 6,350 × 100 ft, asphalt - Equipment: ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 64; injuries: none; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: basicmed, with waivers/limitations; last flight review November 22, 2023; seat: rear; restraint: 3-point; flight hours: 1,154 total, 477 in this make and model, 1,039 as pilot in command - Flight instructor; age 71; injuries: none; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review November 15, 2022; seat: front; restraint: 3-point; flight hours: 14,335 total, 750 in this make and model, 14,280 as pilot in command, 150 in the last 90 days, 35 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 73 °F, dew point 57 °F - Altimeter: 29.86 inHg - Observed at: KCVH - METAR: METAR KCVH 081735Z AUTO 00000KT 10SM CLR 23/14 A2986 ## Docket (2 files) The files NTSB released with the investigation on February 27, 2025, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=194744. 3.7 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 2.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17482232&FileExtension=pdf&FileName=NTSB%20FORM%206120_signed_Redacted-Rel.pdf - Photos (item 2, PDF, 3 pages, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17622228&FileExtension=pdf&FileName=Photos%20for%20WPR24LA250-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.