# NTSB WPR23LA180: Piper PA-22-150, N6058D, Ariel, WA, May 8, 2023 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: May 7, 2023, 19:30 local (May 8, 2023, 02:30 UTC) - Place: Ariel, WA · private property/field - Coordinates: 45.9947, -122.38851 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=45.9947&lon=-122.3885&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: 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): 114707 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR23LA180 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/114707/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=114707 - Page: https://openairdocs.org/ntsb/WPR23LA180 ## Probable cause The pilot’s failure to maintain aircraft control during the landing roll, resulting in a nose over. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: surface speed/braking](https://openairdocs.org/ntsb-findings/01062045): Aircraft › Aircraft oper/perf/capability · Capability exceeded; cases with it: [Piper PA-22-150, 5 cases](https://openairdocs.org/ntsb-findings/01062045/cases.md?model=7102210), [All aircraft, 238 cases](https://openairdocs.org/ntsb-findings/01062045/cases.md) - [Runway/land/takeoff/taxi surface: soft surface](https://openairdocs.org/ntsb-findings/03023020): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Piper PA-22-150, 2 cases](https://openairdocs.org/ntsb-findings/03023020/cases.md?model=7102210), [All aircraft, 264 cases](https://openairdocs.org/ntsb-findings/03023020/cases.md) - [Performance/control parameters: pitch control](https://openairdocs.org/ntsb-findings/01062022): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Piper PA-22-150, 1 case](https://openairdocs.org/ntsb-findings/01062022/cases.md?model=7102210), [All aircraft, 526 cases](https://openairdocs.org/ntsb-findings/01062022/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Piper PA-22-150, 52 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=7102210), [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: Nose over/nose down](https://openairdocs.org/ntsb-events/096) (defining event); cases with it: [Piper PA-22-150, 22 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=7102210), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot of the tailwheel equipped airplane reported that he was attempting to land in a field, adjacent to a friend’s house. During the landing roll, the airplane hit an unexpected bump and the tail lifted into the air. The pilot applied brakes in tall grass, and the airplane nosed over and came to rest inverted. The right-wing strut, vertical stabilizer, and rudder were substantially damaged. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N6058D](https://openairdocs.org/aircraft/N6058D), registered now, S/N 22-4711, built 1956 (OpenAirDocs) - Reported make and model: PIPER PA-22-150 - Registry model: [Piper PA-22-150](https://openairdocs.org/model/piper-pa-22-150) (registry code 7102210) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 22-4711 - Year built: 1956 - Airframe hours: 2416 - Engines: LYCOMING 0-320 SERIES 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, July 17, 2022, 64 hours before - Departed: W27, Woodland, WA - Destination: Same as departure - Equipment: None ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 36; injuries: none; commercial; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review October 13, 2022; seat: left; restraint: 4-point; flight hours: 793.1 total, 86 in this make and model, 727.5 as pilot in command, 21.8 in the last 90 days, 12.2 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 62 °F, dew point 38 °F - Altimeter: 2996.00 inHg - Observed at: KSPB, 24 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 20230507007799A](https://openairdocs.org/incident/20230507007799A), May 7, 2023: Piper PA-22-150, Ariel, WA, Substantial damage. Departed from woodland airport (W27) around 1900 hrs to move plane to friends field adjacent to house. Prior to landing airman was able to walk and inspect the… ## Other investigations on N6058D (2) 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 ANC96LA028](https://openairdocs.org/ntsb/ANC96LA028), Mar 2, 1996: Piper PA-22 (N6058D), Cooper Landing, AK, substantial damage. Probable cause: the pilot's selection of unsuitable terrain for landing. Soft snow conditions were a factor in the accident. - [NTSB ANC91LA116](https://openairdocs.org/ntsb/ANC91LA116), Aug 7, 1991: Piper PA-22 (N6058D), Gulkana, AK, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE DURING THE LANDING ROLL. CONTRIBUTING TO THE ACCIDENT WAS THE UNSUITABLE TERRAIN SELECTED BY THE PILOT FOR LANDING WHICH WAS ROUGH,… ## Docket (2 files) The files NTSB released with the investigation on September 8, 2023, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=114707. 2.8 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=15722388&FileExtension=pdf&FileName=WPR23LA180_6120_flat_Redacted-Rel.pdf - Photos (item 2, PDF, 2 pages, 735 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=15722157&FileExtension=pdf&FileName=WPR23LA180_508-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.