# NTSB WPR23LA106: Piper PA-22, N1791P, Sandpoint, ID, January 30, 2023 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: January 29, 2023, 16:00 local (Jan 30, 2023, 00:00 UTC) - Place: Sandpoint, ID - Coordinates: 48.299528, -116.56013 - Nearby events: https://openairdocs.org/map.md?lat=48.2995&lon=-116.5601&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: 3 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Western Pacific Region - Parties: FAA - NTSB case key (mKey): 106694 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR23LA106 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/106694/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=106694 - Page: https://openairdocs.org/ntsb/WPR23LA106 ## Probable cause The pilot’s failure to maintain directional control during landing and subsequent failure to maintain clearance from a snow berm during a go around. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Object/animal/substance: snow/ice](https://openairdocs.org/ntsb-findings/03022060): Environmental issues › Physical environment · Effect on equipment; cases with it: [Piper PA-22, 1 case](https://openairdocs.org/ntsb-findings/03022060/cases.md?model=7102202), [All aircraft, 67 cases](https://openairdocs.org/ntsb-findings/03022060/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot; cases with it: [Piper PA-22, 12 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=7102202), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Piper PA-22, 9 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=7102202), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/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: [Piper PA-22, 12 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=7102202), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [Piper PA-22, 2 cases](https://openairdocs.org/ntsb-events/060/sequence.md?model=7102202), [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md) - [Landing-aborted after touchdown: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490); cases with it: [Piper PA-22, 1 case](https://openairdocs.org/ntsb-events/490/sequence.md?model=7102202), [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) ## Analysis The pilot reported that during a landing attempt, after touchdown, he raised the flaps and the right wing lifted. He added right aileron input, but the airplane then turned about 60° to the left. The pilot was unable to correct the turn with rudder and initiated a go around, at which time the airplane collided with a snow berm, and the pilot continued. On the second landing, the airplane touched down normally, but the landing gear collapsed. The airplane sustained substantial damage to the fuselage. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N1791P](https://openairdocs.org/aircraft/N1791P), registered now, S/N 22-2564, built 1954 (OpenAirDocs) - Reported make and model: PIPER PA-22 (150) - Registry model: [Piper PA-22](https://openairdocs.org/model/piper-pa-22) (registry code 7102202) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 22-2564 - Year built: 1954 - Airframe hours: 3322.93 - Engines: Lycoming O-320-A2B 150 hp reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, September 5, 2022 - Departed: KSZT, Sandpoint, ID - Destination: Same as departure - Airport: KSZT, Sandpoint, runway 02, 5,501 × 75 ft, asphalt - Equipment: Unknown ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 37; injuries: none; private; airplane ratings: single-engine sea, single-engine land; medical: class 3, without waivers/limitations; last flight review September 30, 2022; seat: left; restraint: 4-point; flight hours: 300 total, 35 in this make and model, 237 as pilot in command, 5 in the last 90 days, 1 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 19 °F, dew point -4 °F - Altimeter: 30.44 inHg - Observed at: KSZT - METAR: METAR KSZT 292315Z AUTO 00000KT 10SM CLR M07/M20 A3044 RMK AO2 ## 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 20230129003569A](https://openairdocs.org/incident/20230129003569A), Jan 29, 2023: Piper PA-22, Sandpoint, ID, Substantial damage. During a touch and go maneuver the pilot momentarily lost directional control while lowering the flap handle to retract the flaps. After retracting the flaps… ## Docket (2 files) The files NTSB released with the investigation on June 23, 2023, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=106694. 5.7 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 5.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=15589821&FileExtension=pdf&FileName=6120%20N1791P_Redacted-Rel.pdf - Photos (item 2, PDF, 1 page, 557 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=15590484&FileExtension=pdf&FileName=Accident%20Photograph%20N1791P-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.