# NTSB WPR22LA013: Cessna 172N, N832DC, Laurier, WA, October 17, 2021 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: October 17, 2021, 15:55 local (22:55 UTC) - Place: Laurier, WA - Coordinates: 48.998379, -118.22259 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=48.9984&lon=-118.2226&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300) - 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: FAA - NTSB case key (mKey): 104120 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR22LA013 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/104120/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=104120 - Page: https://openairdocs.org/ntsb/WPR22LA013 ## Probable cause The flight instructor’s delayed remedial action to prevent the airplane from landing long which, resulted in a runway overrun and collision with terrain. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Info processing/decision: decision making/judgment](https://openairdocs.org/ntsb-findings/02041520): Personnel issues › Action/decision · Instructor/check pilot (probable cause); cases with it: [Cessna 172N, 41 cases](https://openairdocs.org/ntsb-findings/02041520/cases.md?model=2072434), [All aircraft, 3,098 cases](https://openairdocs.org/ntsb-findings/02041520/cases.md) - [Action: delayed action](https://openairdocs.org/ntsb-findings/02041025): Personnel issues › Action/decision · Instructor/check pilot (probable cause); cases with it: [Cessna 172N, 19 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md?model=2072434), [All aircraft, 894 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md) - [Object/animal/substance](https://openairdocs.org/ntsb-findings/03022000): Environmental issues › Physical environment · Effect on equipment (probable cause); cases with it: [Cessna 172N, 4 cases](https://openairdocs.org/ntsb-findings/03022000/cases.md?model=2072434), [All aircraft, 224 cases](https://openairdocs.org/ntsb-findings/03022000/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: Runway excursion](https://openairdocs.org/ntsb-events/300) (defining event); cases with it: [Cessna 172N, 81 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=2072434), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) ## Analysis The flight instructor reported that, the student pilot was making the landing to the 1,975 ft gravel runway and landed about midpoint. The flight instructor came on the flight controls and applied brakes, but the airplane’s left wing impacted terrain and vegetation before the airplane came to rest, about 100 ft beyond the departure end of the runway. The airplane sustained substantial damage to the left wing and wing root. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N832DC](https://openairdocs.org/aircraft/N832DC), registered now, S/N 17271180, built 1979 (OpenAirDocs) - Reported make and model: CESSNA 172N - Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs) - Registry engine: [Lycoming O-320-H2AD](https://openairdocs.org/engine/lycoming-o-320-h2ad) (registry code 42131, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17271180 - Year built: 1979 - Airframe hours: 15400 - Engines: Lycoming O-320-H2AD 160 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Daniel J. Case - Registered owner: Daniel J. Case - Airworthiness certificate: Standard, Normal - Departed: DEW, Deer Park, WA - Destination: Same as departure - Airport: 69S, Avey Fld, runway 17/35, 1,975 × 40 ft, gravel - Equipment: ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 60; injuries: none; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review October 27, 2020; seat: right; restraint: 3-point; flight hours: 2,600 total, 2,100 in this make and model - Student pilot; age 23; injuries: none; medical: class 3, without waivers/limitations; seat: left; restraint: 3-point; flight hours: 50 total, 50 in this make and model, 16.2 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 4 knots - Temperature: 66 °F, dew point 39 °F - Observed at: CWYY, 48 nm away - METAR: CWYY 172300Z AUTO 18004KT 19/04 RMK AO1 SLP023 T01920039 56014 ## 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 20211017018079A](https://openairdocs.org/incident/20211017018079A), Oct 17, 2021: Cessna 172N, Laurier, WA, Substantial damage. The accident occurred on October 17, 2021, at approximately 1555 local time. A CFI and student pilot were practicing short/soft field landings at Avey Field… ## Docket (4 files) The files NTSB released with the investigation on April 20, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=104120. 3.2 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 2.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13454077&FileExtension=pdf&FileName=6120_1_Redacted-Rel.pdf - NTSB form 6120_1 complete pilot narrative (item 2, PDF, 2 pages, 72 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13454847&FileExtension=pdf&FileName=6120_1%20Complete%20Narrative-Rel.pdf - Memorandum for record a�� pilot operating handbook excerpts (item 3, PDF, 4 pages, 304 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13534164&FileExtension=pdf&FileName=Cesssna%20172N%20POH%20Excerpts-Rel.pdf - Photographs (item 4, PDF, 2 pages, 341 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13454837&FileExtension=pdf&FileName=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.