# NTSB WPR24LA098: Cessna 182A, N6323B, Weippe, ID, February 22, 2024 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: February 22, 2024, 13:25 local (21:25 UTC) - Place: Weippe, ID - Coordinates: 46.350675, -115.977 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=46.3507&lon=-115.9770&mi=10 - Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping) - Defining event: [Initial climb: Part(s) separation from AC](https://openairdocs.org/ntsb-events/338) - 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): 193862 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR24LA098 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/193862/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=193862 - Page: https://openairdocs.org/ntsb/WPR24LA098 ## Probable cause The pilot’s failure to secure the oil filler cap during the preflight inspection, which resulted in a precautionary landing on the soft surface and subsequent nose over. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Inspection: preflight inspection](https://openairdocs.org/ntsb-findings/02061510): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Cessna 182A, 4 cases](https://openairdocs.org/ntsb-findings/02061510/cases.md?model=2072704), [All aircraft, 551 cases](https://openairdocs.org/ntsb-findings/02061510/cases.md) - [Eng oil sys (airframe furnish): oil storage (airframe furnish)](https://openairdocs.org/ntsb-findings/01057910): Aircraft › Aircraft power plant · Incorrect use/operation (probable cause); cases with it: [Cessna 182A, 1 case](https://openairdocs.org/ntsb-findings/01057910/cases.md?model=2072704), [All aircraft, 3 cases](https://openairdocs.org/ntsb-findings/01057910/cases.md) - [Runway/land/takeoff/taxi surface: snow/slush/ice covered surface](https://openairdocs.org/ntsb-findings/03023015): Environmental issues › Physical environment · Effect on equipment (probable cause); cases with it: [Cessna 182A, 1 case](https://openairdocs.org/ntsb-findings/03023015/cases.md?model=2072704), [All aircraft, 219 cases](https://openairdocs.org/ntsb-findings/03023015/cases.md) - [Runway/land/takeoff/taxi surface: soft surface](https://openairdocs.org/ntsb-findings/03023020): Environmental issues › Physical environment · Effect on equipment (probable cause); cases with it: [Cessna 182A, 2 cases](https://openairdocs.org/ntsb-findings/03023020/cases.md?model=2072704), [All aircraft, 264 cases](https://openairdocs.org/ntsb-findings/03023020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Initial climb: Part(s) separation from AC](https://openairdocs.org/ntsb-events/338) (defining event); cases with it: [Cessna 182A, 4 cases](https://openairdocs.org/ntsb-events/338/sequence.md?model=2072704), [All aircraft, 563 cases](https://openairdocs.org/ntsb-events/338/sequence.md) - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Cessna 182A, 15 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=2072704), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot reported that, as he exited the airport traffic pattern, he noticed that engine oil was accumulating on the left portion of the windscreen, and he decided to make a precautionary landing. During the approach, the left portion of the windscreen was obscured, and the pilot switched from the left to the right seat. The pilot fastened his seat belt, continued the approach, and touched down on a soft spot on the snow-covered turf runway just short of his aim point. The airplane’s nose landing gear dug into the soft surface and the airplane nosed over. Additionally, the pilot reported that during his postflight inspection, he noticed that the oil filler cap was separated from the filler port and dangling by its security chain. The pilot opined that during his preflight inspection, he saw the oil filler cap but did not physically twist the cap to ensure its security. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operations. ## Aircraft - Registration: [N6323B](https://openairdocs.org/aircraft/N6323B), registered now, S/N 34223, built 1957 (OpenAirDocs) - Reported make and model: CESSNA 182A - Registry model: [Cessna 182A](https://openairdocs.org/model/cessna-182a) (registry code 2072704) (OpenAirDocs) - Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 34223 - Year built: 1957 - Airframe hours: 5015 - Engines: CONT MOTOR O-470-L 230 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, February 21, 2024, 0.4 hours before - Destination: Same as departure - Airport: 3ID2, The Last Resort, runway 9, 1,700 × 70 ft, grass/turf - Equipment: Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 71; injuries: none; flight instructor, airline transport, commercial; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review July 24, 2022; seat: right; restraint: lap only; flight hours: 24,800 total, 745 in this make and model, 98 in the last 90 days, 22 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Temperature: 45 °F, dew point 39 °F - Altimeter: 30.35 inHg - Observed at: KP69, 20 nm away - METAR: METAR KP69 221652Z AUTO 00000KT 07/04 A3035 RMK AO1 SLP287 P0004 T00720039= ## 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 20240222002799A](https://openairdocs.org/incident/20240222002799A), Feb 22, 2024: Cessna 182A, Weippe, ID, Substantial damage. After departing grass runway pilot noticed oil on the windscreen and returned to the airport for precautionary landing. Upon landing roll-out the nose wheel… ## Docket (2 files) The files NTSB released with the investigation on August 15, 2024, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=193862. 2.6 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 2.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17133667&FileExtension=pdf&FileName=6120_1_Redacted-Rel.pdf - Photograph (item 2, PDF, 1 page, 439 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17133548&FileExtension=pdf&FileName=Photograph-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.