# NTSB ANC20CA055: Cessna 182, N8769T, Anchorage, AK, May 30, 2020 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Data collection · Final report - Date: May 29, 2020, 18:30 local (May 30, 2020, 02:30 UTC) - Place: Anchorage, AK · not exact, pilot did not provide location gps - Coordinates: 61.412, -150.597 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=61.4120&lon=-150.5970&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Hard landing](https://openairdocs.org/ntsb-events/092) - 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: Alaska Regional Office - Parties: Federal Aviation Administration - NTSB case key (mKey): 101375 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC20CA055 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/101375/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=101375 - Page: https://openairdocs.org/ntsb/ANC20CA055 ## Probable cause The pilot’s failure to maintain a proper descent rate during landing in gusting wind conditions, which resulted in a hard landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Cessna 182C, 9 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2072708), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: descent rate](https://openairdocs.org/ntsb-findings/01062037): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cessna 182C, 1 case](https://openairdocs.org/ntsb-findings/01062037/cases.md?model=2072708), [All aircraft, 242 cases](https://openairdocs.org/ntsb-findings/01062037/cases.md) - [Wind: sudden wind shift](https://openairdocs.org/ntsb-findings/03034010): Environmental issues › Conditions/weather/phenomena · Effect on operation (probable cause); cases with it: [Cessna 182C, 1 case](https://openairdocs.org/ntsb-findings/03034010/cases.md?model=2072708), [All aircraft, 114 cases](https://openairdocs.org/ntsb-findings/03034010/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Hard landing](https://openairdocs.org/ntsb-events/092) (defining event); cases with it: [Cessna 182C, 3 cases](https://openairdocs.org/ntsb-events/092/sequence.md?model=2072708), [All aircraft, 2,102 cases](https://openairdocs.org/ntsb-events/092/sequence.md) ## Analysis The pilot reported that, while landing into the wind at a remote airstrip, as the airplane descended below the tree line, the airplane experienced “wind shear or turbulence” and the headwind diminished. The airplane lost aerodynamic lift, descended rapidly to the ground, and subsequently landed hard. The engine firewall sustained substantial damage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot also reported that the winds in the area were 25 knots gusting to 30 knots. ## Aircraft - Registration: [N8769T](https://openairdocs.org/aircraft/N8769T), registered now, S/N 52669, built 1960 (OpenAirDocs) - Reported make and model: Cessna 182 (C) - Registry model: [Cessna 182C](https://openairdocs.org/model/cessna-182c) (registry code 2072708) (OpenAirDocs) - Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 52669 - Year built: 1960 - Engines: Continental O-470 reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Departed: PAGQ, Big Lake, AK - Destination: none, Anchorage, AK ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 50; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review August 2, 2019; seat: left; restraint: 3-point; flight hours: 310 total, 300 in this make and model, 295 as pilot in command, 12 in the last 90 days, 10 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 170° at 14 knots, gusting 21 - Visibility: 10 statute miles - Lowest ceiling: 12,000 ft broken - Temperature: 66 °F, dew point 43 °F - Altimeter: 29.84 inHg - Observed at: PANC ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Incident 20200529007199I](https://openairdocs.org/incident/20200529007199I), May 29, 2020: Cessna 182C, Big Lake, AK, Minor damage. Aircraft departed bgq for alexander creek. Foreflight weather brief reported south wind 20 to 25 knots. On the approach to roy strip, once the aircraft… ## Docket (2 files) The files NTSB released with the investigation on August 3, 2021, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=101375. 6.3 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 8 pages, 3.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10081236&FileExtension=pdf&FileName=6120%20master%20FINAL_Redacted-Rel.pdf - Photogaphs (item 2, PDF, 2 pages, 3.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=10080881&FileExtension=pdf&FileName=Photo%20Template%202-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.