# NTSB ANC14CA009: Cessna A185F, N8310Q, Nenana, AK, November 23, 2013 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: November 23, 2013, 14:15 local (18:15 UTC) - Place: Nenana, AK - Coordinates: 64.470497, -148.570129 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=64.4705&lon=-148.5701&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: 1 uninjured - Status: Completed, report February 4, 2014 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Federal Aviation Administration - NTSB case key (mKey): 88507 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC14CA009 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/88507/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=88507 - Page: https://openairdocs.org/ntsb/ANC14CA009 ## Probable cause The pilot's failure to maintain directional control of the airplane, which resulted in a collision with terrain. ## 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 A185F, 71 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2072821), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Runway/land/takeoff/taxi surface: snow/slush/ice covered surface](https://openairdocs.org/ntsb-findings/03023015): Environmental issues › Physical environment · Awareness of condition; cases with it: [Cessna A185F, 7 cases](https://openairdocs.org/ntsb-findings/03023015/cases.md?model=2072821), [All aircraft, 219 cases](https://openairdocs.org/ntsb-findings/03023015/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: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Cessna A185F, 36 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2072821), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cessna A185F, 75 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2072821), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The pilot was landing a wheel/ski equipped airplane on a frozen, wind-blown, ice and snow-covered lake. He had established a landing area earlier in the day, by laying down ski tracks with a friends ski equipped airplane. Upon touchdown, the airplane did not slow as expected, and it began to veer off the proposed landing area. While attempting to correct for the veer, the right ski struck a hole hidden underneath the snow and ice, and the right main landing gear leg separated from the airplane. The airplane sustained substantial damage to the right wing and aileron. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative The pilot was landing a wheel/ski equipped airplane on a frozen, wind-blown, ice and snow-covered lake. He had established a landing area earlier in the day, by laying down ski tracks with a friends ski equipped airplane. Upon touchdown, the airplane did not slow as expected, and it began to veer off the proposed landing area. While attempting to correct for the veer, the right ski struck a hole hidden underneath the snow and ice, and the right main landing gear leg separated from the airplane. The airplane sustained substantial damage to the right wing and aileron. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N8310Q](https://openairdocs.org/aircraft/N8310Q), registered now, S/N 18503650, built 1978 (OpenAirDocs) - Reported make and model: CESSNA A185F - Registry model: [Cessna A185F](https://openairdocs.org/model/cessna-a185f) (registry code 2072821) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 18503650 - Year built: 1978 - Airframe hours: 3914 - Engines: Continental Motors IO 520 300 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Maher Michael P Trustee - Registered owner: Maher Michael P Trustee - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 28, 2012 - Departed: PAFA, Fairbanks, AK - Destination: Nenana, AK - Equipment: Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 69; injuries: none; flight instructor, flight engineer, airline transport; airplane ratings: multi-engine land, single-engine land, single-engine sea; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review July 24, 2013; seat: left; flight hours: 22,985 total, 2,100 in this make and model, 12,337 as pilot in command, 14 in the last 90 days, 1 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 75 statute miles - Temperature: 5 °F - Altimeter: 29.73 inHg ## 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 20131123024609A](https://openairdocs.org/incident/20131123024609A), Nov 23, 2013: Cessna A185F, Wien Lake, AK, Substantial damage. Upon landing ski caught hole in the ice aircraft rotated immediately 90 degrees damaging the right wing tip, right gear assembly and propeller. ## Other investigations on N8310Q (1) 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 ANC97LA058](https://openairdocs.org/ntsb/ANC97LA058), Apr 17, 1997: Cessna 185F (N8310Q), Manley, AK, substantial damage. Probable cause: the pilot's inadequate compensation for crosswind conditions and failure to maintain directional control of the airplane during the landing run. Factors relating to the accident were: frozen terrain,… ## Docket (1 files) The files NTSB released with the investigation on January 23, 2014, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=88507. 1.4 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40406409&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.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.