# NTSB ANC13CA031: Nelson Larry L WAG Aero 2+2, N86LN, Chickaloon, AK, March 8, 2013 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: March 8, 2013, 18:00 local (22:00 UTC) - Place: Chickaloon, AK - Coordinates: 61.668056, -148.270004 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=61.6681&lon=-148.2700&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Abnormal runway contact](https://openairdocs.org/ntsb-events/090) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report June 24, 2013 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Federal Aviation Administration - NTSB case key (mKey): 86382 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC13CA031 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/86382/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=86382 - Page: https://openairdocs.org/ntsb/ANC13CA031 ## Probable cause The pilot's delayed decision to abort the landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Aircraft capability](https://openairdocs.org/ntsb-findings/01061000): Aircraft › Aircraft oper/perf/capability · Capability exceeded (probable cause); cases with it: [Nelson Larry L WAG AERO 2+2, 1 case](https://openairdocs.org/ntsb-findings/01061000/cases.md?model=05655YA), [All aircraft, 57 cases](https://openairdocs.org/ntsb-findings/01061000/cases.md) - [Action: delayed action](https://openairdocs.org/ntsb-findings/02041025): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Nelson Larry L WAG AERO 2+2, 1 case](https://openairdocs.org/ntsb-findings/02041025/cases.md?model=05655YA), [All aircraft, 894 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md) - [Runway/land/takeoff/taxi surface](https://openairdocs.org/ntsb-findings/03023000): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Nelson Larry L WAG AERO 2+2, 1 case](https://openairdocs.org/ntsb-findings/03023000/cases.md?model=05655YA), [All aircraft, 253 cases](https://openairdocs.org/ntsb-findings/03023000/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: Abnormal runway contact](https://openairdocs.org/ntsb-events/090) (defining event); cases with it: [Nelson Larry L WAG AERO 2+2, 1 case](https://openairdocs.org/ntsb-events/090/sequence.md?model=05655YA), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) - [Approach-VFR go-around: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Nelson Larry L WAG AERO 2+2, 1 case](https://openairdocs.org/ntsb-events/470/sequence.md?model=05655YA), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot was landing his wheel/ski-equipped homebuilt airplane on a remote, frozen, snow-covered lake that was surrounded by trees. After touchdown, the pilot noticed that the airplane was at a high groundspeed and that there was very little drag on the skis. With only 600 feet remaining to the tree line, he added power to abort the landing. He reported that, after he aborted the landing, the airplane could not maintain climb speed or clear the trees at the end of the landing site. In an attempt to cushion the impact, he applied full flaps. The airplane impacted trees, sustaining substantial damage to the wings and fuselage. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative The pilot was attempting to land his wheel/ski-equipped homebuilt airplane on a remote frozen snow-covered lake that was surrounded by trees. After touchdown, the pilot noticed a high ground speed and very little drag on the skis, and with only 600 feet remaining to the tree line, he added power to abort the landing. After aborting the attempted landing, he said the airplane could not out climb the tree-covered terrain at the end of the site. In an attempt to cushion the impact, he applied full flaps and the airplane impacted trees. The airplane sustained substantial damage to the wings and fuselage. The pilot reported there were no preaccident mechanical anomalies with the airplane. ## Aircraft - Registration: [N86LN](https://openairdocs.org/deregistered/N86LN-2017-10-26), registration cancelled 2017-10-26, S/N 348 (OpenAirDocs) - Reported make and model: NELSON LARRY L WAG AERO 2+2 - Registry model: [Nelson Larry L WAG AERO 2+2](https://openairdocs.org/model/nelson-larry-l-wag-aero-2-plus-2) (registry code 05655YA) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 348 - Airframe hours: 1011 - Engines: LYCOMING O-320 SERIES 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Moody William J - Registered owner: Moody William J - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, June 15, 2012 - Departed: PABV, Chugiak, AK - Destination: PVT, Chickaloon, AK - Airport: PVT, Private, runway 27, snow ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 50; injuries: minor; military, commercial, airline transport, flight engineer; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review April 13, 2011; seat: left; flight hours: 7,022 total, 148 in this make and model, 2,074 as pilot in command, 13 in the last 90 days, 7 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Visibility: 60 statute miles - Lowest ceiling: none - Temperature: 25 °F ## 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 20130308010039A](https://openairdocs.org/incident/20130308010039A), Mar 8, 2013: Nelson Larry L WAG AERO 2+2, Chickaloon, AK, Substantial damage. After touch down on snow covered lake pilot realized that high ground speed would not enable stopping in remaining distance. Decision was made to takeoff.… ## Docket (1 files) The files NTSB released with the investigation on April 18, 2013, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=86382. 3.9 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 3.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40389374&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.