# NTSB ANC13CA077: Aviat A-1B, N286AM, Arctic Village, AK, August 9, 2013 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: August 9, 2013, 13:00 local (21:00 UTC) - Place: Arctic Village, AK - Coordinates: 68.118057, -147.201385 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=68.1181&lon=-147.2014&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Defining event: [Maneuvering: Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report December 2, 2013 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Federal Aviation Administration - NTSB case key (mKey): 87725 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC13CA077 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/87725/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=87725 - Page: https://openairdocs.org/ntsb/ANC13CA077 ## Probable cause The pilot's failure to maintain clearance from terrain while maneuvering at low altitude. ## 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: [Aviat A-1B, 33 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2210406), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Maneuvering: Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120) (defining event); cases with it: [Aviat A-1B, 4 cases](https://openairdocs.org/ntsb-events/120/sequence.md?model=2210406), [All aircraft, 1,074 cases](https://openairdocs.org/ntsb-events/120/sequence.md) ## Analysis The pilot stated that while maneuvering the airplane to make a low pass of a remote gravel bar, he inadvertently lost altitude and the right wing struck the ground. The airplane sustained substantial damage to the fuselage, empennage, wings and lift struts. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. In the recommendation section of the NTSB Accident/Incident Reporting Form 6120.1, the pilot stated that the accident may have been prevented if he had maintained awareness of wind conditions and how it affects aircraft performance. ## Factual narrative The pilot stated that while maneuvering the airplane to make a low pass of a remote gravel bar, he inadvertently lost altitude and the right wing struck the ground. The airplane sustained substantial damage to the fuselage, empennage, wings and lift struts. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. In the recommendation section of the NTSB Accident/Incident Reporting Form 6120.1, the pilot stated that the accident may have been prevented if he had maintained awareness of wind conditions and how it affects aircraft performance. ## Aircraft - Registration: [N286AM](https://openairdocs.org/aircraft/N286AM), registered now, S/N 2286 (OpenAirDocs) - Reported make and model: AVIAT AIRCRAFT INC A-1B - Registry model: [Aviat A-1B](https://openairdocs.org/model/aviat-a-1b) (registry code 2210406) (OpenAirDocs) - Category: Airplane - Serial number: 2286 - Airframe hours: 918 - Engines: Lycoming O-360 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Josefsohn Pierre - Registered owner: Josefsohn Pierre - Airworthiness certificate: Standard, Normal - Last inspection: Annual, June 7, 2013 - Departed: Deadhorse, AK - Destination: Bettles, AK ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 62; injuries: none; private; airplane ratings: single-engine sea, single-engine land, multi-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review March 3, 2012; seat: front; flight hours: 2,850 total, 168 in this make and model, 2,650 as pilot in command, 140 in the last 90 days, 50 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 60° at 11 knots - Visibility: 10 statute miles - Lowest ceiling: 12,000 ft broken - Temperature: 63 °F, dew point 50 °F - Altimeter: 29.71 inHg - Observed at: PARC, 30 nm away ## 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 20130809015759A](https://openairdocs.org/incident/20130809015759A), Aug 9, 2013: Aviat Aircraft Inc A-1B, Bettles, AK, Substantial damage. On maneuvering over uneven terrain lost lift, hit right wing on ground and crashed. ## Docket (1 files) The files NTSB released with the investigation on November 20, 2013, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=87725. 473 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 473 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40399822&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.