# NTSB WPR20CA179: Ayres S2R, N40226, Lenore, ID, June 12, 2020 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Data collection · Final report - Date: June 12, 2020, 15:00 local (22:00 UTC) - Place: Lenore, ID - Coordinates: 46.454723, -116.524169 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=46.4547&lon=-116.5242&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Defining event: [Maneuvering-low-alt flying: Low altitude operation/event](https://openairdocs.org/ntsb-events/220) - 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): 101431 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR20CA179 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/101431/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=101431 - Page: https://openairdocs.org/ntsb/WPR20CA179 ## Probable cause The pilot's failure to maintain clearance from power lines while maneuvering during an aerial application flight, which resulted in a wire strike. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Attention/monitoring: monitoring environment](https://openairdocs.org/ntsb-findings/02021545): Personnel issues › Psychological · Pilot (probable cause); cases with it: [Ayres S2R-T34, 3 cases](https://openairdocs.org/ntsb-findings/02021545/cases.md?model=0970106), [All aircraft, 809 cases](https://openairdocs.org/ntsb-findings/02021545/cases.md) - [Object/animal/substance: wire](https://openairdocs.org/ntsb-findings/03022032): Environmental issues › Physical environment · Awareness of condition (probable cause); cases with it: [Ayres S2R-T34, 6 cases](https://openairdocs.org/ntsb-findings/03022032/cases.md?model=0970106), [All aircraft, 588 cases](https://openairdocs.org/ntsb-findings/03022032/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Maneuvering-low-alt flying: Low altitude operation/event](https://openairdocs.org/ntsb-events/220) (defining event); cases with it: [Ayres S2R-T34, 6 cases](https://openairdocs.org/ntsb-events/220/sequence.md?model=0970106), [All aircraft, 780 cases](https://openairdocs.org/ntsb-events/220/sequence.md) - [Maneuvering-low-alt flying: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Ayres S2R-T34, 8 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=0970106), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot reported that prior to conducting an aerial application on a field, he circled the field twice to look for obstacles. As he completed his first aerial application pass, he observed power lines that he did not previously see. Being too close to climb above them, the pilot chose to fly underneath the power lines. The airplane subsequently struck a guy wire and impacted terrain. The fuselage and wings were substantially damaged. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N40226](https://openairdocs.org/aircraft/N40226), registered now, S/N T34-046DC, built 1981 (OpenAirDocs) - Reported make and model: Ayres S2R (T34) - Registry model: [Ayres S2R-T34](https://openairdocs.org/model/ayres-s2r-t34) (registry code 0970106) (OpenAirDocs) - Registry engine: [Pratt & Whitney Canada PT6A-60A](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-60a) (registry code 52043, turbo-prop) (OpenAirDocs) - Category: Airplane - Serial number: T34-046DC - Year built: 1981 - Engines: Pratt & Whitney PT6-34AG 750 horsepower turbo prop - Damage: Destroyed - Flight: Aerial application, Part 137 - Operator: CJ Air LLC - Registered owner: CJ Air LLC - Airworthiness certificate: Special, Restricted (Special) - Departed: S89, Craigmont, ID - Destination: S89, Craigmont, ID ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 55; injuries: none; commercial; airplane ratings: single-engine land; medical: class 2, without waivers/limitations; last flight review July 26, 2018; seat: center; restraint: 4-point; flight hours: 9,693 total, 4,000 in this make and model, 9,693 as pilot in command, 395 in the last 90 days, 326 in the last 30 days, 12 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 81 °F, dew point 57 °F - Altimeter: 29.84 inHg - Observed at: KLWS, 21 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 20200612009519A](https://openairdocs.org/incident/20200612009519A), Jun 12, 2020: Ayres Corporation S2R-T34, Gifford, ID, Destroyed. After circling field twice to survey/ set up for spraying crop and look for obstructions, pilot approached field to spray form east to west . At last second he… ## Docket (2 files) The files NTSB released with the investigation on September 2, 2020, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=101431. 891 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 430 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40486551&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Photo Array (item 2, .PDF, 461 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40486552&FileExtension=.PDF&FileName=Photo%20Array-Master.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.