# NTSB CEN12CA403: Ayres S2R-G10, N3299Z, Minden, NE, June 28, 2012 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: June 28, 2012, 06:45 local (11:45 UTC) - Place: Minden, NE - Coordinates: 40.51472, -98.945556 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=40.5147&lon=-98.9456&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Defining event: [Maneuvering-low-alt flying: Turbulence encounter](https://openairdocs.org/ntsb-events/360) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report October 4, 2012 - Report: Approved by Office Director - NTSB office: Central Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 84121 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN12CA403 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/84121/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=84121 - Page: https://openairdocs.org/ntsb/CEN12CA403 ## Probable cause The pilot’s failure to maintain clearance from the wake turbulence from a previous pass. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Ayres S2R-G10, 1 case](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=0970217), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md) - [Environmental issues](https://openairdocs.org/ntsb-findings/03020000): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Ayres S2R-G10, 1 case](https://openairdocs.org/ntsb-findings/03020000/cases.md?model=0970217), [All aircraft, 24 cases](https://openairdocs.org/ntsb-findings/03020000/cases.md) - [Turbulence: wake turbulence](https://openairdocs.org/ntsb-findings/03032025): Environmental issues › Conditions/weather/phenomena · Effect on operation (probable cause); cases with it: [Ayres S2R-G10, 1 case](https://openairdocs.org/ntsb-findings/03032025/cases.md?model=0970217), [All aircraft, 47 cases](https://openairdocs.org/ntsb-findings/03032025/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: Turbulence encounter](https://openairdocs.org/ntsb-events/360) (defining event); cases with it: [Ayres S2R-G10, 1 case](https://openairdocs.org/ntsb-events/360/sequence.md?model=0970217), [All aircraft, 423 cases](https://openairdocs.org/ntsb-events/360/sequence.md) - [Maneuvering-low-alt flying: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Ayres S2R-G10, 2 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=0970217), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot reported that during the aerial application flight he made the first pass over a field where the wind was light and variable. He then turned around and flew a pass over a tree line and descended "maybe a little low," where he flew the airplane through the wake turbulence from his previous pass. According to the pilot, the turbulence disrupted the "round out" to the field and the airplane's wheels and left wing contacted the corn. The airplane turned sideways, slid backwards, and its empennage sustained substantial damage when it deformed. The pilot indicated that there were no mechanical malfunctions with the airplane during the flight. ## Factual narrative The pilot reported that during his aerial application flight he had made his first pass over a field where the wind was light and variable. He turned around and flew a pass over a tree line and descended "maybe a little low" where he flew the airplane through the wake turbulence from his previous pass. According to the pilot, the turbulence disrupted the "round out" to the field and the airplane's wheels and left wing contacted the corn. The airplane turned sideways, slid backwards, and it's empennage sustained substantial damage when it deformed. The pilot indicated that there were no mechanical malfunctions with the airplane during the flight. ## Aircraft - Registration: [N3299Z](https://openairdocs.org/deregistered/N3299Z-2015-12-12), registration cancelled 2015-12-12, S/N G10-120, built 1996 (OpenAirDocs) - Reported make and model: AYRES CORPORATION S2R-G10 - Registry model: [Ayres S2R-G10](https://openairdocs.org/model/ayres-s2r-g10) (registry code 0970217) (OpenAirDocs) - Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs) - Category: Airplane - Serial number: G10-120 - Airframe hours: 5294 - Engines: Garrett TPE-331 turbo prop - Damage: Substantial damage - Flight: Aerial application, Part 137 - Operator: Campbell Aerial Spraying Inc - Registered owner: Campbell Aerial Spraying Inc - Airworthiness certificate: Special, Restricted (Special) - Last inspection: 100 hour, March 1, 2012 - Departed: Minden, NE - Destination: Minden, NE - Flight plan: Unknown ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 23; injuries: none; commercial; airplane ratings: single-engine land; medical: class 2, without waivers/limitations; seat: single; flight hours: 1,000 total, 117 in this make and model, 1,000 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 10° at 4 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 70 °F, dew point 64 °F - Altimeter: 29.95 inHg - Observed at: EAR ## 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 20120628013249A](https://openairdocs.org/incident/20120628013249A), Jun 28, 2012: Ayres Corporation S2R-G10, Minden, NE, Destroyed. At 0645 CDT on June 28, 2011, N3299Z, Ayres corp. S2R-G10, was engaged in agricultural aerial spray operations over a cornfield near the intersection of the 35… ## Docket (1 files) The files NTSB released with the investigation on July 26, 2012, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=84121. 3.3 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 3.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40373022&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.