# NTSB WPR14CA294: Thrush S2RHG T65, N4036G, Parma, ID, July 16, 2014 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: July 16, 2014, 10:00 local (16:00 UTC) - Place: Parma, ID - Coordinates: 43.77861, -116.921943 - Nearby events: https://openairdocs.org/map.md?lat=43.7786&lon=-116.9219&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff: Runway excursion](https://openairdocs.org/ntsb-events/300) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report September 30, 2014 - Report: Approved by Office Director - NTSB office: Western Pacific Region - NTSB case key (mKey): 89672 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR14CA294 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/89672/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=89672 - Page: https://openairdocs.org/ntsb/WPR14CA294 ## Probable cause The pilot's decision to take off with a tailwind, which resulted in the airplane not attaining sufficient airspeed for takeoff. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: airspeed](https://openairdocs.org/ntsb-findings/01062010): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Thrush S2RHG-T65, 1 case](https://openairdocs.org/ntsb-findings/01062010/cases.md?model=0970222), [All aircraft, 1,681 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md) - [Action: incorrect action selection](https://openairdocs.org/ntsb-findings/02041010): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Thrush S2RHG-T65, 1 case](https://openairdocs.org/ntsb-findings/02041010/cases.md?model=0970222), [All aircraft, 397 cases](https://openairdocs.org/ntsb-findings/02041010/cases.md) - [Wind: tailwind](https://openairdocs.org/ntsb-findings/03034015): Environmental issues › Conditions/weather/phenomena · Effect on operation; cases with it: [Thrush S2RHG-T65, 1 case](https://openairdocs.org/ntsb-findings/03034015/cases.md?model=0970222), [All aircraft, 594 cases](https://openairdocs.org/ntsb-findings/03034015/cases.md) - [Info processing/decision: decision making/judgment](https://openairdocs.org/ntsb-findings/02041520): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Thrush S2RHG-T65, 1 case](https://openairdocs.org/ntsb-findings/02041520/cases.md?model=0970222), [All aircraft, 3,098 cases](https://openairdocs.org/ntsb-findings/02041520/cases.md) - [Object/animal/substance: fence/fence post](https://openairdocs.org/ntsb-findings/03022047): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Thrush S2RHG-T65, 1 case](https://openairdocs.org/ntsb-findings/03022047/cases.md?model=0970222), [All aircraft, 313 cases](https://openairdocs.org/ntsb-findings/03022047/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Takeoff: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Thrush S2RHG-T65, 1 case](https://openairdocs.org/ntsb-events/470/sequence.md?model=0970222), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) - [Takeoff: Runway excursion](https://openairdocs.org/ntsb-events/300) (defining event); cases with it: [Thrush S2RHG-T65, 2 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=0970222), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) ## Analysis The pilot stated that he was on his sixth chemical application load of the day. He had a full load of chemicals (500 gallons), which brought the airplane close to maximum gross weight. During takeoff the airplane did not achieve rotation speed before it approached the end of the 2,700-foot-long runway. The pilot raised the nose to take off attitude, the airplane lifted off then settled back down, colliding with a barbwire fence and an irrigation ditch. The horizontal stabilizer and elevator were substantially damaged. Another Ag pilot who witnessed the accident stated that the pilot had taken off with a 6-knot tail wind. There was no report of a mechanical failure or malfunction with the airplane that would have precluded normal operation. ## Factual narrative The pilot stated that he was on his sixth chemical application load of the day. He had a full load of chemicals (500 gallons), which brought the airplane close to maximum gross weight. During takeoff the airplane did not achieve rotation speed before it approached the end of the 2,700-foot-long runway. The pilot raised the nose to take off attitude, the airplane lifted off then settled back down, colliding with a barbwire fence and an irrigation ditch. The horizontal stabilizer and elevator were substantially damaged. Another Ag pilot who witnessed the accident stated that the pilot had taken off with a 6-knot tail wind. There was no report of a mechanical failure or malfunction with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N4036G](https://openairdocs.org/deregistered/N4036G-2018-02-05), registration cancelled 2018-02-05, S/N T65HG-018G, built 2004 (OpenAirDocs) - Reported make and model: THRUSH AIRCRAFT INC S2RHG T65 - Registry model: [Thrush S2RHG-T65](https://openairdocs.org/model/thrush-s2rhg-t65) (registry code 0970222) (OpenAirDocs) - Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs) - Category: Airplane - Serial number: T65HG-018G - Year built: 2004 - Airframe hours: 1925 - Engines: Honeywell Garrett TPE991-10-511 840 horsepower turbo prop - Damage: Substantial damage - Flight: Aerial application, Part 137 - Operator: Bain Aviation Inc - Registered owner: Bain Aviation Inc - Airworthiness certificate: Special, Restricted (Special) - Last inspection: Annual, February 27, 2014 - Departed: 50S, Parma, ID - Destination: 50S, Parma, ID - Airport: 50S, 50s, runway 12, 2,700 × 50 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 51; injuries: minor; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review January 4, 2013; seat: center; restraint: 4-point; flight hours: 2,800 total, 600 in this make and model, 2,780 as pilot in command, 200 in the last 90 days, 100 in the last 30 days, 4 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 82 °F, dew point 50 °F - Altimeter: 30.02 inHg - Observed at: KONO, 15 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 20140716011929A](https://openairdocs.org/incident/20140716011929A), Jul 16, 2014: Thrush Aircraft Inc S2RHG-T65, Parma, ID, Substantial damage. Aircraft crashed after takeoff from rnwy 12 into a field due to the lack of power to remain airborn. ## Docket (2 files) The files NTSB released with the investigation on September 25, 2014, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=89672. 1.1 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 999 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40416891&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Record of Conversation - Richesin (item 2, .PDF, 101 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40416892&FileExtension=.PDF&FileName=Record%20of%20Conversation%20-%20Richesin-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.