# NTSB CHI01LA240: Snow 600-S2C, N8703V, Plainfield, WI, July 21, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 21, 2001, 10:50 local (15:50 UTC) - Place: Plainfield, WI - Coordinates: 44.20948, -89.490028 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=44.2095&lon=-89.4900&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report January 16, 2003 - Report: Approved by Office Director - Parties: Federal Aviation Administration - Milwaukee FSDO - NTSB case key (mKey): 52903 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI01LA240 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/52903/pdf - Page: https://openairdocs.org/ntsb/CHI01LA240 ## Probable cause The pilot not maintaining aircraft control while maneuvering on the aerial application flight. A factor to the accident was the encountered stall/mush at a low altitude. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - in flight, maneuvering - aerial application - aircraft control - not maintained, pilot in command (cause) - stall/mush - encountered, pilot in command (contributing factor) - altitude - low (contributing factor) - In flight collision with terrain/water, descent - uncontrolled ## Analysis The pilot reported that while in a turn after a spray run, "... the aircraft felt to slow and the controls were mushy. I lowered the nose, shallowed the turn and added full power. However, I was unable to recover from the near stall before contact with the ground occured. The aircraft contacted the ground in a flat, level attitude with an east heading in an unfarmed field about 200 yards west of the potato field. The terrain was flat and there were no obstacles." The pilot did not report any mechanical malfunctions on his accident report. ## Factual narrative On July 21, 2001, at 1050 central daylight time, a Snow 600-S2C, N8703V, piloted by a commercial pilot, sustained substantial damage during an in-flight collision with the terrain following a loss of control while maneuvering near Plainfield, Wisconsin. Visual meteorological conditions prevailed at the time of the accident. The aerial application flight was operating under the provisions of 14 CFR Part 137 and was not on a flight plan. The pilot, the sole occupant, reported no injuries. The flight departed Bancroft, Wisconsin, at 1035 and was spraying agricultural fungicide at the time of the accident. According to the pilot's written statement, he was spraying a potato field with a load of 150 gallons of fungicide and 70 gallons of fuel at the time of the accident. The pilot reported that while in a turn after a spray run, "... the aircraft felt to slow and the controls were mushy. I lowered the nose, shallowed the turn and added full power. However, I was unable to recover from the near stall before contact with the ground occured. The aircraft contacted the ground in a flat, level attitude with an east heading in an unfarmed field about 200 yards west of the potato field. The terrain was flat and there were no obstacles." The pilot did not report any mechanical malfunctions on his accident report. ## Aircraft - Registration: [N8703V](https://openairdocs.org/deregistered/N8703V-2009-08-11), registration cancelled 2009-08-11, S/N 1290C, built 1966 (OpenAirDocs) - Reported make and model: Snow 600-S2C - Registry model: [Snow 600-S2C](https://openairdocs.org/model/snow-600-s2c) (registry code 8380302) (OpenAirDocs) - Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1290C - Engines: Pratt & Whitney R985-AN3 450 horsepower reciprocating - Damage: Substantial damage - Flight: Aerial application, Part 137 - Registered owner: Farmers Flying Service, Inc. - Airworthiness certificate: Special, Restricted (Special) - Last inspection: Annual, July 10, 2001 - Departed: Bancroft, WI - Destination: Bancroft, WI ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 37; injuries: none; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; last flight review January 17, 2001; seat: center; flight hours: 1,760 total, 38 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 4 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 72 °F - Altimeter: 29.92 inHg - Observed at: ISW, 17 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 20010721019289A](https://openairdocs.org/incident/20010721019289A), Jul 21, 2001: Ayres 600S2C, Plainfield, WI, No damage. (.19) On July 21, 2001, at 1050 central daylight time, a snow 600-S2C, N8703V, piloted by a commercial pilot, sustained substantial damage during an in-flight… 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.