# NTSB CHI95LA265: Aero Commander S2R, N5663X, Wyatt, MO, August 3, 1995 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: August 2, 1995, 19:30 local (Aug 3, 1995, 00:30 UTC) - Place: Wyatt, MO - Coordinates: 36.909526, -89.21965 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=36.9095&lon=-89.2197&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 29, 1996 - Report: Approved by Office Director - NTSB case key (mKey): 9982 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI95LA265 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/9982/pdf - Page: https://openairdocs.org/ntsb/CHI95LA265 ## Probable cause the pilot's failure to use carburetor heat which led to carburetor ice. Factors were weather conditions conducive to carburetor icing and the unsuitable terrain encountered during the forced landing. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, cruise - weather condition - carburetor icing conditions (contributing factor) - carburetor heat - not used, pilot in command (cause) - fuel system,carburetor - ice (cause) - Forced landing, emergency landing - On ground/water encounter with terrain/water, landing - roll - terrain condition - none suitable (contributing factor) - terrain condition - ditch ## Analysis While en route to apply chemicals to a crop field, the airplane sustained an engine power loss. The pilot made a forced landing in a crop field and encountered a ditch during rollout. Examination of the airplane and engine after the accident failed to reveal any pre-existing anomalies. A weather reporting station 26 miles northwest of the accident site reported a temperature of 89 degrees (F) and a dew point of 72 degrees (F) 29 minutes prior to the accident. The pilot stated that he did not use the carburetor heat. ## Factual narrative On August 2, 1995, at 1930 central daylight time, an Aero Commander S2R, N5663X, operated by a commercial pilot, received substantial damage during a forced landing, three miles east of Wyatt, Missouri. The airplane sustained a loss of engine power during a flight to apply chemicals to a crop field. The pilot reported no injuries. The 14 CFR Part 137 flight was operating in visual meteorological conditions. No flight plan was on file. The local flight departed Charleston, Missouri, at 1900. The pilot stated that the airplane experienced a loss of engine power. He then made a forced landing in a crop field and the airplane sustained substantial damage when the landing gear impacted a ditch. The pilot stated that he did not know the reason for the loss of power. He said that he thought the temperature was too high for carburetor icing, but that he had not used carburetor heat. Subsequent to the accident an examination of the airplane was conducted by a Federal Aviation Administration inspector. The inspector who examined the airplane found no pre-existing mechanical anomalies. He stated that weather conditions were conducive to carburetor icing. There was a weather reporting station 26 miles to the northwest of the accident site. Thirty-nine minutes prior to the accident that station was reporting a temperature of 89 degrees (F) with a dew point of 72 degrees (F). ## Aircraft - Registration: [N5663X](https://openairdocs.org/aircraft/N5663X), registered now, S/N 1863R, built 1973 (OpenAirDocs) - Reported make and model: Aero Commander S2R - Registry model: [Aero Commander S2R](https://openairdocs.org/model/aero-commander-s2r) (registry code 0143022) (OpenAirDocs) - Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1836R - Engines: P&W R-1340-AN1 600 horsepower reciprocating - Damage: Substantial damage - Flight: Aerial application, Part 137 - Registered owner: Austin, Stephen B. - Airworthiness certificate: Special, Restricted (Special) - Last inspection: Annual, December 31, 1994, 15 hours before - Departed: NONE, CHARLESTON, MO ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 30; commercial, flight instructor; airplane ratings: single-engine land; instrument ratings: airplane, helicopter; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 3,700 total, 600 in this make and model, 3,400 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 120° at 9 knots - Visibility: 12 statute miles - Lowest ceiling: none - Temperature: 90 °F, dew point 72 °F - Altimeter: 29.00 inHg - Observed at: CGI, 26 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 19950803049059A](https://openairdocs.org/incident/19950803049059A), Aug 3, 1995: Ayres S2R, Wyatt, MO, Substantial damage. (-16) Aircraft was operated by stephen bruce austin, commercial pilot #499729933. Aircraft was completing spraying pass; during the turn the engine failed to… 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.