# NTSB FTW01LA207: Ayres S2R-T11, N40173, Spur, TX, September 19, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: September 19, 2001, 09:20 local (14:20 UTC) - Place: Spur, TX - Coordinates: 33.249603, -100.570121 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.2496&lon=-100.5701&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report February 20, 2002 - Report: Approved by Office Director - Parties: FAA FSDO - NTSB case key (mKey): 53491 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW01LA207 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/53491/pdf - Page: https://openairdocs.org/ntsb/FTW01LA207 ## Probable cause the loss of engine power while in cruise flight for undetermined reasons. A contributing factor was the lack of suitable terrain for 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 - reason for occurrence undetermined (cause) - Forced landing, descent - emergency - In flight collision with object, landing - roll - object - tree(s) - terrain condition - none suitable (contributing factor) ## Analysis While in cruise flight, the agricultural airplane's engine lost power. The pilot executed a forced landing to a field. During the landing sequence, the airplane's right wing impacted a tree, the airplane spun around to the right, and the landing gear collapsed. There was fuel found in both fuel tanks. The engine was inspected and test run for 3 hours with no anomalies noted. ## Factual narrative On September 19, 2001, approximately 0920 central daylight time, an Ayres S2R-T11 agricultural airplane, N40173, was substantially damaged when it impacted a tree during a forced landing following a loss of engine power in cruise flight near Spur, Texas. The commercial pilot, sole occupant of the airplane, was not injured. The airplane was registered to and operated by Tri County Sprayers Inc., of Hamlin, Texas. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 positioning flight. The flight departed the Hamlin Municipal Airport approximately 0900, and was destined for Crosbyton, Texas. The pilot reported that approximately 20 minutes into the flight, the engine started losing power. The pilot elected to execute a forced landing to a field. During the landing sequence, the airplane's right wing impacted a tree, the airplane spun around to the right, and the landing gear collapsed. According to an FAA inspector, who responded to the accident site, the right wing was substantially damaged, and there was fuel found in both fuel tanks. The operator reported that the engine was recovered and examined at a local maintenance facility. The maintenance mechanic stated that he performed a "Level 2 Propeller Strike Inspection" on the engine, in accordance with manufacturer's procedures. The inspection did not reveal any anomalies that would have prevented engine operation. The engine was then test run for approximately 3 hours at various power settings, and no anomalies were noted. ## Aircraft - Registration: [N40173](https://openairdocs.org/aircraft/N40173), registered now, S/N T11-002, built 1980 (OpenAirDocs) - Reported make and model: Ayres S2R-T11 - Registry model: [Ayres S2R-T11](https://openairdocs.org/model/ayres-s2r-t11) (registry code 0970107) (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: T11-002 - Airframe hours: 8659 - Engines: Garrett TPE331-6 724 horsepower turbo prop - Damage: Substantial damage - Flight: Positioning, Part 91 - Registered owner: Tri-County Sprayers Inc - Airworthiness certificate: Special, Restricted (Special) - Last inspection: Annual, June 25, 2001, 140 hours before - Departed: 14F, Hamlin, TX - Destination: 8F3, Crosbyton, TX - Flight plan: Unknown ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 40; injuries: none; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; last flight review July 1, 2001; seat: center; flight hours: 3,800 total, 3,000 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 90° at 2 knots - Visibility: 20 statute miles - Lowest ceiling: none - Temperature: 75 °F ## 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 20010919023909A](https://openairdocs.org/incident/20010919023909A), Sep 19, 2001: Spur, TX, No damage. (-23) The pilot reported that he had departed hamlin, TX (14F) enroute to crosbyton, TX (8F3) at approximately 0900 CDT in an ayers aircraft, model S2R,… 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.