# NTSB DFW08LA035: Ayres S2-R, N32984, Lenora, TX, November 1, 2007 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: November 1, 2007, 18:00 local (23:00 UTC) - Place: Lenora, TX - Coordinates: 32.753612, -101.918334 - Nearby events: https://openairdocs.org/map.md?lat=32.7536&lon=-101.9183&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 30, 2008 - Report: Approved by Office Director - Parties: FAA, FSDO - NTSB case key (mKey): 67361 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DFW08LA035 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/67361/pdf - Page: https://openairdocs.org/ntsb/DFW08LA035 ## Probable cause The loss of engine power due to separation of the "P3" line from the engine's fuel control. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, cruise - bleed air system - separation (cause) - fuel system,fuel control - not activated - Forced landing, descent - emergency - In flight collision with terrain/water, emergency descent/landing - terrain condition - open field ## Analysis A single-turbine engine airplane, lost engine power during cruise, and the pilot performed a forced landing. He reported that during cruise flight, "the engine just quit in mid-air". An examination of the airplane on-site revealed structural damage during the forced landing, and fuel was present in the airplane's fuel tanks. After the aircraft had been recovered, a visual inspection of the engine was conducted, and no noticeable reason for the loss of engine power was found. An additional inspection was to be conducted at the engine manufacturer's facility. However, when the mechanics were preparing the engine for removal from the airframe, a line going to the fuel control was found to be loose, and essentially fell apart. The line, identified as the "P3" line, had separated from the AN fitting. Further examination of the fitting/hose identified, sooting or heat marks, on and near the AN fitting, as well as further along the hose. The hose's fire-sleeve covering was removed and revealed, that approximately one-foot of the braided hose had been burnt. According to the engine manufacturer when the engine is running, if the "P3" line is disconnected from the fuel controller, fuel flow to the engine will be at the "sub- idle" condition. ## Factual narrative On November 1, 2007, approximately 1800 central daylight time, a single-turbine engine Ayres S2-R, Thrush, airplane, N32984, was substantially damaged during a forced landing following a loss of engine power during cruise flight near Lenora, Texas. The commercial pilot and sole occupant, was not injured. The airplane was registered to and operated by Chiles Flying Service Inc. of LaMesa, Texas. day visual meteorological conditions prevailed for the 14 Code of Federal Regulations Part 91 cross-country positioning flight. The flight originated from the LaMesa Municipal Airport, near LaMesa, at an unknown time. The pilot reported to the NTSB Investigator-in-charge (IIC), that during cruise flight, "the engine just quit in mid-air". According to a Federal Aviation Administration (FAA) inspector, who responded to the accident site, the aircraft received structural damage during the forced landing. The FAA inspector also noted that fuel was present in the airplane's fuel tanks. The aircraft was recovered to Air Salvage of Dallas, Lancaster, Texas, for further examination. A visual inspection of the engine was conducted, and no noticeable reason for the loss of engine power was found. An additional inspection was to be conducted at the engine manufacturer's facility. However, when the mechanics were preparing the engine for removal from the airframe, a line going to the fuel control was found to be loose, and essentially fell apart. The line, identified as the "P3" line, had separated from the AN fitting. Further examination of the fitting/hose identified, sooting or heat marks, on and near the AN fitting, as well as further along the hose. The hose's fire-sleeve covering was removed and revealed that approximately one-foot of the braided hose had been burnt. According to the engine manufacturer when the engine is running, if the "P3" line is disconnected from the fuel controller, fuel flow to the engine will be at the "sub- idle" condition. ## Aircraft - Registration: [N32984](https://openairdocs.org/aircraft/N32984), registered now, S/N G10-116, built 1995 (OpenAirDocs) - Reported make and model: Ayres S2-R - Registry model: [Ayres S2R-G10](https://openairdocs.org/model/ayres-s2r-g10) (registry code 0970217) (OpenAirDocs) - Registry engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01517, turbo-prop) (OpenAirDocs) - Category: Airplane - Serial number: G10-116 - Engines: Garrett TPE331 turbo prop - Damage: Substantial damage - Flight: Aerial application, Part 137 - Operator: Chiles Flying Service, Inc., doing business as Chiles Flying Service, Inc. - Registered owner: Chiles Flying Service, Inc. - Airworthiness certificate: Special, Restricted (Special) - Departed: 2F5, LAMESA, TX - Destination: Lenora, TX - Flight plan: Unknown ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 51; injuries: none; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review January 1, 2007; seat: front; flight hours: 12,000 total, 11,500 as pilot in command, 300 in the last 90 days, 150 in the last 30 days, 12 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 70° at 5 knots - Lowest ceiling: none - Temperature: 64 °F, dew point 27 °F - Altimeter: 30.14 inHg - Observed at: KBPG, 25 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 20071101826379A](https://openairdocs.org/incident/20071101826379A), Nov 1, 2007: Ayres S2RG10, Lenorah, TX, Substantial damage. (-23) On November 1, 2007, at approximately 1800 CDT, the pilot of an Ayres S2-R agricultural aircraft, N32984, experienced loss of power and subsequently made… 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.