# NTSB DEN06CA105: Schweizer G-164B, N8459K, Joes, CO, July 27, 2006 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 27, 2006, 11:00 local (17:00 UTC) - Place: Joes, CO - Coordinates: 40.106945, -102.721664 - Nearby events: https://openairdocs.org/map.md?lat=40.1069&lon=-102.7217&mi=10 - Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report October 31, 2006 - Report: Approved by Office Director - Parties: FAA Flight Standards District Office - NTSB case key (mKey): 64219 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN06CA105 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/64219/pdf - Page: https://openairdocs.org/ntsb/DEN06CA105 ## Probable cause A loss of engine power due to the failure of the supercharger. Contributing to the accident was a lack of suitable terrain for a forced landing. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, takeoff - initial climb - eng assembly,blower/impeller/integral supercharger - seized (cause) - Forced landing, descent - emergency - emergency procedure - performed, pilot in command - In flight collision with terrain/water, emergency landing after takeoff - terrain condition - none suitable (contributing factor) - terrain condition - crop - Nose over, emergency landing after takeoff ## Analysis According to the pilot, the airplane experienced a loss of engine power after departing a dirt strip. The pilot stated that he "dumped the load" and performed a forced landing to a corn field. The airplane nosed over resulting in substantial damage. An examination of the engine revealed a failure of the supercharger assembly. ## Factual narrative According to the Pilot/Operator Aircraft Accident Report Form submitted by the pilot, the airplane experienced a loss of engine power after departing a dirt strip. The pilot stated that he "dumped the load" and performed a forced landing to a corn field. The airplane nosed over. The vertical stabilizer was crushed down and to the right 90 degrees and both top wings were crushed aft and wrinkled. An examination of the engine revealed the engine sump plug was full of metal. Further examination of the engine revealed heat damage on the impeller shaft, and a failure of the bearing retainer of the supercharger assembly. ## Aircraft - Registration: [N8459K](https://openairdocs.org/deregistered/N8459K-2012-02-03), registration cancelled 2012-02-03, S/N 701B, built 1982 (OpenAirDocs) - Reported make and model: Schweizer Aircraft Corp G-164B - Registry model: [Schweizer G-164B](https://openairdocs.org/model/schweizer-g-164b) (registry code 8059055) (OpenAirDocs) - Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs) - Category: Airplane - Serial number: 701B - Engines: Lycoming TIO-540 310 horsepower reciprocating - Damage: Substantial damage - Flight: Aerial application, Part 137 - Registered owner: Western Ag Air Inc - Airworthiness certificate: Special, Experimental (Special) - Departed: Joes, CO - Destination: Joes, CO - Airport: N/A, Private Dirt Strip ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 61; injuries: none; commercial; airplane ratings: single-engine land; medical: class 2, with waivers/limitations; last flight review March 1, 2005; seat: front; flight hours: 11,263 total, 5,710 in this make and model, 175 in the last 90 days, 90 in the last 30 days, 7 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 30° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 77 °F, dew point 64 °F - Altimeter: 30.06 inHg - Observed at: ITR ## 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 20060727030589A](https://openairdocs.org/incident/20060727030589A), Jul 27, 2006: Scwzer G164B, Yuma, CO, Substantial damage. (-23) On 07-27-2006 N8459K lost power on takeoff and landed in a field with substantial damage. [privacy data omitted] Was the pilot with no injuries. ## Other investigations on N8459K (2) 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. - [NTSB DEN07CA112](https://openairdocs.org/ntsb/DEN07CA112), Jul 4, 2007: Grumman-Schweizer G-164B (N8459K), Joes, CO, substantial damage. Probable cause: the pilot's improper takeoff planning and subsequent failure to maintain aircraft control during the takeoff. Contributing factors were the high density altitude and tailwind. - [NTSB MIA84LA020](https://openairdocs.org/ntsb/MIA84LA020), Oct 27, 1983: Schweizer G-164B (N8459K), Ormond Beach, FL, destroyed 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.