# NTSB CHI07CA085: Polcyn Long-EZE, N75FP, St. Charles, MO, March 10, 2007 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: March 10, 2007, 13:00 local (19:00 UTC) - Place: St. Charles, MO - Coordinates: 38.924167, -90.424163 - Nearby events: https://openairdocs.org/map.md?lat=38.9242&lon=-90.4242&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report May 29, 2007 - Report: Approved by Office Director - Parties: Federal Aviation Administration, St. Louis FSDO - NTSB case key (mKey): 65553 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI07CA085 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/65553/pdf - Page: https://openairdocs.org/ntsb/CHI07CA085 ## Probable cause A loss of engine power for undetermined reasons. A factor in the accident was the inadvertent lift-off that occurred during the high speed taxi checks. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Miscellaneous/other, taxi - lift-off - inadvertent, pilot in command (contributing factor) - Loss of engine power, go-around (vfr) - reason for occurrence undetermined (cause) - Forced landing, emergency descent/landing - In flight collision with terrain/water, emergency descent/landing - terrain condition - dirt bank/rising embankment ## Analysis The airplane was substantially damaged upon impact with terrain during an emergency landing. The pilot reported he was conducting high speed taxi-checks when the airplane inadvertently became airborne. The pilot stated he knew that the rotation speed of the airplane was 50 miles per hour (mph). The pilot reported the airplane lifted off at about 50 mph during the high speed taxi checks. The pilot stated he continued the takeoff to avoid going off the end of the runway. The pilot reported flying a normal traffic pattern. The pilot stated that on final approach he saw an airplane on the runway so he decided to perform a 'go-around.' During the 'go-around' the engine lost power. The pilot reported that he checked the fuel shutoff valve, mixture and ignition, but these did not remedy the situation. The airplane impacted a dirt mound near the runway surface. The airplane has a registration certificate but was never issued an airworthiness certificate. The pilot reported the airplane "was not finished." ## Factual narrative The airplane was substantially damaged upon impact with terrain during an emergency landing. The pilot reported he was conducting high speed taxi-checks when the airplane inadvertently became airborne. The pilot stated he knew that the rotation speed of the airplane was 50 miles per hour (mph). The pilot reported the airplane lifted off at about 50 mph during the high speed taxi checks. The pilot stated he continued the takeoff to avoid going off the end of the runway. The pilot reported flying a normal traffic pattern. The pilot stated that on final approach he saw an airplane on the runway so he decided to perform a 'go-around.' During the 'go-around' the engine lost power. The pilot reported that he checked the fuel shutoff valve, mixture and ignition, but these did not remedy the situation. The airplane impacted a dirt mound near the runway surface. The airplane has a registration certificate but was never issued an airworthiness certificate. The pilot reported the airplane "was not finished." ## Aircraft - Registration: [N75FP](https://openairdocs.org/deregistered/N75FP-2010-07-27), registration cancelled 2010-07-27, S/N RUTAN #1423 (OpenAirDocs) - Reported make and model: Polcyn Long-EZE - Registry model: [Polcyn Frank R LONG-EZE](https://openairdocs.org/model/polcyn-frank-r-long-eze) (registry code 056101J) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: Rutan 1423 - Airframe hours: 30 - Engines: Continental 0-200A reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Departed: SET, St. Charles, MO - Airport: SET, St Charles County Smartt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 77; injuries: none; private; airplane ratings: single-engine land; instrument ratings: airplane; flight hours: 2,500 total, 30 in this make and model, 2,500 as pilot in command, 0 in the last 90 days, 0 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 61 °F, dew point 28 °F - Altimeter: 30.21 inHg - Observed at: SET ## 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 20070310002719A](https://openairdocs.org/incident/20070310002719A), Mar 10, 2007: Amtr LONGEZE, St Charles, MO, Destroyed. (-23) According to the pilot, he was conducting high speed taxi checks when the airplane inadvertently became airborne. The pilot [privacy data omitted] stated… 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.