# NTSB CHI00LA056: Cessna 210, N7493E, South Lyon, MI, December 25, 1999 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: December 25, 1999, 16:00 local (21:00 UTC) - Place: South Lyon, MI - Coordinates: 42.459156, -83.650856 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=42.4592&lon=-83.6509&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report March 2, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 48444 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI00LA056 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/48444/pdf - Page: https://openairdocs.org/ntsb/CHI00LA056 ## Probable cause the failure of the throttle and the unsuitable terrain encountered by the pilot in the taxi area. Factors were the collapsed nose gear and the rough terrain, ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power(partial) - mech failure/malf, takeoff - throttle/power lever - failure (cause) - Forced landing, emergency descent/landing - On ground/water encounter with terrain/water, taxi - terrain condition - rough/uneven (contributing factor) - unsuitable terrain or takeoff/landing/taxi area - encountered, pilot in command (cause) - landing gear,nose gear - collapsed (contributing factor) ## Analysis The airplane sustained substantial damage when the nose gear collapsed while taxiing after a forced landing was performed. The pilot stated that '... he had taken off from private runway at a neighbor's house near [his] home. [The pilot] said while flying he experienced mechanical problems related to the throttle, which caused him to land in the field. [The pilot] said he landed without incident but while taxing the front wheel collapsed in the rough terrain.' The pilot's written statement stated, 'I ... was trying to taxi on 36 - 18 on a private grass strip. I was working on trying to get the engine to clear up, by applying full power, with full flaps to put a load on the motor. half way down the runway I pull back on the throttle to turn around, and the throttle breaks. I panic I crow hop 50 feet. I turn off engine land across the road and taxi ahead and hit a farmers plowed pharo, resulting in breaking the nose wheel off.' Witnesses observed the airplane take off and descent into a nursery. ## Factual narrative On December 25, 1999, at 1600 eastern standard time, a Cessna 210, N7493E, piloted by a private pilot, sustained substantial damage when the nose gear collapsed while taxiing after a forced landing was performed to a field near South Lyon, Michigan. The personal flight was operated under 14 CFR Part 91. Visual Meteorological Conditions prevailed during the flight. The pilot reported no injuries. The flight originated from a private airstrip near South Lyon, Michigan at time unknown. The pilot's written statement, dated March 15, 2000, stated, "I ... was trying to taxi on 36 - 18 on a private grass strip. I was working on trying to get the engine to clear up, by applying full power, with full flaps to put a load on the motor. half way down the runway I pull back on the throttle to turn around, and the throttle breaks. I panic I crow hop 50 feet. I turn off engine land across the road and taxi ahead and hit a farmers plowed pharo, resulting in breaking the nose wheel off." On December 25, 1999, the pilot stated to the investigating police officer that "... he had taken off from private runway at a neighbor's house near [his] home. [The pilot] said while flying he experienced mechanical problems related to the throttle, which caused him to land in the field. [The pilot] said he landed without incident but while taxing the front wheel collapsed in the rough terrain. [The pilot] stated he was the only occupant and that he was not injured." The Livingston County 911 service recorded a caller that lived adjacent to the airstrip who witnessed the airplane restart its engine while taxing, take off from that airstrip, gain altitude, emit smoke and fly over pine trees. Another recorded caller reported that the airplane had taken off from the airstrip and that it went down in a nursery. ## Aircraft - Registration: [N7493E](https://openairdocs.org/deregistered/N7493E-2020-08-02), registration cancelled 2020-08-02, S/N 57193, built 1960 (OpenAirDocs) - Reported make and model: Cessna 210 - Registry model: [Cessna 210](https://openairdocs.org/model/cessna-210) (registry code 2073402) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 57193 - Engines: Continental O-320 260 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Gary E. Valentine - Registered owner: Berle Valentine - Airworthiness certificate: Standard, Normal - Departed: NONE, SOUTH LYON, MI ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 48; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: unknown, unknown; seat: left; flight hours: 1,700 total, 20 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 220° at 18 knots, gusting 27 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 25 °F, dew point 10 °F - Altimeter: 29.00 inHg - Observed at: ARB, 20 nm away 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.