# NTSB SEA07LA081: Cessna T210N, N4644U, Livermore, CA, March 24, 2007 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: March 23, 2007, 17:15 local (Mar 24, 2007, 00:15 UTC) - Place: Livermore, CA - Coordinates: 37.693332, -121.820274 - Nearby events: https://openairdocs.org/map.md?lat=37.6933&lon=-121.8203&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 5 uninjured - Status: Completed, report August 30, 2007 - Report: Approved by Office Director - Parties: FAA FSDO - NTSB case key (mKey): 65512 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA07LA081 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/65512/pdf - Page: https://openairdocs.org/ntsb/SEA07LA081 ## Probable cause (aircraft 2) The pilot's failure to maintain clearance from another aircraft holding on the taxiway while taxiing from landing. The pilot's inadequate visual lookout was a factor. ## Probable cause (aircraft 1) The failure of the pilot in the other aircraft to maintain clearance from a holding aircraft while taxiing from landing. Inadequate visual lookout by the pilot of the other aircraft was a factor. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Collision between aircraft (other than midair), taxi - from landing - visual lookout - inadequate, pilot of other aircraft (contributing factor) - clearance - not maintained, pilot of other aircraft (cause) - Collision between aircraft (other than midair), taxi - from landing - visual lookout - inadequate, pilot in command (contributing factor) - clearance - not maintained, pilot in command (cause) ## Analysis (aircraft 2) The pilot of the Cessna T210N said that he had landed on runway 25R and exited the runway on taxiway E. He said he contacted ground control and requested to taxi to the southeast T-hangars (requiring him to cross the active runway 25R). He said that ground control cleared him to taxi on taxiway A, to taxiway C, and hold short of runway 25R. The pilot said that upon reaching the intersection of taxiways A and C, he held on taxiway A (facing east) to permit any landing aircraft to exit the active runway at taxiway C. The pilot of the Sukhoi SU-29 (a tail wheel aircraft) said that he also landed on runway 25R and exited the runway on taxiway E. He changed his radio frequency to ground control and requested to taxi to the northeast T-hangars. Ground control cleared him to taxi on taxiway A to the T-hangars. The pilot said that he commenced to taxi. He said he saw the Cessna "at the last minute", and reduced his power and braked his aircraft. He said his propeller damaged the left elevator and left stabilizer of the Cessna ## Analysis (aircraft 1) The pilot of the Cessna T210N said that he had landed on runway 25R and exited the runway on taxiway E. He said he contacted ground control and requested to taxi to the southeast T-hangars (requiring him to cross the active runway 25R). He said that ground control cleared him to taxi on taxiway A, to taxiway C, and hold short of runway 25R. The pilot said that upon reaching the intersection of taxiways A and C, he held on taxiway A (facing east) to permit any landing aircraft to exit the active runway at taxiway C. The pilot of a Sukhoi SU-29 (a tail wheel aircraft) said that he also landed on runway 25R and exited the runway on taxiway E. He changed his radio frequency to ground control and requested to taxi to the northeast T-hangars. Ground control cleared him to taxi on taxiway A to the T-hangars. The pilot said that he commenced to taxi. He said he saw the Cessna "at the last minute", and reduced his power and braked his aircraft. He said his propeller damaged the left elevator and left stabilizer of the Cessna. ## Factual narrative (aircraft 2) On March 23, 2007, at approximately 1715 Pacific daylight time, a Cessna T210N, N4644U, was substantially damaged when a Sukhoi SU-29, N360JP, taxied into it at Livermore Municipal Airport (LVK), Livermore, California. The commercial pilot in the Sukhoi SU-29 and his passenger, and the private pilot in the Cessna T210N and his two passengers were not injured. Both pilots were operating their airplanes under Title 14 CFR Part 91. Visual meteorological conditions prevailed for the Cessna T210N's personal, cross-country flight, which originated from Napa, California, 30 minutes before the accident. Visual meteorological conditions also prevailed for the Sukhoi SU-29's personal cross-country flight, which originated from Ramona, California, approximately 3 hours before the accident. Neither aircraft had filed a flight plan. The pilot of the Cessna T210N said that he had landed on runway 25R and exited the runway on taxiway E. He said he contacted ground control and requested to taxi to the southeast T-hangars (requiring him to cross the active runway 25R). He said that ground control cleared him to taxi on taxiway A, to taxiway C, and hold short of runway 25R. The pilot said that upon reaching the intersection of taxiways A and C, he held on taxiway A (facing east) to permit any landing aircraft to exit the active runway at taxiway C. The pilot of the Sukhoi SU-29 (a tail wheel aircraft) said that he also landed on runway 25R and exited the runway on taxiway E. He changed his radio frequency to ground control and requested to taxi to the northeast T-hangars. Ground control cleared him to taxi on taxiway A to the T-hangars. The pilot said that he commenced to taxi. He said he saw the Cessna T210N "at the last minute", and reduced his power and braked his aircraft. He said his propeller damaged the left elevator and left stabilizer of the Cessna T210N. ## Factual narrative (aircraft 1) On March 23, 2007, at approximately 1715 Pacific daylight time, a Cessna T210N, N4644U, was substantially damaged when a Sukhoi SU-29, N360JP, taxied into it at Livermore Municipal Airport (LVK), Livermore, California. The commercial pilot in the Sukhoi SU-29, the private pilot in the Cessna T210N and his two passengers were not injured. Both pilots were operating their airplanes under Title 14 CFR Part 91. Visual meteorological conditions prevailed for the Cessna T210N's personal, cross-country flight, which originated from Napa, California, 30 minutes before the accident. Visual meteorological conditions also prevailed for the Sukhoi SU-29's personal cross-country flight, which originated from Ramona, California, approximately 3 hours before the accident. Neither aircraft had filed a flight plan. The pilot of the Cessna T210N said that he had landed on runway 25R and exited the runway on taxiway E. He said he contacted ground control and requested to taxi to the southeast T-hangars (requiring him to cross the active runway 25R). He said that ground control cleared him to taxi on taxiway A, to taxiway C, and hold short of runway 25R. The pilot said that upon reaching the intersection of taxiways A and C, he held on taxiway A (facing east) to permit any landing aircraft to exit the active runway at taxiway C. The pilot of the Sukhoi SU-29 (a tail wheel aircraft) said that he also landed on runway 25R and exited the runway on taxiway E. He changed his radio frequency to ground control and requested to taxi to the northeast T-hangars. Ground control cleared him to taxi on taxiway A to the T-hangars. The pilot said that he commenced to taxi. He said he saw the Cessna T210N "at the last minute", and reduced his power and braked his aircraft. He said his propeller damaged the left elevator and left stabilizer of the Cessna T210N. ## Aircraft 1 - Registration: [N4644U](https://openairdocs.org/aircraft/N4644U), registered now, S/N 21064797, built 1983 (OpenAirDocs) - Reported make and model: Cessna T210N - Registry model: [Cessna T210N](https://openairdocs.org/model/cessna-t210n) (registry code 2073456) (OpenAirDocs) - Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 21064797 - Airframe hours: 2630 - Engines: Continental TSIO-520-R 300 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Kevin J. McDonnell - Airworthiness certificate: Standard, Normal - Last inspection: Annual, October 1, 2006 - Departed: APC, Napa, CA - Destination: LVK, Livermore, CA - Airport: LVK, Livermore Munic ## Aircraft 2 - Registration: [N360JP](https://openairdocs.org/aircraft/N360JP), registered now, S/N 74-01 (OpenAirDocs) - Reported make and model: Sukhoi SU-29 - Registry model: [Sukhoi SU-29](https://openairdocs.org/model/sukhoi-su-29) (registry code 9850103) (OpenAirDocs) - Category: Airplane - Serial number: 74-01 - Airframe hours: 865 - Engines: Vendeneyev M-14P 376 horsepower reciprocating - Damage: Minor damage - Flight: Personal, Part 91 - Registered owner: John W. Piggott - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, January 1, 2007 - Departed: RNM, Ramona, CA - Destination: LVK, Livermore, CA - Airport: LVK, Livermore Munic ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft N4644U; age 51; injuries: none; private; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 3, without waivers/limitations; last flight review August 1, 2006; seat: left; flight hours: 1,604 total, 899 in this make and model, 1,436 as pilot in command, 19 in the last 90 days, 8 in the last 30 days, 1 in the last 24 hours - Pilot, aircraft N360JP; age 64; injuries: none; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, without waivers/limitations; last flight review March 1, 2007; seat: front; flight hours: 3,047 total, 865 in this make and model, 2,822 as pilot in command, 15 in the last 90 days, 12 in the last 30 days, 6 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 290° at 7 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 79 °F, dew point 46 °F - Altimeter: 29.88 inHg - Observed at: LVK ## FAA reports on this event (2) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20070323005141A](https://openairdocs.org/incident/20070323005141A), Mar 23, 2007: Cessna T210N, Livermore, CA, Substantial damage. (-23) Aircraft N4644U a Cessna 210 piloted by [privacy data omitted] exited runway 25R at Livermore and requested taxi to the south hangars. The tower directed… - [Accident 20070323005142A](https://openairdocs.org/incident/20070323005142A), Mar 23, 2007: Sukhoi SU29, Livermore, CA, Minor damage. (-23) The pilot of N4644U a Cessna 210 exited runway 25R at Livermore and requested taxi to the south hangars. The tower directed the aircraft to taxi to 25R… 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.