# NTSB GAA17CA423: Cessna T210L, N333GK, Yuba City, CA, July 7, 2017 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 6, 2017, 18:15 local (Jul 7, 2017, 01:15 UTC) - Place: Yuba City, CA - Coordinates: 39.123611, -121.605278 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=39.1236&lon=-121.6053&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Landing gear not configured](https://openairdocs.org/ntsb-events/095) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report January 11, 2018 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 95621 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA17CA423 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/95621/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=95621 - Page: https://openairdocs.org/ntsb/GAA17CA423 ## Probable cause The pilot’s failure to extend the landing gear before landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Action: forgotten action/omission](https://openairdocs.org/ntsb-findings/02041035): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Cessna T210L, 6 cases](https://openairdocs.org/ntsb-findings/02041035/cases.md?model=2073449), [All aircraft, 440 cases](https://openairdocs.org/ntsb-findings/02041035/cases.md) - [Landing gear system: gear extension and retract sys](https://openairdocs.org/ntsb-findings/01023230): Aircraft › Aircraft systems · Not used/operated (probable cause); cases with it: [Cessna T210L, 10 cases](https://openairdocs.org/ntsb-findings/01023230/cases.md?model=2073449), [All aircraft, 416 cases](https://openairdocs.org/ntsb-findings/01023230/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [Cessna T210L, 7 cases](https://openairdocs.org/ntsb-events/090/sequence.md?model=2073449), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) - [Landing: Landing gear not configured](https://openairdocs.org/ntsb-events/095) (defining event); cases with it: [Cessna T210L, 11 cases](https://openairdocs.org/ntsb-events/095/sequence.md?model=2073449), [All aircraft, 584 cases](https://openairdocs.org/ntsb-events/095/sequence.md) ## Analysis The pilot in the retractable-landing-gear airplane reported that he made a normal approach, but he failed to extend the landing gear. The airplane touched down on the runway and skidded to a stop on the lower fuselage. The airplane sustained substantial damage to the lower fuselage. Per the National Transportation Safety Board Pilot Aircraft Accident Report, the pilot noted that the accident could have been prevented if he had performed a "double and triple check of my GUMPS checklist." The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative The pilot in the retractable landing gear airplane reported that he had made a normal approach, but he failed to extend the landing gear. The airplane touched down on the runway and skidded to a stop on the lower fuselage. The airplane sustained substantial damage to the lower fuselage. Per the National Transportation Safety Board Pilot Aircraft Accident Report, the pilot noted that the accident could have been prevented if he had performed a, "double and triple check of my GUMPS checklist." The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N333GK](https://openairdocs.org/aircraft/N333GK), registered now, S/N 21061282, built 1976 (OpenAirDocs) - Reported make and model: CESSNA T210L (M) - Registry model: [Cessna T210L](https://openairdocs.org/model/cessna-t210l) (registry code 2073449) (OpenAirDocs) - Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 21061282 - Year built: 1976 - Engines: Continental TSIO -520-H 280 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, August 1, 2016 - Departed: KRDD, Redding, CA - Destination: O52, Yuba City, CA - Airport: O52, Sutter County, runway 17, 3,045 × 75 ft, asphalt - Equipment: Auto-pilot ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 50; injuries: none; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, without waivers/limitations; last flight review June 17, 2017; seat: left; restraint: none; flight hours: 392 total, 27 in this make and model, 322 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: 230° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 104 °F, dew point 48 °F - Altimeter: 29.90 inHg - Observed at: KMYV, 2 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 20170706024069A](https://openairdocs.org/incident/20170706024069A), Jul 6, 2017: Cessna T210L, Yuba City, CA, Substantial damage. On 07/06/17, N333GK was on the way back to O52 from krdd. At approximately 1815 PDT the aircraft landed gear up. The aircraft sustained substantial damage… ## Docket (2 files) The files NTSB released with the investigation on December 1, 2017, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=95621. 3.5 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 3.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40458504&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Photo (item 2, .PDF, 140 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40458505&FileExtension=.PDF&FileName=Photo-Master.PDF 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.