# NTSB WPR22LA086: Cessna 310Q, N310CC, Corona, CA, December 7, 2021 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: December 7, 2021, 10:30 local (18:30 UTC) - Place: Corona, CA · airport - Coordinates: 33.897654, -117.60244 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.8977&lon=-117.6024&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Landing gear not configured](https://openairdocs.org/ntsb-events/095) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Western Pacific Region - Parties: FAA - NTSB case key (mKey): 104566 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR22LA086 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/104566/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=104566 - Page: https://openairdocs.org/ntsb/WPR22LA086 ## Probable cause The pilot receiving instruction failure to extend the landing gear before landing due to distraction and the flight instructor’s inadequate supervision. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [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 310Q, 1 case](https://openairdocs.org/ntsb-findings/01023230/cases.md?model=2074242), [All aircraft, 416 cases](https://openairdocs.org/ntsb-findings/01023230/cases.md) - [Attention/monitoring: monitoring other person](https://openairdocs.org/ntsb-findings/02021535): Personnel issues › Psychological · Instructor/check pilot (probable cause); cases with it: [Cessna 310Q, 1 case](https://openairdocs.org/ntsb-findings/02021535/cases.md?model=2074242), [All aircraft, 200 cases](https://openairdocs.org/ntsb-findings/02021535/cases.md) - [Action: forgotten action/omission](https://openairdocs.org/ntsb-findings/02041035): Personnel issues › Action/decision · Student/instructed pilot (probable cause); cases with it: [Cessna 310Q, 1 case](https://openairdocs.org/ntsb-findings/02041035/cases.md?model=2074242), [All aircraft, 440 cases](https://openairdocs.org/ntsb-findings/02041035/cases.md) - [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Student/instructed pilot (probable cause); cases with it: [Cessna 310Q, 3 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=2074242), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Landing gear not configured](https://openairdocs.org/ntsb-events/095) (defining event); cases with it: [Cessna 310Q, 1 case](https://openairdocs.org/ntsb-events/095/sequence.md?model=2074242), [All aircraft, 584 cases](https://openairdocs.org/ntsb-events/095/sequence.md) ## Analysis The pilot receiving instruction in the multi-engine airplane reported that, he was teaching a simulated, single engine landing in the airport traffic pattern to his instructor. While on downwind where he normally extends the landing gear, he was still focusing on the engine failure procedures and did not extend the landing gear or verify the landing gear position. The airplane subsequently touched down with the landing gear retracted. The lower fuselage was substantially damaged. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N310CC](https://openairdocs.org/aircraft/N310CC), registered now, S/N 310Q0970, built 1973 (OpenAirDocs) - Reported make and model: CESSNA 310Q - Registry model: [Cessna 310Q](https://openairdocs.org/model/cessna-310q) (registry code 2074242) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 310Q0970 - Year built: 1973 - Engines: Continental IO-470 260 horsepower reciprocating; Continental IO-470 260 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Mustang Aeronautics LLC - Registered owner: Mustang Aeronautics LLC - Airworthiness certificate: Standard, Normal - Destination: Same as departure - Airport: AJO, Corona Muni, runway 25, 3,200 × 60 ft, asphalt - Equipment: Unknown ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 22; injuries: none; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; seat: right; flight hours: 630 total, 7 in this make and model, 540 as pilot in command, 40 in the last 90 days - Flight instructor; age 39; injuries: none; commercial, flight instructor; airplane ratings: single-engine sea, single-engine land; instrument ratings: airplane; medical: class 2, without waivers/limitations; seat: left ## Weather - Conditions: Visual (VMC), Day - Wind: 50° at 4 knots - Visibility: 4 statute miles - Lowest ceiling: 10,000 ft overcast - Temperature: 55 °F, dew point 52 °F - Altimeter: 29.99 inHg - Observed at: KAJO - METAR: METAR KAJO 071756Z AUTO 05004KT 4SM BR OVC100 13/11 A2999 RMK AO2 SLP154 60000 T01330111 10133 20122 53004= ## 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 20211207020899A](https://openairdocs.org/incident/20211207020899A), Dec 7, 2021: Cessna 310Q, Corona, CA, Substantial damage. N310CC was in the traffic pattern at Corona, CA (kajo) for runway 25 in left traffic. The mission was to provide a final practice session for [privacy data… ## Docket (2 files) The files NTSB released with the investigation on June 14, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=104566. 1.7 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13534235&FileExtension=pdf&FileName=6120%20086_Redacted-Rel.pdf - Accident photo (item 2, PDF, 1 page, 382 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13533921&FileExtension=pdf&FileName=Accident%20Photo%20086-Rel.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.