# NTSB ERA24LA037: Cessna 210, N9515X, Frederick, MD, November 13, 2023 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: November 13, 2023, 07:48 local (12:48 UTC) - Place: Frederick, MD - Coordinates: 39.416743, -77.372694 - Nearby events: https://openairdocs.org/map.md?lat=39.4167&lon=-77.3727&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: 1 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Eastern Region Aviation - Parties: FAA/FSDO - NTSB case key (mKey): 193388 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA24LA037 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/193388/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=193388 - Page: https://openairdocs.org/ntsb/ERA24LA037 ## Probable cause A failure of a hydraulic filter, which preluded normal extension of the landing gear. Also causal was the pilot’s failure to confirm that he landing gear was extended before landing, which resulted in a gear up landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system](https://openairdocs.org/ntsb-findings/01023200): Aircraft › Aircraft systems · Failure (probable cause); cases with it: [Cessna 210A, 1 case](https://openairdocs.org/ntsb-findings/01023200/cases.md?model=2073408), [All aircraft, 113 cases](https://openairdocs.org/ntsb-findings/01023200/cases.md) - [Action: forgotten action/omission](https://openairdocs.org/ntsb-findings/02041035): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Cessna 210A, 1 case](https://openairdocs.org/ntsb-findings/02041035/cases.md?model=2073408), [All aircraft, 440 cases](https://openairdocs.org/ntsb-findings/02041035/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330); cases with it: [Cessna 210A, 2 cases](https://openairdocs.org/ntsb-events/330/sequence.md?model=2073408), [All aircraft, 994 cases](https://openairdocs.org/ntsb-events/330/sequence.md) - [Landing-flare/touchdown: Landing gear not configured](https://openairdocs.org/ntsb-events/095) (defining event); cases with it: [Cessna 210A, 2 cases](https://openairdocs.org/ntsb-events/095/sequence.md?model=2073408), [All aircraft, 584 cases](https://openairdocs.org/ntsb-events/095/sequence.md) ## Analysis The pilot said that he extended the airplane’s landing gear in preparation to land but did not confirm if the gear was down and locked. As such, he was not aware that the landing gear did not extend due to a failure of the system’s hydraulic filter. The pilot landed gear up, resulting in substantial damage to the fuselage. The pilot said that when the airplane was recovered from the runway, recovery personnel were able to lift the airplane and extend the landing gear using the emergency gear hand pump. ## Aircraft - Registration: [N9515X](https://openairdocs.org/aircraft/N9515X), registered now, S/N 21057815, built 1961 (OpenAirDocs) - Reported make and model: CESSNA 210 (A) - Registry model: [Cessna 210A](https://openairdocs.org/model/cessna-210a) (registry code 2073408) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 21057815 - Year built: 1961 - Airframe hours: 3323 - Engines: Continental IO-470 E 260 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, February 23, 2023, 40 hours before - Departed: EDE, Edenton, NC - Destination: Same as departure - Airport: FDK, Frederick Municipal Airport, runway 23, 5,819 × 100 ft, asphalt - Equipment: Auto-pilot, Electronic flight bag or handheld device, ADS-B, Stall warning system, Handheld GPS ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 73; injuries: none; private; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: basicmed, without waivers/limitations; last flight review September 23, 2022; seat: left; restraint: lap only; flight hours: 2,372 total, 312 in this make and model, 2,372 as pilot in command, 66 in the last 90 days, 14 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 7 statute miles - Lowest ceiling: none - Temperature: 30 °F, dew point 30 °F - Altimeter: 30.41 inHg - Observed at: KFDK - METAR: KFDK 131247Z 00000KT 7SM CLR M01/M01 A3041 ## 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 20231113022489A](https://openairdocs.org/incident/20231113022489A), Nov 13, 2023: Cessna 210A, Frederick, MD, Substantial damage. PIC approached to land on runway 23; PIC activated the gear down lever, but did not confirm the gear was down; continued to land; PIC did not realize until too… ## Docket (3 files) The files NTSB released with the investigation on February 1, 2024, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=193388. 7.2 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 6.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16565785&FileExtension=pdf&FileName=6120_Redacted-Rel.pdf - Memorandum for record - pilot interview (item 2, PDF, 2 pages, 124 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16565217&FileExtension=pdf&FileName=Record%20of%20Convo%20w%20Jeffrey%20A%20Jones%2011%2013%202023%20v01_Redacted-Rel.pdf - Investigation photos (item 3, PDF, 1 page, 1 photo, 217 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16564685&FileExtension=pdf&FileName=Investigation%20Photos-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.