# NTSB ERA24LA186: Cessna 210, N777NT, Concord, NC, April 12, 2024 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: April 12, 2024, 11:08 local (15:08 UTC) - Place: Concord, NC - Coordinates: 35.38777, -80.709132 - Nearby events: https://openairdocs.org/map.md?lat=35.3878&lon=-80.7091&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Defining event: [Approach: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330) - 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: Eastern Region Aviation - Parties: FAA/FSDO - NTSB case key (mKey): 194120 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA24LA186 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/194120/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=194120 - Page: https://openairdocs.org/ntsb/ERA24LA186 ## Probable cause Failure of a landing gear extension system hydraulic hose, which resulted in a landing with the landing gear retracted. ## 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 · Failure (probable cause); cases with it: [Cessna 210L, 3 cases](https://openairdocs.org/ntsb-findings/01023230/cases.md?model=2073448), [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. - [Approach: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330) (defining event); cases with it: [Cessna 210L, 7 cases](https://openairdocs.org/ntsb-events/330/sequence.md?model=2073448), [All aircraft, 994 cases](https://openairdocs.org/ntsb-events/330/sequence.md) - [Landing: Landing gear not configured](https://openairdocs.org/ntsb-events/095); cases with it: [Cessna 210L, 1 case](https://openairdocs.org/ntsb-events/095/sequence.md?model=2073448), [All aircraft, 584 cases](https://openairdocs.org/ntsb-events/095/sequence.md) - [Landing-flare/touchdown: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [Cessna 210L, 1 case](https://openairdocs.org/ntsb-events/090/sequence.md?model=2073448), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) ## Analysis During approach, the pilot attempted to extend the landing gear, but it remained retracted. The pilot was unable to extend the landing gear via normal or emergency procedures, and subsequently observed that all the hydraulic fluid had leaked out of the reservoir. The pilot diverted to a larger airport and performed a gear-up landing. During the landing, the airplane skidded right, and came to rest upright partially off the right side of the runway. Examination of the wreckage revealed substantial damage to the right horizontal stabilizer and right elevator. The examination also revealed that a hydraulic hose (possibly the original hose) had deteriorated and separated from its fitting, allowing all the hydraulic fluid to leak out of the system. ## Aircraft - Registration: [N777NT](https://openairdocs.org/aircraft/N777NT), registered now, S/N 21060972, built 1975 (OpenAirDocs) - Reported make and model: CESSNA 210 (L) - Registry model: [Cessna 210L](https://openairdocs.org/model/cessna-210l) (registry code 2073448) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 21060972 - Year built: 1975 - Airframe hours: 6333 - Engines: Continental IO-520 300 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, April 15, 2023, 100 hours before - Departed: DCM, Chester, SC - Destination: Same as departure - Airport: JQF, Concord Regional Airport, runway 20, 7,402 × 100 ft, asphalt - Equipment: ADS-B, Stall warning system, Electronic primary flight display, Electronic multifunction display, Electronic flight bag or handheld device, Auto-pilot ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 35; injuries: none; commercial, flight instructor; airplane ratings: single-engine sea, multi-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review October 25, 2023; seat: right; restraint: 3-point; flight hours: 1,008 total, 197 in this make and model, 789 as pilot in command, 77 in the last 90 days, 10 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 270° at 12 knots, gusting 27 - Visibility: 9 statute miles - Lowest ceiling: none - Temperature: 64 °F, dew point 39 °F - Altimeter: 29.82 inHg - Observed at: JQF - METAR: KJQF 121450Z 27012G27KT 10SM CLR 18/04 A2982 ## 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 20240412003959A](https://openairdocs.org/incident/20240412003959A), Apr 12, 2024: Cessna 210L, Concord, NC, Substantial damage. Pilot placed the landing gear down during the approach. The main landing gear did not extend. The pilot performed the manual extension procedure with no… ## Docket (4 files) The files NTSB released with the investigation on June 21, 2024, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=194120. 4.5 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 3.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17105540&FileExtension=pdf&FileName=6120_Redacted-Rel.pdf - Memorandum for the record (item 2, PDF, 1 page, 65 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17106611&FileExtension=pdf&FileName=MFR-Rel.pdf - Investigation photographs (item 3, PDF, 3 pages, 504 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17105942&FileExtension=pdf&FileName=Photo%20Array%20-Rel.pdf - Weather report (item 4, PDF, 1 page, 45 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17106567&FileExtension=pdf&FileName=Weather%20Report-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.