# NTSB CEN24LA063: Cessna T210, N6789R, Sapulpa, OK, December 13, 2023 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 3 · Limited · Final report - Date: December 13, 2023, 17:30 local (23:30 UTC) - Place: Sapulpa, OK - Coordinates: 36.009444, -96.031667 - Nearby events: https://openairdocs.org/map.md?lat=36.0094&lon=-96.0317&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Defining event: [Enroute-climb to cruise: Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 3 - NTSB office: Central Region - Parties: FAA FSDO - NTSB case key (mKey): 193524 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN24LA063 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/193524/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=193524 - Page: https://openairdocs.org/ntsb/CEN24LA063 ## Probable cause The total loss of engine power due to the failure of the left magneto and subsequent damage to a lead for the right magneto. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Ignition system: magneto/distributor](https://openairdocs.org/ntsb-findings/01057414): Aircraft › Aircraft power plant · Failure (probable cause); cases with it: [Cessna T210F, 1 case](https://openairdocs.org/ntsb-findings/01057414/cases.md?model=2073422), [All aircraft, 101 cases](https://openairdocs.org/ntsb-findings/01057414/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Enroute-climb to cruise: Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340) (defining event); cases with it: [Cessna T210F, 1 case](https://openairdocs.org/ntsb-events/340/sequence.md?model=2073422), [All aircraft, 820 cases](https://openairdocs.org/ntsb-events/340/sequence.md) - [Enroute-climb to cruise: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341); cases with it: [Cessna T210F, 5 cases](https://openairdocs.org/ntsb-events/341/sequence.md?model=2073422), [All aircraft, 3,820 cases](https://openairdocs.org/ntsb-events/341/sequence.md) - [Landing-flare/touchdown: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [Cessna T210F, 1 case](https://openairdocs.org/ntsb-events/090/sequence.md?model=2073422), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Cessna T210F, 3 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2073422), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis Shortly after takeoff, the airplane’s engine lost total power and the pilot performed a forced landing to a road. During the forced landing, the pilot maneuvered to avoid a vehicle, and the airplane landed hard. The right main landing gear and nose landing gear collided with a concrete curb, and the nose landing gear collapsed. The airplane sustained substantial damage to the fuselage and left wing. Examination of the engine revealed that the left magneto had overheated, failed, and separated from the engine, resulting in damage to the right magneto’s p-lead. The damage to the right magneto p-lead likely resulted in the grounding of the right magneto and a subsequent total loss of the engine’s ignition source. Due to extensive damage to the left magneto, further testing could not be accomplished and the reason for its failure could not be determined. The magneto was recently rebuilt and installed on the engine before the flight. It could not be determined if this maintenance introduced debris to the internal magneto components. ## Factual narrative On December 13, 2023, about 1730 central standard time, a Cessna T210F airplane, N6789R, was substantially damaged when it was involved in an accident near Sapulpa, Oklahoma. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The purpose of the flight was to perform an initial break-in of the engine, which had recently been overhauled. Shortly after takeoff, the engine lost all power, but the propeller continued windmilling. The pilot attempted to restore engine power but was unsuccessful. Unable to return to the airport, the pilot performed a forced landing to a road, during which the pilot maneuvered to avoid a vehicle and landed hard. During the landing roll, the right main landing gear and nose landing gear collided with a concrete curb, and the nose landing gear collapsed. The airplane sustained substantial damage to the fuselage and left wing. A postaccident examination of the engine found that the left magneto had seized and was partially separated from the engine. Impact damage to the right magneto’s p-lead was observed and the right magneto was confirmed to be grounded. Examination of the left magneto found that the internal components were heat damaged and melted. Due to the damage, further testing could not be conducted. The magneto had been rebuilt and installed on the engine during the most recent engine overhaul, which occurred about 1 hour before the accident. ## Aircraft - Registration: [N6789R](https://openairdocs.org/aircraft/N6789R), registered now, S/N T210-0189, built 1966 (OpenAirDocs) - Reported make and model: CESSNA T210 (F) - Registry model: [Cessna T210F](https://openairdocs.org/model/cessna-t210f) (registry code 2073422) (OpenAirDocs) - Registry engine: [Continental GTSIO-520-C](https://openairdocs.org/engine/continental-gtsio-520-c) (registry code 17035, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: T210-0189 - Year built: 1966 - Airframe hours: 3671 - Engines: Continental TSIO-520-C 285 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Dan Howard Aircraft Sales LLC - Airworthiness certificate: Standard, Normal - Last inspection: Annual, October 11, 2023, 1 hours before - Airport: RVS - Equipment: Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 59; injuries: none; flight instructor, commercial, airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review July 11, 2023; seat: left; restraint: lap only; flight hours: 12,920 total, 2,625 in this make and model, 11,454 as pilot in command, 118 in the last 90 days, 34 in the last 30 days, 0.2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Night - Wind: 80° at 4 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 48 °F, dew point 27 °F - Altimeter: 30.53 inHg - Observed at: KRVS, 3 nm away - METAR: KRVS 132353Z 08004KT 10SM CLR 09/M03 A3053 RMK AO2 SLP347 T00891033 10167 20089 51005 ## 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 20231213020019A](https://openairdocs.org/incident/20231213020019A), Dec 13, 2023: Cessna T210F, Sapulpa, OK, Substantial damage. Pilot stated, " departed tulsa riverside airport (krvs) westbound heading 230 at approx 1720. Leveled off at 3500 MSL, after about 1 minute the engine lost all… ## Docket (3 files) The files NTSB released with the investigation on January 14, 2025, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=193524. 13.5 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 6.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17317470&FileExtension=pdf&FileName=cen24la063%20ntsb%20form%206120_Redacted-Rel.pdf - Logbooks (item 2, PDF, 5 pages, 6.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17318495&FileExtension=pdf&FileName=Logbooks%20(reduced)_Redacted-Rel.pdf - Photos (item 3, PDF, 4 pages, 5 photos, 835 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17325555&FileExtension=pdf&FileName=cen24la063%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.