# NTSB CEN10CA172: Kinney Kevin Zenith 601XL, N61601, Warren, OH, March 20, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: March 20, 2010, 09:00 local (13:00 UTC) - Place: Warren, OH - Coordinates: 39.462223, -84.251945 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=39.4622&lon=-84.2519&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Defining event: [Enroute: Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report July 1, 2010 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA-Cincinnati FSDO - NTSB case key (mKey): 75571 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN10CA172 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/75571/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=75571 - Page: https://openairdocs.org/ntsb/CEN10CA172 ## Probable cause A total loss of engine power due to the failure of an oil hose due to improper installation of the hose. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Eng oil sys (airframe furnish): eng oil dist (airframe furn)](https://openairdocs.org/ntsb-findings/01057920): Aircraft › Aircraft power plant · Failure (probable cause); cases with it: [Kinney Kevin ZENITH 601XL, 1 case](https://openairdocs.org/ntsb-findings/01057920/cases.md?model=056269E), [All aircraft, 18 cases](https://openairdocs.org/ntsb-findings/01057920/cases.md) - [Eng oil sys (airframe furnish): eng oil dist (airframe furn)](https://openairdocs.org/ntsb-findings/01057920): Aircraft › Aircraft power plant · Incorrect service/maintenance (probable cause); cases with it: [Kinney Kevin ZENITH 601XL, 1 case](https://openairdocs.org/ntsb-findings/01057920/cases.md?model=056269E), [All aircraft, 18 cases](https://openairdocs.org/ntsb-findings/01057920/cases.md) - [Fluids: oil](https://openairdocs.org/ntsb-findings/01071020): Aircraft › Fluids/misc hardware · Fluid level; cases with it: [Kinney Kevin ZENITH 601XL, 1 case](https://openairdocs.org/ntsb-findings/01071020/cases.md?model=056269E), [All aircraft, 174 cases](https://openairdocs.org/ntsb-findings/01071020/cases.md) - [Maintenance: installation](https://openairdocs.org/ntsb-findings/02062035): Personnel issues › Task performance · Owner/builder (probable cause); cases with it: [Kinney Kevin ZENITH 601XL, 1 case](https://openairdocs.org/ntsb-findings/02062035/cases.md?model=056269E), [All aircraft, 371 cases](https://openairdocs.org/ntsb-findings/02062035/cases.md) - [Object/animal/substance: tree(s)](https://openairdocs.org/ntsb-findings/03022020): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Kinney Kevin ZENITH 601XL, 1 case](https://openairdocs.org/ntsb-findings/03022020/cases.md?model=056269E), [All aircraft, 933 cases](https://openairdocs.org/ntsb-findings/03022020/cases.md) - [Object/animal/substance: fence/fence post](https://openairdocs.org/ntsb-findings/03022047): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Kinney Kevin ZENITH 601XL, 1 case](https://openairdocs.org/ntsb-findings/03022047/cases.md?model=056269E), [All aircraft, 313 cases](https://openairdocs.org/ntsb-findings/03022047/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Prior to flight: Aircraft maintenance event](https://openairdocs.org/ntsb-events/040); cases with it: [Kinney Kevin ZENITH 601XL, 1 case](https://openairdocs.org/ntsb-events/040/sequence.md?model=056269E), [All aircraft, 484 cases](https://openairdocs.org/ntsb-events/040/sequence.md) - [Enroute: Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340) (defining event); cases with it: [Kinney Kevin ZENITH 601XL, 1 case](https://openairdocs.org/ntsb-events/340/sequence.md?model=056269E), [All aircraft, 820 cases](https://openairdocs.org/ntsb-events/340/sequence.md) - [Enroute: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341); cases with it: [Kinney Kevin ZENITH 601XL, 1 case](https://openairdocs.org/ntsb-events/341/sequence.md?model=056269E), [All aircraft, 3,820 cases](https://openairdocs.org/ntsb-events/341/sequence.md) - [Emergency descent: Off-field or emergency landing](https://openairdocs.org/ntsb-events/440); cases with it: [Kinney Kevin ZENITH 601XL, 1 case](https://openairdocs.org/ntsb-events/440/sequence.md?model=056269E), [All aircraft, 3,365 cases](https://openairdocs.org/ntsb-events/440/sequence.md) - [Landing: Landing gear collapse](https://openairdocs.org/ntsb-events/094); cases with it: [Kinney Kevin ZENITH 601XL, 1 case](https://openairdocs.org/ntsb-events/094/sequence.md?model=056269E), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) ## Analysis The pilot reported that the purpose of the flight was to conduct flight testing of the amateur-built experimental airplane. The pilot was also the owner/builder. He stated that while conducting some clearing turns in preparation for slow flight testing, he observed an oil pressure warning on the engine monitor. The indicated oil pressure was zero. He immediately turned toward the airport and reduced engine power to idle. About 60 seconds after the oil pressure warning, the engine lost power completely. The pilot established best glide airspeed and set up for a forced landing. He noted that he overshot the first field he had selected, but then settled on a second field. The airplane clipped two sets of trees during the approach and struck a wire fence during the landing. The pilot estimated that the airplane slid 20 feet after touching down. A postaccident inspection revealed a failure of an oil hose. Specifically, the return hose from the oil cooler had a 1-inch longitudinal split at a bend in the line. The pilot commented that he might not have properly accounted for the compound S-bend at that location on installation. The airplane had accumulated about 5.4 hours at the time of the accident. The airplane received damage to the firewall and fuselage. ## Factual narrative The pilot reported that the purpose of the flight was to conduct flight testing of the amateur-built experimental airplane. The pilot was also the owner/builder. He stated that while conducting some clearing turns in preparation for slow flight testing, he observed an oil pressure warning on the engine monitor. The indicated oil pressure was zero. He immediately turned toward the airport and reduced engine power to idle. About 60 seconds after the oil pressure warning, the engine lost power completely. The pilot established best glide airspeed and set-up for a forced landing. He noted that he overshot the first field he had selected, but then settled on a second field. The airplane clipped two sets of trees during the approach and struck a wire fence during the landing. The pilot estimated that the airplane slid 20 feet after touching down. A post accident inspection revealed a failure of an oil hose. Specifically, the return hose from the oil cooler had a 1-inch longitudinal split at a bend in the line. The pilot commented that he might not have properly accounted for the compound S-bend at that location on installation. The airplane had accumulated about 5.4 hours at the time of the accident. ## Aircraft - Registration: [N61601](https://openairdocs.org/deregistered/N61601-2017-06-19), registration cancelled 2017-06-19, S/N 6-4602, built 2009 (OpenAirDocs) - Reported make and model: KINNEY KEVIN ZENITH 601XL - Registry model: [Kinney Kevin ZENITH 601XL](https://openairdocs.org/model/kinney-kevin-zenith-601xl) (registry code 056269E) (OpenAirDocs) - Registry engine: [Jabiru 3300](https://openairdocs.org/engine/jabiru-3300) (registry code 34801, 4 cycle) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 6-4602 - Airframe hours: 5.4 - Engines: JABIRU 3300 120 horsepower reciprocating - Damage: Destroyed - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, August 28, 2009 - Departed: I68, Lebanon, OH - Destination: I68, Lebanon-Warren, OH - Airport: I68, Lebanon-Warren County ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 46; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review February 26, 2009; seat: left; flight hours: 149 total, 6 in this make and model, 77 as pilot in command, 2 in the last 90 days, 1 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 190° at 4 knots - Visibility: 10 statute miles - Temperature: 52 °F, dew point 39 °F - Altimeter: 30.01 inHg - Observed at: MGY, 8 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 20100320030189A](https://openairdocs.org/incident/20100320030189A), Mar 20, 2010: Kinney Kevi ZENITH 601X, Lebanon, OH, Substantial damage. Oil line from oil cooler to filter split allowing oil to escape from the engine. Engine failed and aircraft landed in a field hitting tops of trees, a wire… ## Docket (3 files) The files NTSB released with the investigation on April 26, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=75571. 954 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 845 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40328864&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Conversation Record -- Pilot (item 2, .PDF, 56 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40328865&FileExtension=.PDF&FileName=Conversation%20Record%20--%20Pilot-Master.PDF - Conversation Record -- FAA Inspector (item 3, .PDF, 53 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40328866&FileExtension=.PDF&FileName=Conversation%20Record%20--%20FAA%20Inspector-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.