# NTSB CHI08CA139: Cessna 172N, N75528, Blue Ash, OH, May 24, 2008 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: May 24, 2008, 08:45 local (12:45 UTC) - Place: Blue Ash, OH - Coordinates: 39.246665, -84.388885 - Nearby events: https://openairdocs.org/map.md?lat=39.2467&lon=-84.3889&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Defining event: [Approach: Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report June 30, 2008 - Report: Approved by Office Director - Parties: Cincinnati, OH, FSDO - NTSB case key (mKey): 68149 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI08CA139 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/68149/pdf - Page: https://openairdocs.org/ntsb/CHI08CA139 ## Probable cause The separation of the throttle cable from the linkage during the approach to land and the altitude/clearance not being available to the pilot during the forced landing. Contributing to the accident was the electrical wires the airplane impacted. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Object/animal/substance: wire](https://openairdocs.org/ntsb-findings/03022032): Environmental issues › Physical environment · Contributed to outcome (probable cause); cases with it: [Cessna 172N, 7 cases](https://openairdocs.org/ntsb-findings/03022032/cases.md?model=2072434), [All aircraft, 588 cases](https://openairdocs.org/ntsb-findings/03022032/cases.md) - [Performance/control parameters: altitude](https://openairdocs.org/ntsb-findings/01062012): Aircraft › Aircraft oper/perf/capability · Attain/maintain not possible (probable cause); cases with it: [Cessna 172N, 8 cases](https://openairdocs.org/ntsb-findings/01062012/cases.md?model=2072434), [All aircraft, 1,310 cases](https://openairdocs.org/ntsb-findings/01062012/cases.md) - [Engine fuel and control](https://openairdocs.org/ntsb-findings/01057300): Aircraft › Aircraft power plant · Failure (probable cause); cases with it: [Cessna 172N, 1 case](https://openairdocs.org/ntsb-findings/01057300/cases.md?model=2072434), [All aircraft, 49 cases](https://openairdocs.org/ntsb-findings/01057300/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Approach: Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340) (defining event); cases with it: [Cessna 172N, 11 cases](https://openairdocs.org/ntsb-events/340/sequence.md?model=2072434), [All aircraft, 820 cases](https://openairdocs.org/ntsb-events/340/sequence.md) - [Emergency descent: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Cessna 172N, 134 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2072434), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) - [Uncontrolled descent: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Cessna 172N, 134 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2072434), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis On the student pilot's sixth practice landing approach, he pulled the throttle back and the engine went to full power. He pulled the mixture control out to stop the engine running at full power. He set up a best glide speed and determined that for the conditions present that the "approach would fall short of the runway." The wheels impacted electric wires and the airplane came to rest inverted. Federal Aviation Administration Inspectors examined the wreckage and found that the throttle cable end separated from the linkage. ## Factual narrative On the student pilot's sixth practice landing approach, he pulled the throttle back and the engine went to full power. He pulled the mixture control out to stop the engine running at full power. He set up best glide speed and determined that for the conditions present that the "approach would fall short of the runway." The wheels impacted electric wires and the airplane came to rest inverted. Federal Aviation Administration Inspectors examined the wreckage and found that the throttle cable end separated from the linkage. ## Aircraft - Registration: [N75528](https://openairdocs.org/deregistered/N75528-2010-04-19), registration cancelled 2010-04-19, S/N 17267783, built 1976 (OpenAirDocs) - Reported make and model: Cessna 172N - Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17267783 - Airframe hours: 16354 - Engines: Lycoming O-320-H2AD 160 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Blue Ash Aviation LLC - Airworthiness certificate: Standard, Normal - Last inspection: Continuous airworthiness, May 1, 2008 - Departed: ISZ, Blue Ash, OH - Airport: ISZ, Cincinnati-Blue Ash Airport, runway 6, 3,499 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 58; injuries: none; student; medical: class 3, with waivers/limitations; seat: left; flight hours: 128 total, 122 in this make and model, 51 as pilot in command, 12 in the last 90 days, 3 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 50° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 57 °F, dew point 46 °F - Altimeter: 30.18 inHg - Observed at: LUK ## 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 20080524840169A](https://openairdocs.org/incident/20080524840169A), May 24, 2008: Cessna 172N, Cincinnati, OH, Destroyed. (-23) On final approach to runway 06 at isz the aircraft encountered power lines, flipped, then struck the airport perimeter fence and ground. There were no… 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.