# NTSB CEN20CA296: Cessna 170B, N8193A, Bloomington, IN, July 20, 2020 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Data collection · Final report - Date: July 20, 2020, 15:23 local (19:23 UTC) - Place: Bloomington, IN - Coordinates: 39.160556, -86.541389 - Nearby events: https://openairdocs.org/map.md?lat=39.1606&lon=-86.5414&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - 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: Central Region - Parties: Federal Aviation Administration; IND FSDO - NTSB case key (mKey): 101642 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN20CA296 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/101642/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=101642 - Page: https://openairdocs.org/ntsb/CEN20CA296 ## Probable cause The pilot's failure to attain/maintain directional control during landing that resulted in a ground loop and impact with terrain. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cessna 170B, 74 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2072306), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cessna 170B, 84 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2072306), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Cessna 170B, 52 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2072306), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The commercial pilot stated that the approach to the runway was normal and during the subsequent landing on all three landing gear wheels, a quartering tailwind raised the airplane tail and the right wing. The airplane ground looped, and the left wing struck the ground. The pilot reported there was no mechanical malfunction/failure of the airplane. The pilot stated that damage to airplane was minor; however, a photo showed the left wing sustained structural damage inboard of the wing tip. There was also damage to the left wing aileron and elevator. ## Factual narrative The commercial pilot stated that the approach to the runway was normal and during the subsequent landing on all three landing gear wheels, a quartering tailwind raised the airplane tail and the right wing. The airplane ground looped, and the left wing struck the ground. The pilot reported there was no mechanical malfunction/failure of the airplane. The pilot stated that damage to airplane was minor; however, a photo showed the left wing sustained structural damage inboard of the wing tip. There was also damage to the left wing aileron and elevator. ## Aircraft - Registration: [N8193A](https://openairdocs.org/aircraft/N8193A), registered now, S/N 25045 (OpenAirDocs) - Reported make and model: Cessna 170B - Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs) - Registry engine: [Continental C145 series](https://openairdocs.org/engine/continental-c145-series) (registry code 17012, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 25045 - Year built: 1952 - Engines: Continental C145 SERIES 145 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Pilot - Registered owner: Pilot - Airworthiness certificate: Standard, Normal - Departed: I80, Noblesville, IN - Destination: BMG, Bloomington, IN - Airport: BMG, Monroe County Airport, runway 17, 6,500 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 61; injuries: none; flight instructor, commercial; airplane ratings: single-engine sea, single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, without waivers/limitations; last flight review April 8, 2019; seat: left ## Weather - Conditions: Visual (VMC), Day - Wind: 310° at 3 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 70 °F - Altimeter: 30.01 inHg - Observed at: BMG ## 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 20200720009339A](https://openairdocs.org/incident/20200720009339A), Jul 20, 2020: Cessna 170B, Bloomington, IN, Substantial damage. On July 20, 2020, at 15:23 local time/19:23 UTC, N8139A, a Cessna 170B piloted by a [privacy data omitted], ground looped on landing rollout. The aircraft… ## Other investigations on N8193A (1) 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. - [NTSB CHI69D0478](https://openairdocs.org/ntsb/CHI69D0478-201700), Feb 1, 1969: Cessna 170B (N8193A), Franklin, IN, substantial damage ## Docket (3 files) The files NTSB released with the investigation on October 9, 2020, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=101642. 5.7 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 5.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=11351467&FileExtension=pdf&FileName=6120%20Master_Redacted-Rel.pdf - Email from pilot regarding damage (item 2, PDF, 5 pages, 266 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=11351280&FileExtension=pdf&FileName=Email%20from%20Pilot%20Re_%20NTSB%20Accident%20Report%20Form%206120;%20N8193A_Redacted-Rel.pdf - Photos (item 3, PDF, 3 pages, 344 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=11351477&FileExtension=pdf&FileName=Photos-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.