# NTSB CEN11CA523: Cessna 195, N195SM, Oshkosh, WI, July 28, 2011

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: July 27, 2011, 19:56 local (Jul 28, 2011, 00:56 UTC)
- Place: Oshkosh, WI
- Coordinates: 43.984165, -88.556945
- Nearby events: https://openairdocs.org/map.md?lat=43.9842&lon=-88.5569&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Defining event: [Taxi-from runway: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report October 20, 2011
- Report: Approved by Office Director
- NTSB office: Central Region
- Parties: FAA Milwaukee FSDO
- NTSB case key (mKey): 81258
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN11CA523
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/81258/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=81258
- Page: https://openairdocs.org/ntsb/CEN11CA523

## Probable cause

The failure of the left brake which resulted in a ground-loop.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Landing gear system: brake](https://openairdocs.org/ntsb-findings/01023242): Aircraft › Aircraft systems · Malfunction (probable cause); cases with it: [Cessna 195, 1 case](https://openairdocs.org/ntsb-findings/01023242/cases.md?model=2073102), [All aircraft, 297 cases](https://openairdocs.org/ntsb-findings/01023242/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Taxi-from runway: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330) (defining event); cases with it: [Cessna 195, 4 cases](https://openairdocs.org/ntsb-events/330/sequence.md?model=2073102), [All aircraft, 994 cases](https://openairdocs.org/ntsb-events/330/sequence.md)
- [Taxi-from runway: Dragged wing/rotor/float/other](https://openairdocs.org/ntsb-events/093); cases with it: [Cessna 195, 1 case](https://openairdocs.org/ntsb-events/093/sequence.md?model=2073102), [All aircraft, 319 cases](https://openairdocs.org/ntsb-events/093/sequence.md)

## Analysis

The pilot reported that he landed the tailwheel-equipped airplane and was receiving taxi signals from ground personnel. He reported that he applied both brakes hard, but the left brake failed and the airplane ground-looped. The airplane sustained substantial damage to the fuselage near the main landing gear. A postaccident inspection of the airplane revealed that the left brake was very weak, but there was no evidence of leakage.

## Factual narrative

The pilot reported that he landed the tail wheel equipped airplane and was receiving taxi signals to exit the runway from ground personnel. He reported that he applied both brakes hard, but the left brake failed. The airplane ground looped off the right side of the runway which resulted in substantial damage to the fuselage near the main landing gear. The inspection of the airplane revealed that the left brake was very weak, but there was no evidence of leakage.

## Aircraft

- Registration: [N195SM](https://openairdocs.org/aircraft/N195SM), registered now, S/N 7806, built 1949 (OpenAirDocs)
- Reported make and model: CESSNA 195
- Registry model: [Cessna 195](https://openairdocs.org/model/cessna-195) (registry code 2073102) (OpenAirDocs)
- Registry engine: [Jacobs R755A series](https://openairdocs.org/engine/jacobs-r755a-series) (registry code 35006, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 7806
- Airframe hours: 3700
- Engines: JACOBS R755A SERIES 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Jim Reiher
- Registered owner: Ocean Aviation Inc
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, December 31, 2010
- Departed: Fond de Lac, WI
- Destination: OSH, Oshkosh, WI
- Airport: OSH, Whitman Field, runway 09, 5,000 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 54; injuries: none; commercial; airplane ratings: single-engine sea, single-engine land; medical: class 2, with waivers/limitations; flight hours: 2,000 total, 800 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 5 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 75 °F

## Docket (1 files)

The files NTSB released with the investigation on September 7, 2011, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=81258. 1.1 MB in all.

- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40353015&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.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.

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