# NTSB WPR10LA241: Cessna 180, N3142C, Caldwell, ID, May 14, 2010 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: May 14, 2010, 17:30 local (23:30 UTC) - Place: Caldwell, ID - Coordinates: 43.659647, -116.68088 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=43.6596&lon=-116.6809&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: Minor injuries - Injuries: 1 minor, 1 uninjured - Status: Completed, report October 6, 2011 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration FSDO - NTSB case key (mKey): 76013 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR10LA241 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/76013/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=76013 - Page: https://openairdocs.org/ntsb/WPR10LA241 ## Probable cause A loss of directional control and runway excursion for undetermined reasons. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: landing gear brakes system](https://openairdocs.org/ntsb-findings/01023240): Aircraft › Aircraft systems · Not specified (probable cause); cases with it: [Cessna 180, 3 cases](https://openairdocs.org/ntsb-findings/01023240/cases.md?model=2072602), [All aircraft, 92 cases](https://openairdocs.org/ntsb-findings/01023240/cases.md) - [Not determined](https://openairdocs.org/ntsb-findings/05000000): Not determined › Not determined · Unknown/Not determined (probable cause); cases with it: [Cessna 180, 4 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=2072602), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md) - [Terrain: rough terrain](https://openairdocs.org/ntsb-findings/03021015): Environmental issues › Physical environment · Effect on equipment (probable cause); cases with it: [Cessna 180, 7 cases](https://openairdocs.org/ntsb-findings/03021015/cases.md?model=2072602), [All aircraft, 442 cases](https://openairdocs.org/ntsb-findings/03021015/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cessna 180, 80 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2072602), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Cessna 180, 23 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=2072602), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094); cases with it: [Cessna 180, 11 cases](https://openairdocs.org/ntsb-events/094/sequence.md?model=2072602), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) ## Analysis The pilot reported that he landed with a direct left crosswind and noted a steady half windsock deflection. The airplane bounced once before settling onto the runway. During the landing roll, he retracted the flaps to one notch and deflected the ailerons into the wind. Light right rudder deflection and right braking was required for the existing conditions. The pilot stated that as the landing roll progressed, the right brake failed to activate, and the airplane veered toward the side of the runway. The pilot did not want to risk aborting the landing and the airplane subsequently departed the left side of the runway surface into brush and rough terrain. The right main landing gear collapsed after bouncing across one ditch, and the right wing sustained substantial damage after the airplane bounced across a second ditch. The pilot stated that during his preflight inspection there were no signs of brake fluid leakage on the brake assembly or on the hangar floor, and that the right brake functioned normally during taxi and departure. Immediately after the accident, the pilot noted that although the wreckage was on top of the right main landing gear, the right tire was inflated, and the brake caliper was coated in brake fluid. Due to the damage, it could not be determined if a brake anomaly existed prior to the accident. ## Factual narrative On May 14, 2010, about 1730 Pacific daylight time, a Cessna 180, N3142C, experienced a right main landing gear collapse during a runway excursion at Oregon's Owyhee Reservoir State Airport near Caldwell, Idaho. The owner/pilot was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The private pilot was not injured, and one passenger sustained minor injuries. The airplane sustained substantial damage to the right wing from impact forces. The cross-country personal flight departed Caldwell about 1700, with a planned destination of Owyhee. Visual meteorological conditions prevailed, and no flight plan had been filed. The pilot reported that he landed on runway 13 with a direct left crosswind with a steady half windsock deflection. The airplane bounced once before settling onto the runway. He then went from two notches of flaps to one notch. During the landing roll, he had the ailerons deflected into the wind. He stated that the landing conditions required light right rudder and light right braking. The pilot reported that he had little or no response to the initial right brake application. He applied more pressure, and the brake pedal went all the way down to the cabin floor with no braking action. He pumped the brake several times, but they did not activate. The airplane veered toward the side of the runway. The pilot stated that the airplane was fully loaded, and he did not want to risk aborting the landing at this point and possibly going into the lake, which was along the runway's left side. He had been to this airport many times, and indicated that he was past his preplanned go/no-go abort point for the conditions encountered. The airplane departed the left side of the runway surface into brush and rough terrain. The airplane collided with one ditch that was parallel to the runway, and bounced; the right main landing gear collapsed on ground contact. The airplane bounced across a second ditch, and came down on the right wing. The airplane slid another 30 feet before coming to a stop. The pilot stated that there were no signs of brake fluid leakage during his preflight inspection on the brake assembly or on the hangar floor. The right brake functioned normally during taxi and departure. He noted that although the wreckage was on top of the right main landing gear, the right tire was inflated, and the brake caliper was coated in brake fluid immediately after he exited the airplane. Due to the damage, investigators were unable to determine if a brake anomaly existed prior to the accident, and if so, why the malfunction occurred. ## Aircraft - Registration: [N3142C](https://openairdocs.org/aircraft/N3142C), registered now, S/N 30941, built 1954 (OpenAirDocs) - Reported make and model: CESSNA 180 - Registry model: [Cessna 180](https://openairdocs.org/model/cessna-180) (registry code 2072602) (OpenAirDocs) - Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 30941 - Airframe hours: 4453 - Engines: Teledyne Continental Motors O-470 265 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: ITM Electronics, Inc - Registered owner: ITM Electronics, Inc - Last inspection: Annual, April 23, 2010 - Departed: 28U, Caldwell, ID - Destination: EUL, Caldwell, ID - Airport: 28U, Owyhee Reservoir State, runway 13, 1,840 × 30 ft, gravel ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 52; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review May 3, 2009; seat: left; flight hours: 415 total, 310 in this make and model, 415 as pilot in command, 9 in the last 90 days, 4 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 30° at 4 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 73 °F, dew point 34 °F - Altimeter: 30.04 inHg - Observed at: KEUL, 35 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 20100514034359A](https://openairdocs.org/incident/20100514034359A), May 14, 2010: Cessna 180, Owyhee Reservoi, OR, Substantial damage. During landing, pilot reported little to no braking action from the right brake. The aircraft groundlooped, causing significant damage to the right wing. ## Docket (1 files) The files NTSB released with the investigation on August 31, 2011, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=76013. 700 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 700 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40351943&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. --- 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.