# NTSB GAA19CA393: Cessna A185, N612TW, Stanley, ID, July 2, 2019 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 2, 2019, 10:23 local (16:23 UTC) - Place: Stanley, ID - Coordinates: 44.20861, -114.934448 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=44.2086&lon=-114.9344&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report December 2, 2019 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 99795 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA19CA393 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/99795/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=99795 - Page: https://openairdocs.org/ntsb/GAA19CA393 ## Probable cause The pilot's failure to maintain directional control and his overapplication of brakes during an aborted takeoff, which resulted in a runway excursion and subsequent nose-over. ## 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: [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Landing gear system: brake](https://openairdocs.org/ntsb-findings/01023242): Aircraft › Aircraft systems · Incorrect use/operation (probable cause); cases with it: [All aircraft, 297 cases](https://openairdocs.org/ntsb-findings/01023242/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Takeoff: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md) - [Takeoff: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Takeoff: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot of the tailwheel-equipped airplane reported that, during the takeoff roll, the airplane abruptly veered right, and he overcorrected to the left. The pilot then reduced the engine power to idle and overcorrected to the right. He attempted to correct by applying full brakes, but the airplane exited the runway to the left and nosed over. The airplane sustained substantial damage to the vertical stabilizer, rudder, and the right and left wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Factual narrative The pilot of the tailwheel equipped airplane reported that, during the takeoff roll, the airplane abruptly veered right and he overcorrected to the left. The pilot then reduced the engine power to idle, and over corrected to the right. He attempted to correct and applied full brakes, but the airplane exited the runway to the left and nosed over. The airplane sustained substantial damage to the vertical stabilizer, rudder, right and left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. An automated weather observation station located 2 miles to the south, reported that, about 25 minutes after the accident, the wind was from 340° at 3 knots. The airplane was taking off on runway 17. ## Aircraft - Registration: N612TW (not matched to a registry record) - Reported make and model: Cessna A185 (F) - Category: Airplane - Serial number: 18504244 - Year built: 1981 - Airframe hours: 3265 - Engines: Continental IO-520 D39B 285 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal; Standard, Utility - Last inspection: 100 hour, June 1, 2019 - Departed: 2U7, Stanley, ID - Destination: 3U2, Yellow Pine, ID - Airport: 2U7, Stanley, runway 17, 4,300 × 150 ft, dirt - Equipment: Auto-pilot, Handheld GPS, Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 76; injuries: none; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: basicmed, with waivers/limitations; last flight review September 13, 2018; seat: left; flight hours: 17,000 total, 1,752 in this make and model, 17,000 as pilot in command, 19 in the last 90 days, 17 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 340° at 3 knots - Temperature: 64 °F, dew point 36 °F - Altimeter: 30.05 inHg - Observed at: KSNT, 2 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 20190702009049A](https://openairdocs.org/incident/20190702009049A), Jul 2, 2019: Cessna A185F, Stanley, ID, Substantial damage. During departure at Stanley Airport (2U7) the Cessna A185F veered hard and the left main wheel went off the runway digging in to the dirt and the aircraft… ## Docket (3 files) The files NTSB released with the investigation on September 6, 2019, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=99795. 942 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 580 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40475584&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Pilot Statement (item 2, .PDF, 25 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40475585&FileExtension=.PDF&FileName=Pilot%20Statement-Master.PDF - Accident Photos (item 3, .PDF, 337 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40475586&FileExtension=.PDF&FileName=Accident%20Photos-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.