# NTSB GAA16CA285: Maule M5, N5635M, Hamilton, MT, June 5, 2016 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: June 5, 2016, 10:00 local (16:00 UTC) - Place: Hamilton, MT - Coordinates: 46.255832, -114.125556 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=46.2558&lon=-114.1256&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: No injuries - Injuries: 3 uninjured - Status: Completed, report August 31, 2016 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 93328 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA16CA285 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/93328/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=93328 - Page: https://openairdocs.org/ntsb/GAA16CA285 ## Probable cause The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and a 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: [Maule M-5-235C, 8 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=5460135), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Maule M-5-235C, 11 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=5460135), [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. - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Maule M-5-235C, 8 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=5460135), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Maule M-5-235C, 8 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=5460135), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Maule M-5-235C, 2 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=5460135), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Maule M-5-235C, 18 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=5460135), [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 landing roll the airplane veered sharply to the left, and the left wing impacted the runway. The pilot further reported that the airplane continued to turn to the left off the runway onto loose soil and nosed over. The airplane sustained substantial damage to right lift struts. According to the pilot, there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. ## Factual narrative The pilot of the tailwheel equipped airplane reported that during the landing roll the airplane veered sharply to the left, and the left wing impacted the runway. The pilot further reported that the airplane continued to turn to the left off the runway onto loose soil and nosed over. The airplane sustained substantial damage to right lift struts. According to the pilot, there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. ## Aircraft - Registration: [N5635M](https://openairdocs.org/aircraft/N5635M), registered now, S/N 7279C (OpenAirDocs) - Reported make and model: MAULE M5 (235C) - Registry model: [Maule M-5-235C](https://openairdocs.org/model/maule-m-5-235c) (registry code 5460135) (OpenAirDocs) - Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 7279C - Year built: 1979 - Airframe hours: 2767.9 - Engines: Lycoming O-540-J1A5D 235 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, February 3, 2016 - Departed: 1U1, MOOSE CREEK RANGER STATION, ID - Destination: 6S5, Hamilton, MT - Airport: 6S5, Ravalli County, runway 16, 4,200 × 75 ft, asphalt - Equipment: Satellite tracking device, Onboard weather, Handheld GPS, Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 48; injuries: none; flight instructor, airline transport; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review May 6, 2016; seat: right; flight hours: 19,100 total, 310 in this make and model, 9,090 as pilot in command, 176 in the last 90 days, 38 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 66 °F, dew point 45 °F - Altimeter: 30.12 inHg - Observed at: KMSO, 40 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 20160605006779A](https://openairdocs.org/incident/20160605006779A), Jun 5, 2016: Maule M-5-235C, Hamilton, MT, Substantial damage. Passenger in front right seat had foot on one brake upon touchdown causing the pilot to lose directional control, unable to overcome/correct. Aircraft went off… ## Docket (2 files) The files NTSB released with the investigation on August 16, 2016, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=93328. 2.3 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 2.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443166&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Accident Photo (Courtesy of FAA) (item 2, .PDF, 1 photo, 134 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443167&FileExtension=.PDF&FileName=Accident%20Photo%20(Courtesy%20of%20FAA)-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.