# NTSB LAX08CA287: Piper PA-22-150, N4143D, Dillon, MT, August 31, 2008 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: August 31, 2008, 12:00 local (18:00 UTC) - Place: Dillon, MT - Coordinates: 45.258888, -112.554168 - Nearby events: https://openairdocs.org/map.md?lat=45.2589&lon=-112.5542&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: 2 uninjured - Status: Completed, report January 22, 2009 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 68851 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX08CA287 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/68851/pdf - Page: https://openairdocs.org/ntsb/LAX08CA287 ## Probable cause The pilot-certificated passenger's failure to maintain directional control during landing and the pilot's delayed remedial action and inadequate supervision. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Action: incorrect action performance](https://openairdocs.org/ntsb-findings/02041015): Personnel issues › Action/decision · Copilot (probable cause); cases with it: [All aircraft, 1,386 cases](https://openairdocs.org/ntsb-findings/02041015/cases.md) - [Attention/monitoring: monitoring other person](https://openairdocs.org/ntsb-findings/02021535): Personnel issues › Psychological · Pilot (probable cause); cases with it: [All aircraft, 200 cases](https://openairdocs.org/ntsb-findings/02021535/cases.md) - [Action: delayed action](https://openairdocs.org/ntsb-findings/02041025): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [All aircraft, 894 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md) - [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) ## 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: [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: [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: [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot said that his pilot-certificated passenger was landing the tail-wheel airplane when he lost directional control during the landing roll. As the airplane was departing the runway, the pilot took over the flight controls in order to direct the airplane to the adjacent runway. The airplane impacted a gopher hole and nosed over. The engine firewall and vertical stabilizer were wrinkled, and three lift struts and both wing spars were bent. ## Factual narrative The pilot said that his pilot-certificated passenger was landing the tail-wheel airplane when he lost directional control during the landing roll. As the airplane was departing the runway, the pilot took over the flight controls in order to direct the airplane to the adjacent runway. The airplane impacted a gopher hole and nosed over. The engine firewall and vertical stabilizer were wrinkled, and three lift struts and both wing spars were bent. ## Aircraft - Registration: N4143D (not matched to a registry record) - Reported make and model: PIPER PA-22-150 - Category: Airplane - Serial number: 22-3154 - Airframe hours: 2780 - Engines: Lycoming O-320 150 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Dennis A. De Vivo - Registered owner: Dennis A. De Vivo - Airworthiness certificate: Standard, Normal - Departed: DLN, Dillon, MT - Destination: DLN, Dillon, MT - Airport: DLN, Dillon Airport, runway 21, 3,599 × 60 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 65; injuries: none; flight instructor, commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; seat: right; flight hours: 5,166 total, 1,100 in this make and model, 5,010 as pilot in command, 3 in the last 90 days, 3 in the last 30 days, 1 in the last 24 hours - Co-pilot; age 63; injuries: none; private; airplane ratings: single-engine land; medical: class 3; seat: left; flight hours: 950 total, 12 in the last 90 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 340° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 66 °F, dew point 43 °F - Altimeter: 29.70 inHg - Observed at: DLN ## 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 20080831844149A](https://openairdocs.org/incident/20080831844149A), Aug 31, 2008: Piper PA22150, Dillon, MT, Destroyed. (-23) On August 331, 2008, at approximately 12:00 noon, N4143D landed on runway 2 at Dillon Airport, (dln), Dillon, Montana. The flying pilot lost contorl of… 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.