# NTSB CHI05CA068: Piper PA-18-150, N66ND, Larimore, ND, February 9, 2005 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: February 9, 2005, 16:45 local (22:45 UTC) - Place: Larimore, ND - Coordinates: 47.906944, -97.640556 - Nearby events: https://openairdocs.org/map.md?lat=47.9069&lon=-97.6406&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report April 28, 2005 - Report: Approved by Office Director - Parties: Fargo, ND FSDO - NTSB case key (mKey): 60991 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI05CA068 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/60991/pdf - Page: https://openairdocs.org/ntsb/CHI05CA068 ## Probable cause The CFI's delay in applying remedial action which resulted in a loss of directional control of the airplane. Factors associated with the accident were the student's excessive application of rudder and the snow bank which the airplane contacted. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, landing - roll - rudder - excessive, dual student (contributing factor) - remedial action - delayed, pilot in command(cfi) (cause) - directional control - not maintained, pilot in command(cfi) (cause) - On ground/water encounter with terrain/water, landing - roll - terrain condition - snowbank (contributing factor) - Nose over, landing - roll ## Analysis The airplane nosed over following a collision with a snow bank while landing. The purpose of the flight was for the certified flight instructor (CFI) to provide tailwheel training to a private pilot who was taking a tailwheel transition course. The CFI stated the student made the first landing. The CFI stated he then demonstrated a wheel landing. The student made two more landings with little assistance. The accident occurred on the student's fourth landing of the flight. The CFI stated the student landed on the main gear and after the tailwheel came down the airplane "turned slightly left of centerline." He stated the student overcorrected and the airplane veered abruptly to the right. The CFI stated he applied full left rudder, but it was too late. The airplane ground looped, struck a snow bank on side of the runway, and nosed over. ## Factual narrative On February 9, 2005, at 1645 central standard time, a Piper PA-18-150, N66ND, nosed over following a collision with a snow bank while landing on runway 12 (2,600 feet by 50 feet, dry asphalt) at the Larimore Municipal Airport (21L), Larimore, North Dakota. The certified flight instructor (CFI) and the private-rated student pilot were not injured. The airplane was substantially damaged. The 14 CFR Part 91 instructional flight was operating in visual meteorological conditions without a flight plan. The flight originated from Grand Forks (GFK), North Dakota, on 1600. The CFI reported the purpose of the flight was to provide tailwheel training to a private pilot who was taking a tailwheel transition course from the University of North Dakota. The CFI stated they departed GFK and flew to 21L to practice landings. He stated the student made the first landing. The CFI stated he then demonstrated a wheel landing. The student made two more landings with little assistance. The accident occurred on the student's fourth landing of the flight. The CFI stated the student landed on the main gear and after the tailwheel came down the airplane "turned slightly left of centerline." He stated the student overcorrected and the airplane veered abruptly to the right. The CFI stated he applied full left rudder, but it was too late. The airplane ground looped, struck a snow bank on side of the runway, and nosed over. ## Aircraft - Registration: [N66ND](https://openairdocs.org/aircraft/N66ND), registered now, S/N 1809046, built 1989 (OpenAirDocs) - Reported make and model: Piper PA-18-150 - Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1809046 - Engines: Lycoming O-320-A2B reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: UND Aerospace - Airworthiness certificate: Standard, Normal - Departed: GFK, Grand Forks, ND - Destination: 2L1, Larimore, ND ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 23; injuries: none; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: rear; flight hours: 975 total, 10 in this make and model, 103 in the last 90 days - Student pilot; age 18; injuries: none; private; airplane ratings: single-engine land; medical: class 1, valid medical--w/ waivers/lim; seat: front; flight hours: 151 total, 4 in this make and model, 12 in the last 90 days ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 4 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 12 °F, dew point 7 °F - Altimeter: 30.12 inHg - Observed at: GFK ## 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 20050209002539A](https://openairdocs.org/incident/20050209002539A), Feb 9, 2005: Piper PA18150, Larimore, ND, Substantial damage. (-23) On February 9, 2005, a Piper PA-18-150, N66ND, owned by the university of north dakota and piloted by [privacy data omitted] was substantially damaged… ## Other investigations on N66ND (1) 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. - [NTSB CHI94LA090](https://openairdocs.org/ntsb/CHI94LA090), Feb 21, 1994: Piper PA-18-150 (N66ND), Grand Forks, ND, substantial damage. Probable cause: FUEL STARVATION DUE TO THE IMPROPER POSITIONING OF THE FUEL TANK SELECTOR BY THE STUDENT PILOT. 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.