# NTSB NYC08CA125: Cessna 140, N2086V, Halls, TN, February 19, 2008 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: February 19, 2008, 17:45 local (23:45 UTC) - Place: Halls, TN - Coordinates: 35.903331, -89.397224 - Nearby events: https://openairdocs.org/map.md?lat=35.9033&lon=-89.3972&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 April 30, 2008 - Report: Approved by Office Director - Parties: FAA/FSDO - NTSB case key (mKey): 67630 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC08CA125 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/67630/pdf - Page: https://openairdocs.org/ntsb/NYC08CA125 ## Probable cause The flight instructor's inadequate remedial action. Contributing to the accident was the student pilot's failure to maintain directional control during the landing roll. ## 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: [Cessna 140, 27 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2071602), [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 · Student/instructed pilot (probable cause); cases with it: [Cessna 140, 56 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2071602), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Action: delayed action](https://openairdocs.org/ntsb-findings/02041025): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Cessna 140, 6 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md?model=2071602), [All aircraft, 894 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md) - [Airport facilities/design](https://openairdocs.org/ntsb-findings/03017000): Environmental issues › Operating environment · Not specified; cases with it: [Cessna 140, 1 case](https://openairdocs.org/ntsb-findings/03017000/cases.md?model=2071602), [All aircraft, 52 cases](https://openairdocs.org/ntsb-findings/03017000/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 140, 46 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2071602), [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: [Cessna 140, 32 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2071602), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The certified flight instructor (CFI) was preparing the student pilot to solo. The airplane touched down uneventfully, however, toward the end of the landing roll, the CFI instructed the student pilot to make a 180-degree turn, and back-taxi on the runway. As the student pilot began a right turn, the airplane traveled over a hump in the runway, which startled the student pilot. The student pilot applied right rudder in an attempt to move away from the hump, and the CFI perceived him as over-controlling the airplane. The CFI inputted left rudder pedal; however, the student pilot had also depressed the right brake. The airplane continued to turn right, the left main landing gear traveled off the runway, and the left wing contacted a berm causing substantial damage. Examination of the wreckage did not reveal any preimpact mechanical malfunctions, nor did the pilots report any. ## Factual narrative The certified flight instructor (CFI) stated that he was preparing the student pilot to solo in a Cessna 140. The airplane touched down uneventfully on runway 36, a 4,700-foot-long, 75-foot-wide, concrete runway. Toward the end of the landing roll, the CFI instructed the student pilot to make a 180-degree turn, and back-taxi on the runway. As the student pilot began a right turn, the airplane traveled over a hump in the runway, which startled the student pilot. The student pilot applied right rudder in an attempt to move away from the hump, and the CFI perceived him as over-controlling the airplane. The CFI inputted left rudder pedal; however, the student pilot had also depressed the right brake. The airplane continued to turn right, and the left main landing gear traveled off the runway, into a berm. The left wing subsequently struck the berm, and sustained damage to the wing spar. Examination of the wreckage by a Federal Aviation Administration inspector did not reveal any preimpact mechanical malfunctions, nor did the pilots report any. ## Aircraft - Registration: [N2086V](https://openairdocs.org/deregistered/N2086V-2013-08-22), registration cancelled 2013-08-22, S/N 14369, built 1948 (OpenAirDocs) - Reported make and model: Cessna 140 - Registry model: [Cessna 140](https://openairdocs.org/model/cessna-140) (registry code 2071602) (OpenAirDocs) - Registry engine: [Continental C90 series](https://openairdocs.org/engine/continental-c90-series) (registry code 17009, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 14369 - Airframe hours: 3000 - Engines: Continental C-85 85 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: David A Dalquist - Airworthiness certificate: Standard, Utility - Last inspection: Annual, August 1, 2007 - Departed: M31, Halls, TN - Destination: M31, Halls, TN - Airport: M31, Arnold Field, runway 36, 4,700 × 75 ft, concrete ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 68; injuries: none; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review February 1, 2006; seat: rear; flight hours: 8,448 total, 33 in this make and model, 85 in the last 90 days, 3 in the last 30 days, 3 in the last 24 hours - Student pilot; age 48; injuries: none; student; medical: class 3, with waivers/limitations; seat: left; flight hours: 48 total, 6 in this make and model, 20 as pilot in command, 6 in the last 90 days, 5 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 3 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 43 °F, dew point 19 °F - Altimeter: 30.15 inHg - Observed at: DYR, 5 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 20080219011539A](https://openairdocs.org/incident/20080219011539A), Feb 19, 2008: Cessna 140, Halls, TN, Substantial damage. (-23) Pilot and student were practicing ground taxi and the airplane ground looped. The instructor states the student pilot stepped on the right brake pedal… 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.