# NTSB SEA04LA072: Cessna 170B, N8252A, Nampa, ID, April 23, 2004 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: April 23, 2004, 13:30 local (19:30 UTC) - Place: Nampa, ID - Coordinates: 43.58139, -116.523056 - Nearby events: https://openairdocs.org/map.md?lat=43.5814&lon=-116.5231&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report December 28, 2004 - Report: Approved by Office Director - Parties: Boise FSDO - NTSB case key (mKey): 59110 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA04LA072 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/59110/pdf - Page: https://openairdocs.org/ntsb/SEA04LA072 ## Probable cause The right seat pilot's failure to maintain directional control during the initial part of the landing roll, and his improper handling of the aircraft (excessive braking) as the aircraft departed the side of the runway. Factors include the pilot's lack of recent experience in this make and model aircraft. ## 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 - directional control - not maintained, pilot in command (cause) - lack of recent experience in type of aircraft, pilot in command (contributing factor) - Nose over, landing - roll - aircraft handling - improper, pilot in command (cause) ## Analysis The pilot in the left seat, who had purchased the aircraft the day prior to the accident, started the flight by making two takeoffs and two full-stop landings. Both of his takeoff rolls were uneventful with no directional control difficulties, but because he was having trouble with directional control during landing, it was decided that the more experienced tail wheel pilot in the right seat would perform a takeoff and landing, during which the pilot in the left seat would keep his hands and feet on the controls in order to feel the control inputs made by the other pilot. The pilot in the right seat experienced "some difficulty" during the takeoff, but he was unsure if it was related to having the left seat pilot on the controls with him. He then made a landing, touching down near the centerline, and pulling the yoke to the "full back" position, while making sure the engine was at idle. Although the initial touchdown was uneventful, soon thereafter the aircraft veered to the right, and the pilot applied left rudder in an attempt to return it to the runway heading. Seeing that the application of rudder alone was not adequate, the pilot applied heavy left brake, but the aircraft continued to the right and exited the right side of the runway. As the aircraft exited the runway, the right seat pilot began applying right brake also, and soon thereafter the aircraft nosed over onto its back. Inspection and testing of the aircraft did not reveal any indication that there had been a brake malfunction or any anomaly in the rudder/tail wheel steering system that would have created an uncontrollable situation. In addition it was determined that although the right seat pilot had about 25 hours in this make and model airplane, it had been "many years" since he had flown one. ## Factual narrative On Friday, April 23, 2004, approximately 1330 mountain daylight time, a Cessna 170B, N8252A, nosed over after exiting the side of the runway during landing at Nampa Municipal Airport, Nampa, Idaho. Neither the private pilot/owner, who was in the left seat, nor the airline transport pilot, who was in the right seat, were injured. The aircraft, which is owned and operated by the pilot in the left seat, sustained substantial damage. The 14 CFR Part 91 personal pleasure flight, which had been in the pattern at Nampa for about 15 minutes, was being operated in visual meteorological conditions. No flight plan had been filed. There was no report of an ELT activation. According to the pilot in the left seat, who had purchased the aircraft the day prior to the accident, prior to the purchase he had no experience in this make and model airplane. He started the flight by making two takeoffs and two full-stop landings. He said that both of his takeoff rolls were uneventful, with no directional control difficulties, but during both landings he had problems keeping the aircraft heading straight down the runway, and the pilot in the right seat had to take control of the aircraft and bring it to a full stop. After those two landings, it was decided that the more experienced tail wheel pilot in the right seat would perform a takeoff and landing, during which the pilot in the left seat would keep his hands and feet on the controls in order to feel the control inputs made by the other pilot. According to the pilot in the right seat, who's flight instructor's certificate had expired in 1991, during the takeoff he experienced "some difficulty," but he was not sure if it was related to having the left seat pilot on the controls with him. Once he got in the air, he tested the brakes a couple of times, but could find no fault, and confirmed each had "plenty of pressure." He then made a landing, touching down near the centerline, and pulling the yoke to the "full back" position, while making sure the engine was at idle. Although the initial touchdown was uneventful, soon thereafter the aircraft veered to the right, and the pilot applied left rudder in an attempt to return it to the runway heading. Seeing that the application of rudder alone was not adequate, the pilot applied heavy left brake, but the aircraft continued to the right and exited the right side of the runway. As the aircraft exited the runway, the right seat pilot began applying right brake also, and soon thereafter the aircraft nosed over onto its back. The Federal Aviation Administration's post-accident inspection of the scene revealed a black skid mark on the runway surface created by the left main landing gear, and no indication of braking with right wheel until after the aircraft departed the runway surface. Inspection and testing of the aircraft did not reveal any indication that there had been a brake malfunction or any anomaly in the rudder/tail wheel steering system that would have created an uncontrollable situation. In an interview with the NTSB Investigator-In-Charge (IIC), the right seat pilot said that although he had about 25 hours in this make and model airplane, it had been "many years" since he had flown one. ## Aircraft - Registration: [N8252A](https://openairdocs.org/aircraft/N8252A), registered now, S/N 25104, built 1952 (OpenAirDocs) - Reported make and model: Cessna 170B - Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs) - Registry engine: [Continental C145 series](https://openairdocs.org/engine/continental-c145-series) (registry code 17012, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 25104 - Airframe hours: 3347 - Engines: Continental O-300 145 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Dwight R. Magnuson - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 1, 2003, 68 hours before - Departed: S67, Nampa, ID - Destination: S67 - Airport: S67, Nampa Municipal, runway 11, 5,000 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 63; injuries: none; flight instructor, airline transport; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; last flight review March 22, 2003; seat: right; flight hours: 20,000 total, 25 in this make and model, 19,500 as pilot in command, 30 in the last 90 days, 10 in the last 30 days, 2 in the last 24 hours - Pilot; age 55; injuries: none; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; last flight review August 9, 2003; seat: left; flight hours: 488 total, 2 in this make and model, 417 as pilot in command, 21 in the last 90 days, 6 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 64 °F ## 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 20040423005999A](https://openairdocs.org/incident/20040423005999A), Apr 23, 2004: Cessna 170B, Nampa, ID, Substantial damage. (-23) Pilot in command, allowed another pilot to make a landing in his aircraft. The pilot touched down on the runway and lost directional control. The… ## Other investigations on N8252A (2) 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 DEN85LA192](https://openairdocs.org/ntsb/DEN85LA192), Jul 17, 1985: Cessna 170B (N8252A), Missoula, MT, substantial damage - [NTSB SEA75DTI17](https://openairdocs.org/ntsb/SEA75DTI17), Jan 18, 1975: Cessna 170B (N8252A), Missoula, MT, substantial damage 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.