# NTSB LAX06CA145: Cessna 170B, N3190A, Redlands, CA, April 23, 2006 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: April 23, 2006, 12:45 local (19:45 UTC) - Place: Redlands, CA - Coordinates: 34.085277, -117.146385 - Nearby events: https://openairdocs.org/map.md?lat=34.0853&lon=-117.1464&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report August 29, 2006 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 63558 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX06CA145 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/63558/pdf - Page: https://openairdocs.org/ntsb/LAX06CA145 ## Probable cause the student's inadequate compensation for the crosswind gust and failure to maintain directional control. Also causal was the flight instructor's inadequate supervision of the flight, and his failure to maintain directional control. A factor was control interference between the two pilots during the initial stages of the loss of control. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, takeoff - roll/run - weather condition - crosswind (contributing factor) - compensation for wind conditions - inadequate, dual student (cause) - weather condition - gusts (contributing factor) - directional control - not maintained, flightcrew (cause) - ground loop/swerve - inadvertent, pilot in command(cfi) - supervision - inadequate, pilot in command(cfi) (cause) - control interference - encountered, pilot in command(cfi) (contributing factor) - On ground/water encounter with terrain/water, takeoff - roll/run - terrain condition - ditch - object - fence ## Analysis During the takeoff roll the pilots lost directional control of the airplane and swerved off the runway. The airplane was substantially damaged upon hitting a fence and came to rest in a gully 200 to 300 feet north of the runway. The certified flight instructor (CFI) indicated that he was providing dual instruction to his student, and they lost control of the airplane upon encountering a 90-degee, 10-knot, wind gust. He also reported that during the mishap there was control interference difficulties between himself and the student that made regaining control difficult. ## Factual narrative On April 23, 2006, about 1245 Pacific daylight time, a Cessna 170B, N3190A, veered off the runway and collided with obstructions during takeoff from runway 26 at the Redlands Municipal Airport, California. Visual meteorological conditions prevailed, and no flight plan had been filed. The airplane was substantially damaged. Neither the private pilot receiving instruction, the certified flight instructor (CFI), nor a passenger was injured. The flight was performed under the provisions of 14 CFR Part 91, and it was originating at the time of the accident. According to the CFI, during the takeoff roll a wind gust was encountered. Control of the airplane was lost. The airplane swerved off the runway, hit a fence, and came to rest in a gully between 200 and 300 feet north of runway 26. The student pilot reported to the National Transportation Safety Board investigator that he was receiving tail wheel instruction "when the aircraft became uncontrollable on takeoff." The CFI reported that a contributing factor in the accident was "control interference difficulties" between the pilot and the CFI. The CFI reported that the wind was from 350 degrees, and it was gusting to 10 knots. The CFI indicated that he has about 3,137 total hours of flying experience. The student had about 65 hours of experience. ## Aircraft - Registration: [N3190A](https://openairdocs.org/deregistered/N3190A-2006-06-19), registration cancelled 2006-06-19, S/N 25834, built 1953 (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: 25834 - Airframe hours: 4300 - Engines: Continental O-300 145 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Robert E. Spangler - Airworthiness certificate: Standard, Normal; Standard, Utility - Last inspection: Annual, January 1, 2006 - Departed: L12, Redlands, CA - Destination: CCB, Upland, CA - Airport: L12, Redlands Municipal, runway 26, 4,505 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 61; injuries: none; flight instructor, commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review April 1, 2006; seat: right; flight hours: 3,137 total, 12 in this make and model, 3,093 as pilot in command, 64 in the last 90 days, 37 in the last 30 days, 5 in the last 24 hours - Pilot; age 37; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review September 1, 2005; seat: left; flight hours: 65 total, 5 in this make and model, 5 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 350° at 10 knots, gusting 10 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 64 °F - Altimeter: 29.89 inHg ## 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 20060423006299A](https://openairdocs.org/incident/20060423006299A), Apr 23, 2006: Cessna 170B, Redlands, CA, Substantial damage. (-23) During an instrumental flight at Redlands airport, pilot lost directional control of aircraft during take-off and crashed into a wash area about 300… 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.