# NTSB SEA00LA187: Cessna 172, N8315L, Newberg, OR, September 23, 2000 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Limited investigation · Final report - Date: September 23, 2000, 13:30 local (20:30 UTC) - Place: Newberg, OR - Coordinates: 45.319126, -122.980949 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=45.3191&lon=-122.9809&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: Serious injuries - Injuries: 2 serious - Status: Completed, report July 2, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 50341 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA00LA187 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/50341/pdf - Page: https://openairdocs.org/ntsb/SEA00LA187 ## Probable cause The pilot's failure to maintain a proper glide path on final approach. Factors include a vehicle on the roadway and a downdraft. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with object, approach - vfr pattern - final approach - object - vehicle (contributing factor) - proper glidepath - not maintained, pilot in command(cfi) (cause) - weather condition - downdraft (contributing factor) - Loss of control - in flight, approach - vfr pattern - final approach - In flight collision with terrain/water, approach - vfr pattern - final approach ## Analysis The certified flight instructor and student pilot were on final approach for the intended runway. Shortly before touchdown, the airplane encountered a downdraft and subsequently collided with a truck that was traveling on a road adjacent to the airport. ## Factual narrative On September 23, 2000, about 1330 Pacific daylight time, a Cessna 172, N8315L, sustained substantial damage after colliding with a vehicle while the airplane was on final approach to Chehalem Airpark, Newberg, Oregon. The airplane is owned and operated by Blue Max Flying Club, Incorporated, of Lake Oswego, Oregon, and was being operated as a visual flight rules (VFR) instructional flight under the provisions of Title 14, CFR Part 91. The certified flight instructor, and student pilot both sustained serious injuries. Visual meteorological conditions prevailed and no flight plan was filed for the local flight. In a written statement, the certified flight instructor reported that the airplane was on final approach to runway 07. Shortly before touchdown, with the flight instructor flying the airplane, the airplane encountered a downdraft and subsequently collided with a dump truck traveling southbound on an adjacent county road that runs perpendicular to the runway. After colliding with the truck, the airplane impacted the runway and slid to a stop. The airplane sustained substantial damage to the fuselage. Both main gear legs and the nose wheel strut separated from their respective attach points when the airplane collided with the truck. According to the United States Government Airport/Facility Director, runway 07 at Chehalem Airpark is 2,285 feet in length, with a 300-foot displaced threshold. The displaced threshold is approximately 318 feet from the center of the county road. ## Aircraft - Registration: [N8315L](https://openairdocs.org/deregistered/N8315L-2012-08-21), registration cancelled 2012-08-21, S/N 17256515, built 1968 (OpenAirDocs) - Reported make and model: Cessna 172 - Registry model: [Cessna 172I](https://openairdocs.org/model/cessna-172i) (registry code 2072426) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17256515 - Airframe hours: 4650 - Engines: Lycoming O-360 180 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Blue Max Flying Club, Inc. - Airworthiness certificate: Standard, Normal - Last inspection: Annual, October 28, 1999 - Departed: 17S - Airport: 17S, Chehalem, runway 7, 2,285 × 40 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 62; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: right; flight hours: 842 total, 122 in this make and model, 657 as pilot in command, 49 in the last 90 days, 15 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 20° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 70 °F, dew point 39 °F - Altimeter: 30.00 inHg - Observed at: MMV, 7 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 20000923015539A](https://openairdocs.org/incident/20000923015539A), Sep 23, 2000: Cessna 172I, Newberg, OR, No damage. (-23) CFI was giving instructions in traffic pattern operations and landings at Chehalem airpark, Newberg, Oregon. Approach was set up for rwy 7, a 2285 foot… 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.