# NTSB SEA01LA114: Champion 7EC, N7415B, Mattawa, WA, June 8, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 7, 2001, 17:37 local (Jun 8, 2001, 00:37 UTC) - Place: Mattawa, WA - Coordinates: 46.800548, -119.149841 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=46.8005&lon=-119.1498&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report February 20, 2002 - Report: Approved by Office Director - Parties: FAA Flight Standards District Office - NTSB case key (mKey): 52445 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA01LA114 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/52445/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=52445 - Page: https://openairdocs.org/ntsb/SEA01LA114 ## Probable cause The pilot's failure to maintain directional control of the aircraft during the landing roll. Contributing factors were the gusty crosswind condition and the high vegetation (sage brush) which the aircraft rolled into before nosing over. ## 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 - weather condition - crosswind (contributing factor) - directional control - not maintained, pilot in command (cause) - weather condition - gusts (contributing factor) - Nose over, landing - roll - airport facilities,runway/landing area condition - high vegetation (contributing factor) ## Analysis During the landing roll into a left quartering headwind the pilot encountered a sudden gust from the left. The conventionally geared aircraft drifted right off the runway and the pilot added power attempting to execute a go around. The aircraft rolled further off the right side of the runway, encountered sage brush and then nosed over. The wind conditions at the airport were reported by the pilot. ## Factual narrative On June 7, 2001, approximately 1737 Pacific daylight time, a Champion 7EC, N7415B, registered to and being flown by a private pilot, was substantially damaged during a loss of control and subsequent nose over on landing roll at the Desert Aire Airport, Mattawa, Washington. The pilot and passenger were uninjured. Visual meteorological conditions existed and no flight plan had been filed. The flight, which was personal, was operated under 14CFR91, and originated from the Yakima, Washington, approximately 1645. The pilot reported that during the landing roll on runway 28 into a quartering left headwind he encountered a sudden gust from the left, which lifted the aircraft's left wing. The aircraft drifted right onto the runway shoulder and the pilot applied power to go around. The aircraft rolled off the right side of the runway during which the main wheels encountered sagebrush and the aircraft then nosed over. The pilot reported that there were no mechanical problems with the aircraft during the event. Winds at Yakima at 1756 (26 nautical miles southwest) were reported as variable at three knots, although gusts were reported three hours earlier. Winds at Moses Lake at 1752 (41 nautical miles north-northeast) were reported from 210 degrees magnetic at seven knots. ## Aircraft - Registration: [N7415B](https://openairdocs.org/deregistered/N7415B-2013-07-08), registration cancelled 2013-07-08, S/N 7EC-449, built 1956 (OpenAirDocs) - Reported make and model: Champion 7EC - Registry model: [Champion 7EC](https://openairdocs.org/model/champion-7ec) (registry code 21101NM) (OpenAirDocs) - Registry engine: [Continental C90 series](https://openairdocs.org/engine/continental-c90-series) (registry code 17009, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 7EC-449 - Airframe hours: 2661 - Engines: Continental C-90 90 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Riedinger, James A. - Airworthiness certificate: Standard, Normal - Last inspection: Annual, October 28, 2000, 70 hours before - Departed: YKM, Yakima, WA - Destination: 4WA9, Mattawa, WA - Airport: 4WA9, Desert Aire Airport, runway 28, 3,666 × 36 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 64; injuries: none; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; last flight review February 16, 2001; seat: front; flight hours: 214 total, 43 in this make and model, 160 as pilot in command, 43 in the last 90 days, 21 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 3 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 79 °F, dew point 39 °F - Altimeter: 30.01 inHg - Observed at: YKM, 26 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 20010607011709A](https://openairdocs.org/incident/20010607011709A), Jun 7, 2001: Bbavia 7EC, Mattawa, WA, No damage. (-23)During landing flare on runway 28 at Desert Aire, airport, crosswind caused the left winf to rise. Pilot attempted a go around by adding full power.… ## Other investigations on N7415B (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 WPR10CA447](https://openairdocs.org/ntsb/WPR10CA447), Sep 3, 2010: Champion 7EC (N7415B), Aurora, OR, substantial damage. Probable cause: The pilot’s failure to maintain directional control during an attempted go around after landing, resulting in a runway excursion. ## Docket (2 files) The files NTSB released with the investigation on January 30, 2002, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=52445. 397 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 329 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40473148&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Supplement S - Aircraft Occupant and Injured Ground Personnel (item 2, .PDF, 68 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40473149&FileExtension=.PDF&FileName=Supplement%20S%20-%20Aircraft%20Occupant%20and%20Injured%20Ground%20Personnel-Master.PDF 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.