# NTSB SEA01LA086: Cessna U206, N29147, Yamhill, OR, May 6, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: May 6, 2001, 13:00 local (20:00 UTC) - Place: Yamhill, OR - Coordinates: 45.360244, -123.239723 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=45.3602&lon=-123.2397&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report July 30, 2001 - Report: Approved by Office Director - Parties: Portland FSDO - NTSB case key (mKey): 52220 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA01LA086 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/52220/pdf - Page: https://openairdocs.org/ntsb/SEA01LA086 ## Probable cause the pilot's failure to adequately compensate for gusty tailwind conditions, resulting in an excessive rate of descent at touchdown. Factors include gusty tailwinds during the landing sequence. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Hard landing, landing - flare/touchdown - compensation for wind conditions - inadequate, pilot in command (cause) - descent - excessive, pilot in command (cause) - weather condition - gusts (contributing factor) - weather condition - tailwind (contributing factor) ## Analysis While landing at an airstrip where terrain conditions dictated the use of only one runway, the pilot was landing with what he thought was a light tailwind. Just as he was about to start his landing flare from about 10 feet above the ground, the aircraft encountered a tailwind gust. The aircraft immediately started to drop toward the runway surface, and before the pilot could apply power to arrest the rate of descent, the aircraft impacted the runway surface with sufficient force to cause substantial damage. ## Factual narrative On May 6, 2001, approximately 1300 Pacific daylight time, a Cessna U206, N29147, landed hard at Flying M Airstrip, Yamhill, Oregon. The private pilot and his passenger were not injured, but the aircraft, which was owned and operated by the pilot, sustained substantial damage. The 14 CFR Part 91 personal pleasure flight, which departed Aurora State Airport about 10 minutes earlier, was being operated in visual meteorological conditions. No flight plan had been filed. According to the pilot, who was landing at an airstrip where terrain conditions dictate landing only on runway 25, there was what appeared to be a light tailwind blowing while he was on final to the turf runway. Reportedly, just about the time he was going to start his flare from about 10 feet above the ground, the aircraft encountered a tailwind gust of about 15 mph. The aircraft immediately began to sink, and before the pilot could add power to arrest the sink rate, the aircraft impacted the runway surface. The force of the impact was such that the nose gear fork sheared, allowing the nose gear strut to dig into the terrain. The forces exerted on the aircraft during the ensuing deceleration resulted in substantial damage. A note in the Air Guide Publications Flight Guide states that the airstrip is in a canyon with mountains surrounding it, and that winds may be variable. An additional note states "Tailwind operations not recommended." ## Aircraft - Registration: [N29147](https://openairdocs.org/deregistered/N29147-2018-04-11), registration cancelled 2018-04-11, S/N U206-1117 (OpenAirDocs) - Reported make and model: Cessna U206 - Registry model: [Cessna U206C](https://openairdocs.org/model/cessna-u206c) (registry code 2073332) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: U2061117 - Airframe hours: 3923 - Engines: Continental IO-520-F4QB 300 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Morris W. Nagl - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 26, 2000, 6 hours before - Departed: UAO, Aurora Airport, OR - Destination: Yamhill, OR - Airport: OR05, Flying M Ranch, runway 25, 2,130 × 40 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 76; injuries: none; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; last flight review August 30, 2000; seat: left; flight hours: 2,000 total, 400 in this make and model, 6 in the last 90 days, 6 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 90° at 5 knots, gusting 15 - Visibility: 20 statute miles - Lowest ceiling: none - Temperature: 61 °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 20010506010069A](https://openairdocs.org/incident/20010506010069A), May 6, 2001: Cessna U206, Yamhill, OR, No damage. (.19)On may 6, 2001, approximately 1300 pacific daylight time, the nose gear of a Cessna U206, N29147, collapsed during a hard landing at flying m airstrip,… ## Other investigations on N29147 (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 FTW78FRG50](https://openairdocs.org/ntsb/FTW78FRG50), Jun 11, 1978: Cessna U206C (N29147), Austin, TX, substantial damage - [NTSB MIA73FLG48](https://openairdocs.org/ntsb/MIA73FLG48), Jun 1, 1973: Cessna U206C (N29147), Little River, SC, 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.