# NTSB SEA00LA049: Cessna 180, N4994A, Port Townsend, WA, March 11, 2000 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: March 10, 2000, 16:45 local (Mar 11, 2000, 00:45 UTC) - Place: Port Townsend, WA - Coordinates: 48.030727, -122.83953 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=48.0307&lon=-122.8395&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report December 4, 2000 - Report: Approved by Office Director - NTSB case key (mKey): 48763 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA00LA049 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/48763/pdf - Page: https://openairdocs.org/ntsb/SEA00LA049 ## Probable cause The pilot's failure to adequately compensate for changing wind conditions during the landing roll in a tailwheel-equipped aircraft. Factors include a variable, shifting wind that changed from a quartering headwind to a quartering tailwind just prior to the aircraft touching down on the runway, and soft, wet terrain just off the edge of the runway surface. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Gear collapsed, landing - roll - compensation for wind conditions - inadequate, pilot in command (cause) - weather condition - unfavorable wind (contributing factor) - weather condition - tailwind (contributing factor) - terrain condition - soft (contributing factor) - terrain condition - wet (contributing factor) ## Analysis The pilot, who was flying a tailwheel-equipped aircraft, thought he was landing into a quartering headwind. But according to pilot-rated witnesses, the wind shifted just prior to the aircraft crossing the threshold. After the aircraft touched down, the tailwind lifted its tail into the air, and the pilot began having difficulty maintaining directional control. During his attempts to remain aligned with the runway, the aircraft departed the side runway surface, and encountered soft, wet terrain. Soon after encountering the soft terrain, one of the main gear legs separated from the aircraft. ## Factual narrative On March 10, 2000, approximately 1645 Pacific standard time, a Cessna 180, N4994A, experienced a gear collapse during the landing roll at Jefferson County International Airport, Port Townsend, Washington. The private pilot, who was the sole occupant, was not injured, but the aircraft, which was owned in partnership by the pilot and another individual, sustained substantial damage. The 14 CFR Part 91 pleasure flight, which departed Snohomish County Airport, Everett, Washington, about 30 minutes earlier, was being operated in visual meteorological conditions. No flight plan had been filed, and there was no report of an ELT activation. According to the pilot, he was landing on runway 26 into what he thought was a quartering headwind. After the aircraft touched down in a three-point attitude, it bounced back into the air and started drifting to the right. When it touched down a second time, the wind, which was now blowing from behind the aircraft, lifted the tail in the air, resulting in the pilot having difficulty maintaining directional control. The aircraft continued to the right, and the pilot began to apply braking and corrective action in an attempt to maintain alignment with the runway. During his attempts to get the aircraft to track back toward the center of the runway, it departed the right side of the runway and encountered soft, wet terrain. After encountering the soft terrain, one of the aircraft's main gear separated from the airframe and one wing impacted the ground. Pilot-rated witnesses to the accident said that there were variable winds blowing at the time, and that the wind shifted from a quartering headwind to a quartering tailwind just prior to the aircraft crossing the threshold. ## Aircraft - Registration: [N4994A](https://openairdocs.org/aircraft/N4994A), registered now, S/N 32391, built 1956 (OpenAirDocs) - Reported make and model: Cessna 180 - Registry model: [Cessna 180](https://openairdocs.org/model/cessna-180) (registry code 2072602) (OpenAirDocs) - Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 32391 - Airframe hours: 6544 - Engines: Continental O-470-K 230 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Hill, Gary G & Kremer, Dale E - Airworthiness certificate: Standard, Utility; Standard, Normal - Last inspection: Annual, February 24, 2000, 3 hours before - Departed: PAE, EVERETT, WA - Destination: 059 - Airport: 059, Jefferson County Intl., runway 26, 3,000 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 63; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 1,163 total, 754 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 15 knots - Visibility: 10 statute miles - Lowest ceiling: 2,500 ft broken - Temperature: 50 °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 20000310011069A](https://openairdocs.org/incident/20000310011069A), Mar 10, 2000: Cessna 180, Port Townsend, WA, No damage. (-23) According to the pilot, he was landing on runway 27 with a quartering headwind. After the aicraft touched down in a three-point attitude, it bounced back… ## Other investigations on N4994A (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 FTW69F0167](https://openairdocs.org/ntsb/FTW69F0167), Sep 4, 1968: Cessna 180 (N4994A), El Paso, TX, 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.