# NTSB ANC05LA086: Cessna 180, N4533B, Anchorage, AK, May 30, 2005 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: May 29, 2005, 16:50 local (May 30, 2005, 00:50 UTC) - Place: Anchorage, AK - Coordinates: 61.213611, -149.844451 - Nearby events: https://openairdocs.org/map.md?lat=61.2136&lon=-149.8445&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report January 31, 2006 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Anchorage, FSDO-03 - NTSB case key (mKey): 61706 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC05LA086 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/61706/pdf - Page: https://openairdocs.org/ntsb/ANC05LA086 ## Probable cause The pilot's inadequate compensation for gusting wind conditions during landing, which resulted in a ground-loop, and structural damage to the airplane. Factors associated with the accident were a ground-loop, and wind gusts. ## 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 - gusts (contributing factor) - compensation for wind conditions - inadequate, pilot in command (cause) - ground loop/swerve - inadvertent, pilot in command (contributing factor) - On ground/water encounter with terrain/water, landing - roll - terrain condition - runway ## Analysis While conducting a 14 CFR Part 91 personal flight, the commercial certificated pilot said the air traffic control tower cleared him to land on runway 24, and advised the wind direction was 120 degrees at 5 knots. He said he used full flaps, and during the landing roll, the airplane ground-looped to the left. The pilot said he felt the wind was stronger than reported. No special weather observation was taken at the time of the accident, but the regular observation, taken at 1653, reported the wind as 190 at 8 knots, with gusts to 15 knots. According to the pilot, there were no known mechanical anomalies with the airplane prior to the accident. The airplane's right wing and aileron received structural damage during the ground-loop. In a written report to the NTSB dated July 8, the pilot indicated that he failed to use the proper crosswind landing techniques. ## Factual narrative On May 29, 2005, about 1650 Alaska daylight time, a Cessna 180 airplane, N4533B, sustained substantial damage when it ground-looped during the landing roll at Merrill Field, Anchorage, Alaska. The airplane was being operated by the pilot as a visual flight rules (VFR) local personal flight under Title 14, CFR Part 91, when the accident occurred. The solo commercial certificated pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on June 1, the pilot said he was cleared to land by the tower on runway 24. According to a tower controller, who reviewed the control tower audio tape, the on-duty controller advised the pilot "cleared to land runway 24, wind 120 at 5." The pilot said he used full flaps, and that he felt the wind speed was higher and more of a crosswind than reported by the tower. No special weather observation was taken at the time of the accident, but the regular observation at 1553 reported winds 270 at 4 knots, and the regular observation at 1653 reported winds 190 at 8 knots, with gusts to 15 knots. The pilot said the airplane ground-looped to the left during the landing roll, and sustained structural damage to the right wing and aileron. In a written report to the NTSB dated July 8, 2005, the pilot indicated that he failed to use the proper crosswind techniques while landing. ## Aircraft - Registration: [N4533B](https://openairdocs.org/aircraft/N4533B), registered now, S/N 31432, built 1955 (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: 31432 - Airframe hours: 2785 - Engines: Continental O-470-R 230 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: William B. Hastie - Airworthiness certificate: Standard, Normal - Last inspection: Annual, August 1, 2004 - Departed: PAMR, Anchorage, AK - Airport: MRI, Merill Field, runway 24, 4,000 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 42; injuries: none; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, without waivers/limitations; last flight review October 1, 2004; seat: left; flight hours: 1,842 total, 17 in this make and model, 16,339 as pilot in command, 24 in the last 90 days, 9 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 190° at 8 knots, gusting 15 - Visibility: 10 statute miles - Lowest ceiling: 13,000 ft broken - Temperature: 59 °F, dew point 37 °F - Altimeter: 29.87 inHg - Observed at: PAMR ## 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 20050529009109A](https://openairdocs.org/incident/20050529009109A), May 29, 2005: Cessna 180, Anchorage, AK, Minor damage. (-23) According to the pilot, he lost control of the aircraft while landing in a gusty wind condition. 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.