# NTSB ANC08CA110: Cessna U206G, N4773U, Igiugig, AK, August 20, 2008 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: August 19, 2008, 18:15 local (Aug 20, 2008, 02:15 UTC) - Place: Igiugig, AK - Coordinates: 59.122222, -155.40306 - Nearby events: https://openairdocs.org/map.md?lat=59.1222&lon=-155.4031&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490) - Highest injury: No injuries - Injuries: 5 uninjured - Status: Completed, report September 29, 2008 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Anchorage FSDO-03 - NTSB case key (mKey): 68945 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC08CA110 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/68945/pdf - Page: https://openairdocs.org/ntsb/ANC08CA110 ## Probable cause The pilot's misjudged speed and distance during takeoff, which resulted in the float-equipped airplane colliding with a bank. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: climb rate](https://openairdocs.org/ntsb-findings/01062035): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cessna U206G, 1 case](https://openairdocs.org/ntsb-findings/01062035/cases.md?model=2073356), [All aircraft, 265 cases](https://openairdocs.org/ntsb-findings/01062035/cases.md) - [Terrain: water](https://openairdocs.org/ntsb-findings/03021020): Environmental issues › Physical environment · Not specified; cases with it: [Cessna U206G, 1 case](https://openairdocs.org/ntsb-findings/03021020/cases.md?model=2073356), [All aircraft, 97 cases](https://openairdocs.org/ntsb-findings/03021020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Takeoff: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490) (defining event); cases with it: [Cessna U206G, 7 cases](https://openairdocs.org/ntsb-events/490/sequence.md?model=2073356), [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) ## Analysis The commercial pilot was shuttling fisherman between lakes in the float-equipped airplane under Title 14, CFR Part 135, when the accident occurred. The pilot reported that he planned to shuttle two passengers at a time, but felt the wind was sufficient to take four. He said that during the takeoff roll the wind went calm, and that the glassy water extended his run farther than expected. The pilot said he felt there was not enough lake left to stop the airplane before colliding with the bank if he aborted the takeoff, and decided to continue the takeoff. He said the airplane lifted off the lake about 20 inches, and collided with the bank. The pilot said there were no known mechanical anomalies with the airplane prior to the accident, and that the airplane sustained fuselage damage during the accident. ## Factual narrative The commercial pilot was shuttling fisherman between lakes in the float-equipped airplane under Title 14, CFR Part 135, when the accident occurred. The pilot reported that he planned to shuttle two passengers at a time, but felt the wind was sufficient to take four. He said that during the takeoff roll the wind went calm, and that the glassy water extended his run farther than expected. The pilot said he felt there was not enough lake left to stop the airplane before colliding with the bank if he aborted the takeoff, and decided to continue the takeoff. He said the airplane lifted off the lake about 20 inches, and collided with the bank. The pilot said there were no known mechanical anomalies with the airplane prior to the accident, and that the airplane sustained fuselage damage during the accident. ## Aircraft - Registration: [N4773U](https://openairdocs.org/aircraft/N4773U), registered now, S/N U20605094, built 1979 (OpenAirDocs) - Reported make and model: Cessna U206G - Registry model: [Cessna U206G](https://openairdocs.org/model/cessna-u206g) (registry code 2073356) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 05094 - Airframe hours: 7187 - Engines: Continental IO-520-F-9 300 horsepower reciprocating - Damage: Substantial damage - Flight: Part 135 - Registered owner: Hartley Inc. - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, July 1, 2008 - Departed: Igiugig, AK - Destination: AKN, King Salmon, AK - Flight plan: Company VFR ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 39; injuries: none; commercial; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, without waivers/limitations; last flight review June 1, 2008; seat: left; flight hours: 4,100 total, 350 in this make and model, 332 in the last 90 days, 150 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 0 knots - Visibility: 20 statute miles - Lowest ceiling: 6,000 ft overcast - Temperature: 64 °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 20080819845399A](https://openairdocs.org/incident/20080819845399A), Aug 19, 2008: Cessna U206G, King Salmon, AK, Substantial damage. (-23) A floatplane CE-206 on a 2500 ft lake, with the winds variable to 5 to 10 knots crashed on takeoff. The PIC stated he had a quartering head wind and that… ## Other investigations on N4773U (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 ANC07CA089](https://openairdocs.org/ntsb/ANC07CA089), Aug 18, 2007: Cessna U206G (N4773U), Iliamna, AK, substantial damage. Probable cause: The pilot's inadequate compensation for gusty wind conditions, which resulted in the float-equipped airplane's right wing striking the bottom of the shallow lake, while taxiing for takeoff. A factor… 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.