# NTSB CHI06LA212: Cessna R172K, N736VM, Grand Rapids, MN, July 9, 2006 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 9, 2006, 17:30 local (22:30 UTC) - Place: Grand Rapids, MN - Coordinates: 47.211112, -93.509719 - Nearby events: https://openairdocs.org/map.md?lat=47.2111&lon=-93.5097&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report April 25, 2007 - Report: Approved by Office Director - Parties: FAA - NTSB case key (mKey): 64350 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI06LA212 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/64350/pdf - Page: https://openairdocs.org/ntsb/CHI06LA212 ## Probable cause The pilot's failure to maintain control of the airplane during the landing. A factor associated with the accident was the gusty tailwind that prevailed. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Dragged wing,rotor,pod,float or tail/skid, landing - flare/touchdown - weather condition - gusts (contributing factor) - weather condition - tailwind (contributing factor) - aircraft control - not maintained, pilot in command (cause) - terrain condition - water ## Analysis The float equipped airplane collided with the water and sank while returning to land on a lake that was just used for takeoff. The pilot reported he had trouble gaining altitude during the takeoff and that the surrounding terrain and trees were high. He decided to turn around and land back on the lake. The pilot stated that when he was about 20 feet above the water he pulled off the power too soon and the wind pushed the right wing down. The right float contacted the water first. The airplane then bounced and touched down again in a yaw attitude. The pilot reported the aluminum float attachment brackets on the right float broke and the airplane fell to the right resulting in wing damage. The pilot reported the local winds were from 210 degrees at 23 knots, gusting to 26 knots. ## Factual narrative On July 9, 2006, at 1730 central daylight time, a float equipped Cessna R172K, N736VM, collided with the water and came to rest inverted while turning back to land on the lake that he just departed from in Grand Rapids, Minnesota. The pilot and passenger were not injured. The airplane was substantially damaged. The 14 Code of Federal Regulations Part 91 personal flight was operating in visual meteorological conditions without a flight plan. The airplane was departing at the time of the accident. The pilot reported he had trouble gaining altitude during the takeoff and that the surrounding terrain and trees were high. He decided to make a turn and land back on the lake. The pilot reported the wind kept raising the right wing during the turn. He stated that when he was about 20 feet above the water he pulled off the power too soon and the wind pushed the right wing down. The right float contacted the water first. The airplane then bounced and touched down again in a yaw attitude. The pilot reported the aluminum float attachment brackets on the right float broke and the airplane fell to the right resulting in wing damage. The pilot reported the local winds were from 210 degrees at 23 knots, gusting to 26 knots. ## Aircraft - Registration: [N736VM](https://openairdocs.org/deregistered/N736VM-2013-05-07), registration cancelled 2013-05-07, S/N R1722822, built 1977 (OpenAirDocs) - Reported make and model: Cessna R172K - Registry model: [Cessna R172K](https://openairdocs.org/model/cessna-r172k) (registry code 2072431) (OpenAirDocs) - Registry engine: [Continental IO-360 series](https://openairdocs.org/engine/continental-io-360-series) (registry code 17025, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: R1722822 - Airframe hours: 2319 - Engines: Continental IO-360 210 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Russell S. Sampson - Registered owner: Maverick Aviation - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 1, 2005 - Departed: Grand Rapids, MN - Destination: Grand Rapids, MN ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 47; injuries: none; private; airplane ratings: single-engine sea; medical: class 3; last flight review July 1, 2005; seat: left; flight hours: 582 total, 439 in this make and model, 439 as pilot in command, 53 in the last 90 days, 18 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 210° at 23 knots, gusting 26 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 86 °F - Altimeter: 30.00 inHg 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.