# NTSB CHI01LA153: Rockwell 112TC, N4612W, Cambridge, MN, June 3, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 3, 2001, 14:50 local (19:50 UTC) - Place: Cambridge, MN - Coordinates: 45.559932, -93.219825 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=45.5599&lon=-93.2198&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report November 23, 2001 - Report: Approved by Office Director - Parties: FAA - NTSB case key (mKey): 52424 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI01LA153 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/52424/pdf - Page: https://openairdocs.org/ntsb/CHI01LA153 ## Probable cause The pilot's inadequate compensation for the wind conditions and the failure to maintain control of the airplane. A factor associated with the accident were the trees that the airplane contacted during the aborted landing. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - in flight, landing - flare/touchdown - compensation for wind conditions - inadequate, pilot in command (cause) - aircraft control - not maintained, pilot in command (cause) - In flight collision with object, landing - aborted - object - tree(s) (contributing factor) - In flight collision with terrain/water, descent - uncontrolled ## Analysis The airplane collided with the terrain following a loss of control during landing. The pilot reported that while en route he listened to the automated weather observing system (AWOS) for the destination airport and the winds were variable, but at a low speed. The pilot made an approach to land on runway 34. He reported that about 10-15 feet after main gear touchdown a gust of wind lifted the aircraft 8-10 feet above the runway. The airplane settled again and when it was about 5 feet above the ground a "sudden violent gust" lifted the airplane and it rolled between 120 and 150 degrees. The pilot reported he rolled the airplane level, advanced the throttle, raised the landing gear and removed 10 degrees of flaps. He reported that by this time the airplane was headed for a grove of trees off the west side of the runway. The airplane contacted the tops of the trees and settled to the ground. The pilot reported that at the time of the accident the winds were variable at 5 - 7 knots, gusting to 12 knots. A local weather observation taken at 1517, reported the winds were from 040 degrees at 8 knots. ## Factual narrative On June 3, 2001, at 1450 central daylight time, a Rockwell International 112TC, N4612W, collided with the terrain following a loss of control during an aborted landing at the Cambridge Municipal Airport (CBG), Cambridge, Minnesota. The landing was being made on runway 34 (4,000 feet by 75 feet, dry asphalt). The pilot was not injured and the airplane was substantially damaged. The 14 CFR Part 91 flight was operating in visual meteorological conditions without a flight plan. The flight originated from Blaine, Minnesota, at 1425 cdt. The pilot reported that while en route he listened to the automated weather observing system (AWOS) for CBG. He reported that he also had contact with another pilot who had just departed the airport. This pilot reported that the winds were variable, but at a low speed. The pilot made an approach to land on runway 34. He reported, "Approximately 10-15 feet after main gear touchdown a gust of wind lifted the aircraft 8-10 feet above the runway. When the aircraft was settling back to the runway it was about 5' above the ground a sudden violent gust lifted and rolled the aircraft 120 [degrees]-150 [degrees]." The pilot reported he rolled the airplane level, advanced the throttle, raised the landing gear and removed 10 [degrees] of flaps. He reported that by this time the airplane was headed for a grove of trees off the west side of the runway. The airplane contacted the tops of the trees. The pilot reported the airplane settled into the trees then "fell [the] last 15' to [the] ground landing flat on [the] belly." The pilot reported that at the time of the accident the winds were variable at 5 - 7 knots, gusting to 12 knots. A local weather observation taken at 1517, reported the winds were from 040 degrees at 8 knots. ## Aircraft - Registration: [N4612W](https://openairdocs.org/deregistered/N4612W-2017-02-22), registration cancelled 2017-02-22, S/N 13102, built 1976 (OpenAirDocs) - Reported make and model: Rockwell 112TC - Registry model: [Rockwell International 112TC](https://openairdocs.org/model/rockwell-international-112tc) (registry code 7630306) (OpenAirDocs) - Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 13102 - Engines: Lycoming IO-360 210 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Timothy W. Holmberg - Airworthiness certificate: Standard, Normal - Departed: ANE, Blaine, MN - Destination: CBG, Cambridge, MN - Airport: CBG, Cambridge Municipal, runway 34, 4,000 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 33; injuries: none; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; last flight review March 5, 2001; seat: left; flight hours: 124 total, 33 in this make and model, 77 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 40° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 66 °F, dew point 43 °F - Altimeter: 29.93 inHg - Observed at: CBG ## 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 20010603014629A](https://openairdocs.org/incident/20010603014629A), Jun 3, 2001: Gulstm 112TC, Cambridge, MN, No damage. (-23) Pilot initiated a go-around from landing to runway 34 kcbg after encountering gusty cross-wind. Pilot recovered aircraft from upset, but had drifted 280… 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.