# NTSB CHI01LA225: Cessna U206G, N756DM, Freemont, MI, July 20, 2001 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: July 20, 2001, 15:15 local (19:15 UTC) - Place: Freemont, MI - Coordinates: 43.459907, -85.950103 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=43.4599&lon=-85.9501&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 2 minor - Status: Completed, report June 3, 2002 - Report: Approved by Office Director - Parties: FEDERAL AVIATION ADMINISTRATION - NTSB case key (mKey): 52823 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI01LA225 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/52823/pdf - Page: https://openairdocs.org/ntsb/CHI01LA225 ## Probable cause The broken throttle cable during cruise flight and the pilot's inadequate flare during the forced landing attempt. Factors relating to this accident were the low airspeed during the forced landing attempt and the short, corn stubble field. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power, cruise - throttle/power lever,cable - separation (cause) - Forced landing, emergency landing - Nose over, emergency landing - flare - inadequate, pilot in command (cause) - terrain condition - short runway/landing area (contributing factor) - airspeed - low, pilot in command (contributing factor) - terrain condition - crop (contributing factor) ## Analysis The pilot and an observer were performing fire patrol near Freemont, Michigan. They were proceeding east at approximately 2,500 feet mean sea level when the pilot noticed the manifold pressure had dropped to approximately 30 inches of Mercury (Hg). The pilot said he moved the throttle in and out several times but the power did not change. The pilot executed a 180-degree turn toward the Freemont Airport. On completion of the turn, the pilot noticed the manifold pressure had dropped to 15 inches Hg. The pilot looked for a place to land. He said there was nothing in front of them but trees. The pilot then noticed a farm field beneath and to the left of him. He said he decided to put the airplane down in the field. The pilot said he left the wheels and the flaps up because he was "low, slow, and short". He said the farm field was a short one. The pilot said he tried to flare. They hit the ground hard. The pilot said he did not recall the airplane going over its nose and coming to rest on its back. An examination of the airplane's engine revealed the throttle cable broken at the linkage to the throttle box lever arm. No other anomalies were found with the airplane. ## Factual narrative On July 20, 2001, at 1515 eastern daylight time, a Cessna U206G amphibian, N756DM, operated by Scenic Seaplanes, Incorporated and piloted by a commercial pilot, sustained substantial damage when it nosed over in a field 5 miles east of Freemont, Michigan, during an emergency landing. Prior to the accident, the airplane's engine lost partial power during cruise flight. Visual meteorological conditions prevailed at the time of the accident. The aerial observation flight was contracted by the United States Forest Service to perform fire patrol under the provisions of 14 CFR Part 135. A company VFR flight plan was on file. The pilot and passenger, a pilot-rated aerial observer, on board the airplane reported minor injuries. The local flight originated at Cadillac, Michigan, at 1400. In his written statement, the pilot said they were proceeding east at approximately 2,500 feet mean sea level when he noticed the manifold pressure had dropped to approximately 30 inches of Mercury (Hg). The pilot said he moved the throttle in and out several times but the power did not change. The pilot said he executed a 180-degree turn toward the Freemont Airport. On completion of the turn, the pilot noticed the manifold pressure had dropped to 15 inches Hg. The pilot looked for a place to land. He said there was nothing in front of them but trees. The pilot then noticed a farm field beneath and to the left of him. He said he decided to put the airplane down in the field. The pilot said he left the wheels and the flaps up because he was "low, slow, and short". He said the farm field was a short one. The pilot said he tried to flare. They hit the ground hard. The pilot said he did not recall the airplane going over its nose and coming to rest on its back. A Federal Aviation Administration inspector examined the airplane at the accident site. The airplane was found resting inverted in a corn stubble field. The left float and legs were bent to the right and resting against the right float. The landing wheels in the floats were in the "up" position. The engine mounts were twisted 35 degrees to the left. The cowling and forward fuselage was crushed aft and twisted left. One of the three propeller blades was bent aft. The other two blades were bent forward. The aft fuselage was bent and buckled. The empennage was broken off. Both wings showed numerous bends and buckles. Flight control continuity was confirmed. An examination of the engine showed the throttle cable broken at the linkage to the throttle box lever arm. No other anomalies were found with the airplane. ## Aircraft - Registration: [N756DM](https://openairdocs.org/deregistered/N756DM-2002-07-11), registration cancelled 2002-07-11, S/N U20604008, built 1977 (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: U206G04008 - Airframe hours: 3116 - Engines: Lycoming IO-550-F 300 horsepower reciprocating - Damage: Substantial damage - Flight: Part 135 - Registered owner: Scenic Seaplanes, Incorporated - Airworthiness certificate: Standard, Normal; Standard, Utility - Last inspection: 100 hour, July 17, 2001, 13 hours before - Departed: CAD, CADILLAC, MI - Flight plan: Company VFR ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 57; injuries: minor; medical: class 2, valid medical--w/ waivers/lim; last flight review May 1, 2001; seat: left; flight hours: 2,902 total, 804 in this make and model, 2,680 as pilot in command, 119 in the last 90 days, 62 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 280° at 9 knots - Visibility: 6 statute miles - Lowest ceiling: none - Temperature: 86 °F, dew point 72 °F - Altimeter: 30.03 inHg - Observed at: MKG, 21 nm away ## 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 20010720017919A](https://openairdocs.org/incident/20010720017919A), Jul 20, 2001: Cessna U206G, Fremont, MI, No damage. (.19) On July 20, 2001, at 1515 eastern daylight time, a Cessna U206G amphibian, N756DM, operated by a commercial pilot, sustained substantial damage when it… ## Other investigations on N756DM (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 CHI84LA029](https://openairdocs.org/ntsb/CHI84LA029), Oct 16, 1983: Cessna U206G (N756DM), South Fox Isl., MI, 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.