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NTSB investigation record

CEN09FA083

Completed

Cessna 206H· N6053B

Date
December 6, 2008
Location
Kalkaska, MI
Conditions
IMC
Record
Published September 25, 2020

Primary finding

Probable cause

The pilot's failure to maintain clearance from trees and terrain during the instrument-flight-rules flight. Contributing to the accident was the pilot's failure to comply with instrument flight procedures and his lack of recent instrument flight experience.

Investigator assessment

Analysis narrative

The instrument-rated pilot departed on a cross-country flight from Minnesota to New York. While en route and in visual flight rules conditions above the clouds, the pilot elected to divert to a nearby airport due to adverse weather conditions. The pilot received an instrument-flight-rules clearance, radar vectors, and instrument approach information from air traffic control (ATC). However, he was unable to complete the approach due to trouble receiving the localizer signal for the instrument landing system (ILS) approach. The pilot requested that he be able to continue with only glideslope information and the controller informed the pilot that his current altitude (2,700 feet mean sea level) was the minimum altitude that ATC could authorize. The pilot informed ATC that he was going to descend and ATC reported that radar contact was lost. Over the next approximately 4 minutes, the controller instructed the pilot several times to climb. The pilot did not comply with these requests and radar data indicated that the airplane circled several times about 1.5 miles east of the airport during this time period. After several requests the pilot agreed to climb and accepted vectors for another approach. Transcripts indicated that the pilot was able to successfully tune his navigation equipment for the global-positioning-system approach to the airport. While the airplane was being vectored for another approach the controller instructed the pilot to climb and the pilot responded "I'm off," which was the last transmission received from the accident airplane. Radar data showed that the airplane remained airborne and maneuvered east of the airport for 36 minutes after the last radio transmission from the pilot. Witnesses on the ground reported seeing the airplane circling before it struck trees, the ground, and a residence. The last radar contact was within 0.1 miles of the accident location. Review of the pilot's flight records showed that he had accumulated about 8 hours of actual instrument flight time since he received an instrument rating about 10 months prior to the accident; however, the records do not indicate that the pilot had met the recent flight experience required by regulations to act as pilot in command in instrument flight conditions. The autopsy on the pilot revealed evidence of multiple previous and one very recent, possibly ongoing, heart attack. There were no indications that the pilot had been symptomatic with or was aware of his heart disease. The circumstances of the accident do not suggest incapacitation, and the pilot did not indicate any symptoms in discussions with air traffic controllers. It could not be determined whether distraction or impairment due to the pilot’s heart disease may have played a role in this accident.

Source record

Factual narrative

HISTORY OF FLIGHT On December 6, 2008, about 1513 eastern standard time (all times est unless noted), a Cessna 206H, N6053B, piloted by a private pilot, was destroyed when it impacted trees, a mobile home, and terrain near Traverse City, Michigan. The Title 14 Code of Federal Regulations Part 91 personal flight was operating in instrument meteorological conditions (IMC) and was on an instrument flight rules (IFR) flight plan. The pilot, who was the sole occupant of the airplane was fatally injured. The airplane departed from the Wipline Seaplane Base (09Y) near Inver Grove Heights, Minnesota at 1115. The intended destination was the Floyd Bennett Memorial Airport (GFL), Glens Falls, New York. Radar track data and air traffic control (ATC) communication transcripts were obtained for the accident flight. This data showed that the airplane departed from 09Y at 1115. The airplane proceeded about 25 nautical miles northeast before turning to an east bound heading. The airplane remained on an easterly heading until 1357 when a left turn to a westerly heading was executed. This turn corresponded with a radio transmission from the pilot which indicated his intention to "turn around and head back" due to adverse weather encountered. Up to this time the airplane had been operated in visual meteorological conditions above the clouds (VFR on top). At 1359, the pilot reported that he was accumulating ice and elected to divert to TVC. ATC data indicated that the pilot was given an IFR clearance and vectors for the ILS runway 28 approach to TVC. The pilot stated that he did not have approach information and ATC relayed the approach frequencies to the pilot. During the approach, the pilot informed ATC that he was having difficulty receiving the localizer portion of the approach. The pilot confirmed the approach frequencies and stated that he was receiving glide slope information but was still not receiving the localizer. During this approach the pilot stated that he was navigating to the outer marker using his global positioning system (GPS) receiver. The airplane continued toward TVC and the ATC controller confirmed that the ILS runway 28 approach had been in use all morning with no reported difficulties. At 1424, the pilot inquired with ATC if he could follow the glide slope (at this time the pilot was still not receiving the localizer). The controller informed the pilot that his current altitude (2,700 feet msl) was the minimum altitude that ATC could authorize. At 1427, the pilot informed ATC that he was going to descend and ATC reported that radar contact was lost. Over the next approximately 4 minutes, the controller instructed the pilot several times to climb. The pilot refused to comply with these requests and radar data indicated that the airplane circled several times about 1.5 miles east of the airport during this time period. The airplane's altitude at this time was about 1,300 feet. At 1431, the pilot agreed to climb and accepted vectors for another approach. At 1433, the controller asked the pilot if he was able to accept the TVC runway 28 GPS approach. The pilot later told the controller, “I appear to have the g p s in there if you want to try it I’d love to try it.” The pilot continued accepting radar vectors until 1436:47, when the controller instructed the pilot to climb to 3,500 feet msl. At 1437:06, the pilot responded "I'm off" which was the last transmission received from the accident airplane. Radar data showed that the airplane remained airborne and maneuvered east of TVC for 36 minutes after the last radio transmission from the pilot. The last radar contact occurred at 1513:27 and the recorded position was within 0.1 miles of the accident location. Witnesses on the ground reported that the airplane circled at a low altitude in the vicinity of the accident site. The two witnesses reported seeing the airplane's wing dip and then it struck trees. The airplane subsequently struck the residence where the witnesses had been shoveling snow. PERSONNEL INFORMATION The pilot, age 47, held a private pilot certificate with single engine land, single engine sea, and instrument airplane ratings. His most recent third class medical certificate was issued on August 26, 2006. The medical certificate listed the limitation that the pilot "Must have available glasses for near vision." An entry in the pilot's flight logbook indicated that as of September 19, 2008, he had accumulated 1,801.8 total flight hours, 906.8 hours in Cessna 206H airplanes, 307.9 hours in amphibious airplanes, and 51.5 hours of instrument flight time. The entry did not indicate if the instrument flight hours were in actual IMC or simulated conditions. The pilot received his instrument airplane rating on February 14, 2008. Log entries subsequent to this date indicate that the pilot had accumulated 8.1 hours of instrument flight time in actual IMC since receiving his instrument airplane rating. No entries were found for instrument flights within the preceding 6 months. No entry was found indicating that the pilot had received an instrument proficiency check within the 6 months prior to the accident. AIRCRAFT INFORMATION The airplane was a Cessna 206H, serial number 20608272. It was a single engine, high wing, monoplane. The airplane was powered by a Lycoming IO-540-AC1A5 reciprocating engine, serial number L-31373-48E. The engine was rated to produce 300 horsepower. According to aircraft records, the following additional equipment was installed: Knots 2U aileron and flap gap seals, were installed November 13, 2006, in accordance with Supplemental Type Certificate (STC) number SA2382NM; A Flint Aero auxiliary fuel tank kit was installed November 13, 2006, in accordance with STC number SA4366WE; Wipline model 3405A amphibious floats were installed December 15, 2006, in accordance with Supplemental Type Certificate number SA01185CH. A review of maintenance records showed that the airframe and engine had undergone an annual inspection on October 10, 2008. The total hours of operation of the airframe and engine were both 752.8 hours as of the annual inspection. The airplane was equipped with the Garmin G1000 integrated avionics suite. The navigation capabilities of the G1000 system included en route and approach certified GPS navigation and VHF navigation. The avionics system included a database which, among other information, included airport information, navaid information, airspace information and instrument approach, departure and fix information. METEOROLOGICAL INFORMATION At 1439, the recorded weather conditions at TVC were: Wind 290 degrees at 8 knots; visibility 1 sm; light snow; few clouds at 500 feet, overcast clouds at 1,100 feet; temperature -4 degrees C; dew point -5 degrees C; altimeter setting 29.57 in-hg. At 1447, the recorded weather conditions at TVC were: Wind 300 degrees at 10 knots; visibility 3/4 sm; light snow; few clouds at 500 feet, overcast clouds at 1,100 feet; temperature -3 degrees C; dew point -4 degrees C; altimeter setting 29.57 in-hg. At 1453, the recorded weather conditions at TVC were: Wind 310 degrees at 11 knots; visibility 3/4 sm; light snow; few clouds at 500 feet, overcast clouds at 1,100 feet; temperature -3 degrees C; dew point -4 degrees C; altimeter setting 29.58 in-hg. At 1512, the recorded weather conditions at TVC were: Wind 340 degrees at 17 knots gusting to 24 knots; visibility 1/2 sm; snow and blowing snow; vertical visibility 500 feet; temperature -3 degrees C; dew point -5 degrees C; altimeter setting 29.59 in-hg. COMMUNICATIONS On December 5, 2008, at 1856, a caller contacted the Princeton Automated Flight Service Station (FCF/AFSS) and obtained a weather briefing for a visual flight rules (VFR) flight from the South St. Paul Municipal Airport, South St. Paul, Minnesota (SGS) to GFL. On December 6, 2008, at 0639, a caller contacted the FCF/AFSS and obtained a weath

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