NTSB Identification: CEN10FA125
14 CFR Part 91: General Aviation
Accident occurred Sunday, February 21, 2010 in Belleville, IL
Probable Cause Approval Date: 06/27/2011
Aircraft: PIPER PA 46-350P, registration: N350WF
Injuries: 2 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

The airplane was on an instrument flight in night instrument meteorological conditions approaching the destination airport. The pilot contacted the approach control facility by radio and was subsequently cleared for an instrument landing system (ILS) approach to the destination airport. During the approach, the air traffic approach controller advised the pilot twice that the airplane was to the right of the approach course. The controller suggested a left turn of 5 to 7 degrees to the pilot. Once the airplane was back on the inbound course, the approach controller instructed the pilot to contact a tower controller. The pilot never contacted the tower controller, but later reestablished contact with the approach controller, who provided radar vectors for a second attempt at the ILS approach. During the second approach, the controller again advised the pilot that the airplane was to the right of the approach course and provided the pilot a low altitude alert. The airplane then started a climb and a turn back toward the inbound course. The controller advised the pilot that the airplane would intercept the inbound course at the locator outer marker (LOM) for the approach and asked if the pilot would like to abort the approach and try again. The pilot declined and responded that he would continue the approach. No further transmissions were received from the pilot. The airplane impacted a building about 0.4 nautical miles from the LOM. The building and airplane were almost completely consumed by the postimpact fire. A postaccident examination revealed no evidence of mechanical malfunction or failure. The airplane's turning ground track and the challenging visibility conditions were conducive to the onset of pilot spatial disorientation.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The pilot’s spatial disorientation and subsequent failure to maintain airplane control during the instrument approach.

Full narrative available

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