Wednesday, December 7, 2016

Piper PA-31T Cheyenne, P51D Mustang LLC, N909PW: Accident occurred December 05, 2016 at Missoula International Airport (KMSO), Missoula County , Montana

The National Transportation Safety Board did not travel to the scene of this accident. 

Aviation Accident Preliminary Report - National Transportation Safety Board: 


FAA Flight Standards District Office: FAA Helena FSDO-05

NTSB Identification: WPR17LA031
14 CFR Part 91: General Aviation
Accident occurred Monday, December 05, 2016 in Missoula, MT
Aircraft: PIPER PA 31T, registration: N909PW
Injuries: 2 Uninjured.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

On December 5, 2016, about 1300 mountain standard time, the pilot of a Piper PA-31T, N909PW, made an unscheduled landing at the Missoula International Airport (MSO), Missoula, Montana, after the left windshield fractured and separated from the airplane. The private pilot and passenger were not injured. The airplane was registered to and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Instrument meteorological conditions prevailed and the flight was operated on an instrument rules flight plan. The flight originated from Kalispell City Airport (S27), Kalispell, Montana at 1215.

The pilot reported that he was in cruise flight at 23,000 feet when the left windshield fractured and departed the airplane. He immediately performed an emergency landing to the nearest airport, and landed without further incident. 

The postaccident examination of the windshield revealed that the periphery of the windshield remained attached to the airframe; however, a majority of it separated and has not been located.

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