The pilot of a C206T reported a loss of engine power due to an apparent turbocharger failure.

Attributes
ACN	1349478
Time
Date	201604
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.TRACON
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Cessna Stationair/Turbo Stationair 6
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Flight Plan	None
Component
Aircraft Component	Engine
Person 1
Function	Single Pilot Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Commercial Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 107 Flight Crew Total 1200 Flight Crew Type 160
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Experienced power fluctuations in flight +/- 100rpm. Noticed turbine inlet temperature gauge was reading zero and determined the cause to be a turbocharger failure. Made an immediate turn toward [nearby airport] and notified ATC of engine trouble and the need to land. Added full prop/throttle/mixture; selected both fuel tanks; and engaged the auxiliary fuel pump to ensure fuel was not the cause of the problem. Continued toward the airport and approximately 2 NM away from the approach end of runway 17 lost 1000 rpm at full power. [Notified ATC] at that point and entered a right base for 17. Turning base to final; engine seized and stopped completely. Landed safely and coasted off the active runway onto taxiway D. Mechanic's initial diagnosis is that the turbocharger seized and broke apart causing the engine to fail.

Original NASA ASRS Text

Title: The pilot of a C206T reported a loss of engine power due to an apparent turbocharger failure.

Narrative: Experienced power fluctuations in flight +/- 100rpm. Noticed turbine inlet temperature gauge was reading zero and determined the cause to be a turbocharger failure. Made an immediate turn toward [nearby airport] and notified ATC of engine trouble and the need to land. Added full prop/throttle/mixture; selected both fuel tanks; and engaged the auxiliary fuel pump to ensure fuel was not the cause of the problem. Continued toward the airport and approximately 2 NM away from the approach end of runway 17 lost 1000 rpm at full power. [Notified ATC] at that point and entered a right base for 17. Turning base to final; engine seized and stopped completely. Landed safely and coasted off the active runway onto taxiway D. Mechanic's initial diagnosis is that the turbocharger seized and broke apart causing the engine to fail.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.