Narrative:

Upon climb out I noticed the right hand engines oil temperature start to rise; approximately 2 minutes of monitoring the oil temperature I watched a rise from 100 degrees to past red line just shy of 150. During the rise of oil temperature I consulted the QRH and had it ready to perform the necessary steps to deal with high oil temperature. Passing high red line I started to reduce power to avoid high oil temperature to no avail. I then proceeded with the recommended precautionary engine shutdown and told regional control I would like to return to the airport and will be shutting down an engine while continuing with all required precautionary shutdown and operating engine and single engine checklists from the QRH. Approach control vectored me to [runway] xxr with no incident getting off at the taxiway where I stopped; shut down and called dispatch to come tow the airplane back to the hangar. It was a faulty gauge as no oil loss and good pressure prevailed after post flight inspection. No possible way to keep [it] from occurring. Isolated event by equipment malfunction.

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Original NASA ASRS Text

Title: SA 227 pilot reported returning to the departure airport after observing a high engine oil temperature; that ultimately was caused by a faulty gauge.

Narrative: Upon climb out I noticed the Right Hand engines oil temperature start to rise; approximately 2 minutes of monitoring the oil temperature I watched a rise from 100 degrees to past red line just shy of 150. During the rise of oil temperature I consulted the QRH and had it ready to perform the necessary steps to deal with high oil temperature. Passing high red line I started to reduce power to avoid high oil temperature to no avail. I then proceeded with the recommended precautionary engine shutdown and told regional control I would like to return to the airport and will be shutting down an engine while continuing with all required precautionary shutdown and operating engine and single engine checklists from the QRH. Approach control vectored me to [Runway] XXR with no incident getting off at the taxiway where I stopped; shut down and called Dispatch to come tow the airplane back to the hangar. It was a faulty gauge as no oil loss and good pressure prevailed after post flight inspection. No possible way to keep [it] from occurring. Isolated event by equipment malfunction.

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.