Don’t remember when last I did this (file and fly an IFR flight plan), maybe way back in 2005 (see Partial Panel). By the way this almost would have become a Partial Panel flight if we hadn’t switched aircraft!
Arriving early at the airport, we discovered that the aircraft had a steady “Low Vac” annunciator display on. Running the engine for a while did nothing for it. The plan was to file and fly under instrument flight rules (IFR). Thunderstorms were in the forecast for the afternoon. When are they never? That in itself was challenging, so definitely didn’t want to work with fewer avionics.
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