Cardinal 177/177RG
Flight Crew Commercial; Flight Crew Instrument
Flight Crew Last 90 Days 20; Flight Crew Total 2300; Flight Crew Type 40
Communication Breakdown
Aircraft Equipment Problem Less Severe
Flight Crew Executed Go Around / Missed Approach; Flight Crew Overcame Equipment Problem
Aircraft; Human Factors
There was complete electrical failure in the aircraft as I flew in towards the final approach under IFR conditions. The aircraft mechanic is trying to identify what the problem [is]. Without electrical; I was not able to navigate and felt I was too far east of the runway; for which reason I flew missed approach. I flew missed approach initial north heading; then continued to climb to 5500 feet at which altitude I had a better chance of reaching Center. My radio however could not transmit as the voltage was too low.I was however still able to transmit an emergency squawk code before all power was lost. I was finally able to communicate with ATC via cell phone texting. In the end; it was the cell phone which allowed communication with ATC. Although I had a good name brand emergency radio; in the stress of the moment; it was too difficult to try and find the correct keys in the dark. The buttons I also discovered were too small. Since then I have purchased a larger button version with automatic light-up keys and large screen VOR.In my situation; the cell phone texting was the only means I had to communicate with ATC. Although cumbersome while flying true IFR without autopilot; it provided an essential link. This mode of communication should be available to ATC for emergency situations. Emergency radios should also be 'certified' so that a consumer knows it will perform easily under unfavorable conditions. Features such as easy off/on switch; auto back-lighting of keypad and screen; and VOR are essential.
C177B pilot reported executing a go-around after experiencing a complete electrical failure on approach.