Forum Post: 78L05: How hot should it get

I have a small radio frequency generator/counter, a NorCal FCC-1/2 if it helps, that suddenly quit working. In trying to troubleshoot it. I happened to touch a 78L05 and found it quite hot to the touch. Almost too hot to touch. Is this within the realm of normal or likely the cause of my failure?

Thanks for reading,

John