The end of episode 50 and the beginning of 51.
He doesn't die in an episode, he dies during the timeskip. Lucy finds out about it in episode 124.
Episode 13
Episode 41 - The Abyss
In episode 8 first season
episode 46
"The Ed-Touchables"
no
Ed n Seek.
"An Ed is Born"
Episode 11: Miracle in Rush Valley
Episode 45: A Rotted Heart
The very last episode, but al brings him back to life using his pholosphers stone and ed ends up losing his arm and leg again. However Ed is sent to the other side of the gate, in our world. Somewhere in Germany.