Episode 73 of "Quantum Leap"
s04e20 The Curse of Ptah-Hotep

It's almost as though Sam were on vacation when, as Egyptologist Dale Conway, he gets to read hieroglyphics, search lost tombs, and, of course, visit Egypt. But between an encroaching sandstorm, computer glitches back at the Project, the suspicious deaths of the guides, and a 3000-year-old curse to round things off, Sam has very little time to play in the sand.