True Blue to the Rescue - S1-E18
Visible crew/equipment: When the Piranatrons are hanging off Stormblaster (a jeep), a driver wearing all black can be seen driving it. A Stormblaster is supposed to be able to control itself.
Power Rangers in Space (1998)
1 visible crew/equipment mistake in season 1
Revealing mistake: We can see Ecliptor's zipper from behind - slightly revealing on Saban's part, considering Ecliptor is supposed to be an evil monster henchman of Astromena's.