Note, I am not talking about when a female chief engineer was a main character, just when was it first mentioned that a female was a chief engineer of any Starfleet vessel.

EDIT: I'm looking for when the first episode/movie aired that had mention of a female chief engineer, not the canonically first fictional female chief engineer.

Note that I'm not asking about when a female chief engineer was a main character, just when it was first mentioned that a female was a chief engineer of any Starfleet vessel.

Also note that I'm looking for the first episode or movie to have aired that had mention of a female chief engineer, not the canonically first fictional female chief engineer.

Note, I am not talking about when a female chief engineer was a main character, just when was it first mentioned that a female was a chief engineer of any Starfleet vessel.

Note, I am not talking about when a female chief engineer was a main character, just when was it first mentioned that a female was a chief engineer of any Starfleet vessel.

EDIT: I'm looking for when the first episode/movie aired that had mention of a female chief engineer, not the canonically first fictional female chief engineer.

Note, I am not talking about when was a female chief engineer a main character, just when was it first mentioned that a female was a chief engineer or any Starfleet vessel?

Note, I am not talking about when a female chief engineer was a main character, just when was it first mentioned that a female was a chief engineer of any Starfleet vessel.