Can an admiral command carriers without pilot wings?

Has an admiral ever commanded carrier forces without earning pilot wings?

Yes. Carrier-group command has not universally required the admiral to be a pilot.

Many admirals associated with carrier forces have not been qualified pilots. The pattern varies by navy and by the command being exercised. Even the United States has had carrier-group commanders who did not know how to fly. Command of a multi-ship formation is separate from the specialist qualification needed to operate an aircraft.