It did not “pose a safety risk” to passengers and staff onboard the flight, the airline said.
Used by aircraft engineers, the tape is an aluminium pressure-sensitive tape which is used to do minor repairs on aircraft.
The airline said paint peeling was a “common occurrence” on the aircraft that has been in operation for more than four years.
Jetstar is currently preparing all its 787 aircraft for full wing repaints, with each aircraft taking weeks to complete.