Flightradar24 on Twitter: "@JonMitchellITV @TUIUK @Avgeek @Boeing Hi Jon, it's a special tape called "speed tape" that is an aluminum tape rated for use on aircraft and other high speed vehicles like
On more than one flight, I've seen what appears to be silver duct tape affixed to one part of the plane or another. Are these duct tape repairs? - Quora
Airplane Passenger Spots Worker Fixing Jet Engine With TAPE Moments Before Take-Off | Bored Panda
Is That Duct Tape on an Airplane? Turns Out, There's No Need to Panic - When In Manila