Just covering their asses, I guess.
Via the AP:
A passenger on an Alaska Airlines flight bound to Seattle looked out the window and saw what appeared to be a damaged area on the wing with a handwritten note saying: “We know about this.”
Spokeswoman Bobbie Egan said…that it was an approved trim repair to the corner flap on the right wing. A maintenance technician wrote to let the flight crew know.
Egan said: “The message was the result of someone’s good intentions,” but the wing note “was not appropriate and did not follow company procedures”.
The message was immediately removed and Alaska apologised for any alarm it may have caused.