Think cleaning. [DONE IN 30]

Q1402 Think cleaning. [DONE IN 30] #64 - INCOMING ATTACK Puzzle coming together? We have reached our cruising altitude of 40,000 ft. long ago. As we prepare to land, please fasten your seatbelt and make sure your seat back and folding trays are in their full upright position. Q Leads in to Q64 - IN