Possible Clues:

• Railing on a staircase
• Record-breaking athlete is a handy help on a flight, you say?
• See 5
• Support going up and down
• Sir Roger —, first sub-four-minute miler
• Roger --, four-minute miler
• Record breaker's time is shown above in headline
• Roger --, first man to run a mile in under four minutes
• Handrail (Var.)
• One seat unoccupied, in standard safety feature for flight