uh...D.B. Cooper!?!?!?!
**************************
The stairs on a 727-100 are outside the (pressurized) “cigar” ,, the door leading to the stairs is not subject to intense negative pressure as it is protected from the airstream by the stairs ,,, with D.B. they were opened with a very low airspeed ,, a speed that would have allowed the hydraulics to operate the stairs.