From Pathfinder Adventure Path: Bastion of Blasphemies, which isn't enabled.

Collapsing Lift

HAZARD 10

Stealth +22 (master)

Description The anchor points in the platform's corners suddenly tear loose, causing the entire platform to collapse into the shaft below.

Disable DC 32 Crafting (expert) or DC 35 Thievery (expert) to reinforce one of the anchor points; at least three of the four dangerous anchor points must be disabled to make the lift safe

Collapsing Platform

Trigger The lift is raised or lowered while at least one Small or larger creature stands on it

Effect Attempt a DC 11 flat check. This DC increases by 1 for each creature on the lift that's Medium, or by 4 for each Large creature. On a success, the lift operates normally that round, but on a failure, the anchor points give way, dropping the platform and all creatures on the lift into the shaft. A falling creature can arrest their fall by Grabbing an Edge to grab one of the swinging ropes (DC 33 Reflex), otherwise the creature takes normal falling damage plus an additional 4d6 bludgeoning damage (DC 33 basic Reflex) from falling debris.

Pathfinder Adventure Path: Bastion of BlasphemiesORC