Brussels Sprouts, 286.

CREW TRANSFER T UNNEL KIT (NOT ON STS-1) N CREW EMERGENCY EGRESS PYROTECHNIC ACTUATION MECHANISMS (2) CREW INGRESS/ EGRESS SIDE HATCH DESICCANT \ PLENUM DESICCANT FILTER VENT OUTLET CANISTER CANISTERS (PLENUM) CHECK VALVE OUTER CAVITY SYSTEM Figure 4-12.— Orbiter purge, vent, and drain on brown.