Space Shuttle Atlantis | Payload Bay Operations

# Bay Door Operation

## Bay door opening sequence:

- Set the PL BAY DOOR switch to STOP.
- Set the PL BAY DOOR SYS 1 and SYS 2 switches to ENABLE.
- Set the PL BAY DOOR switch to OPEN.
- Wait until the OP/CL status of the talkback indicator shows OP.
- Set the PL BAY DOOR switch to STOP.
- Set PL BAY DOOR SYS 1 and SYS 2 switches to DISABLE.

## Bay door closing sequence:

- Make sure that the radiators, Ku-band antenna and RMS arm are stowed.
- Set the PL BAY DOOR switch to STOP.
- Set the PL BAY DOOR SYS 1 and SYS 2 switches to ENABLE.
- Set the PL BAY DOOR switch to CLOSE.
- Wait until the OP/CL status of the talkback indicator shows CL.
- Set the PL BAY DOOR switch to STOP.
- Set PL BAY DOOR SYS 1 and SYS 2 switches to DISABLE.

Ref: Operations Manual Sec. 2.17.