STS-130: Node 3 undergoing installation – NH3 line options protect Feb 7 target

Following a few minor delays due to poor weather at the Kennedy Space Center (KSC), the arrival of STS-130’s payload to Pad 39A has taken place in the early hours of Monday. Meanwhile, engineers will have several days to play with, following the latest schedule for the arrival of backup NH3 lines to KSC, the second of two options to aid STS-130’s full mission content of installing Node 3 to the Station. Endeavour remains in a good stance to be ready for her February 7 launch date, following the resolution of two issues relating to her right hand Solid Rocket Booster (SRB). More

(Source: NASASpaceflight.com - Jan 18)