Payload Commander John Grunsfeld arrives at KSC aboard a jet aircraft to begin launch preparations.

STS-109 Payload Commander John Grunsfeld arrives at KSC aboard a T-38 jet aircraft to begin launch preparations. This is Grunsfeld's fourth Shuttle flight. The goal of the 11-day mission is repair and maintenance on the Hubble Space Telescope. Five spacewalks are planned to replace Solar Array 2 with Solar Array 3, replace the Power Control Unit, remove the Faint Object Camera and install the Advanced Camera for Surveys (ACS), install the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) Cooling System, and install New Outer Blanket Layer insulation. Launch is scheduled for Feb. 28 at 6:48 a.m. EST