1. LBT Q1 2007 Engineering Review Instrument Cooling

2. 19-Apr-2007LBT Q1 2007 Engineering Review Highlights (Q1/2007) Upper Left Tree House Controller Installed and Intial Testing Completed

3. 19-Apr-2007LBT Q1 2007 Engineering Review Open Issues Technical Technical Instrument cooling flow restriction, SX side flow meter problem Instrument cooling flow restriction, SX side flow meter problem Schedule Schedule Financial Financial Resource Resource

4. 19-Apr-2007LBT Q1 2007 Engineering Review Progress (Q1/2007) Instrument Cooling System Air Handler Controllers - last 3 near completion New pumps, motors, air separator installed Upper tree house damper doors installed (fans not yet installed) Upper tree house damper doors installed (fans not yet installed) Initial Tree House Cooling Test (December 2006) also vibration testing

5. 19-Apr-2007LBT Q1 2007 Engineering Review

6. 19-Apr-2007LBT Q1 2007 Engineering Review Planning (Q2/2007) Remaining Air Handler Controllers Built, Installed and Tested (GUI testing) Remaining Air Handler Controllers Built, Installed and Tested (GUI testing) Install new expansion tanks Install new expansion tanks Remaining tree house damper doors and fans installed and tested Remaining tree house damper doors and fans installed and tested Thermal imaging of tree houses Thermal imaging of tree houses