LBT Q4 2007 Engineering LBT Q4 2007 Engineering ReviewReview

ETPETP

Elevation Track Protection Elevation Track Protection

(oil contamination (oil contamination remediation)remediation)

21-Dec-200721-Dec-2007 LBT Q4 2007 Engineering RevieLBT Q4 2007 Engineering Revieww

Highlights (Q4/2007)Highlights (Q4/2007)

Wipers installed on Left-rear El PadWipers installed on Left-rear El Pad Full sheet metal enclosure testedFull sheet metal enclosure tested

21-Dec-200721-Dec-2007 LBT Q4 2007 Engineering RevieLBT Q4 2007 Engineering Revieww

21-Dec-200721-Dec-2007 LBT Q4 2007 Engineering RevieLBT Q4 2007 Engineering Revieww

21-Dec-200721-Dec-2007 LBT Q4 2007 Engineering RevieLBT Q4 2007 Engineering Revieww

21-Dec-200721-Dec-2007 LBT Q4 2007 Engineering RevieLBT Q4 2007 Engineering Revieww

21-Dec-200721-Dec-2007 LBT Q4 2007 Engineering RevieLBT Q4 2007 Engineering Revieww

Open IssuesOpen Issues TechnicalTechnical

Vacuum system on hold to see if wipers are practicalVacuum system on hold to see if wipers are practical Spring clip still needs to be finessed in all installationsSpring clip still needs to be finessed in all installations Lateral Capillaries need characterization and length Lateral Capillaries need characterization and length

adjustmentadjustment Inboard laterals/gear clearance did not conform to model Inboard laterals/gear clearance did not conform to model

so wipers lift and leak at gear radiusso wipers lift and leak at gear radius ScheduleSchedule

NoneNone FinancialFinancial

None, cost of wipers is lowNone, cost of wipers is low ResourceResource

Mountain support pacing operationMountain support pacing operation

21-Dec-200721-Dec-2007 LBT Q4 2007 Engineering RevieLBT Q4 2007 Engineering Revieww

Progress (Q4/2007)Progress (Q4/2007)

Wipers installed on Left-rear El PadWipers installed on Left-rear El Pad Sheet metal full enclosure testedSheet metal full enclosure tested

21-Dec-200721-Dec-2007 LBT Q4 2007 Engineering RevieLBT Q4 2007 Engineering Revieww

Planning (Q1/2008)Planning (Q1/2008)

Characterize and prove system Characterize and prove system during 1during 1stst qtr. qtr.

Identify and correct problems, Identify and correct problems, measure oil extraction rate.measure oil extraction rate.