New FSSP was added.

1D was removed and optics/contacts were cleaned.  No signs of dirt or corrosion.

PVM calibration was checked.  Disk read correctly and very little (0.002) drift in offset.  Probe
was recalibrated.

After the second flight (high LW as reported by Brent who flew 4th Seat), nose boom was cleaned and blown out.  Visible water in boom when disassembled.  Desiccant was replaced.

Between the two flights the set screw holding one of the switching handles on the radar cam loose and had to be tightened.  Socket head is being rounded out so replacement screw are needed.

GPS data via the Ashtech was recorded for both flights.

APN-159 Comments:  The long delay times after switching to "on" and the inability to calculate height above ground are reminiscent of the problems experienced before it finally failed three years ago.  A good test would be a missed approach to see if it works over land but not over water (no data was provided during 500' passes over the Lake but data resumed on climb out).  Stewart Warner said they most likely cannot fix it this time around.

Avionics databases for the GPS, MFD and FMS were updated.

Ashtech GPS was installed (6 lbs.. in front display cabinet) with 4th Seat PC (N2UWOBS) will be logging the data.  Faster CPU than the laptop seems to show fewer missed data sentences.

Noseboom was inspected . . . no visible water.

External GPS antenna for the SVeeSix was installed to help Larry install time server software on Tigger.

Reference gas bottle for the Li-Cor was left on after the previous flight and lost half of the gas.  Pressure now at ~500psi.  Crew was reminded to please turn off the bottle.

Dew points were checked.

Li-Cor was "zeroed" and the span checked before the flight.