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0307-EngineeringReport

Engineering Report 165.1
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Engineering Report
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Date:  03/07/2016
at 5:00 p.m.

Crew Engineer Name: Eriko Moriyama & Masashi Hiraki

Diesel – 88%

Propane – 50%

Gasoline (5 Gallon containers for ATV) –  2 empty containers

Water (trailer) measured in cm from the bottom–    0in / 42in i.e. 0cm/106.6cm

Water (static) measured in cm from the top – 27in / 42in i.e. 68.6cm/106.6cm

Trailer to Static Pump used – 0in i.e. 0cm

Water (loft) –  46gallons

Static to Loft Pump used – 36gallons

Water Meter: 105,678.9

Atv # Oil Checked:  all ATVs full(not used)

Atv # Fuel Used Gals:  None

Atv # Tires Status:  all ATVs OK(not used)

Atv # Hours Used Day:  Not used

Atv # Notes and Comments: Nothing

Summary of Engineering activities: Lost water tank was refilled and it has pump problem (see below questions). We used Sandstorm Rover for testing to take it to EVA tomorrow. It is working except the camera direction which is little off calibration. The connecting parts of some rover batteries were very loose so we soldered them. EVA backpacks are charging for tomorrow’s EVA.

Questions and Concerns to Mission Support:From 16:38, the loft pump keeps pumping every 4 seconds even while no one uses any water, so we decided to keep the pump turned off not to waste water. The loft tank went down slightly (less than 1 gallons) below 10 gallons before refilling it. Could that cause the problem?
Some of the charging cables of EVA suite seem not working. We will perform detailed survey on them tomorrow and will report it.

Water: trailer tank is still empty, we ask for refill the tank.

Gasoline: 2 tanks is still empty, we ask for refill the tanks.