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Engineering Report — MDRS
Feb 14, 2002

Frank Schubert, Steve McDaniel

Today Frank Schubert was replaced by Steve McDaniel as station engineer. Frank debriefed Steve on a variety of projects and prioritized the projects. Andy de Wet also accompanied the engineering team to start becoming familiar with the tasks and equipment. After crew change and the EVA team departed, McDaniel began to work on the projects assigned by Schubert and accomplished same as noted below:

Drain grey water into the leech field: Done; Repeat in 2-4 days

Empty sink bucket into leech field: Done; Repeat in 2-4 days

Empty incinolet ash bucket: Done; the ash bucket was overflowing; it is not known when last cleanout was accomplished; repeat in 2-4 days

Antiseptic washdown of head: Done; made up 1:4 dilution of commercial bleach prep and placed in spry bottle; instruct crew to use after each use of urinal

Install incinolet liners on wall: Done

Replace rear hatch missing bolt: Done; the upper most hinge was missing both bolts; one was replaced on the uppermost hinge hole, however it was noted that the backing plate appeared to have been stripped out, and it is not known how long this repair will last; we need either a tap & die or other repair means for this bolt and others that are missing in the hatches; there is substantial rusting on the door hinges and backing plate; recommend treating same with rust preventative

Roof hatch membrane attachment: Not done to date; the replacement crew brought rubber cement to attach the roof membranes installed by Schubert around the dome hatch; due to high winds, and due to the required 65 degree/24 hour period on the cement, this will be delayed until weather permits; we did place 1-2 pound iron angles on the loose membrane and this seemed to hold to at least some degree even with the wind gusting to 35+ mph

Installing 2nd circuit line: Partially accomplished; we are installing a second dedicated electrical line from the generator’s 30 amp breaker into the hab’s breaker box (presently a single line supply electrifies both bus bars of the breaker box); this is being done to allow a separate circuit for computer equipment apart from a circuit dedicate to the cooking equipment and hot water heater; McDaniel could not locate a single commercial grade extension line, so we made up a two line unit; subsequent work will be done to affix a suitable connector to the extension cord in order to connect into the 30 amp breaker at the generator and to drop a wire down from the hab breaker box dedicated to the second bus bar

Estimate fuel remaining: Fuel was used to gas up three ATV’s and to top off the generator; we estimate 20 gallons remaining in all carbouys and 55 gallon reservoirs; recommend refilling at least on if not both 55 gallon drums by day’s end of 15FEB02

Flag staff emergency repair: Winds in excess of 35 mph required the lowering of the flagstaff; the lower circular cover for the dome hatch was taken off in order to allow access to the flagstaff; the flag staff was lowered into the hab sufficiently to eliminate any threat of it dismasting and damaging the roof or the satellite receiver dish; it is recommended that a mean such as block and tackle be installed so that the flag can be lowered without having to lower the flag staff into the hab