Due to the discovery by CTIO
engineer Patricio Schurter that the DECam Filter Control Module (FCM) contains LEDs that are shining brightly, a recovery path for the FCM was laid out. It is still unclear how these LEDs got through the builder tests and the tests at Fermilab, but it is clear that these LEDs will be masked. Today four of the six DECam filters were removed from the FCM and the remaining two will be removed tomorrow. Here are some photos of the activities (photos courtesy Ann Elliott).
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| Here is the telescope at the North position. |
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| Very carefully the filters are removed. |
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| A scissor lift is rented to provide access to the Filter Changer Module. |
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| The filter is lowered to the ground. Success! |
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