See http://cxc.harvard.edu/mta/SOT_reports/sot-shift.html

ACIS SOT shift report M6450
Dec 9, 2016 (2016:344) 
Plan:

We will execute CAP 1407 to recover from this morning's
unplanned DPA side A power off anomaly.

Steps:
1. Turn on DPA-A, using SOP_ACIS_DPAA_ON
2. SOT/ACIS verify ACIS operation
3. Uplink command load 1A_WS007_164.CLD, containing the command
WSVIDALLDN to power down the video boards.
4. Enable and activate SCS 164 (to execute the command)
5. Clear and disable SCS 164.
6. If approx 30 min remain in the comm, continue, otherwise wait til the
evening comm
7. Reload the ACIS flight software patches, using SOP_ACIS_SW_STDFOPTG.
This SOP also restarts the DEA housekeeping task.
8. Reset the focal plane temperature to -121C, using
SOP_SI_SET_ACIS_FP_TEMP_TO_M121C

On console: John ZuHone and Dick Edgar

Detailed timeline (times Z on 2016:344):

22:21:57 UTC 2016 AOS
22:27:46 UTC 2016 _________ dpaa_on
22:28:37 UTC 2016 _________ verify status: patch level 14
22:28:42 UTC 2016 _________ uplink WSVIDALLDN command
22:29:35 UTC 2016 _________ execute same
22:30:26 UTC 2016 _________ clean up SCS 164
22:31:47 UTC 2016 _________ check time
22:34:59 UTC 2016 _________ uplink flight software patches
22:56:35 UTC 2016 _________ warm-boot BEP to patch level 53
23:04:57 UTC 2016 ----- activate housekeeping
23:07:55 UTC 2016 ----- end patch  SOP
23:08:20 UTC 2016 ________ set FP temp to -121C
23:13:51 UTC 2016 done