2012-05-22 12:10:41 anna.aitken@LIGO.ORG 05/22/2012 - LLO - Receive (CER) 2013-09-12 13:38:43 carl.adams@LIGO.ORG 09/12/2013 - LLO - Modify (N.A.) 09/12/2013 Carl Adams Modification Description As per LIGO-E1200907-v1 09/12/2013 Carl Adams Manufacturing Notes Replaced R271 with 0 ohms Replaced R272 with NL 2013-09-13 09:47:13 carl.adams@LIGO.ORG 09/12/2013 - LLO - Install (Spare, in storage) 2018-10-11 12:10:30 michael.laxen@LIGO.ORG 10/11/2018 - LLO - Repair (Removed as IMC was being kicked when IN2 was engaged) 10/11/2018 Michael Laxen Modification Description Replaced U5 Opamp, output was stuck at the -ve rail.