3551- Auto couple unable to activate dur ~~~~~ 3551- Auto couple unable to activate during 3 weekly.  3551 auto coupler electrical contact pin coverunable to activate. Suspect directional v/v faulty (model : 180012-115-0126). No spare available for c/o. OPS 20 raised to follow up.  Sarma/Wong WK 43846 To follow up.  3551 found directional v/vchoked. Serviced directional v/v & function test the auto coupler - OK.  Chan GF/Alcus/Anand 43847