2012 Ocean Ranger Guidebook Revision 3-7-12 - Alaska ...

2012 Ocean Ranger Guidebook 3-7-12
OWS / OCM system:
Familiarize yourself with the system main components.
From which tanks is the OWS system processing?
OCM system is locked /dedicated responsible person?
Is the OCM system automated?
The OCM system included alarm and three way valve “open / close” functions.
Sample line from main discharge line to the OCM system. This is a small diameter line from the
“inlet side “of the three way valve to the analyzer. This sample line is relatively short and has no
valves / cocks.
To discharge, oil ppm level are recorded this can be done:
o Check “Writer card” / “strip charts”. From previous years feedback it appears that not
much large vessels use the “writer / strip card option”.
o Electronically / stored in the White box / relayed to the engine control room repeater
system.
o OCM data Read outs? Memory read out how is this done?
o Recent alarms?
o OCM system data can be read out local; however this requires to open the “white box
cage”. In order to do so the responsible officer and C/E have to witness the opening and
the reason for the opening. Some vessels do this for routine operations. This is the
opportunity for the OR to witness.
o Is memory storage history of “open box” Close box available? Ask for demonstration?
o Are cards hard discs / repeater printing outs made of the OCM system?
Some vessel had a defective (under repair) closed “sealed” OWS unit. Check the paperwork and
the reporting to the USCG (when in USA waters).
General condition of the three way valve, activator lines (pneumatic / electronic) attached?
Electric cabling.
Piping from the last stage OWS / OCM is relatively small diameter are bypassed or blind flanges
installed? Some vessels made modifications Describe / check.
OWS Citations:
200