Through Hurricane Catrina, Thunder Horse (H6036) needs to keep the
water tightness in case of entirely hydraulic power loss and electric control loss of the system at seriously damaged condition.
After intensive study with ship operators BP and ABS Huston, and USCG, SEOHAE developed the mechanical locking system. This system is to keep the closing
status of the door at 28 degrees of damaged condition, using a spring mechanism.
These days, off-shore vessels have to apply the mechanical locking system to keep the ship safe against any disaster.
