A tanker had finished a discharging operation and crew were carrying out pre-departure checks and preparations while awaiting the pilot.
During these checks, an engineer started up the main engine lube oil separator. An alarm indicated an excessive amount of water in the clean oil outlet of the separator.
The engineer immediately reported this issue. Further checks found that the main engine lubricating oil had been contaminated with fresh water.
The Master canceled the departure to allow time to further investigate the anomaly and notified the company, local authorities, harbormaster, charterer, and classification society of the delay, as required in the SMS.
The investigation revealed that the solenoid valve on the main engine lube oil separator had malfunctioned. The internal orifice of the solenoid valve had allowed leakage through to the clean oil outlet and sump tank oil.
Although the maintenance interval for the lube oil separators was set at 4,000 hours or at least once a year, there was no detailed guidance to the vessel crew about solenoid valve maintenance and inspection requirements. It was not anticipated that the internal components of solenoid valves could become worn beyond specifications within this period.
- The company decided to reduce the time interval for scheduled maintenance to 2,000 hours or at least once every six months. Further, the internal components of solenoid valves were to be replaced annually.
- The main engine lube oil separator system was to be fitted with an additional automatic control solenoid shut-off valve on the clean oil outlet line to the sump tank.
You might also like to read..
- Seafarers Win Commitment To Mandatory Internet Access In International Law
- ABS-Approved Sterntube-Less Ship Concept To Save Shipowners Thousands While Keeping Oceans Clean
- Top 12 Tanker Shipping Companies in the World
- NYK’s First Chief Engineers Successfully Complete NTMA And Internal Training Program
- One Of World’s Largest 24,000TEU Ultra Large Container Carriers Undocked In Shanghai
- Seafarers’ Unions Agree On New Three-Year Global Minimum Wage ‘Safety Net’ Deal
- Russian Navy Open Fires At Cargo Ship Sailing Towards Mariupol Port
- Methane Leak From LNG Powered Cargo Ship Caught In Infrared Camera
- 4 Filipino Seafarers Arrested In Australia For Reportedly Importing Cocaine