During maneuvering, the a vessel experienced a burst starting air pipe. This resulted in non-availability of the slow speed large bore main engine which caused the subsequent grounding of the Vessel.
Incident Information on Burst of Starting Air Pipe Causing Subsequent Grounding
September 13, 2013 by Leave a Comment
Incident Information on Fresh Water Tank Damage Caused by Blocked Air Pipe
September 6, 2013 by 1 Comment
This incident occured during bunkering of fresh water. A blocked air pipe caused an overpressure in the tank which led to permanent deformations of the tank.
Damaged Air Vent Head
March 1, 2013 by 1 Comment
A vessel was undergoing a periodical survey by a DNV class surveyor. A total of 19 air vent heads (mostly from ballast tanks) were found to be defective and the surveyor requested the master to repair this before leaving port. This example is taken from a DNV case but defective vent heads (sometimes also called air pipe closing devices) are frequently found in ship surveys, so this example is by no means unique.
Main Engine Damage Due to Fuel Contamination from Dry Cargo
December 7, 2012 by Leave a Comment
When a bulk carrier was at sea, high exhaust gas temperatures were noted and several piston rings were found broken after investigation. The rings were renewed and engine restarted. After some hours of running the main engine it malfunctioned once again and more broken rings weer found. The broken rings were again replaced, but then the engine failed to start and the vessel had to be towed to port. A considerable number of piston rings were broken. Excessive wear of liners and piston crown grooves were also found. The fuel oil used was suspected to be a probable cause, although the quality of it was not found abnormal according to the test report.
Officer of the Watch 