JANUARY 29, 2015– The Transportation Safety Board of Canada (TSB) locates that upkeep shortages and also absence of ample emergency situation treatments resulted in the November 7, 2013 loss of electric power and also grounding of the guest ferryboat Princess of Acadia in Digby,Nova Scotia There were no injuries or contamination reported.
The Princess of Acadia was coming close to the ferryboat terminal at Digby with 87 travelers and also team aboard when the event happened. In prep work for docking, as the bow thruster was begun, the major generator passed out triggering a loss of electric power and also disabling the major prop pitch control pumps. Once the pitch control pumps quit, the prop drive failed towards complete astern while the engines were still running, triggering the vessel to reduce, quit and also take a trip in reverse in the direction of the close-by coastline up until running grounded.
The examination discovered that a shabby generator part created the failing of 2 major generators and also the power outage of the major electric switchboards, to name a few system failings.
The record claims there were 2 major generators powering the major switchboard when the bow thruster was begun; nonetheless, theNo 1 major generator was shedding excitation because of a shabby brush, triggering the generator to create much less power.The No 2 generator was not able to create the extra power needed to begin the bow thruster, and also the breaker stumbled from existing overload, triggering the interlock to turn on and also disable the bow thruster. Simultaneously, the worn-out brush most likely started arcing, which would certainly have shorted out that collection of brushes and also created the voltage on theNo 1 generator to go down up until the under-voltage journey opened up the breaker, causing a loss of power to the major and also emergency situation switchboards.
“On the Princess of Acadia,” claims the record, “the business had actually switched over to utilizing softer exciter brushes in order to minimize expensive upkeep of the blades slip rings. Although the documents from the prepared upkeep program showed that the brushes were just examined when every couple of months, the team technique was to examine the brushes on a much more regular basis. However, without documents to record each time that the brushes were preserved, the periods at which these jobs were carried out would certainly not be accessible by the team.
Comparison of a brand-new brush (left) and also the used brush from theNo 1 generator (right)
“When an adjustment of devices, such as the button to softer brushes, is made, it is essential that the brand-new devices be evaluated a lot more often which the outcomes of these examinations be recorded to develop an upkeep background. This can help in establishing if any type of modifications to the prepared upkeep system are required. In this instance, the button to softer brushes might have presented brand-new upkeep requirements. However, upkeep and also examinations of the brushes were not continually recorded, interfering with the team’s capability to precisely identify when the brushes must be changed.
“If upkeep and also examinations of vessel devices are not recorded with in-depth and also total documents, there is a raised threat that monitoring of devices integrity and also associated upkeep will certainly be inadequate for establishing total upkeep requirements.
“If maintenance schedules are not updated when critical equipment is modified or replaced, there is a risk that this equipment will not be serviced when necessary and, as a result, will not be fully operational when needed.”
The examination likewise recognized that neither the bridge neither the engine area had efficient treatments in position to reply to the power outage of the major switchboard. Because of this, the master was not educated that engine area workers were having problem recovering power, and also the engine area was not knowledgeable about the seriousness of the scenario.
This restrained an efficient reaction to the emergency situation.
The vessel had actually willingly carried out a security administration system (SMS), yet it did not supply the master with support to proactively determine dangers or check out unsafe events.
There were likewise shortages with passenger-related responsibilities in created emptying treatments and also with Transport Canada’s oversight to guarantee conformity with policies relating to guest security emergency situation treatments. As such, there is a threat that these treatments will certainly not attain their designated function. Previous aquatic examinations (M12C0058 and also M13L0067) have actually discovered shortages in the oversight of guest security policies.
Following the event, Bay Ferries Ltd., the vessel driver, set up enhanced running treatments for when the vessel prepares to come toDigby It has actually likewise mounted a streamlined trip information recorder, which tape-records bridge sound and also info navigating devices and also various other readily available sensing units. Llloyd’s Register, the vessel category culture, has actually enhanced the regularity for generator breaker screening.
Read the record HERE
BAY FERRYBOATS ACTS UPON TSB REFERRALS
Bay Ferries claimed today that it has actually currently acted upon or will certainly act upon every one of the referrals supplied by the Transportation Safety Board (TSB) in reaction to the basing event in November 2013.”Bay Ferries values the job of the Transportation Safety Board and also as constantly will certainly stay devoted to continual renovation of procedures to safeguard the security of our travelers and also our staff members,” claimed Chief Executive Officer Mark MacDon ald.
The TSB record identified a variety of enhancements Bay Ferries has actually made because November 2013, consisting of:
- Improved thruster screening on arrival at Digby;
- Better team release in the engine area when the Princess of Acadia is getting here in Digby;
- A back-up battery power supply to the vessel’s navigational devices; and also
- Installing a streamlined trip information recorder, which tape-records 12 hrs of bridge sound and also information from the radars, automated recognition system, and also various other readily available sensing units.
Prior to the event, assessment of the electric elements and also the upkeep of devices concerned had actually been carried out whatsoever times as needed by the vessel’s category culture.
Bay Ferries likewise educated the TSB that routine interaction occurred in between the bridge and also the engine area.
“Since this incident took place more than a year ago, we looked at what we can do better as a company and proactively took action. This report will help our company continue to act to ensure safety is at the center of everything we do at Bay Ferries,” claimed Don Cormier, Vice President, Operations and alsoSafety Management “For more than 70 years, our companies have provided safe, reliable travel in the Maritimes, including close to 20 of those years in the Bay of Fundy. Every corner of this organization is committed to doing whatever it takes to uphold that tradition of safety for our passengers and our workers.”