Showing posts with label MAIB. Show all posts
Showing posts with label MAIB. Show all posts

Thursday, 18 December 2008

An old theory re-surfaces

At the beginning of December, a new book saw the light of the day. Fishing Explorer – authored by Ernest Suddaby, a former skipper of the Gaul, and published by Maritime Info UK Ltd - makes a very pleasurable read.
Put together with brilliant literary skill, printed in excellent graphic conditions and warmly prefaced by Alan Johnson MP, the book offers the reader a rich source of documentary information and photographic material.
The book carries two main narrative threads: one which depicts the author’s trip to the Falklands and one recounting his time as a skipper onboard the Gaul, interspersed with personal memories and anecdotes.

In his account of the Gaul, along with his impressions and recollections of past events and more recent developments in the Gaul saga – many of which are well worthy of note - the author also shares with us his disagreement with the results of the 2004 Formal Investigation, and his personal opinions as to the causes that might have led to the loss of the vessel.In the author’s view, the sinking of the Gaul was caused by foul weather and bad luck, which led to flooding through the two fish loading hatches cut into the trawl deck. These hatches, it is suggested, could have been opened by the pull of gravity, when the vessel rolled beyond 90 degrees in heavy seas.

Mr Suddaby’s hypothesis is not that new, in fact it has been, if we may say so, previously enjoyed. It is what the results of the first formal inquiry, held in 1974, implied. The MAIB also flirted with this theory for a while, although, after the 2002 underwater survey and further reflection, they decided to abandon it. They did not, however, explain very well why.

Therefore, we have taken it upon ourselves to try and present the reasons why this loss scenario is merely a conception (so as not to say mis-conception) rather than a real possibility.

To elucidate matters, we have compiled the video clip below, which, in a simplified manner, attempts to show how the fish loading hatches on the Gaul would have behaved under various roll conditions. The model presented therein shows that gravity – which inexorably acts downwards at all times and circumstances - would have had the effect of keeping the hatch covers closed and prevented seawater from getting inside the ship, when the ship rolled to an angle of 90 degrees from its vertical position. The model also shows that, when the ship rolled beyond 90 degrees, the hatch covers would have still been kept closed by seawater pressure, and that this would have happened even without taking into account the effects of the hydraulic ram system, which was connected to the hatches.

Obstinacy

“The Department is satisfied that there is no reason to doubt the outcome of the expert analysis that led to the Re-opened Formal Investigations conclusions and consequently there is no reason to re-open the investigation,” 
says the message sent to us by the Department for Transport on 8 October 2007.

Herewith, the DfT are once again proclaiming their faith in the merits of the 2004 Gaul RFI which, it is no longer a secret, did not lead to anything, except injustice and discontent, driving the whole purpose of a formal investigation onto precarious ground.

“You have informed me that the technical report, related documents and information published on the following sites: http://the-trawler-gaul.blogspot.com and www.freewebs.com/inconvenientcitizen, had been viewed by technical experts within the DfT before your latest decision not to re-open the investigation was taken.
I would therefore be grateful if you could tell me who these in-house experts are.”
we inquired gently the very same day.

Well, the DfT have, so far, been unable to give us any reply. They need, it seems, legal advice on how to answer the question.

Why take such precautions? We had only asked for the names of the experts involved… Is it because no in-house technical specialists have been in fact consulted? The DfT draw their technical expertise from agencies such as MCA and MAIB. These, as far as we know, have not yet been requested to advise the Department on any of the technical matters that had been raised... Is it because their advice might not be what the DfT would like to hear?
Anxious and unable to either refute our disclosures or renege the schemes of the previous administration, the DfT is therefore stuck, mindlessly repeating the same old line.

While it may first appear as bizarre, their attitude is quite explicable: the system created by our political regime cannot simply over-ride itself in order to correct the wrongs of that regime.
Inhabitants of a closed system, like the one described by the Michelson and Morley experiment, our government departments and their institutional dependants are, moreover, unable to observe the absolute actions of that system from the outside - trapped as they are within their own relativity, and so much preoccupied with self-preservation.

MAIB confusion

In our post of 16 September 2007 we showed that the calculations for the pressure of the air, trapped inside the Gaul as she sank, which are contained in the MAIB report no 4/99 and were relied upon during the 2004 RFI, are incorrect.
These calculations were performed by BMT, the company which MAIB had sub-contracted to carry out this simple task on the their behalf.

Unable, perhaps, to consign the work to one of their own specialists, or even consult their encyclopaedias, or other publications such as Popular Mechanics, the MAIB decided to farm it out. Generously paid for by the taxpayer, BMT appear, nonetheless, to have got it wrong…
Anyway, when recently asked to offer his comments on the errors identified in their report, the Chief Inspector of Marine Accidents at MAIB, Mr Stephen Meyer, sent us a rather incongruous and terse reply: our emailed inquiry, he said curtly, did not provide grounds for re-opening the Gaul Investigation (?!)
Well, of course our email didn’t provide such grounds: it hadn’t been intended to; it only pointed out that there was a small bit of trouble with their sums.
The rest of our technical evidence and disclosures, however, do provide the grounds - but Mr Meyer, alas, couldn’t comment on that.

The fish loading hatches

In 1999, in the year following their first underwater survey of the wreck of the Gaul, the MAIB produced their Marine Accident Report no. 4/99.
Amongst other things, this report put forward the MAIB’s hypothesis as to why the two large fish loading hatches on the Gaul had been found open during the survey. This stated that, at the time of the loss, the hatches had been unsecured and that they had therefore fallen open during the vessel’s capsize and sinking ’by the stern’.

As we have attempted to demonstrate in the document published at this LINK, the MAIB analysis, taken as read by the 2004 RFI panel, appears to have been seriously flawed.
The error it contains relates to one of the possible mechanisms that could have opened the fish loading hatches, namely, an increase in pressure of the air trapped between the water that was flooding into the vessel and the under side of the closed hatches.The MAIB report stated that the maximum lifting pressure on the underside of the fish loading hatches was only 478 N/m² (49 kg/m²), and that this would occur, for some unknown reason, when the vessel was exactly 80m below the sea surface. (!?)


A simple calculation can show, however, that if the Gaul had had a trim by the head of only 5º [1] and had been submerged to merely two metres below the sea’s surface, the lifting pressure on the underside of each fish-loading hatch could have been of the order of 900 kg/m² (i.e. approximately 3.5 tonnes per hatch), while the self-weight of each hatch was approximately 0.9 tonnes.
This ‘error’ meant that one plausible scenario for the opening of the hatches was incorrectly eliminated from the formal investigation, while another similarly plausible hypothesis – the possibility of the hatches having been opened by the force of internal floodwater acting on the hatches from inside the vessel – was not even mentioned.
Here again, as in the case of the duff and offal chutes, the preferred explanation was crew error.
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[1] Although both the MAIB and RFI experts have concluded that the Gaul sank initially and sedately by the stern, this theory cannot be relied upon with any degree of certainty, as it does not take into account the dynamic loads and ship motions that the vessel would undoubtedly have experienced, whilst at or near to the sea’s surface and following the redistribution and loss of buoyancy that would have occurred, as it flooded and sank. At the time of the loss the weather was extreme, with a significant wave height of circa 10m and with infrequent individual waves of up to 19m in height.

The experts' protocol

In our post of 17 March, we reported on our attempts to obtain two documents held by the Department for Transport (DfT), which are mentioned in the Gaul RFI EXPERTS' PROTOCOL (paragraphs 3, 8 and 9) and which, frankly, should have been published within the final report (as was the case in the MV Derbyshire RFI).
Having failed to lodge a request for these papers via the parliamentary route, on 19 March, I sent THIS EMAIL to the DfT.

Since then, we have managed to obtain a copy of the first document (i.e. the list of “all” possible scenarios for the loss of the Gaul) from the MAIB. (This list looks quite interesting and we intend to comment on it separately, in due course.)

The second document that we would like to obtain, (i.e. the joint report, which gives details of the RFI experts’ consideration of the various loss scenarios that had been put forward during the investigation), the DfT is still not able to provide.
Chased up on this matter, the head of Shipping Policy 4, not too thrilled to hear from us again, said that the Department was now depleted of staff with intimate knowledge of the Gaul affair, so he had had to refer our request to the Treasury Solicitor. The latter, we were told, is now the only person left at the scene, able to guide the DfT in their search for the document in question.

I hope that the joint report – central piece of the £10m investigation - has not been misplaced or mislaid…

Inconsistencies

On the rare occasions when we managed to get a reaction from them, the UK Marine Accident Investigation Branch claimed, hand on heart, that their investigators role in the Gaul RFI had been limited to the mere provision of the underwater survey video footage and technical drawings. The MAIB did nothing more than act as agents” “leaving the retained experts in the formal investigation to draw their own conclusions as to the causes of the accident. This version of events was also backed by Dr Stephen Ladyman, the Transport Minister, in his response to a parliamentary question.

However, Para 3 of the Experts’ Protocol in the Gaul Re-Opened Formal Investigation, which was drawn up in October 2002 and annexed to the 2004 RFI final report, states a rather different thing: A list of all possible scenarios has previously been drawn up by MAIB in consultation with the families’ experts which should form the basis for further work.”, which, somehow, appears to contradict the MAIB’s non-interference claims.

Anxious to solve this inconsistency, we have requested both the MAIB and the Department for Transport that a copy of this list be made available to us. In reply to our request, the MAIB sent us this email. From DfT we haven’t heard anything yet – nothing, except the sound of steps scurrying away from the torchlight.

'Secret Agents'

In 2002 the MAIB carried out an underwater survey of the wreck of the Gaul and produced over 3,000 hours of high quality video footage.
The survey vessel used, MPSV Seisranger, was equipped with nine Remotely Operated Vehicles (ROVs), including several mini-ROVs. The cost for this operation, as the Transport minister advised, amounted to about £3 million.

During the 2004 Re-opened Formal Investigation parts of this video footage were examined by the retained experts and a few selections from this material were afterwards attached to the RFI final report as evidentiary material and placed in the public domain – the coverage of the duff and offal chutes themselves, the very cause of the sinking, representing only a minuscule part of these selections (approx. 64 seconds).

Wishing to obtain some of the missing sections in digital format, so we can publish them more easily, we asked the MAIB to release parts of the footage that were not in the public domain.
In reply to our request, the Chief Inspector of Marine Accidents sent us the following statement:

"MAIB was only acting as an agent in the 2002 Gaul survey, so does not hold any copy of the videos taken.

I am sorry that we cannot assist further"


So, then, the MAIB were acting as agents in the Gaul formal Investigation.
What kind of agents would that be?

Comments from MAIB

We have received a response from the Marine Accident Investigation Branch. Please see HERE.

Wednesday, 17 December 2008

MAIB


I have been in touch with a senior Maritime Accident Investigation Branch (MAIB) source, who had been involved in the preparation of the Gaul case prior to the 2004 formal investigation.

Asked whether the MAIB had provided information to the wreck commissioner (i.e justice David Steel) in respect of the patent design defect in the construction and arrangement of the duff and offal chutes on the Gaul, he would say neither Yes nor No.

As to the pre-investigation deliberations that had taken place between MAIB and other experts on the subject of the faults in the construction of the chutes he had no clear recollection.
Whilst in other cases the MAIB would collect evidence and provide analysis on the causes and circumstances of a marine accident, in the Gaul case, I am told, the MAIB provided the documentary evidence, but left the government’s retained experts to formulate their own conclusions. The MAIB, my interlocutor said, was in a difficult situation vis-á- vis the Gaul case.

I wonder why.

Parliamentary Questions and Answers (I)

Sandra Gidley: To ask the Secretary of State for Transport what estimate he has made of the total cost of investigations and inquiries into the loss of the F. V. Gaul in 2006 prices. [96789]

Dr. Ladyman: The total cost to the Department of investigations and inquiries into the loss of the FV Gaul was £6.5 million.


No adjustment has been made for 2006 prices.
Gadfly: Perhaps Dr Ladyman should know that the Original Formal Investigation was concluded in 1974.
There appear to be some items missing from the above list. The total costs to the Department should also have included:
1. the costs of the stability and seakeeping investigations and model tests carried out for the Department by NMI and YARD between 1975 and 1978 estimated at £75,000 (in 1976 prices)
2. the costs of the two reports by Roger Clarke published in 2000. Stated to have cost the Department £50,000 at that time
3. additionally, the costs of 32 years of governmental time that has not been included in the above (political staff, technical, clerical and administrative staff, MOD, legal etc) - £1m at todays prices would not be an unreasonable evaluation!
If a simple compound interest calculation is carried out on the costs detailed above, using historical Bank Rate indices, then a figure of £10m at 2006 prices is obtained!
Sandra Gidley: To ask the Secretary of State for Transport what progress has been made towards the implementation of the formal safety recommendations arising from the F. V. Gaul Re-opened Formal Investigation. [96790]

Dr. Ladyman: It is considered that, as far as is reasonably practicable, the recommendations have been implemented.
Gadfly: The four formal safety recommendations have not been implemented.
Sandra Gidley: To ask the Secretary of State for Transport whether any evidence of a design fault in the construction and arrangement of the duff and offal chutes on the trawler F. V. Gaul was made available to the Wreck Commissioner during the 2004 investigation. [96794]

Dr. Ladyman: The Marine Accident Investigation Branch provided the inquiry with a copy of a full set of technical drawings for the vessel, a number of which detailed the design of these chutes. These drawings were reviewed by the technical experts and the expert representing the Department for Transport referred to these drawings in the production of the document “Notes on the duff and offal chutes”, submitted to the Re-opened Formal Investigation. These notes included comments on the design of the chutes and the potential design inadequacies.
Gadfly: First of all, the question that had been asked was not answered (i.e. was any evidence of a design fault made available to the Wreck Commissioner?). A yes or no answer would have sufficed.
Secondly, The Marine Accident Investigation Branch would provide, as they normally do and as the Treasury Solicitor recently confessed, “considerable assistance” to the Wreck Commissioner. They would therefore provide much more than a set of old drawings.
Thirdly, the “Notes on the duff and offal chutes”, only commented on a presumed design deficiency in relation to the difficulty of maintenance of the non-return flaps.So, in a couple of sentences, Dr Ladyman implies that either the MAIB performance was poor, or the MAIB witheld evidence, or the retained experts were unable to recognize an obvious design fault in the construction and arrangement of the duff and offal chutes.