[QUOTE=Topsail;61694]On a plane, a CVR/FDR is pretty useful because after a crash, there is often no crew member or passenger to talk to !!! In the case of the Costa Concordia, the transportation safety board inspectors will have the choice over 1,000 crew members and 3,000 passengers to interrogate, along with the shore base AIS recording and probably, some other parameters store in a number of navigation equipment such as Radars, ECDIS and engine room data loggers … if not destroyed by the flooding sea water.
The safety board inspectors hold an extensive experience in investigating maritime casualties without VDR. They will found the truth if it is their determination.[/QUOTE]
Not really true.
The witnesses are known as unreliable.
First, when adrenaline jumps up, individual loose focus, with higher frequency of heart rate - you get tunel vision, etc… After some time you start to forget.
Second, witnesses are subject to all kinds of influence, not to say “bullying”, for example, they will be breifed by owners lawyer, statements verified by legal department before being released etc… In worst case they can always get: “You will say this, or we will not re-employ you”.
Third, out of over 4000 people on board, only a handfull have seen what was going on on te bridge.
Finally, my own experience, VDR records are most detailed and exaustive evidence to give facts.
VDR’s that I had on board take records in few seconds frame time of all electronic readings plus voice records.
To name some:
GPS positions in seconds frames,
Echosounder electronic readings,
Speed redings - all gauges,
Radar screen shots, cca three per minute,
voice records, VHF exchange,
telegraph oreders,
possibly - ECDIS screen shots.
This all in a real time records data form.
If it is true that VDR was inoperational, and the company knew about this, this will make the company look really bad.
Allegedly, they knew and approved about near coastal “show off” manouvers.
They had undeclared pax on board.
Unfortuantely, this is Italian flag, and I am afraid we will never see real safety report of this accident, when compared to UK or US flag (MAIB and NTSB safety reports)
From a wider perspective: I am afraid that this case will result in further production of additional clauses, rules, paperwork, procedures in various national (italian) and international legislation.
Also, I wouldnt be surprised for new requirement, for additional (back up) VDR, like we have with all other electronic equipment on the bridge.