Could work, covers a range of circumstances without being too specific yet indicates something out of the normal.

--------------------------------------------------
Note added at 43 mins (2006-11-28 09:39:38 GMT)
--------------------------------------------------

Given the extra information, disruptions/incidents might be an option.

It very much depends on the extent of the damage. Most authorities and insurers define 'haveri' as the vessel being diasbled and not capable of making way on it's own. On the other hand if one of the generators 'havererar' the whole ship is not disabled. I your text talk in general terms of 'haveri' I suggest you use 'disabled'.

May sound strange, but that is what any "damage" is called in maritime situations.

For example:

fartygshaveri = average, sea damage or wreckage
haveriagent = average agent
haverianmälan = notification of average
haveriattest = certificate of average
haveriklausul = average clause

and so on.

I recommend you google for the exact term or definition you are looking for, in case you need something more specific.

--------------------------------------------------
Note added at 9 hrs (2006-11-28 18:53:23 GMT)
--------------------------------------------------

Sorry, I entered the wrong level of confidence. I am sure that this is the right term for insurance purposes, but if you are uncertain I suggest you google some definitions. Here are a few more links:

http://www.usaverageadjusters.org/rules_of_practice.htm
http://www.panalpina.com/www/global/en/tools_resources/gloss...

Hope some of them are useful.
Good luck!
Susanne