A report into the incident has now been logged on the Aviation Herald.
Incident: Aer Lingus A332 over Iceland on May 11th 2010, broken aileron actuator castings
It would seem that the main turbulence encounter took place en route over Iceland:
I do, however, think that the pictures should not have been posted in the manner in which they were. Posting such images of broken components in the cabin of an aircraft, a cabin which is being littered by the maintenance staff as shown in the pictures, is less than professional to say the least, especially on behalf of the maintenance team.
I am sure that Aer Lingus will be aware of this.
Regards,
EI Premier