A survey means an independent expert determines the cause and the amount of the damage. The carrier or the insurer may appoint the surveyor, and in some cases the consignee can call in its own expert. What matters is that the surveyor sees the damaged goods and packaging in their original condition. For that reason, do not handle, repair or dispose of damaged cargo before the surveyor arrives.
A surveyor usually examines the cause of the damage (inadequate packaging, a handling error, the way the cargo was loaded, an external factor), its amount and the chance of salvage. The findings in the report play an important part in deciding who is liable when a claim is made.
Expert note: From the moment you take delivery, keep everything in writing. A verbal notice becomes disputed later on; even a short e-mail carries evidential value for its date and content.