Statements of claim filed in each case allege that the children of the two couples have "suffered varying degrees of nervous shock and consequential economic loss".
"The respondent is liable for damages sustained by the applicants by reason of the accident which caused deaths of the passengers," both statements of claim say.
"The passengers' family's injuries were caused by the breach of duty of care of the respondent."
The families have alleged that MASB "failed to take any or any adequate precautions for the safety of the passengers", "failed to prevent the flight from being operated in a manner that caused it to crash", and "failed to provide any or any sufficient rescue apparatus for the use of passengers to preserve life".
The two cases are expected to return to the Federal Court in Sydney in August.
- AAP