During the survey the liferaft is inflated and carefully monitored pressure tests are carried out, the inflation system is checked and reset, the cylinder may be due for a hydrastatic test, if so, it is sent of for test and recharge and refurbishment if needed.
The liferaft is checked for general condition, dryness etc. It is then checked for all notified modifications and these are carried out as needed. The emergency pack is checked and updated as necessary, any expired items are replaced. All equipment is checked and log books completed. Any repairs needed to the liferaft or container are carried out. When the liferaft has passed all the pressure tests to the manufacturers specifications the liferaft is carefully folded, the vacuum bag replaced if necessary, the firing assembly checked and rechecked and then finally packed into its container and sealed. Any labelling required is now fitted to the container and a certificate of service issued. Most liferafts now have a one year service interval, although older or commercial liferafts may still require an annual survey