Undemanded BC Inflation

Users of AP Diving jackets with an AP200 inflator need to be aware that loosening of the plastic securing nut where the inflator hose connects can result in rapid, undemanded inflation of the BC.

To avoid this issue, nuts are to be checked for tightness when BCs are issued or withdrawn. If a loose nut is discovered then this should be passed to a qualified technician as simply tightening the nut may not resolve the problem.

In the event of an un-demanded inflation, and subsequent ascent, all are reminded of the actions that they should carry out:

  • Breathe Out – this will slow the rate of ascent and reduce the risk of a gas expansion injury
  • Disconnect Inflator Hose – using the quick release fastener
  • Dump Excess Gas – to regain neutral buoyancy.