Jammed US Deepstar 1st Stage
Incident Date
1907-01-05
Incident Description
Ogof Fach 1972: This cave has a very muddy silted third sump. Somehow mud worked its way into the first stage of the valve a U.S. Divers Deepstar jamming it open. The diver returned by turning his cylinder valve on and off.
Lessons Learned
Consider the make and design of demand valves used for cave diving.
Factors |
|
Line Management |
Negligible |
Gas Management |
Negligible |
Equipment Management |
Major |
Equipment Failure |
Major |
Training |
Minor |
Medical |
Negligible |
Planning |
Negligible |
Procedural Error |
Minor |
Cave Environment |
Major |
Weather |
Negligible |
Other Factor |
Unknown |