Jammed US Deepstar 1st Stage
Incident Date
1972-01-05
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 |
