O-ring Failure
Incident Date
1906-06-05
Incident Description
1965 - A diver in this cave which has short restricted sumps twice knocked his first stage valve partially off his pillar valve causing O-ring failure. He was able to get out quickly. Personal communication has revealed at least three other cases of O-ring failure on the A-clamp adaptor during the 1970s.
Lessons Learned
Since the 1980s the use of DIN fit valves is common place to avoid this issue - Ed.
| Factors |
|
| Line Management |
Negligible |
| Gas Management |
Negligible |
| Equipment Management |
Major |
| Equipment Failure |
Major |
| Training |
Minor |
| Medical |
Negligible |
| Planning |
Negligible |
| Procedural Error |
Minor |
| Cave Environment |
Negligible |
| Weather |
Negligible |
| Other Factor |
Unknown |
