The US Bureau of Land Management (BLM) Cliffside plant went down again on Monday 19th September due sensor issue and grid power maintenance. Although it does not appear to be a major issue, it highlights the fragility of the plant. Planned maintenance should address other issues later this year. The plant had been producing fairly consistently since early July at around 2.4mmcf/d of helium (10-15% of global supply). The pipeline pressure has dropped to 574psig on Friday versus the 1,200psig seen early Sept. This is yet another outage the very tight market could have done without. The plant was restarted on Thursday night and is cooling down working towards achieving product purity levels in the following 24-48 hours.