Pacific Northern Gas is asking its customers in Prince Rupert and Port Edward to minimize natural gas usage for the time being.
The company says it experienced a pressure drop in the line between Terrace and Prince Rupert Wednesday evening.
PNG says the area that crews need to access in order to inspect and make repairs is challenging enough, but the heavy snow is making things even more difficult.
Officials say there has been no service interruption, but they are asking customers in Prince Rupert and Port Edward to watch their natural gas usage.
PNG will be providing updates throughout Thursday afternoon.