During its latest round of monthly impact inspections of the nation’s mines the U.S. Mine Safety and Health Administration (MSHA) issued 177 citations, 22 orders and one safeguard during the latest round of monthly impact inspections.

MSHA said that a coal mine in Kentucky was effectively shut down for eight days while problems found during a June 21 inspection were corrected, the Associated Press reported.

Inspectors issued 19 citations and 12 withdrawal orders to Bledsoe Coal Corp.'s Abner Branch Rider Mine in Leslie County, KY. Inspectors found accumulations of coal dust and hydraulic oil, an improperly working methane monitor and other violations.

Tunnel LLC's Tunnel Ridge Mine in Ohio County, WV., received 29 citations and five unwarrantable failure orders. Violations included failure to conduct methane tests.

The inspections began in 2010 after the Upper Big Branch mine explosion killed 29 coal miners in West Virginia.