COVERT TOWNSHIP, Mich. (AP) — Many workers at Palisades Nuclear Plant in southwestern Michigan are afraid to raise concerns with managers or challenge their decisions, according to a report commissioned by the plant’s owners and released Tuesday.

New Orleans-based Energy Corp. owns the plant in Van Buren County’s Covert Township and retained consultants earlier this year to examine Palisades’ safety culture. Palisades has been designated by the Nuclear Regulatory Commission as one of the nation’s four worst-performing nuclear plants. Entergy provided a summary of the consultants’ findings to the NRC, which released it.