GRAND RAPIDS, MI -- State authorities are looking to terminate the parental rights of a Sparta father and mother whose infant had 19 fractured bones.

The father, 19-year-old David Joseph Steiger, last week was charged with first-degree child abuse.

The parents brought their 3-week-old infant to the hospital on June 30 because he "didn't appear to be feeling well and was fussy," according to a court petition filed by a Child Protective Services worker.

Doctors, however, quickly discovered the infant had multiple fractures, including breaks in the left femur, tibia, fibula, clavicle and five to six ribs.

"The statements provided by the caretakers are inconsistent with the injuries," the worker wrote in the petition.

Related: 19 fractures found on Sparta infant, father charged with child abuse

According to court documents, Steiger admitted that he was changing the child's diaper on June 29 when he "heard a pop" that came from the child's left leg.

He told the CPS worker he was trying to unfold his son's legs when the "pop" happened.

Steiger allegedly told a Sparta police officer that he could have caused the child's injuries, but he blacked out and didn't know. He also told police and the CPS worker that the boy fell off the living room sofa.

According to the CPS document, the father said he was diagnosed with bipolar disorder and anxiety and, because of that, takes medication.

"Mr. Steiger admits sometimes he blacks out," the CPS worker wrote.

The state Department of Human Services took custody of the infant on July 2 after a judge signed an order to make him a temporary court ward.

An Aug. 29 hearing is scheduled in the parental-rights case.