The operator of an unlicensed nursing home pleaded guilty in District of Columbia Superior Court yesterday to 14 of 18 charges that she violated the city's food, solid waste and fire regulations.

Lucille Johnson, 43, who operated the nursing home at 4903 Illinois Ave. NW, entered her plea before Judge Joseph M. Hannon after Assistant Corporation Counsel Mark S. Mann agreed to drop four of the charges pending against her.

According to court records, Johnson pleaded guilty to one charge of operating a nursing home in a structure designated for use as single-family dwelling. She pleaded guilty to five charges that food was prepared under unsanitary conditions accessible to "rodents, insects and the elements."

Johnson also pleaded guilty to violating five city solid waste regulations by failing to properly store trash, In three of the instances, Johnson pleaded guilty to fire code violations in which she permitted "accumulations of combustible and flammable waste debris, refuse, rubbish and litter" at the nursing home.

The government has recommended that Johnson be charged $600 in fines and be given a jail term of 180 days. Sentencing is scheduled for June 11.

City homicide detectives are currently investigating the deathe last year of Sylvester Williams, 64, a diabetic patient at Johnson's nursing home who died because he was not given an adequate supply of insulin, according to the District's chief medical examiner. Johnson has maintained that Williams was well cared for and that he did not suffer from mulnutrition.

In March, government lawyers and police detectives searched the nursing home and brought four patients to the attention of a D.C. Superior Court judge, who ordered them removed from the home.