Court documents filed Wednesday indicate that former Penn State defensive coordinator Jerry Sandusky plans a new appeal of his child sex abuse conviction.

Sandusky, 70, is serving 30 to 60 years in state prison for molesting 10 boys over 15 years.

The former coach immediately appealed his conviction in 2012, claiming the judge gave incorrect instructions to the jury. That appeal failed.

In a filing with the Centre County courts, Sandusky’s lawyer Alexander Lindsay sought permission to use secret grand jury transcripts as part of the new appeal.

The new appeal will come under the state’s Post Conviction Relief Act, but it is not known what arguments Lindsay will make on Sandusky’s behalf.

The actual appeal is expected to be filed in coming weeks, the filing states.

Sandusky's arrest rocked the world of big-time college football and led to soul searching and recriminations in the Penn State community.

Sandusky worked from 1969 through 1999 under legendary longtime Penn State football coach Joe Paterno, who was fired in the wake of the scandal and who died in January 2012.

Three university administrators are still awaiting trial on accusations that they covered up Sandusky’s crimes. They have filed numerous legal motions delaying their case and challenging the charges against them.