Human Error

Human Error is a quest in Fallout 4.

Quick walkthrough
Enter Covenant and talk to Honest Dan

Find the caravan wreckage west of Covenant

Deezer's lemonade found in the wrecked caravan will allow for further investigation

Either explore the files on Jacob's computer or transversely, with a skill in luck of 9 or higher, fix the radio in the shop owners house at the far end of town

Find the compound (next to the fishing area in a sewer)

Fight through the guards and get to the doctor, or pass a speech check and be escorted peacefully.

Either release Amelia or Agree that she might be a synth and leave the doctor with her

An alternate way to start the quest is to simply enter the sewer and follow the three previous steps.

Upon choosing wether to spare or leave Amelia, the quest is completed.

Detailed walkthrough
The fishing spot is the location of the compound. The entrance is through the door in the middle pipe down in the water.