We identified two sequential primary NSCLCs harboring distinct actionable driver alterations (EGFR E746 _S752 delinsV and CD74-ROS1) in a patient with NSCLC with a novel germline CHEK2 mutation S5fs∗54 (c.14_20delCGGATGT). The gene discussed is EGFR; the disease is non-small cell lung carcinoma.