EE was jacking up 62 jeep on mainline near 2S switch EEs pushed jeep to get back on track when the jack bar hit EE on left side injuring left side ribs. 5 days later it was found EE's spleen was bleeding. EE didn't miss work until 2-20-17. It didn't involve job skills, compliance issues proficiency training attitude PPE protective devices No other part 50 criteria apply.