ACCIDENT COULD HAVE TRANSPIRED WHILE WORKING ON DOZER TRACK FRAME. EE WAS USING HEAVY HAMMERS AND PRY BARS. THE EE DID NOT EXPERIENCE THE PAIN UNTIL AFTER THE SHIFT WAS COMPLEAT AND HE WAS ON HIS WAY HOME. ACCIDENT DID NOT BECOME REPORTABLEUNTIL JULY 11 WHEN EE HAD SURGERY..