Regarding verbal report to you on 16 April night, we had an oil spill incident at PSB Berth 5 on 16 April, 19.15 hrs. During set up the crane (80 Ton Amarit’s Crane), Crane Operator found Hydraulic Oil leaked approx. 1 ltr on the ground under the crane, did not spray onto anyone, no injury and not leak into the sea water. This cause vessel delayed about 3 hour because missed schedule of pilotage.