On 25th Nov 2021 at approximately 04:25 hours, sewage tanker driver was driving from Rima toward HAIMA to offload the sewage water in HAIMA sewage treatment plant. Once he reached Al Ghubar south village about 25 KM from start point (Abraj Camp) a third-party vehicle (fish truck) coming from opposite side of the road and entered the sewage tanker lane causing head on collision with sewage tanker. As a result of this incident, sewage tanker driver sustained minor injuries and third-party driver had fracture of his right arm, also major damages to both vehicles. Both drivers were evacuated to HAIMA Hospital by ROP for treatment. Why it happened/Finding : 3rd party vehicle entered the sewage tanker lane Unpermitted night driving journey Driver was above 60 years old without medical waver Internal self-verification did not identify gaps with contractors Driver was Driving in foggy weather Sewage Driver Driving with expire Defensive Driving permit IVMS system fitted in the sewage tanker but non-functional Sewage driver start night driving without informing anyone