First Officer reported that the Captain refused an aircraft that was not repaired correctly. The flight attendants and the original flight crew refused to fly on the aircraft on dead head status to return to base.

Narrative

Our flight crew was assigned Aircraft X for flight. Our CA (Captain) refused to fly Aircraft X; due to grease and oil on the engine. The maintenance log book showed previous write ups for same issue; none being addressed. CA also received support from his Chief Pilot in his refusal decision. Our flight crew was then assigned different aircraft to fly ZZZ-ZZZ1-ZZZ. We were then reassigned to Aircraft X to fly last flight ZZZ-ZZZ1. Our CA; was still refusing to fly Aircraft X. A new CA and FO (First Officer) were added to myself and FA (Flight Attendant) to fly last flight on Aircraft X. Originally; CA was scheduled to DH on said aircraft; last flight to base. CA removed himself from DH. CA informed myself and FA that Maintenance had still not addressed original; multiple write up issue. Myself and FA were left in an uncertain and undesirable position to work and/or fly on Aircraft X. I paged Duty Officer; NAME returned my call. NAME supported the FAs decision to not work on Aircraft X in the same condition that CA and his Chief Pilot agreed to not operate. FA and myself removed ourselves from duty on Aircraft X.