1.Payroll A is base SO allowance for an SO member on duty with a post and stat. (FSO 135R)2.basic SO allowance for a Flag SO member on duty with a post and stat. Each SO member is entitled to 3 weeks leave with pay. Payroll A includes stewards and snipes (engineers) hazard pay. Auditors and supervisors additional pay, RPF pay. (FSO 359RA)3. is the basic allowance for all SO members (FO 3075).