Description Unit Interval Compliance Next Due Disposition MOC SB 131-494084 27-JUL-2012 SB 131-49-8122 SB 131-49-8122 RI 09-JUL-2014 APU - AUXILIARY AIRBORNE POWER - GAS TURBINE ENGINE - REPLACE THE STARTER/GENERATOR. PN 288545-7A. RECOMMENDED -7B. OR -7C. WITH PN 288545-9A. SERVICE BULLETIN MOS APU - AIRBORNE AUXILIARY POWER -