INE ENGINE - REPLACEMENT OF DISCREPANT DATA MEMORY RECOMMENDED MODULE (DMM). PN 3876287-1. SERVICE BULLETIN MOS 20-JUN-2012 MSC SB 49-8079 RI APU - AIRBORNE AUXILIARY POWER- GAS TURBINE ENGINE - REPLACEMENT OF DISCREPANT DATA MEMORY RECOMMENDED MODULE (DMM). PN 3876287-1. SERVICE BULLETIN MOS I9-NOV-2012 MSC SB 49-8091 APU - AIRBORNE AUXILIARY PO