The Aviation DataBase®
Complete Aviation Regulatory Library
Sept. 11 Sept. 11 America 250
DataBases updated: Nov 6th, 2026
Home Products Library Support Account Login Contact
Service Letter SL-750-49
NameRevisionLangSubjectDate
1enAIRBORNE AUXILIARY POWER - TRANSMITTAL OF ALLIEDSIGNAL BULLETIN GTCP 36-49-7271, REVISION 1, ROTATING COMPONENTS/LIFE LIMITED COMPONENTS/CHECK INTERVAL06/20/1997
enAIRBORNE AUXILIARY POWER - TRANSMITTAL OF ALLIEDSIGNAL SERVICE BULLETIN GTCP36-49-7298, AIRBORNE AUXILIARY POWER - GAS TURBINE ENGINE - REPLACE OIL PRESSURE REGULATOR, PART NO. 3880021-13 WITH PART NO. 3880021-17 AND LOW OIL PRESSURE (LOP) SWITCH, PART NO. 3876001-6 WITH PART NO. 3876001-807/15/1997
enAUXILIARY POWER - INSPECTION OF APU INDICATOR10/03/2000
enAUXILIARY POWER - TRANSMITTAL OF HONEYWELL SERVICE BULLETIN GTCP36-49-7540, AIRBORNE AUXILIARY POWER - GAS TURBINE ENGINE - ONE TIME INSPECTION/REPLACEMENT OF THE COUPLING, PART NO. 234-511-9059, RETAINING BOLT (FUEL CONTROL TO OIL PUMP FLANGES)09/19/2000
enAUXILIARY POWER - AUXILIARY POWER UNIT TRUSS MOUNT CUP INSPECTION01/28/2002
enAUXILIARY POWER - TRANSMITTAL OF HONEYWELL SERVICE BULLETIN GTCP36-49-7717, GAS TURBINE ENGINE - ONE TIME INSPECTION/REPLACEMENT OF THE COUPLING CLAMP, PART NUMBER 234-511-9059, T-BOLT (FUEL CONTROL TO LUBE PUMP FLANGES)02/14/2003