ITT
Interstage Turbine Temperature
ATTCS
Automatic Takeoff Thrust Control System
ICC
Integrated Control Center
SPDA
Secondary Power Distribution Assembly
GPU
Ground Power Unit
EGPWS
Enhanced Ground Proximity Warning System
IDG
Integrated Drive Generator
GCU
Generator Control Unit
GLC
Generator Line Contactor
TRU
Transformer Rectifier Units
SSPC
Solid State Power Controllers
MAU
Modular Avionics Unit