190-01717-B1
G500/G600 TXi Part 23 AML STC Maintenance Manual
Rev. 1
Page 2-13
2.2.11 GTP 59 OAT Probe
The GTP 59 is a remote-mount temperature probe that interfaces to the ADC for OAT display and true
airspeed computations. The GTP 59 is mounted externally on the aircraft, usually near or inside air inlet
ducts, the underside of wing access panels, or on the empennage below the horizontal stabilizer.
Figure 2-14 GTP 59 Outside Air Temperature Probe
2.2.12 GBB 54 Backup Battery
The GBB 54 supplies power to the GDU 700P, internal ADAHRS, essential EIS sensors, and a single GEA
110 in the event of total electrical power loss.
Figure 2-15 GBB 54 Backup Battery
