G650 Acronyms

Question 1

FCC

Answer 1

Flight Control Computer - Controls Flight Mode (Normal, Alternate, Direct & Backup)
2 FCC’s with 2 channels (A & B) with two lanes (Command & Monitor)

Question 2

FCS

Answer 2

Flight Control System - 3 axis Fly by Wire

Question 3

FQSC

Answer 3

Fuel Quantity Signal Conditioner: Provides information to the control panels. Controls fuel to within 200lbs inbalance while fueling

Question 4

HSCU

Answer 4

Horizontal Stabilizer Control Unit: Controls the stabilizer drive

Question 5

IDG

Answer 5

Integrated Drive Generator: Variable speed AC engine generator

Question 6

MCDU

Answer 6

Multipurpose Control Display Unit: Three units on the center control column. Could also be called the FMS. This is where you will find the Solid State Power Power Controllers (SSPC) which are the virtual circuit breakers.

Question 7

MPT

Answer 7

Modular Power Tiles: AC power goes through the Electro Mechanical Circuit Breakers to Remote Interface Units (RIU’s) to the Modular Power Tiles (MDT’s) or the Solid State Power Controllers (SSPC’s).

Question 8

RIU

Answer 8

Remote Interface Unit: AC power goes through the Electro Mechanical Circuit Breakers to Remote Interface Units (RIU’s) to the Modular Power Tiles (MDT’s) or the Solid State Power Controllers (SSPC’s).

Question 9

RVDT

Answer 9

Rotary Variable Differential Transducer

Question 10

SMC

Answer 10

Standby Multifunction Controller: This is a two piece unit located on the glare shield. It is comprised of the Switch Panel Unit (SMU) and the Display Screen (DS).

Question 11

SSPC

Answer 11

Solid State Power Controller: AC power goes through the Electro Mechanical Circuit Breakers to Remote Interface Units (RIU’s) to the Modular Power Tiles (MDT’s) or the Solid State Power Controllers (SSPC’s). These are the virtual circuit breakers and they are found on the Multipurpose Control Display Unit (MCDU) on the center control column.

Question 12

EPCP

Answer 12

Electrical Power Control Panel: On the Pilot’s Overhead Panel (POP) and contains the switches for the L&R Bus Ties, APU Gen, External Power, L&R Generators, Ground Service Bus, Main Batteries (L&R), and the Reset switch.

Question 13

MCE

Answer 13

Motor Control Electronics: on the Electronic Backup Hydraulic Actuator (EBHA) and used to control the Hydraulic Actuator (HA) in the event the Remote Electronic Unit (REU) fails. There are 7 EHBA’s and therefore 7 MCE’s.

Question 14

REU

Answer 14

Remote Electronics Unit: Controls the Hydraulic Actuator (HA). 16 total, 9 on actuators and 7 on the EBHA’s

Question 15

MAU

Answer 15

Modular Avionics Unit: There are three (3) MAU’s on board. Two in the LEER and one in the REER. The MAU gathers information from many locations and then sends it out to the display units for viewing. CAS messages are distributed through these.

Question 16

FMA

Answer 16

Flight Mode Annunciator: Scoreboard for what mode selections are in use.

Question 17

LGCMP

Answer 17

Landing Gear Control Maintenance Panel

Question 18

CPAM

Answer 18

Cabin Pressure Acquisition Module

Question 19

CPC

Answer 19

Cabin Pressure Controller: On Pilot’s Overhead Panel (POP). Selections for Flight, Fault, and Auto. Also has a manual descend and climb dial and a Close/Open valve indicator.

Question 20

SSEC

Answer 20

Static Source Error Correction: Switch located on the REER switch panel behind the Co-pilot seat and checked on cabin preflight to ensure it is enabled.

Question 21

EVAS

Answer 21

Emergency Vision Assurance System

Question 22

BPCU

Answer 22

Bus Power Control Units: The BPCU’s are the “Brains” of the electrical system and provide distribution and protection of the system. They provide detection, protection, and notification of faults and output the findings to the CAS message system. They can be reset by the crew (one time) if the fault is no longer present. They control the Bus Ties to provide power to the opposite side in the event of a fault. The BPCU logic is Left before Right, and Essential before Main.

Question 23

NBPT

Answer 23

No Break Power Transfer: Controlled by the BPCU (Bus Power Control Unit). Uses the Generator Control Unit (GCU) speed control to synchronize the frequency and phase of the IDG (Integrated Drive Generator) to the previous or next AC source. If there is no IDG in the transfer, (APU, External Power Source, or Component Failure) there will be a break in the power supply.

Question 24

CCD

Answer 24

Cursor Control Device: Controls the mouse/cursor on the DU’s

Question 25

AGM

Answer 25

Advanced Graphic Module: If this fails, you will get a red X on the display unit.