Bras Sys Acronyms

Question 1

Reduction Gear Box accessories

Answer 1

Hydraulic pump
Over speed Governor
Propeller Control Unit
Auxiliary Generator

Question 2

Turbo Machinery Module

Answer 2

Starter/ Generator
High pressure fuel pump
Oil pump assembly
Air/oil separator

Question 3

Hydraulics

Green system system services

Answer 3

Gear
Rudder one (1)
Outboard brakes
Outboard flaps
Main door
Steering NWS

Question 4

Hydraulics

Blue system services

Answer 4

Flaps inboard nacelle
Inboard brakes
Rudder two (2)
Emergency brake

Question 5

Systems lost in the event of complete electrical failure

Answer 5

Fuel quantity
A/P FD
Comm 2
Engine parameters (bar T6 and Tq)
Flaps
Landing light (bar left)
Anti skid
Pressurisation

Question 6

AUTO TRANSFER

Auto Transfer requires: (2-second delay)

• P
• O
• B

Answer 6

• Power select switch to BATT.
• One or both generator switches in the ON position.
• Both main generator contacts open (Failed/Inop).

Question 7

After an auto transfer occurs, you cannot start the APU because

Answer 7

the Central DC Bus is not powered

Question 8

APU - AUTO shutdown on the Ground

F O O O O L L L L H

Answer 8

Fire
Over Current
Over Speed
Over Volt
Over Temp (on start)
Low Oil Pressure
Loss of Speed Sensor
Loss of ECU (28vDcv Pwr)
Loss of EGT
High Oil Temp.

Question 9

APU - AUTO shutdown

‘OsOv’

Answer 9

Over Speed

Over Voltage

Question 10

APU auto shut down 10G -2A

FOOOOLLLLH

OSOV

Answer 10

FIRE
OVER SPEED (G&A)
OVER VOLTAGE (G&A)
OVER CURRENT 
OVER TEMPERATURE (0n start)
LOW OIL PRESSURE 
LOSS OF SPEED SENSOR 
LOSS OF ECU (28v DC PWR)
LOSS OF EGT
HIGH OIL TEMP

Question 11

Stablised approach

Answer 11

Configured,
On slope, heading, and centre line,
At Vref +10
ROD <1000’/min below 1000 AGL

Minimal manoeuvring and power changes.

Question 12

Electric system, ‘I’m in the AAAAMMBEE!’

Answer 12

APU GEN
AC Inverter
AUX GEN
Auto transfer system
Main starter generator
Main battery
Ext. PWR (ORE)
Emergency lights

Question 13

AC inverters supply ‘FAVR’

Answer 13

FDR/GPWS
AHRS 1 & 2
VOR/ILS 1 & 2
Radar (WX)

Question 14

Time of useful consciousness (TUC)

Answer 14

P

Question 15

A rapid depressurisation may be accompanied by:-

WHAT HEAD

Answer 15

Wind noise (if an exit is not functioning correctly or structural failure)
Hot fluids in the galley boiling due reduction of CAB px.
Air expansion causing a sudden cooling and possibly cabin fog
Toilet smoke detectors activating due to fog in the cabin
Hypoxia
Ear and stomach pain due to gas expansion
A loud noise (if there has been an explosion)
Dust and loose paper blowing about the cabin