Controls and indicators

Question 1

ENG START SWITCH positions?

Answer 1

**GROUND
open start valve
closed bleed air valve
ground starts - arms selected igniter with ESL to ide
inflight start - arms both igniters - ESL IDLDe

**OFF
both igniters activated ESL in IDLE and:
N2 57-50% / MAX 50-65% or
flight - N2 idle and 5%

**CONT
ignition to selected igniters when engine operating and ESL IDLE.
INFLIGHT - ignition both selectors when N2 below IDLE and ESL IDLE

**FLT
ignition both igniters ESL in IDLE

Question 2

REVERSER LIGHTS

Answer 2

amber
*isolation valve or TR control valve not in commanded position
*1/ more TR sleeves not in commanded state.
*auto restow circuit activated
*failure detected in sync shaft lock circuitry

Question 3

ENGINE CONTROL

Answer 3

ambers
Light operates when:
*engine operating and
AC ground, and
below 80kts OR 30s after touch down.

Question 4

Electronic Engine Control Switches
EEC

Answer 4

ON - white
normal control mode
Eng ratings by EEC from sensed atmospheric conditions and bleed air demand.
ON not in view - EEC manually selected to ALT MODE.

ALTN - amber
EEC auto switch to alternate control mode or manually selected.
EEC provide rated or higher thrust

ON and ALTN view - EEC auto switch to soft alt mode.

EGT limits - observe normal and Altn mode.

Question 5

MAX - Reverser command

Answer 5

RT lever not in down position in flight.

Question 6

MAX - Reverser AIR/GRD

Answer 6

air/ground TR logic failed

Question 7

Reverser Limited

Answer 7

ground
*fault in TR system
flight
*fault in rev system limits RT. TR will not deploy or RT limited to idle.

Question 8

RT lever blocked reverse idle?

Answer 8

until TR more than 60% deployed

Question 9

Locking pawl?

Answer 9

RTL into reverse - engages locking pawl - prevent forward TL move.

Question 10

Engine start lever

Answer 10

IDLE
energizes ignition via EEC
elec open spar fuel shutoff valve in Wing LE.
elec opens engine mounted fuel shutoff valve via EEC.

Cutoff
closed spar/engine fuel shutoff valve
De-energize ignition system

Question 11

APU MAINT light

Answer 11

apu main problem.
apu MAY be operated
light disarmed with APU switch OFF

Question 12

APU EGT indicator -

Answer 12

powered 5min after shutdown

Question 13

APU overspeed -

Answer 13

rpm exceeded - auto shutdown
overspeed shutdown protection feature failed a self test during apu shutdown.
light on with APU off - exting 5min
disarmed with APU off.

Question 14

APU FAULT light

Answer 14

malfunction - auto shutdown
apu off - exting 5min
disarmed apu in off

Question 15

APU LOW OIL PRESS

Answer 15

START - NORMAL
auto shutdown

Question 16

APU switch

Answer 16

OFF
trips apu GEN
closes apu bleed air valve
APu cont run for 60s
apu inlet door closes after shutdown

ON - auto start sequence