Q400 24hr Checks

Question 1

What Items are on the 24hr Checks

Answer 1

Caution/Advisory lights
Fire detection: Engine, APU, baggage
Stall warning
ADC 
Autofeather
Flight compartment door access
Boots, props, ref switch, bypass doors, windshield
Rudder PCU's

Question 2

Engine Fire detection test

Answer 2

Fire handle
Fault A B
Warning tone
CWP Warning (check fire detect)
Master warning
Engine fire push to reset

Question 3

Aft baggage smoke

Answer 3

Warning tone
vent inlet/outlet 
aft btl arm
smoke/extg
CWP smoke
Master warning

Question 4

Fwd baggage smoke

Answer 4

fwd btl arm
smoke/extg
CWP smoke
Master warning

Question 5

APU

Answer 5

Apu panel: fire, fault, fuel valve closed, btl arm, ext switch
CWP: apu caution, check fire detect warning
Master caution

Question 6

Stall warning

Answer 6

Stick shaker

CWP: Stall syst fail / pusher fail caution lights

Question 7

ADC test

Answer 7

14,360
29.23
IAS MISMATCH, IAS, ALT
VMo 284
IAS 285
Overspeed warning tone
CWP: Pitch trim / elevator feel / avionics caution lights
SAT -15ºC WTG2 FAIL

Question 8

Autofeather

Answer 8

“PASSED”

test can be performed twice before mx action

Question 9

Flight compartment access door

Answer 9

bag door, ckpt door, auto unlk and fail light out
CWP: internal door caution light out
Check auto unlock function of door with FA switch

Question 10

Boots

Answer 10

18psi +/-3
Manual cycle check for illumination
Fast cycle (60secs, 24sec dwell)

Question 11

Props

Answer 11

Test function
advisory lights illuminate in cycles
ED oil temp 65º
Wait 30sec before repeating test

Question 12

Ref switch

Answer 12

Check ED indication “Ref speed increase”

Question 13

Engine intake doors

Answer 13

OPN/HTR

heater advisory light comes on when temp is <15ºC

Question 14

Windshield heat

Answer 14

Norm for 5min

CWP: WSHLD CTRL caution light does not illuminate

Question 15

Rudder PCU’s

Answer 15

Push off RUD 1
CWP: RUD HYD caution light
Rudder travel check
Push on RUD 1

Same check with RUD 2