Mod. : 5262
ATR 42 Model : 500
GPWS
NAVIGATION SYSTEM
P 6
NOV 01
120
1.15
.
40
40.2 CONTROLS
GPWS - G/S PB
The pbs on CAPT and F/O panel are identical and connected in parallel. GPWS and G/S
indications are integrated into the pbs.
GPWS
Illuminates red as long as any mode 1-2-3-4 alert is activated.
The illumination is accompanied by the voice alert for the particular mode.
G/S
Illuminates amber as long as a mode 5 alert is activated. The
illumination is accompanied by the voice alert for this particular mode.
Pressed * On ground, or above 1000 ft with gear up, will perform the system test
- GPWS FAULT amber lt illuminates on CAP.
- G/S amber lights illuminate on both pilots panels.
- Voice alert GLIDE SLOPE" is given.
- One second time delay.
- GPWS red lights illuminate on both pilots panels.
- Voice alert WHOOP WHOOP PULL UP" is given several times.
- GPWS red lights extinguish.
- G/S lights and GPWS FAULT light will extinguish as soon as the pb is released.
* Below 1000 ft, will inhibit the mode 5 alerts (aural and visual).
GPWS SELECTOR
The selector is guarded in the NORM position
NORM
All alerts are operative.
FLAP OVRD Mode 4 alert caused by flap extension, at less than landing
configuration is inhibited to avoid nuisance warnings in case of landing
with reduced flap setting.
OFF
All mode alerts are inhibited.
STEEP APP PB
The STEEP APP pb modifies the SINK RATE envelope, illuminates blue when pressed in.
Each time the STEEP APP" pb is selected, the LDG FLAP 25" pb is released if already
selected.
It is impossible to select both functions at the same time.
AA
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01/07//2018 REV 1 These notes are not revised after issue For Training Purposes Only
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