TM 1-1510-253-CL
NOTE the following annunciations on the
PFD and LISTEN for the following audio alert
messages. Note the TERR prompt with a
cyan background adjacent to the PFD R2
Line Select Key and prepare to PRESS the
PFD R2 Line Select Key.
1. Annunciations
a.
Selected Mode displays TERR TEST.
b.
GPWS TERR TERRAIN FAIL Flashes
into view 5 times approximately, then
is removed.
c.
GND PROX Flashes into view 2 times
approximately, then is removed.
d.
G/S INHIB Annunciation Switch
flashes ACTIVE for one second.
e.
PULL UP Flashes in view 5 times
approximately, then is removed.
f.
GND PROX Again flashes in view 2
times approximately, then is removed.
g.
The 9-color grid terrain display self
test pattern.
2. Audio Alerts
a.
"Glideslope"
b.
"Pull Up"
c.
"Terrain, Terrain, Pull Up"
3. PFD TERR (R2) Line Select Key -- PRESS
FEATHER VALVE / FUEL SHUTOFF VALVE
Malfunctions of NTS system or mis-rigging
of feather valve may result in difficulties in
aircraft controllability due to propeller wind-
milling drag, in event of an in flight shutdown.
Malfunctions or mis-rigging of fuel shutoff
valve may result in inability to Airstart engine.
These checks are strongly recommended whenever:
a. The NTS system, feather valve, or fuel shutoff valve's
proper function is in doubt.
P-10
