190-02177-02 Rev. A
Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL
FEA
TURES
APPENDICES
INDEX
325
HAZARD AVOIDANCE
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
11000
12000
Descent Rate (FPM)
Height Above T
err
ain
(Feet)
Caution:
“SINK
RATE”
Warning: “PULL UP”
Figure 6-69 Excessive Descent Rate Alert Criteria
PREMATURE DESCENT ALERTING
A
Premature Descent Alert (PDA)
is issued when the system detects the aircraft is significantly below the
normal approach path to a runway.
PDA alerting begins when the aircraft is below 700 feet AGL within 15 nm of the destination airport and
ends when the aircraft is 0.5 nm from the runway threshold.
Figure 6-70 PDA Alerting Threshold
0
100
200
300
400
500
600
700
800
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Height
Above Destination (F
eet)
Distance to Destination (NM)
PDA ALERTING AREA