Installation Instructions
190-01007-A3 GTN 6XX/7XX AML STC Installation Manual
Rev. 4 Page 3-43
Date: 1/6/2010 Electrical Load Measurement Tail No.: N5272K
Normal Operation
Emergency Operation
Taxiing
10 min
TO/Land
10 min
Cruise
60 min
Cruise
(calculated)
Land
10 min
Circuit/
System
Circuit
Breaker
No.
Operating
Time
Used in
this phase
of flight?
Used in this
phase of
flight?
Used in
this phase
of flight?
Used in
this phase
of flight?
Used in
this phase
of flight?
Alternator Field
A1
Continuous
X
X
X
Annunciator Panel
C1
Continuous
X
X
X
X
X
Vacuum Warning
C2
Intermittent
Stall Warning
C3
Intermittent
Gear Warning
C4
Intermittent
Gear Actuator
C5
Intermittent
Cluster Gage
D1
Continuous
X
X
X
X
X
Ignition
D2
Intermittent
PFD
D3
Continuous
X
X
X
X
X
Turn Coordinator
D4
Continuous
X
X
X
Gear Relay
D5
Intermittent
ADC
E1
Continuous
X
X
X
X
X
Panel Lights
E2
Continuous
X
X
X
X
X
Glareshield Lights
E3
Continuous
X
X
X
X
X
AHRS
E4
Continuous
X
X
X
X
X
Flap Actuator
E5
Intermittent
Com 1
F1
Continuous
X
X
X
X
X
GPS/NAV 1
F2
Continuous
X
X
X
X
X
Com 2
F3
Continuous
X
X
X
GPS/NAV 2
F4
Continuous
X
X
X
Autopilot
F5
Continuous
X *
X
X
Audio Panel
G1
Continuous
X
X
X
X
X
Radio Blower
G2
Continuous
X
X
X
ADF
G3
Continuous
X
X
X
Transponder
G4
Continuous
X
X
X
X
X
GDL 69
H1
Continuous
X
X
X
TCAD
H2
Continuous
X
X
X
JPI Engine Monitor
H3
Continuous
X
X
X
X
X
Bose Headsets
H5
Continuous
X
X
X
X
X
Altitude Encoder
J1
Continuous
X
X
X
X
X
Strobe Light
SW1
Continuous
X
X
X
X
X
Nav Lights
SW2
Continuous
X
X
X
X
X
Recognition Lights
SW3
Continuous
X
X
X
X
X
Landing Light
SW4
Continuous
X
X
X
Pitot Heat
SW5
Continuous
X
X
X
X
Elevator Trim
SW6
Intermittent
Boost Pump
SW7
Intermittent
MEASURED
VALUE
(Amps):
47.5 (a)
60.0 (b1)
Ldg light ON
44.7 (b1)
Ldg light OFF
43.5 (c) 34.0 (d) 48.1 (e)
Alternator Rating
(Amps):
70
Percent of
Alternator Capacity
Used:
68 %
(< 80 %)
86 %
Ldg light ON
(< 95%)
64 %
Ldg light OFF
(< 80%)
62 %
(< 80 %)
N/A N/A
PASS
PASS
PASS
*Autopilot circuit breaker is closed, but autopilot is not engaged.
Figure 3-17. Example Electrical Load Tabulation