Tecnam P2002-JF, Flight Manual, Page: 119 / 435

Page 7 - 11
Section 7 – Airframe and Systems description
Electrical System
3
rd
Edition, Rev 0
10.2. V
OLTMETER AND
A
MMETER
The voltmeter indicates voltage on bus bar. A positive ammeter indication warns
that the generator is charging the battery, a negative value indicates the battery's
discharge rate.
10.3. O
IL AND CYLINDER HEADS TEMP
. - O
IL PRESSURE
These instruments are connected in series with their respective sensors. The same
breaker protects all temperature instruments while a second breaker protects oil
pressure indicator and other instruments.
10.4. O.A.T. I
NDICATOR
A digital Outside Air Temperature indicator (°C) is located on the upper left side
of the instrument panel.
10.5. S
TALL
W
ARNING
S
YSTEM
The aircraft is equipped with a stall warning system consisting of a sensor located
on the right wing leading edge connected to a warning horn located near the in-
strument panel.
10.6. A
VIONICS
The central part of the instrument panel holds room for avionics equipment.
The manufacturer of each individual system furnishes features for each system.
10.7. E
XTERNAL
P
OWER
S
UPPLY
On the right side of the tail cone, an external power is present. Using this device it
is possible to feed the electric system directly on the bus bar, by an external power
source. It should be used at the engine start-up in cold weather condition. For en-
gine start below -17°C OAT it is advisable to use the external power source.
Follow this procedure to start the engine using the external power source.
1. Magnetos, Master switch, Generator switch: OFF
2.
Open the receptacle door and insert the external power source’s plug into the
socket
3. Engine start-up procedure (see Sect. 4 in this manual)
4.
Disconnect the external power source’s plug and close firmly the receptacle
door.