−
If these parts have been removed/installed:
●
Propeller
●
Brush block module
●
Metal Oxide Varistor (MOV) module
●
Outside Air Temperature (OAT) sensor
●
Propeller de-ice controller.
The functional test is necessary:
−
To aid troubleshooting
−
For in-depth testing.
From when the system is set to on, a time delay of approximately 5 seconds occurs before the CAS
indications change. This is the time taken for the built-in system test to be completed.
2
Operational Test Of The Propeller De-icing System
2.1
Preparation
2.1.1
Make sure that the area around the propeller is clear of objects.
2.1.2
Open the engine cowling 43AR.
2.1.3
Remove the lockwire and disconnect plug A030P1 from the propeller de-ice timer A030 and connect
the Propeller de-ice test set (Pt.No. T30-010) between the timer and the aircraft wiring.
2.1.4
Make sure that all the jumpers are installed on the propeller de-ice test set.
2.1.5
Open and install a Safety clip - Circuit breaker hold open (Pt.No. T12-030) on this circuit breaker:
−
STARTER (ESSENTIAL BUS).
2.1.6
Energize the aircraft electrical system, refer to AMM 12-B-24-00-00-00A-901A-A.
2.2
Procedure
Note
The aircraft is on the ground (weight on wheels) for this procedure.
Note
The CAS PROPELLER DEICE caution message has a time delay of 20 seconds from when the DE
ICING PROP switch is set to ON.
2.2.1
Set the ICE PROTECTION PROPELLER switch to ON.
2.2.2
On the lower MFD make sure that:
−
The CAS PROPELLER DE ICE caution message comes ON
−
The ICE PROTECTION window PROPELLER green caption is OFF.
2.2.3
Set and hold the AIR/GND switch to AIR.
Note
The propeller heating will not operate if the ambient temperature is above 3 °C.
Note
The failure indication stops when the timer completes its automatic test of the system.
2.2.4
On the lower MFD make sure that:
−
The CAS PROPELLER DE ICE caution message is OFF
−
The ICE PROTECTION window PROPELLER green caption is ON.
PC-12/47E AMM Doc No 02300, ISSUE 01 REVISION 26 MSN 545, 1001-1719,
1721-1999
12-B-AM-00-00-00-I
UNCLASSIFIED
Effectivity: All
12-B-30-60-00-00A-903C-A
UNCLASSIFIED
2021-12-04 Page 3
