Embraer EMB145 - Page 280

SUPPLEMENTARY
PROCEDURES
ENVIRONMENTAL
AIRPLANE
O
PERATIONS
MANUAL
1-02-79
Page
10
Code
01
REVISION 41
Copyright © by Embraer. Refer to cover page for details.
AOM
-
145/1114
BEFORE TAKEOFF
Ice Protection Test:
NOTE: - The ice protection test must be carried out once a day (not
necessarily at the first flight of the day) when icing
conditions are forecast.
- The test may be carried out completely on the ground, or in
2 separate phases (first phase on the ground and second
phase in flight), depending on weather conditions and crew
discretion. For takeoffs when icing conditions exist or are
anticipated for takeoff or climb, the tests in paragraph A
must be performed.
On ground, if engine vibration increases, advance thrust levers, one at
a time, to obtain at least 60% N1 for 5 seconds and then return to the
former setting.
A - When actual icing conditions exist or are anticipated for takeoff and
climb, proceed:
Thrust Levers...........................................................83% N2
Ice Detection Override Knob ...................................ALL
Anti-Icing Buttons (engine,
wing and stabilizer) ..............................................PRESSED
Ice Detection Test Knob ..........................................1, THEN 2
Test knob must be held at least 10 seconds in each test position
but no more than 15 seconds.
For each side separately, check that OPEN inscriptions in the
buttons are illuminated and that, ICE DET 1 (or 2) FAIL and BLD 1
(or 2) LOW TEMP caution messages and ICE CONDITION
advisory message are displayed on EICAS. The CROSS BLD
OPEN advisory message may also be displayed.
NOTE: - Wait for the messages go out of view after each release
of the Test knob.
- For the EMB-145 XR model, when the Ice Detection Test
Knob is selected to 1, the CLR ICE 1, CLR ICE 2,
CLR/I INOP 1 and CLR/I INOP 2 caution messages are
displayed on the EICAS and the lights CLR ICE 1 and
CLR ICE 2 illuminate; when the Ice Detection Test Knob
is selected to 2, none of those caution messages are
displayed on the EICAS.
Thrust Levers...........................................................IDLE
Ice Detection Override Knob ...................................ENG
CAUTION:
ICE DETECTION OVERRIDE KNOB MUST NOT BE SET
TO "ALL" ON GROUND, EXCEPT DURING TEST.