Eurocopter AS 350 83 Flight Manual page 143

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FLIGHT MANUAL
3 EMERGENCY PROCEDURES
All the emergency procedures specified in the basic Flight Manual remain
.
applicable.
If the P2 air valve fails to open (light remains off), avoid flying the
helicopter in sand-laden atmosphere to prevent premature damage to the
engine.
Should the valve fail to close (light remains on), flight can be continued
without adverse consequence.
4 NORMAL PROCEDURES
The nonmal procedures laid down in the basic Flight Manual remain
applicable but are completed by the following procedures.
EXTERNAL CHECKS
-Engine air intake: .
Remove ice or snow from the air intake grid.
.Open the engine cowling.
.Check for snow, ice or water in the air intake, and particularly
under the filter.
CHECKS BEFORE STARTING THE ENGINE:
-Test the indicator light located on the instrument panel.
ENGINE POWER CHECK:
When checking the engine, make sure that the sand filter push-button is
set to "off".
When the sand filter is fitted, use the power assurance check chart on
the next page (Figure 1).
The procedures for checks on ground and in flight, given in SECTION 4,
remain applicable.
FLYING IN SAND-LADEN ATMOSPHERE:
-Switch off the heating and de-misting systems.
.
-Depress the SAND FILT push-button.
-Make sure the SAND FILTER light illuminates.
~ : Operating the sand filter causes t4 temperature to rise by
approximately 10'C.
.
DGAC Approved: 350 B3 SU P. 14
I A I B I C I D I FIG I 98-05 Page 2
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