(2) Close the fan cowl doors (Ref. TASK 71-13-00-410-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
Subtask 72-00-00-620-065
K. Post Engine Wash Test
(Ref. Fig. 706/TASK 72-00-00-991-322)
(1) On the AIR COND panel 30VU, make sure that:
- The ON legend of the APU BLEED pushbutton switch is off.
- The OFF legend of the PACK 1 and the PACK 2 pushbutton switches are on prior to start the procedure.
- The cross bleed valve rotary selector is on CLOSE position.
(2) Start the engine within 2 hours (or 30 minutes if icing condition) of the last wash cycle to purge the lube/sump system of any water ingestion (Ref. TASK 71-00-00-710-003).
NOTE : This engine run is done to ensure that the bleed system is
____ free from contaminant. Smoke/smell in cabin can result if contaminant enters in the bleed system.
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Engine Cleaning (Washing with Cleaning Agent) Figure 706/TASK 72-00-00-991-322
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NOTE : Corrosion preventive products should be used. If none of the
____ corrosion preventive products specified above is available, the aircraft must resume Revenue Service operation within 24 hours following this Post Wash Test.
(a) Let the engine run at idle for 5 minutes.
(b) After 5 minutes from engine start, do the following:
1 Press the ANTI-ICE/ENG 1(2) pushbutton switch to operate the
_
engine anti-ice system.
2 Make sure that the ON legend of the ANTI-ICE/ENG 1(2)
_ pushbutton switch comes on when the engine anti-ice system operates.
CAUTION : AFTER 30 MINUTES FROM ENGINES START, ANTI-ICE/ENG
_______ 1(2) PUSHBUTTON SWITCH SHOULD BE PRESSED OFF TO DEACTIVATE THE ENGINE ANTI-ICE SYSTEM. IF NOT, DAMAGE TO THE ENGINE COULD OCCUR.
3 Increase and stabilize engine thrust to at least 60 percent
_ Fan (N1) Speed until HPV is closed while PRV is open on ECAM BLEED page.
4 Make sure that HPV is closed and PRV opened on ECAM BLEED page
_ with engine running at this speed.
5 Press the ENG 1(2) BLEED pushbutton switch to operate the
_
engine bleed system.
6 Make sure that the OFF legend of the ENG 1(2) BLEED pushbutton
_ switch goes off when the engine bleed anti-ice system operates.
7 Press the ANTI-ICE/WING pushbutton switch to operate the wing
_
anti-ice system.
8 Make sure that the ON legend of the ANTI-ICE/WING pushbutton
_ switch comes on when the wing anti-ice system operates.
(c) Let the engine run this stabilized Fan (N1) Speed for 10 minutes.
(d) Pull throttle to stabilize engine thrust at idle for 5 minutes.
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(e) After 20 minutes from engine start, do the following:
1 Press the ANTI-ICE/ENG and ANTI-ICE/WING pushbutton switches
_ to turn off both anti ice systems.
2 Make sure that the ON legend of the ANTI-ICE/ENG and
_ ANTI-ICE/WING pushbutton switches goes off.
3 Turn the cross bleed valve rotary selector to AUTO position.
_
4 Press the PACK 1 and PACK 2 pushbutton switches to operate the
_
air conditioning packs.
5 Make sure that the ON legend of the pushbutton switches comes
_
on.
6 Check for evidence of cleaning agent or anti-freeze mixture
_
odor/smoke in the cabin.
- if evidence is found, continue to operate the engine at idle until no odor/smoke remains in the cabin.
- after 10 minutes engine running, if continuous odor/smoke R remains in the cabin, shut down the engine (Ref. TASK 71-00-R 00-710-028) and decontaminate the Environmental Control
System (ECS).
. When Ambient Air Temperature is below 24 deg. C (Ref. TASK 21-00-00-615-003).
. When Ambient Air Temperature is above 24 deg. C (Ref. TASK 21-00-00-615-004).
R - if no evidence is found, shut down the engine (Ref. TASK 71-R 00-00-710-028).
5. Close-up
________
Subtask 72-00-00-869-084
A. Make sure that the work area is clean and clear of tool(s) and other items.
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