1EFF : ALL 1 30-21-49Page 434 1 1 May 01/05R 1 1 1CES 1
TASK 30-21-49-000-045
Removal of the Middle Anti-ice Duct
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking plugs
No specific circuit breaker(s) safety clip(s)
No specific warning notice
No specific access platform 0.5 m (1 ft. 8 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External
Power
71-13-00-010-040 Opening of the Fan Cowl Doors
78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance
78-36-00-010-040 Opening of the Thrust Reverser Doors
R **ON A/C 001-049, 051-060, 062-099, 101-149, 151-199, 201-299, 301-399, R 401-499,
30-21-49-991-302 Fig. 403
**ON A/C 061-061,
30-21-49-991-302-A Fig. 403AR **ON A/C ALL
3. Job Set-up
__________
Subtask 30-21-49-861-057
A. Energize the ground service network
(Ref. TASK 24-42-00-861-001).
Subtask 30-21-49-941-055
B. Safety Precautions
(1)
On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
(2)
Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3)
On the overhead maintenance panel 50VU:
(a)
Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b)
Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 30-21-49-865-058
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
122VU ANTI ICE/ENG/2 1DN2 W10 122VU ANTI ICE/ENG/1 1DN1 X10
Subtask 30-21-49-010-055
D. Get Access
(1) Open the fan cowl doors (Ref. TASK 71-13-00-010-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2) Put the access platform in position.
Subtask 30-21-49-040-070
E. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
Subtask 30-21-49-010-098
F. Open the thrust reverser doors (Ref. TASK 78-36-00-010-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
4. Procedure_________
R R **ON A/C 001-049, 051-060, 062-099, 101-149, 151-199, 201-299, 301-399, 401-499,
(Ref. Fig. 403/TASK 30-21-49-991-302)
**ON A/C 061-061,
(Ref. Fig. 403A/TASK 30-21-49-991-302-A)
R R **ON A/C 001-049, 051-060, 062-099, 101-149, 151-199, 201-299, 301-399, 401-499,
Subtask 30-21-49-020-052
A. Removal of the Middle Anti-ice Duct
(1) Remove the coupling (20) that connects the middle anti-ice duct (35) to the forward anti-ice duct (30). Keep the seal (25) to use again if it is serviceable.
Core Anti-ice Ducts
Figure 403/TASK 30-21-49-991-302
R 1EFF : 001-049, 051-060, 062-099, 101-149, 1 30-21-49Page 438 1151-199, 201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1
R Core Anti-ice Ducts
R Figure 403A/TASK 30-21-49-991-302-A
R 1EFF : 061-061, 1 30-21-49 Page 439
1 1 May 01/05
1 1
1CES 1
(2) Remove the coupling (20) that connects the middle anti-ice duct (35)
to the top anti-ice duct (15). Keep the seal (25) to use again if it
is serviceable.
(3) Remove the bolts (40), the washers (45), and the nuts (50) that
attach the middle anti-ice duct (50) to the fireshield.
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