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 C. Expendable Parts
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FIG.ITEM |DESIGNATION |IPC-CSN
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140 O-ring 73-21-10 01A-230 160 O-ring 73-21-10 01A-210 180 gasket 73-21-10 01A-040 180 gasket 73-21-10 01A-040A 180 gasket 73-21-10 01A-040B 230 O-ring 73-21-10 01A-060 260 O-ring 73-21-10 01A-270 300 O-ring 73-21-10 01A-290 330 O-ring 73-21-10 01A-250 360 O-ring 73-21-10 01A-060 390 O-ring 73-21-10 01A-070 420 O-ring 73-21-10 01A-190 450 O-ring 73-21-10 01A-100 480 O-ring 73-21-10 01A-120 500 O-ring 73-21-10 01A-140 590 O-ring 73-21-10 01A-170
 D. Referenced Information
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REFERENCE DESIGNATION
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24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power
R 31-60-00-860-001 EIS Start Procedure 31-60-00-860-002 EIS Stop Procedure 70-21-00-918-002 Seals (Preformed Packings and O-rings) and Gaskets 71-00-00-710-006 Minimum Idle Check 71-00-00-790-002 Fuel or Hydraulic or Oil Leakage Limits 71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors 73-29-00-710-040 Operational Test of the FADEC on the Ground (with Engine Motoring) 73-31-10-400-002 Installation of the Fuel Flow Transmitter 78-30-00-081-041 Make the Thrust Reverser Serviceable after Maintenance
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78-30-00-481-041 Make the Thrust Reverser Unserviceable for
 Maintenance 78-36-00-010-040 Opening of the Thrust Reverser Doors 78-36-00-410-040 Closing of the Thrust Reverser Doors 73-21-10-991-302 Fig. 401
 3. Job Set-up
__________
 Subtask 73-21-10-860-052
 A. Aircraft Maintenance Configuration
 (1) On the center pedestal, on the ENG panel 115VU, make sure that a warning notice is in position to tell persons not to start the engine.

 (2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) is off. Make sure that a warning notice is in position to tell persons not to energize the FADEC 1(2).

 (3) Make sure that the access platform is in position.

 Subtask 73-21-10-010-055
 B. Get Access
 (1) Make sure that the fan cowl doors are open: (Ref. TASK 71-13-00-010-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR

 (2) Make sure that the thrust reverser doors are open: (Ref. TASK 78-36-00-010-040) FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR

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 Subtask 73-21-10-040-053

 C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
 4. Procedure
_________
 (Ref. Fig. 401/TASK 73-21-10-991-302)
 Subtask 73-21-10-420-054

 A. Install the HMU. NOTE : Hydromechanical Units (HMUs) that have fluorocarbon (Viton)
____ external seals (SB 73-015) can leak fuel for a short time when they are below 0 deg.C (32.00 deg.F) (Modification 1 and 2) (Ref. TASK 71-00-00-790-002).
 (1) Lubricate the new O-rings with vaseline (Material No. CP5070) and install the new O-rings on the nipples and plugs as follows:
 (a) VBV open nipple (220) and new O-ring (230).
 (b) RACSB nipple (410) and new O-ring (420) at the port marked RACCS. R NOTE : Only applicable for non /P engines.
____ R (c) TVB nipple (410) and new O-ring (420) at the port marked RACCS. R NOTE : Only applicable for /P engines.
____ R (d) VBV closed nipple (320) and a new O-ring (330). R (e) PCR closed nipple (290) and a new O-ring (300). R (f) HPTACC nipple (470) and a new O-ring (480). R (g) LPTACC nipple (440) and a new O-ring (450).
R R PRE CFMI SB 73-0096 R
R (h) SOV nipple (580) and a new O-ring (590). R NOTE : Only applicable for SAC engines.
____ R
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