DOC AIRBUS | AMM A320FInstallation of the Rotor Active Clearance Start Bleed Valve [CFMB]
TASK 75-23-10-400-002-A
Installation of the Rotor Active Clearance Start Bleed Valve
1. Reason for the Job
This task is applicable for NON /P engines.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 75-23-10-860-051-A ** ON A/C NOT FOR ALL
Subtask 75-23-10-420-053-A ** ON A/C NOT FOR ALL
Subtask 75-23-10-410-055-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:10:11 UTC
Installation of the Rotor Active Clearance Start Bleed Valve
1. Reason for the Job
This task is applicable for NON /P engines.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 1M(3 FT) |
| No specific | AR | PLIERS - JAWED, SOFT |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )  | |
| No specific | Torque wrench: range to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) | |
| No specific | Torque wrench: range to between 150 and 140 lbf.in (1.70 and 1.58 m.daN ) | |
| No specific | Torque wrench: range to between 260 and 250 lbf.in (2.94 and 2.83 m.daN ) | |
| 856A1612 | 1 | WRENCH SET, SPANNER - AIRTUBE NUTS |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP2101) | graphite grease |
| (Material No.CP5070) | vaseline |
| (Material No.CP8001) | lockwire 0.032 in. (0.8 mm) dia. |
| (Material No.CP8002) | lockwire 0.032 in. (0.8 mm) dia |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR, 461AL, 462AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 150 | METAL GASKET | AIPC 75-23-10-01-090 |
| 200 | METAL GASKET | AIPC 75-23-10-01-090 |
| 260 | METAL GASKET | AIPC 75-23-10-01-090 |
| 250 | ORIFICE PLATE | AIPC 75-23-10-01-170 |
| 240 | METAL GASKET | AIPC 75-23-10-01-180 |
| 160 | O-RING | AIPC 75-23-10-01-190 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| TASK 24-41-00-862-002-A-01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| TASK 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| TASK 36-11-41-400-040-A | Installation of the Intermediate Pressure (IP) Bleed Check-Valve |
| TASK 36-11-49-400-045-A | Installation of the Lower High-Pressure Duct |
| TASK 36-11-49-400-048-A | Installation of the Fifth-Stage Elbow Duct |
| TASK 36-11-51-400-042-A | Installation of the High-Pressure Bleed Valve |
| TASK 70-21-00-918-002-A | Seals (Preformed Packings and O-rings) and Gaskets |
| TASK 71-00-00-710-006-B | Minimum Idle Check |
| TASK 71-13-00-010-040-B | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-040-B | Closing of the Fan Cowl Doors |
| TASK 73-29-00-710-040-B | Operational Test of the FADEC on the Ground (with Engine Motoring) |
| TASK 73-29-00-710-040-B-02 | Operational Test of the FADEC on the Ground (with Engine Non motoring) |
| TASK 78-30-00-081-041-B | Make the Thrust Reverser Serviceable after Maintenance |
| TASK 78-30-00-481-041-B | Make the Thrust Reverser Unserviceable for Maintenance |
| TASK 78-36-00-010-040-B | Opening of the Thrust Reverser Doors |
| TASK 78-36-00-410-040-B | Closing of the Thrust Reverser Doors |
RACSB ValveSubtask 75-23-10-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) 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) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
Subtask 75-23-10-865-060-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) 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) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 75-23-10-010-058-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 1000EM1 (ENGINE1) | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG1 | 1QG | A08 |
| 121VU | FUEL/LP VALVE/MOT2/ENG1 | 3QG | M25 |
| FOR FIN: 1000EM2 (ENGINE2) | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG2 | 2QG | A09 |
| 121VU | FUEL/LP VALVE/MOT2/ENG2 | 4QG | M26 |
C. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the thrust reverser doors are open: (Ref. AMM TASK 78-36-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 75-23-10-040-053-A ** ON A/C NOT FOR ALL 4. Procedure(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the thrust reverser doors are open: (Ref. AMM TASK 78-36-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 75-23-10-420-053-A ** ON A/C NOT FOR ALL
A. Install the rotor active clearance start bleed (RACSB) valve as follows:
(1) Clean the component interfaces and the adjacent area.
(2) Do a visual inspection of the component interface and/or the adjacent area.
(3) Remove the blanking plug from the fuel drain port of the RACSB valve (60).
(4) Lubricate a new AIPC 75-23-10-01-190 O-RING (160) with vaseline (Material No.CP5070) .
(5) Install the new O-ring (160) on the nipple (170).
(6) Lubricate the threads of the nipple (170) with graphite grease (Material No.CP2101) .
(7) Install the nipple (170) into the drain port of the RACSB valve (60) with your hand.
(8) TORQUE the nipple (170) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ).
(9) Remove the protective closures from the fuel inlet pad of the RACSB valve (60) and from the outlet pad of the fuel manifold (390).
(10) Remove the protective closures from the 5th stage and 9th stage air inlet and outlet ports of the RACSB valve (60).
(11) Position the RACSB valve (60) on the bracket (410) on the core engine.
(12) Lubricate the threads of the bolts (440, 470) with graphite grease (Material No.CP2101) .
(13) Install the bolt (440) in the upper aft bolt hole of the bracket (410) to attach the RACSB valve (60) to the bracket (410) on the core engine.
(14) Install the three bolts (470) that attach the RACSB valve (60) to the bracket (410) on the core engine.
(15) TORQUE the bolts (440, 470) that attach the RACSB valve (60) to the bracket (410) on the core engine to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ).
(16) Position the new metal gasket (430) between the fuel manifold (390) and the fuel inlet pad of the RACSB valve (60) and position the spacer (510) on the fuel manifold (390).
(17) Lubricate the threads of the bolts (420) with graphite grease (Material No.CP2101) .
(18) Install and tighten the bolts (420) with your hand to assemble the fuel manifold (390) to the fuel inlet pad of the RACSB (60).
(19) TORQUE the bolts (420) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ).
(20) If removed, install the bolts (370, 490) and nuts (360, 400) that attach the fuel manifold tubes and loop clamps (350, 380) to the brackets on the core engine.
(21) Position the new AIPC 75-23-10-01-180 METAL GASKET (240) and new AIPC 75-23-10-01-170 ORIFICE PLATE (250) between the 5th stage outlet port of the RACSB valve (60) and the RACSB discharge tube (110). Install the gaskets (240) on each side of the orifice plate (250).
(22) Position the bracket assembly (300) on the RACSB valve (60).
(23) Lubricate the threads of the bolts (220, 230) with graphite grease (Material No.CP2101) .
(24) Install the two bolts (220) in the two aft bolt holes of the 5th stage outlet port of the RACSB valve (60) with your hand to assemble the RACSB discharge tube (110) to the RACSB valve (60).
(25) Install the two bolts (230) in the two forward bolt holes of the 5th stage outlet port of the RACSB valve (60) with your hand.
(26) TORQUE the bolts (220, 230) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ).
(27) Position the new AIPC 75-23-10-01-090 METAL GASKET (200) between the 9th stage outlet port of the RACSB (60) and the lower air start tube (100).
(28) Lubricate the threads of the bolts (210) with graphite grease (Material No.CP2101) .
(29) Install and tighten the bolts (210) with your hand to assemble the lower air start tube (100) to the 9th stage outlet port of the RACSB valve (60).
(30) TORQUE the bolts (210) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ).
(31) Inspect the e-seal (550) (Ref. AMM TASK 70-21-00-918-002).
(32) Position a serviceable e-seal (550) at the combustion case air boss at 9:15 o'clock.
(33) Position the new AIPC 75-23-10-01-090 METAL GASKET (150) between the 9th stage inlet port of the RACSB valve (60) and the upper air start tube (80) and position the spacer (140) on the upper air start tube (80).
(34) Lubricate the threads of the bolts (130, 560, 640) with graphite grease (Material No.CP2101) .
(35) Install and tighten the bolts (560) with your hand to assemble the upper air start tube (80) to the combustion case.
(36) Install and tighten the bolts (130) with your hand to assemble the upper air start tube (80) to the 9th stage inlet port of the RACSB valve (60).
(37) Install and tighten with your hand the bolts (640), nuts (670) and washers (660) that attach the retaining strap (630) and the upper air start tube (80) to the bracket (650).
(38) TORQUE the bolts (560) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ).
(39) Safety the bolts (560) withCP8001 lockwire 0.032 in. (0.8 mm) dia. CP8002 lockwire 0.032 in. (0.8 mm) dia
(40) TORQUE the bolts (130) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ).
(41) TORQUE the bolts (640) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ).
(42) Position the RACSB air tube (70) between the 5th stage air inlet port of the RACSB valve (60) and the coupling nut of the upper tube.
(43) Position the new AIPC 75-23-10-01-090 METAL GASKET (260) between the 5th stage inlet port of the RACSB valve (60) and the RACSB air tube (70) and position the spacer (290) on the RACSB air tube (70).
(44) Position the attachment points of the bracket assembly (300) above the RACSB air tube (70) and the spacer (290).
(45) Lubricate the threads of the bolts (270, 280, 570) with graphite grease (Material No.CP2101) .
(46) Install and tighten the two bolts (270) in the two forward bolt holes of the 5th stage inlet port of the RACSB valve (60) with your hand to assemble the RACSB air tube (70) to the RACSB valve (60).
(47) Install and tighten the two bolts (280) in the two aft bolt holes of the 5th stage inlet port of the RACSB valve (60) with your hand.
(48) Install and tighten the bolt (570) and nut (610) with your hand, with the nut on the outboard side of the bracket (580), to assemble the loop clamp (620) and the RACSB air tube (70) to the bracket (580).
(49) Attach the RACSB air tube (70) to the upper tube at the coupling nut.
(50) TORQUE the tube coupling nut to between 260 and 250 lbf.in (2.94 and 2.83 m.daN ) 856A1612 WRENCH SET, SPANNER - AIRTUBE NUTS (856A1612G01).
(50) Safety the tube coupling nut withCP8001 lockwire 0.032 in. (0.8 mm) dia. CP8002 lockwire 0.032 in. (0.8 mm) dia
(51) TORQUE the bolts (270, 280) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ).
(52) TORQUE the bolt (570) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ).
(53) Remove the blanking plugs from the drain cap fitting and both ends of the fuel drain tube (90) and from the drain tube (190).
(54) Install the fuel drain tube (90) as follows:
(b) TORQUE the two coupling nuts to between 150 and 140 lbf.in (1.70 and 1.58 m.daN ).
(c) Install the drain cap (180) on the fuel drain tube (90) with your hand.
(d) TORQUE the drain cap (180) to between 150 and 140 lbf.in (1.70 and 1.58 m.daN ).
(55) Remove the blanking caps from the electrical connectors of the leads for Channel A (450) and Channel B (460).
(56) Remove the blanking caps from the electrical connectors of the RACSB valve (60) for Channel A (450) and Channel B (460).
(57) Connect the electrical connectors, Channel A (450) and Channel B (460) to the RACSB valve (60). Tighten the connectors with your hand plus one-eighth of a turn. If necessary, use PLIERS - JAWED, SOFT.
Subtask 75-23-10-420-054-A ** ON A/C NOT FOR ALL (1) Clean the component interfaces and the adjacent area.
(2) Do a visual inspection of the component interface and/or the adjacent area.
(3) Remove the blanking plug from the fuel drain port of the RACSB valve (60).
(4) Lubricate a new AIPC 75-23-10-01-190 O-RING (160) with vaseline (Material No.CP5070) .
(5) Install the new O-ring (160) on the nipple (170).
(6) Lubricate the threads of the nipple (170) with graphite grease (Material No.CP2101) .
(7) Install the nipple (170) into the drain port of the RACSB valve (60) with your hand.
(8) TORQUE the nipple (170) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )
. (9) Remove the protective closures from the fuel inlet pad of the RACSB valve (60) and from the outlet pad of the fuel manifold (390).
(10) Remove the protective closures from the 5th stage and 9th stage air inlet and outlet ports of the RACSB valve (60).
(11) Position the RACSB valve (60) on the bracket (410) on the core engine.
(12) Lubricate the threads of the bolts (440, 470) with graphite grease (Material No.CP2101) .
(13) Install the bolt (440) in the upper aft bolt hole of the bracket (410) to attach the RACSB valve (60) to the bracket (410) on the core engine.
(14) Install the three bolts (470) that attach the RACSB valve (60) to the bracket (410) on the core engine.
(15) TORQUE the bolts (440, 470) that attach the RACSB valve (60) to the bracket (410) on the core engine to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )
. (16) Position the new metal gasket (430) between the fuel manifold (390) and the fuel inlet pad of the RACSB valve (60) and position the spacer (510) on the fuel manifold (390).
(17) Lubricate the threads of the bolts (420) with graphite grease (Material No.CP2101) .
(18) Install and tighten the bolts (420) with your hand to assemble the fuel manifold (390) to the fuel inlet pad of the RACSB (60).
(19) TORQUE the bolts (420) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )
. (20) If removed, install the bolts (370, 490) and nuts (360, 400) that attach the fuel manifold tubes and loop clamps (350, 380) to the brackets on the core engine.
(21) Position the new AIPC 75-23-10-01-180 METAL GASKET (240) and new AIPC 75-23-10-01-170 ORIFICE PLATE (250) between the 5th stage outlet port of the RACSB valve (60) and the RACSB discharge tube (110). Install the gaskets (240) on each side of the orifice plate (250).
(22) Position the bracket assembly (300) on the RACSB valve (60).
(23) Lubricate the threads of the bolts (220, 230) with graphite grease (Material No.CP2101) .
(24) Install the two bolts (220) in the two aft bolt holes of the 5th stage outlet port of the RACSB valve (60) with your hand to assemble the RACSB discharge tube (110) to the RACSB valve (60).
(25) Install the two bolts (230) in the two forward bolt holes of the 5th stage outlet port of the RACSB valve (60) with your hand.
(26) TORQUE the bolts (220, 230) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )
. (27) Position the new AIPC 75-23-10-01-090 METAL GASKET (200) between the 9th stage outlet port of the RACSB (60) and the lower air start tube (100).
(28) Lubricate the threads of the bolts (210) with graphite grease (Material No.CP2101) .
(29) Install and tighten the bolts (210) with your hand to assemble the lower air start tube (100) to the 9th stage outlet port of the RACSB valve (60).
(30) TORQUE the bolts (210) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )
. (31) Inspect the e-seal (550) (Ref. AMM TASK 70-21-00-918-002).
(32) Position a serviceable e-seal (550) at the combustion case air boss at 9:15 o'clock.
(33) Position the new AIPC 75-23-10-01-090 METAL GASKET (150) between the 9th stage inlet port of the RACSB valve (60) and the upper air start tube (80) and position the spacer (140) on the upper air start tube (80).
(34) Lubricate the threads of the bolts (130, 560, 640) with graphite grease (Material No.CP2101) .
(35) Install and tighten the bolts (560) with your hand to assemble the upper air start tube (80) to the combustion case.
(36) Install and tighten the bolts (130) with your hand to assemble the upper air start tube (80) to the 9th stage inlet port of the RACSB valve (60).
(37) Install and tighten with your hand the bolts (640), nuts (670) and washers (660) that attach the retaining strap (630) and the upper air start tube (80) to the bracket (650).
(38) TORQUE the bolts (560) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )
. (39) Safety the bolts (560) with
(40) TORQUE the bolts (130) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )
. (41) TORQUE the bolts (640) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )
. (42) Position the RACSB air tube (70) between the 5th stage air inlet port of the RACSB valve (60) and the coupling nut of the upper tube.
(43) Position the new AIPC 75-23-10-01-090 METAL GASKET (260) between the 5th stage inlet port of the RACSB valve (60) and the RACSB air tube (70) and position the spacer (290) on the RACSB air tube (70).
(44) Position the attachment points of the bracket assembly (300) above the RACSB air tube (70) and the spacer (290).
(45) Lubricate the threads of the bolts (270, 280, 570) with graphite grease (Material No.CP2101) .
(46) Install and tighten the two bolts (270) in the two forward bolt holes of the 5th stage inlet port of the RACSB valve (60) with your hand to assemble the RACSB air tube (70) to the RACSB valve (60).
(47) Install and tighten the two bolts (280) in the two aft bolt holes of the 5th stage inlet port of the RACSB valve (60) with your hand.
(48) Install and tighten the bolt (570) and nut (610) with your hand, with the nut on the outboard side of the bracket (580), to assemble the loop clamp (620) and the RACSB air tube (70) to the bracket (580).
(49) Attach the RACSB air tube (70) to the upper tube at the coupling nut.
(50) TORQUE the tube coupling nut to between 260 and 250 lbf.in (2.94 and 2.83 m.daN )
856A1612 WRENCH SET, SPANNER - AIRTUBE NUTS (856A1612G01). (50) Safety the tube coupling nut with
(51) TORQUE the bolts (270, 280) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )
. (52) TORQUE the bolt (570) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )
. (53) Remove the blanking plugs from the drain cap fitting and both ends of the fuel drain tube (90) and from the drain tube (190).
(54) Install the fuel drain tube (90) as follows:
CAUTION:
USE 2 WRENCHES TO TORQUE THE COUPLING NUT TO THE NIPPLE ON THE DRAIN PORT. USE ONE WRENCH TO HOLD THE NIPPLE AND THE OTHER TO TIGHTEN THE COUPLING NUT. THIS WILL PREVENT DAMAGE TO THE COUPLING NUT AND NIPPLE.
(a) Attach the fuel drain tube (90) to the drain tube (190) and to the drain port nipple of the RACSB valve (60) with your hand. (b) TORQUE the two coupling nuts to between 150 and 140 lbf.in (1.70 and 1.58 m.daN )
. (c) Install the drain cap (180) on the fuel drain tube (90) with your hand.
(d) TORQUE the drain cap (180) to between 150 and 140 lbf.in (1.70 and 1.58 m.daN )
. (55) Remove the blanking caps from the electrical connectors of the leads for Channel A (450) and Channel B (460).
(56) Remove the blanking caps from the electrical connectors of the RACSB valve (60) for Channel A (450) and Channel B (460).
(57) Connect the electrical connectors, Channel A (450) and Channel B (460) to the RACSB valve (60). Tighten the connectors with your hand plus one-eighth of a turn. If necessary, use PLIERS - JAWED, SOFT.
B. Install parts of the customer bleed system removed to get access to the RACSB air tube (70) coupling nut and attachment clamp and to the upper air start tube (80) attachment points as follows:
(1) Install the IP bleed check valve (10) (Ref. AMM TASK 36-11-41-400-040).
(2) Install the 5th stage elbow duct (40) (Ref. AMM TASK 36-11-49-400-048).
(3) Install the HP bleed valve (20) (Ref. AMM TASK 36-11-51-400-042).
(4) If necessary, install the lower high pressure duct (30) (Ref. AMM TASK 36-11-49-400-045).
Subtask 75-23-10-410-054-A ** ON A/C NOT FOR ALL (1) Install the IP bleed check valve (10) (Ref. AMM TASK 36-11-41-400-040).
(2) Install the 5th stage elbow duct (40) (Ref. AMM TASK 36-11-49-400-048).
(3) Install the HP bleed valve (20) (Ref. AMM TASK 36-11-51-400-042).
(4) If necessary, install the lower high pressure duct (30) (Ref. AMM TASK 36-11-49-400-045).
C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser doors (Ref. AMM TASK 78-36-00-410-040).
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 75-23-10-440-052-A ** ON A/C NOT FOR ALL Subtask 75-23-10-865-058-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser doors (Ref. AMM TASK 78-36-00-410-040).
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 75-23-10-710-051-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 1000EM1 (ENGINE1) | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG1 | 1QG | A08 |
| 121VU | FUEL/LP VALVE/MOT2/ENG1 | 3QG | M25 |
| FOR FIN: 1000EM2 (ENGINE2) | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG2 | 2QG | A09 |
| 121VU | FUEL/LP VALVE/MOT2/ENG2 | 4QG | M26 |
F. Do a test of the RACSB valve.
(1) Do an operational test of the FADEC on the ground (with engine motoring) (Ref. AMM TASK 73-29-00-710-040).
(2) Do a minimum idle leak check (Ref. AMM TASK 71-00-00-710-006).
5. Close-up(1) Do an operational test of the FADEC on the ground (with engine motoring) (Ref. AMM TASK 73-29-00-710-040).
(2) Do a minimum idle leak check (Ref. AMM TASK 71-00-00-710-006).
Subtask 75-23-10-410-055-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
Subtask 75-23-10-862-051-A ** ON A/C NOT FOR ALL (1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).