Installation of the P4.9 Sensor and Manifold [IAE]
TASK 73-22-51-400-010-B
Installation of the P4.9 Sensor and Manifold
Self explanatory
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 73-22-51-860-051-A ** ON A/C NOT FOR ALL
Subtask 73-22-51-420-051-A ** ON A/C NOT FOR ALL
Subtask 73-22-51-410-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:01:22 UTC
Installation of the P4.9 Sensor and Manifold
FIN: 2004EM1 ** ON A/C NOT FOR ALL
FIN: 2004EM2 ** ON A/C NOT FOR ALL
FIN: 2004EM3 ** ON A/C NOT FOR ALL
1. Reason for the JobFIN: 2004EM2 ** ON A/C NOT FOR ALL
FIN: 2004EM3 ** ON A/C NOT FOR ALL
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V02-141) | corrosion resistant steel lockwire |
| 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 |
|---|---|---|
| 2 | PISTON RINGS | AIPC 73-22-51-80-040 |
| 5 | PISTON RINGS | AIPC 73-22-51-80-040 |
| 6 | PISTON RINGS | AIPC 73-22-51-80-040 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 70-23-11-911-013-A | General Torque Tightening Techniques |
| TASK 70-23-13-911-010-A | Procedures for the Installation of Preformed Packings |
| TASK 70-40-11-911-014-A | Locking Devices General Information |
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 71-13-00-410-010-A | Closing of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 78-30-00-040-012-A | Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance |
| TASK 78-30-00-440-012-A | Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance |
| TASK 78-32-00-010-010-A | Opening of the Thrust Reverser Halves |
| TASK 78-32-00-410-010-A | Closing of the Thrust Reverser Halves |
Subtask 73-22-51-860-051-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 73-22-51-010-055-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. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(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 78-32-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 73-22-51-040-053-A ** ON A/C NOT FOR ALL (1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(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 78-32-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
C. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated: (Ref. AMM TASK 78-30-00-040-012)
4. ProcedureSubtask 73-22-51-420-051-A ** ON A/C NOT FOR ALL
A. Installation of the P4.9 Sensor and Manifold:
(1) Remove all the covers/caps/plugs from the openings.
(2) Install the pipe adaptor.
(a) Install two new AIPC 73-22-51-80-040 PISTON RINGS (5) (Ref. AMM TASK 70-23-13-911-010) in to position on the pipe adaptor (18). Make sure that the openings in the piston rings are opposite to each other.
(b) Install the pipe adaptor (18) in to position on the turbine exhaust case so that the abutment faces touch. Make sure that the piston rings (5) go in to the engine.
(c) Install the bracket (12) and the two bolts (15).
(d) TORQUE the bolts (15) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
(Ref. AMM TASK 70-23-11-911-013).
(e) Safety the bolts (15) with corrosion resistant steel lockwire (Material No.V02-141) (Ref. AMM TASK 70-40-11-911-014).
(3) Install the right manifold.
(a) Install two new AIPC 73-22-51-80-040 PISTON RINGS (2) (Ref. AMM TASK 70-23-13-911-010) in to position on the right manifold (4). Make sure that the openings in the piston rings are opposite to each other.
(b) Install the right manifold (4) in to the turbine exhaust case so that the abutment faces touch. Make sure that the piston rings (2) go in to the engine.
(c) Install the two bolts (1) at the flange connection.
(d) TORQUE the bolts (1) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
(Ref. AMM TASK 70-23-11-911-013).
(e) Connect the right manifold (4) to the pipe adaptor (18).
(f) TORQUE the union nut to between 248 and 230 lbf.in (2.80 and 2.60 m.daN )
(Ref. AMM TASK 70-23-11-911-013).
(g) Safety the bolts (1) and the union nut with corrosion resistant steel lockwire (Material No.V02-141) (Ref. AMM TASK 70-40-11-911-014).
(4) Install the left manifold.
(a) Install two new AIPC 73-22-51-80-040 PISTON RINGS (6) (Ref. AMM TASK 70-23-13-911-010) in to position on the left manifold (11). Make sure that the openings in the piston rings are opposite to each other.
(b) Install the left manifold (11) in to the turbine exhaust case so that the abutment faces touch. Make sure that the piston rings (6) go in to the engine.
(c) Install the two bolts (7) at the flange connection.
(d) TORQUE the bolts (7) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
(Ref. AMM TASK 70-23-11-911-013).
(e) Connect the left manifold (11) to the pipe adaptor (18).
(f) TORQUE the union nut to between 248 and 230 lbf.in (2.80 and 2.60 m.daN )
(Ref. AMM TASK 70-23-11-911-013).
(g) Safety the bolts (7) and the union nut with corrosion resistant steel lockwire (Material No.V02-141) (Ref. AMM TASK 70-40-11-911-014).
(5) Connect the P4.9 pressure rake tube.
(a) Connect the pressure rake tube (17) to the pipe adaptor (18).
(b) TORQUE the union nut to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )
(Ref. AMM TASK 70-23-11-911-013).
(c) Safety the union nut with corrosion resistant steel lockwire (Material No.V02-141) (Ref. AMM TASK 70-40-11-911-014).
(6) Install the support clips.
(a) Install the clips (9), (13) and (20) in to their applicable positions.
(b) Install the bolts (8), (14) and (3) and the nuts (10) and (19).
(c) TORQUE the nuts (10) and (19) and the bolts (14) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
(Ref. AMM TASK 70-23-11-911-013).
5. Close-up(1) Remove all the covers/caps/plugs from the openings.
(2) Install the pipe adaptor.
(a) Install two new AIPC 73-22-51-80-040 PISTON RINGS (5) (Ref. AMM TASK 70-23-13-911-010) in to position on the pipe adaptor (18). Make sure that the openings in the piston rings are opposite to each other.
(b) Install the pipe adaptor (18) in to position on the turbine exhaust case so that the abutment faces touch. Make sure that the piston rings (5) go in to the engine.
(c) Install the bracket (12) and the two bolts (15).
(d) TORQUE the bolts (15) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (e) Safety the bolts (15) with corrosion resistant steel lockwire (Material No.V02-141) (Ref. AMM TASK 70-40-11-911-014).
(3) Install the right manifold.
(a) Install two new AIPC 73-22-51-80-040 PISTON RINGS (2) (Ref. AMM TASK 70-23-13-911-010) in to position on the right manifold (4). Make sure that the openings in the piston rings are opposite to each other.
(b) Install the right manifold (4) in to the turbine exhaust case so that the abutment faces touch. Make sure that the piston rings (2) go in to the engine.
(c) Install the two bolts (1) at the flange connection.
(d) TORQUE the bolts (1) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (e) Connect the right manifold (4) to the pipe adaptor (18).
(f) TORQUE the union nut to between 248 and 230 lbf.in (2.80 and 2.60 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (g) Safety the bolts (1) and the union nut with corrosion resistant steel lockwire (Material No.V02-141) (Ref. AMM TASK 70-40-11-911-014).
(4) Install the left manifold.
(a) Install two new AIPC 73-22-51-80-040 PISTON RINGS (6) (Ref. AMM TASK 70-23-13-911-010) in to position on the left manifold (11). Make sure that the openings in the piston rings are opposite to each other.
(b) Install the left manifold (11) in to the turbine exhaust case so that the abutment faces touch. Make sure that the piston rings (6) go in to the engine.
(c) Install the two bolts (7) at the flange connection.
(d) TORQUE the bolts (7) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (e) Connect the left manifold (11) to the pipe adaptor (18).
(f) TORQUE the union nut to between 248 and 230 lbf.in (2.80 and 2.60 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (g) Safety the bolts (7) and the union nut with corrosion resistant steel lockwire (Material No.V02-141) (Ref. AMM TASK 70-40-11-911-014).
(5) Connect the P4.9 pressure rake tube.
(a) Connect the pressure rake tube (17) to the pipe adaptor (18).
(b) TORQUE the union nut to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (c) Safety the union nut with corrosion resistant steel lockwire (Material No.V02-141) (Ref. AMM TASK 70-40-11-911-014).
(6) Install the support clips.
(a) Install the clips (9), (13) and (20) in to their applicable positions.
(b) Install the bolts (8), (14) and (3) and the nuts (10) and (19).
(c) TORQUE the nuts (10) and (19) and the bolts (14) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
(Ref. AMM TASK 70-23-11-911-013). Subtask 73-22-51-410-051-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
Subtask 73-22-51-440-051-A ** ON A/C NOT FOR ALL Subtask 73-22-51-410-053-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 halves (Ref. AMM TASK 78-32-00-410-010)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
P4.9 Sensor and Manifold