DOC AIRBUS | AMM A320FClean the Engine Gas Path for Performance Improvement (Cleaner only) [IAE]
TASK 72-00-00-100-010-A-01
Clean the Engine Gas Path for Performance Improvement (Cleaner only)
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 72-00-00-941-094-A ** ON A/C NOT FOR ALL
Subtask 72-00-00-020-059-A ** ON A/C NOT FOR ALL
Subtask 72-00-00-410-133-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:44:30 UTC
Clean the Engine Gas Path for Performance Improvement (Cleaner only)
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
DO NOT USE A CLEANER ON ENGINES WITH GAS PATHS THAT WERE OPEN TO DRY POWDER FIRE EXTINGUISHING AGENTS. THESE AGENTS ARE NOT WATER SOLUBLE. IF YOU CLEAN WITH WATER, THESE MATERIALS WILL BOND TO ENGINE PARTS.
CAUTION:
TO PREVENT THE FORMATION OF ICE, MIX V01-007 OR V01-124 ALCOHOL WITH THE WATER YOU USE TO DILUTE THE CLEANER IF THE AMBIENT TEMPERATURE IS BETWEEN 40 DEG.F (4.4 DEG.C) AND 25 DEG.F (-3.9 DEG.C). DO NOT WASH BELOW TEMPERATURES OF 25 DEG.F (-3.9 DEG.C).
CAUTION:
THE ENGINE EGT MUST BE BELOW 150 DEG.F (65.6 DEG.C) TO PREVENT ENGINE DAMAGE.
1. Reason for the JobNOTE: This TASK can contribute to fuel savings.
NOTE: A maximum of two hours is permitted to do one of the engine dry out compliance procedures. This can be done at the end of the gas path cleaning task given in Subtask 72-00-00-710-054.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | PLUG - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| No specific | AR | WATER SOURCE - GROUND |
| No specific | Torque wrench: range to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )  | |
| No specific | Torque wrench: range to between 310 and 283 lbf.in (3.50 and 3.20 m.daN ) | |
| IAE4J12031 | 1 | RING - SPRAY |
| IAE4J12034 | 1 | TUBE-WATER WASH |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V01-007) | denatured ethyl alcohol |
| (Material No.V01-124) | Isopropyl Alcohol, Technical grade |
| (Material No.V02-274) | safety cable |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-13-79-610-010-A | Drain the Engine Oil System |
| TASK 12-13-79-610-011-A | Check Oil Level and Replenish |
| TASK 21-00-00-615-803-A | Level B Decontamination of the Environmental Control System (ECS) |
| TASK 70-11-50-100-804-A | Make-up of Cleaning Solutions |
| TASK 71-00-00-700-013-A | Procedure to Dry Out the High Pressure Turbine (HPT) after Oil Contamination |
| TASK 71-00-00-710-018-A | Discontinued Start, Restart and Shutdown Procedures |
| TASK 71-00-00-710-043-A | Normal Engine Automatic-Start Procedure |
| TASK 71-00-00-710-045-A | Test No.1 : Dry Motor Leak Check |
| TASK 71-00-00-710-047-A | Normal Engine Manual-Start Procedure |
| 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 75-32-41-000-010-A | Removal of the Variable Stator Vane (VSV) Actuator |
| TASK 75-32-41-400-010-A | Installation of the Variable Stator Vane (VSV) Actuator |
| TASK 75-32-41-400-010-A-01 | Installation of the Variable Stator Vane (VSV) Actuator (SBE 75-0122, Type G4000VSVA Series) |
| TASK 77-21-43-350-801-A | EGT Harness Dry-Out Procedure |
| 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 |
PS3 Sense Line Air Tube AssemblySubtask 72-00-00-941-094-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Put the WARNING NOTICE(S) in position to tell persons not to start the engine.
(2) Make sure that the engine shutdown occurred five minutes or more before you do this procedure.
(3) On 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 the WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
(4) On AIR COND panel 30VU:
(a) Make sure that the OFF legend of the ENG 1(2) BLEED pushbutton switch is on.
(b) Make sure that the OFF legends of the PACK 1 and PACK 2 pushbutton switches are on.
Subtask 72-00-00-010-125-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on ENG panel 115VU:
(a) Put the WARNING NOTICE(S) in position to tell persons not to start the engine.
(2) Make sure that the engine shutdown occurred five minutes or more before you do this procedure.
(3) On 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 the WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
(4) On AIR COND panel 30VU:
(a) Make sure that the OFF legend of the ENG 1(2) BLEED pushbutton switch is on.
(b) Make sure that the OFF legends of the PACK 1 and PACK 2 pushbutton switches are on.
B. Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
437AL, 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL, 448AR.
Subtask 72-00-00-040-072-A ** ON A/C NOT FOR ALL Subtask 72-00-00-010-126-A ** ON A/C NOT FOR ALL (1) FOR [1000EM1] (ENGINE-1)
437AL, 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL, 448AR.
D. Open the thrust reverser halves (Ref. AMM TASK 78-32-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
451AL, 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL, 462AR.
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
451AL, 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL, 462AR.
Subtask 72-00-00-020-059-A ** ON A/C NOT FOR ALL
A. Disconnect the following air tubes:
(2) Disconnect the P4.9 air sense tube to the Electronic Engine Control (EEC) from the fitting on the bottom of the turbine exhaust case. Install the PLUG - BLANKING on the disconnected air tube end.
PRE SBE 75-0081
(3) Disconnect the stage 12 (P3) make-up air valve muscle air tube from the off-take tube before you do the core wash. Install the PLUG - BLANKING on the disconnected air tube end.
END OF PRE SBE 75-0081
(4) Disconnect the Variable Stator Vane (VSV) control rod from the actuator and manually move the stator vanes to the fully open position and install the rig pin (Ref. AMM TASK 75-32-41-000-010).
Subtask 72-00-00-420-074-A ** ON A/C NOT FOR ALL NOTE: Make sure that all the disconnected tubes are capped properly to prevent water/Foreign Object Damage (FOD) intrusion.
(1) Disconnect the PS3 sensing air tube from the auto start probe. Install the PLUG - BLANKING on the disconnected air tube end. (2) Disconnect the P4.9 air sense tube to the Electronic Engine Control (EEC) from the fitting on the bottom of the turbine exhaust case. Install the PLUG - BLANKING on the disconnected air tube end.
PRE SBE 75-0081
(3) Disconnect the stage 12 (P3) make-up air valve muscle air tube from the off-take tube before you do the core wash. Install the PLUG - BLANKING on the disconnected air tube end.
END OF PRE SBE 75-0081
(4) Disconnect the Variable Stator Vane (VSV) control rod from the actuator and manually move the stator vanes to the fully open position and install the rig pin (Ref. AMM TASK 75-32-41-000-010).
B. Install the IAE4J12031 RING - SPRAY:
(2) Install a spray ring segment with a coupling that connects to the long hose around the bottom of the fan outlet inner vane assembly.
(3) Install the clamp screws on the brackets of the spray rings through the fan blade. Hang the hook of the clamp screw on the LPC outlet guide vane.
(4) Tighten the eight wing nuts on the clamp screws by hand.
(5) Connect the couplings of the spray rings, then safety the spray ring assembly to the fan outlet inner vane assembly with the clamp screws and the wing nuts. Adjust the position of the spray ring assembly as necessary.
(6) Connect one end of the long hose to the spray ring assembly and the other end to a pressure pump for the WATER SOURCE - GROUND.
(7) Safety the long hose to the common nozzle assembly with a clamp around the bottom of the common nozzle.
Subtask 72-00-00-420-060-A ** ON A/C NOT FOR ALL CAUTION:
WHEN YOU PUT THE SPRAY RING SEGMENTS THROUGH THE FAN BLADES, MAKE SURE THAT THE SPRAY RING SEGMENTS DO NOT TOUCH THE ENGINE PARTS THAT MOVE.
IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE EQUIPMENT CAN OCCUR.
(1) Put each of the four spray ring segments (nozzle hole side to the rear) at the inlet of the fan outlet inner vane assembly through the fan blades. (2) Install a spray ring segment with a coupling that connects to the long hose around the bottom of the fan outlet inner vane assembly.
(3) Install the clamp screws on the brackets of the spray rings through the fan blade. Hang the hook of the clamp screw on the LPC outlet guide vane.
(4) Tighten the eight wing nuts on the clamp screws by hand.
(5) Connect the couplings of the spray rings, then safety the spray ring assembly to the fan outlet inner vane assembly with the clamp screws and the wing nuts. Adjust the position of the spray ring assembly as necessary.
(6) Connect one end of the long hose to the spray ring assembly and the other end to a pressure pump for the WATER SOURCE - GROUND.
(7) Safety the long hose to the common nozzle assembly with a clamp around the bottom of the common nozzle.
C. As an alternative to tool IAE 4J12031, you can install the IAE4J12034 TUBE-WATER WASH as follows:
(1) Put the two thicker wooden clamps on the front and aft sides of the No. 7 and No. 8 struts.
(2) Let the grooves in the clamps touch the strut edges and safety the clamps with the two long bolts and wing nuts.
(3) Put the tube between the No. 7 and No. 8 struts from the rear parallel to the engine centreline, then let it go through carefully between the fan exit guide vanes so the tube does not touch the vanes.
(4) Set the square end of the tube to the aft clamps. Make sure that the front bent part of the tube does not touch the trailing edges of the fan blades. If necessary, install the spacer(s) between the aft clamps and the square end.
(5) Put the tube nozzle between the leading edges of the inlet guide vanes.
(6) Hold the tube with the thicker clamps and the thinner wooden clamps and safety them with the four short bolts and wing nuts.
(7) Make sure that the front bent part of the tube does not touch the trailing edges of the fan blades, that the tube nozzle does not touch the inlet guide vanes and that the direction of the tube nozzle is at the correct angle.
(8) If necessary, use spacers to correctly adjust the positions of the clamps and the angle of the tube.
(9) Safety the clamps tightly with the wing nuts.
(10) Connect a wash fluid supply hose to the tube.
Subtask 72-00-00-612-051-A ** ON A/C NOT FOR ALL Subtask 72-00-00-865-052-A ** ON A/C NOT FOR ALL (1) Put the two thicker wooden clamps on the front and aft sides of the No. 7 and No. 8 struts.
(2) Let the grooves in the clamps touch the strut edges and safety the clamps with the two long bolts and wing nuts.
(3) Put the tube between the No. 7 and No. 8 struts from the rear parallel to the engine centreline, then let it go through carefully between the fan exit guide vanes so the tube does not touch the vanes.
(4) Set the square end of the tube to the aft clamps. Make sure that the front bent part of the tube does not touch the trailing edges of the fan blades. If necessary, install the spacer(s) between the aft clamps and the square end.
(5) Put the tube nozzle between the leading edges of the inlet guide vanes.
(6) Hold the tube with the thicker clamps and the thinner wooden clamps and safety them with the four short bolts and wing nuts.
(7) Make sure that the front bent part of the tube does not touch the trailing edges of the fan blades, that the tube nozzle does not touch the inlet guide vanes and that the direction of the tube nozzle is at the correct angle.
(8) If necessary, use spacers to correctly adjust the positions of the clamps and the angle of the tube.
(9) Safety the clamps tightly with the wing nuts.
(10) Connect a wash fluid supply hose to the tube.
E. Open, safety and tag this(these) circuit breaker(s):
Subtask 72-00-00-110-068-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | ENGINE/1 AND 2/IGN/SYS A | 1JH | A03 |
| FOR FIN: 1000EM1 (ENGINE1) | |||
| 121VU | ENGINE/IGN/ENG1/SYS B | 3JH1 | P41 |
| 121VU | ENGINE/IGN/ENG1/SYS A BAT | 2JH1 | P39 |
| FOR FIN: 1000EM2 (ENGINE2) | |||
| 121VU | ENGINE/IGN/ENG2/SYS B | 3JH2 | P42 |
| 121VU | ENGINE/IGN/ENG2/SYS A BAT | 2JH2 | P40 |
F. Clean the compressor (engine gaspath cleaning):
(1) Prepare between 50 and 60 gallons (190 and 230 liters) of Solution Code 181 Engine Gas Path Cleaning Solution.
(b) The water for the engine gaspath cleaning must agree with the local quality specifications for potable water and with these quality specifications:
Table 1 - Potable Water Quality Specifications
(c) If the outside temperature is 41.9 deg.F (5.5 deg.C) or less, use water mixed with denatured ethyl alcohol (Material No.V01-007) or V01-124 Isopropyl Alcohol, Technical grade
(2) Make sure that you do not operate the starter more than five minutes cumulative.
(b) Between the cycles, there must be a period of 15 seconds minimum when the N2 speed is zero (0) rpm to allow for the starter rotor lubrication.
(c) After the three cycles, let the starter cool for 30 minutes before you try a new start or motoring.
(d) Do not engage the starter again with the engine motoring above 10 percent N2.
(3) Do the following wash procedures:
(a) Motor the engine with the starter until a minimum of 14 percent N2 is reached (Ref. AMM TASK 71-00-00-710-045).
(b) While you continue to motor the engine at a minimum of 14 percent N2, spray between 10 and 15 gallons (40 and 60 liters) of solution code 181 engine gas path cleaning Solution in two minutes into the low pressure compressor.
(c) Stop motoring engine and let it soak for a minimum of 10 minutes.
(d) After a minimum soaking time of 10 minutes, motor the engine with the starter until a minimum of 14 percent N2 is reached (Ref. AMM TASK 71-00-00-710-045).
(e) While you continue to motor the engine at a minimum of 14 percent N2, spray between 10 and 15 gallons (40 and 60 liters) of solution code 181 engine gas path cleaning Solution in two minutes into the low pressure compressor.
(f) Stop motoring the engine, and let it soak for a minimum of 10 minutes.
(5) Do the subsequent rinse procedures two cycles, and let the engine soak for 10 minutes minimum between the rinse procedure cycles:
(a) Motor the engine with the starter until a minimum of 14 percent N2 is reached (Ref. AMM TASK 71-00-00-710-045).
(b) While you continue to motor the engine at a minimum of 14 percent N2, spray between 10 and 15 gallons (40 and 60 liters) of potable water or potable water/alcohol mix in two minutes into the low pressure compressor.
(c) Stop motoring the engine and let it soak for a minimum of 10 minutes.
(6) After a minimum soaking time of 10 minutes, dry motor the engine with the starter at a minimum of 14 percent N2 (Ref. AMM TASK 71-00-00-710-045).
Subtask 72-00-00-420-061-A ** ON A/C NOT FOR ALL (1) Prepare between 50 and 60 gallons (190 and 230 liters) of Solution Code 181 Engine Gas Path Cleaning Solution.
NOTE: Volumes are given for reference only. It is permitted to use different volumes.
NOTE: One part cleaner to four parts water is a maximum concentration level. Operators may vary the concentration level below the maximum to suit the individual operations.
(a) Make-up of the cleaning solution for solution code 181 (Ref. AMM TASK 70-11-50-100-804). (b) The water for the engine gaspath cleaning must agree with the local quality specifications for potable water and with these quality specifications:
NOTE: When the local quality specifications for potable water and the quality specifications that follow do not agree, the quality specifications that follow are applicable.
Table 1 - Potable Water Quality Specifications
| PROPERTY | PERMITTED LEVELS (ANALYSIS AT 75°F (24°C)) |
|---|---|
| pH | 6.0-10.0 |
| Total dissolved solids | 500 milligrams/liter maximum |
| Resistance or conductivity: | |
| Specific resistance | 1800 ohm-centimeters minimum |
| Conductivity | 550 microsiemens/centimeter maximum |
| Chlorid | 250 milligrams/liter maximum |
| Fluoride | 2.0 milligrams/liter maximum |
(2) Make sure that you do not operate the starter more than five minutes cumulative.
CAUTION:
DO NOT MOTOR THE ENGINE MORE THAN THE LIMIT OR YOU CAN CAUSE DAMAGE TO THE STARTER (NOT CONTROLLED BY THE EEC).
(a) Three cycles: Two cycles with a maximum duration of two minutes for each cycle and one cycle with a maximum duration of one minute. (b) Between the cycles, there must be a period of 15 seconds minimum when the N2 speed is zero (0) rpm to allow for the starter rotor lubrication.
(c) After the three cycles, let the starter cool for 30 minutes before you try a new start or motoring.
(d) Do not engage the starter again with the engine motoring above 10 percent N2.
(3) Do the following wash procedures:
(a) Motor the engine with the starter until a minimum of 14 percent N2 is reached (Ref. AMM TASK 71-00-00-710-045).
(b) While you continue to motor the engine at a minimum of 14 percent N2, spray between 10 and 15 gallons (40 and 60 liters) of solution code 181 engine gas path cleaning Solution in two minutes into the low pressure compressor.
(c) Stop motoring engine and let it soak for a minimum of 10 minutes.
(d) After a minimum soaking time of 10 minutes, motor the engine with the starter until a minimum of 14 percent N2 is reached (Ref. AMM TASK 71-00-00-710-045).
(e) While you continue to motor the engine at a minimum of 14 percent N2, spray between 10 and 15 gallons (40 and 60 liters) of solution code 181 engine gas path cleaning Solution in two minutes into the low pressure compressor.
(f) Stop motoring the engine, and let it soak for a minimum of 10 minutes.
NOTE: If the wash fluid flow from the tail pipe is dirty, an added gas path wash will help. Multiple gas path washes are allowed to get a better or clear outflow.
(4) Change the wash fluid source for one that has an equivalent amount of potable water or water/alcohol mix. (5) Do the subsequent rinse procedures two cycles, and let the engine soak for 10 minutes minimum between the rinse procedure cycles:
(a) Motor the engine with the starter until a minimum of 14 percent N2 is reached (Ref. AMM TASK 71-00-00-710-045).
(b) While you continue to motor the engine at a minimum of 14 percent N2, spray between 10 and 15 gallons (40 and 60 liters) of potable water or potable water/alcohol mix in two minutes into the low pressure compressor.
(c) Stop motoring the engine and let it soak for a minimum of 10 minutes.
(6) After a minimum soaking time of 10 minutes, dry motor the engine with the starter at a minimum of 14 percent N2 (Ref. AMM TASK 71-00-00-710-045).
G. Connect the tubes and the VSV actuator.
PRE SBE 75-0081
(2) Remove the PLUG - BLANKING and connect the stage 12 (P3) make-up air tube to the off-take tube and TORQUE the tube connector to between 310 and 283 lbf.in (3.50 and 3.20 m.daN ):
(a) Safety with the safety cable (Material No.V02-274) .
END OF PRE SBE 75-0081
POST SBE 75-0081
(3) Remove the PLUG - BLANKING and connect the P4.9 air sense tube to the EEC to the fitting on the bottom of the turbine exhaust case and TORQUE the tube connector to between 177 and 159 lbf.in (2.00 and 1.80 m.daN ):
(a) Safety with the safety cable (Material No.V02-274) .
(4) Remove the PLUG - BLANKING and connect the PS3 sensing tube to the auto start probe and TORQUE the tube connector to between 177 and 159 lbf.in (2.00 and 1.80 m.daN ).
(a) Safety with the safety cable (Material No.V02-274) .
(5) Remove the spray ring or the water wash tube.
Subtask 72-00-00-865-053-A ** ON A/C NOT FOR ALL WARNING:
USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
(1) Remove the rig pin and move the stator vanes to the closed position and connect the VSV control rod to the actuator (Ref. AMM TASK 75-32-41-400-010). PRE SBE 75-0081
(2) Remove the PLUG - BLANKING and connect the stage 12 (P3) make-up air tube to the off-take tube and TORQUE the tube connector to between 310 and 283 lbf.in (3.50 and 3.20 m.daN )
: (a) Safety with the safety cable (Material No.V02-274) .
END OF PRE SBE 75-0081
POST SBE 75-0081
(3) Remove the PLUG - BLANKING and connect the P4.9 air sense tube to the EEC to the fitting on the bottom of the turbine exhaust case and TORQUE the tube connector to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )
: (a) Safety with the safety cable (Material No.V02-274) .
(4) Remove the PLUG - BLANKING and connect the PS3 sensing tube to the auto start probe and TORQUE the tube connector to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )
. (a) Safety with the safety cable (Material No.V02-274) .
(5) Remove the spray ring or the water wash tube.
H. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 72-00-00-100-052-A ** ON A/C NOT FOR ALL 5. Close-up| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | ENGINE/1 AND 2/IGN/SYS A | 1JH | A03 |
| FOR FIN: 1000EM1 (ENGINE1) | |||
| 121VU | ENGINE/IGN/ENG1/SYS B | 3JH1 | P41 |
| 121VU | ENGINE/IGN/ENG1/SYS A BAT | 2JH1 | P39 |
| FOR FIN: 1000EM2 (ENGINE2) | |||
| 121VU | ENGINE/IGN/ENG2/SYS B | 3JH2 | P42 |
| 121VU | ENGINE/IGN/ENG2/SYS A BAT | 2JH2 | P40 |
Subtask 72-00-00-410-133-A ** ON A/C NOT FOR ALL
A. Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(1) FOR [1000EM1] (ENGINE-1)
451AL, 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL, 462AR.
Subtask 72-00-00-440-072-A ** ON A/C NOT FOR ALL Subtask 72-00-00-410-134-A ** ON A/C NOT FOR ALL (1) FOR [1000EM1] (ENGINE-1)
451AL, 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL, 462AR.
C. Close Access
(1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL, 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL, 448AR.
(2) Remove the WARNING NOTICE(S).
Subtask 72-00-00-700-051-A ** ON A/C NOT FOR ALL (1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL, 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL, 448AR.
(2) Remove the WARNING NOTICE(S).
D. Dry Out the High Pressure Turbine
(1) Do the dry out procedure for the HPT (Ref. AMM TASK 71-00-00-700-013).
Subtask 72-00-00-710-054-A ** ON A/C NOT FOR ALL (1) Do the dry out procedure for the HPT (Ref. AMM TASK 71-00-00-700-013).
E. Operate the engine.
(1) Start the engine (Ref. AMM TASK 71-00-00-710-043) or (Ref. AMM TASK 71-00-00-710-047).
(3) Make sure that the OFF legend goes off when the engine bleed system operates.
(4) Operate the engine at idle power to keep the engine oil temperature at a minimum of 220 deg.F (104.44 deg.C) for no less than 20 minutes once the quoted oil temperature has been achieved.
(a) Remove the water content from oil. Use one of the procedures that follow:
1 Option 1: engine ground run to remove the water content from oil (Ref. AMM TASK 71-00-00-710-043) or (Ref. AMM TASK 71-00-00-710-047).
a Operate the engine at the power setting that is sufficient to keep the engine oil temperature at a minimum of 220 deg.F (104 deg.C) for no less than 20 minutes once that quoted oil temperature has been achieved.
b Toggle the anti icing control valve ON/OFF by pressing the anti ice selector switch ENG 1(2) from the flight deck overhead panel.
d Do an engine shutdown (Ref. AMM TASK 71-00-00-710-018).
(b) Option 2: drain the engine oil system and replenish.
1 Drain the engine oil system (Ref. AMM TASK 12-13-79-610-010) and fill the system with new oil (Ref. AMM TASK 12-13-79-610-011).
2 Do step 5.E. (4) again.
(c) Option 3: oil check for water content.
1 Get a 4 oz (113.40 g) sample of oil from the engine.
2 Do a Karl Fisher titration ASTMD-6304-04ae1 water analysis to find the water content of the oil.
3 If the water content is above 800 parts per million (ppm) by weight or by volume, drain the engine oil system (Ref. AMM TASK 12-13-79-610-010) and fill the system with new oil (Ref. AMM TASK 12-13-79-610-011).
4 Do step 5.E.(4) again.
(6) Operate the applicable engine bleed and pack 1(2) for 5 minutes to make sure that the Environmental Control System (ECS) is not contaminated.
(a) On the AIR COND panel 30VU, push the ENG 1(2) BLEED pushbutton switch to ON.
(b) Make sure that the OFF legend goes off when the engine bleed system operates.
(7) Check for evidence of cleaning agent or anti-freeze mixture odor/smoke in the cabin:
(a) If evidence is found, continue to operate the engine at idle until no odor/smoke remains in the cabin.
(1) Start the engine (Ref. AMM TASK 71-00-00-710-043) or (Ref. AMM TASK 71-00-00-710-047).
NOTE: Do not operate engine bleed before finishing the next step, otherwise the Environmental Control System (ECS) could be contaminated.
NOTE: Run the engine at idle for 10 minutes prior to advancing the throttle beyond idle power.
NOTE: If the engine ground run at idle power is successful, a further engine ground run will be required to functionally check the air conditioning packs. This can be done at operator convenience.
(2) On the AIR COND panel 30VU, push the ENG 1(2) BLEED pushbutton switch to ON. (3) Make sure that the OFF legend goes off when the engine bleed system operates.
(4) Operate the engine at idle power to keep the engine oil temperature at a minimum of 220 deg.F (104.44 deg.C) for no less than 20 minutes once the quoted oil temperature has been achieved.
NOTE: This can normally be achieved at idle with an OAT of more than 77 deg.F (25.00 deg.C).
(5) If the minimum oil temperature cannot be reached, do an engine shutdown and do the steps that follow: (a) Remove the water content from oil. Use one of the procedures that follow:
1 Option 1: engine ground run to remove the water content from oil (Ref. AMM TASK 71-00-00-710-043) or (Ref. AMM TASK 71-00-00-710-047).
a Operate the engine at the power setting that is sufficient to keep the engine oil temperature at a minimum of 220 deg.F (104 deg.C) for no less than 20 minutes once that quoted oil temperature has been achieved.
b Toggle the anti icing control valve ON/OFF by pressing the anti ice selector switch ENG 1(2) from the flight deck overhead panel.
NOTE: The selector switch will have the ON indicator illuminating in blue color.
c Keep the valve open (ON) while engine running in idle. Shut-off valve (OFF) before the engine shutdown. d Do an engine shutdown (Ref. AMM TASK 71-00-00-710-018).
(b) Option 2: drain the engine oil system and replenish.
1 Drain the engine oil system (Ref. AMM TASK 12-13-79-610-010) and fill the system with new oil (Ref. AMM TASK 12-13-79-610-011).
2 Do step 5.E. (4) again.
(c) Option 3: oil check for water content.
1 Get a 4 oz (113.40 g) sample of oil from the engine.
2 Do a Karl Fisher titration ASTMD-6304-04ae1 water analysis to find the water content of the oil.
3 If the water content is above 800 parts per million (ppm) by weight or by volume, drain the engine oil system (Ref. AMM TASK 12-13-79-610-010) and fill the system with new oil (Ref. AMM TASK 12-13-79-610-011).
4 Do step 5.E.(4) again.
(6) Operate the applicable engine bleed and pack 1(2) for 5 minutes to make sure that the Environmental Control System (ECS) is not contaminated.
(a) On the AIR COND panel 30VU, push the ENG 1(2) BLEED pushbutton switch to ON.
(b) Make sure that the OFF legend goes off when the engine bleed system operates.
(7) Check for evidence of cleaning agent or anti-freeze mixture odor/smoke in the cabin:
(a) If evidence is found, continue to operate the engine at idle until no odor/smoke remains in the cabin.
- If after 10 minutes engine running, continuous odor/smoke remains in the cabin, shutdown the engine (Ref. AMM TASK 71-00-00-710-018) and decontaminate the Environmental Control System (ECS) (Ref. AMM TASK 21-00-00-615-803).