W DOC AIRBUS | AMM A320F

Preservation for a Period of 30 to 365 Days [CFMB]


TASK 72-00-00-600-007-A
Preservation for a Period of 30 to 365 Days


WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 400
1. Reason for the Job
The preservation procedures are applied at the end of engine operation, before the engine goes back to the shop, and when the engine does not operate for a period of 30 to 365 days.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
CAP - BLANKING
No specific
AR
CART - PRESSURIZING, OIL
No specific
AR
CONTAINER 100 L(25 USGAL)
No specific
AR
CONTAINER 20L (5 USGAL)
No specific
AR
PLIERS - NOSE, SOFT, LONG
No specific
AR
PLUG - BLANKING
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
Torque wrench: range to between 55 and 45 lbf.in (0.62 and 0.51 m.daN ) T
No specific
Torque wrench: range to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) T
No specific
Torque wrench: range to between 110 and 90 lbf.in (1.24 and 1.02 m.daN ) T
No specific
Torque wrench: range to between 200 and 180 lbf.in (2.26 and 2.03 m.daN ) T
856A1480
1
FADEC-ENGINE PRESERVATION FALSE METERING VALVE SIGNAL
856A1717P01
1
PRESERVATION TOOL KIT
856A2930
AR
COVER FITTED BARE QEC ENGINE SHIPPING
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CP2098)
desicant bags with humidity indicator
(Material No.CP2160)
vapor barrier film
(Material No.CP2442)
engine oil
(Material No.CP5066)
fuel system preventative
(Material No.CP5067)
lubrication system corrosion preventive oil
(Material No.CP5075)
corrosion protective additive
(Material No.CP8001)
safety cable 0.032 in. (0.8 mm) dia.
(Material No.CP8002)
safety cable 0.032 in. (0.8 mm) dia.
(Material No.CP8006)
safety cable 0.032 in. (0.8 mm) dia.
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
70
PACKING
AIPC 73-11-10-01-160
60
PACKING
AIPC 73-11-10-01-165
90
PACKING
AIPC 73-11-10-01-290
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 12-13-79-610-002-A
Check oil level and replenish Check Pop Out Indicator of EMCD (Electrical Master Chip Detector)
TASK 12-13-79-610-002-A-01
Check oil level and replenish (Pressure Filling)
TASK 12-13-79-610-003-C
Oil Tank Draining
TASK 12-13-79-610-004-C
Draining of the Accessory Drive Section
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
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 31-60-00-860-001-A
EIS Start Procedure
TASK 70-21-00-918-002-A
Seals (Preformed Packings and O-rings) and Gaskets
TASK 70-22-00-911-002-A
Locking Procedures
TASK 71-00-00-710-001-B
Dry Motoring Check
TASK 71-00-00-710-002-B
Wet Motoring Check
TASK 72-00-00-600-811-A
Desiccant Bags Inspection Procedure
TASK 73-11-10-000-004-A
Removal of the Fuel Filter Element
TASK 73-11-10-400-004-A
Installation of the Fuel Filter Element
TASK 75-31-20-820-001-A
Set the Variable Bleed Valve Assembly to the Closed position
TASK 78-31-00-710-042-A
Operational Test of the Thrust Reverser System
TASK 78-31-00-710-042-A
Operational Test of the Thrust Reverser System
TASK 78-31-00-710-043-A
Operational Test of the Thrust Reverser without CFDS - Engine Not Running
TASK 78-31-00-710-043-A
Operational Test of the Thrust Reverser without CFDS - Engine Not Running
TASK 78-31-00-710-043-A-01
Operational Test of the Thrust Reverser without CFDS - Engine Running
3. Job Set-up
Subtask 72-00-00-860-135-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
   (2) Make sure that the ENG/MASTER 1(2) control switch is set to OFF.
   (3) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
   (4) Make sure that on SD FUEL page, the LP valve is shown closed.
Subtask 72-00-00-865-054-A ** ON A/C NOT FOR ALL
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VUFUEL/LP VALVE/MOT1/ENG11QGA08
121VUFUEL/LP VALVE/MOT2/ENG13QGM25
FOR FIN: 1000EM2 (ENGINE2)
49VUFUEL/LP VALVE/MOT1/ENG22QGA09
121VUFUEL/LP VALVE/MOT2/ENG24QGM26
4. Procedure
Subtask 72-00-00-620-059-A ** ON A/C NOT FOR ALL
A. Preservation for a Period of 30 to 365 Days (Alternative Method Available)
CAUTION: IF ENGINE WAS FERRIED OR SUBJECTED TO AN IN-FLIGHT SHUTDOWN (IFSD), ENGINE MUST BE "DRIED OUT" AND RELUBRICATED WITHIN 24 HOURS PER DRY-OUT PROCEDURE OF THIS SECTION.
CAUTION: UNDER NO CIRCUMSTANCES SHALL PRESERVATIVE OIL OR EQUIVALENT BE SPRAYED INTO THE ENGINE INLET, CORE COMPRESSOR OR TURBINE, OR ENGINE EXHAUST. DIRT PARTICLES DEPOSITED ON THE WETTED BLADES AND VANES MAY ADVERSELY AFFECT ENGINE PERFORMANCE DURING SUBSEQUENT OPERATION.
   (1) Operable Engine Preservation.
CAUTION: DO NOT USE SILICONE BASE OILS IN THE FUEL SYSTEM. DAMAGE TO THE ENGINE CAN BE CAUSED.
     (a) Drain the oil tank (Ref. AMM TASK 12-13-79-610-003).
     (b) Do the servicing of the oil tank with a mixture of approved engine oil (Material No.CP2442) and seven percent (by volume) corrosion protective additive (Material No.CP5075) or with a mixture of approved engine oil (Material No.CP2442) and five percent (by volume) lubrication system corrosion preventive oil (Material No.CP5067) (Ref. AMM TASK 12-13-79-610-002).
A minimum of 19 l (5.0 USgal) of oil is necessary to do the motoring procedure of the engine during preservation.
     (c) When you do the engine motoring procedure without the accessories installed, make sure that the items that follow are installed.
       1 Pad covers and gaskets on pads where accessories are normally installed.
       2 Caps on the pad cavity drains to prevent the loss of engine oil.
     (d) Drain the fuel system and disconnect the fuel pump inlet tube.
       1 Put a CONTAINER 20L (5 USGAL) under the drain plug of the fuel filter housing.
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL SAFETYWIRE. EACH TIME YOU CUT SAFETYWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE SAFETYWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
       2 Cut and remove the safetywire from the drain plug (80) of the fuel filter cover.
       3 Remove the drain plug (80) of the fuel filter cover and let the fuel to drain from the filter.
       4 Remove and discard the packing (90) from the drain plug.
WARNING: USE PERSONAL PROTECTION EQUIPMENT. USE THE ENGINE OIL IN A WELL-VENTILATED AREA. ENGINE OIL IS TOXIC.
       5 Lubricate a new AIPC 73-11-10-01-290 PACKING (90) with engine oil (Material No.CP2442) and install the packing (90) on the drain plug (80).
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL SAFETYWIRE. EACH TIME YOU CUT SAFETYWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE SAFETYWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
       6 Install and TORQUE the drain plug (80) to between 55 and 45 lbf.in (0.62 and 0.51 m.daN ) T. Safety with CP8001safety cable 0.032 in. (0.8 mm) dia. or CP8002safety cable 0.032 in. (0.8 mm) dia. (Ref. AMM TASK 70-22-00-911-002).
       7 Remove the four bolts (10) and the four washers (20) which attach the fuel inlet tube (40) to the duct of the main fuel supply hose (50). Let the fuel drain into the container.
       8 Keep the gasket (30).
       9 Cap the main fuel supply hose (50).
     (e) Temporarily install a locally manufactured line to the fuel pump inlet tube. Use the line to supply oil fuel system preventative (Material No.CP5066) at 50 psi (3.4 bar) maximum pressure.
     (f) Disconnection of the line:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
       1 Disconnect the line from the PCR port on the Hydromechanical Unit (HMU).
     (g) Install a temporary hose drain line 118 in. (3.00 m) long from the HMU PCR port and put the hose to drain in a CONTAINER 100 L(25 USGAL) capacity. Attach the hose to prevent spillage.
  • The drain line is to be locally manufactured with a coupling tube welding P/N J382P06 (0.5625-18 diameter UNJF-3A Threads/material AMS 5645).
NOTE: You can approach CFM to order the coupling tube welding P/N J382P06.
     (h) Do a dry-motoring check for 30 seconds (Ref. AMM TASK 71-00-00-710-001).
       1 Stop the engine motoring. Let the engine coast down.
     (i) Remove the temporary drain line from the PCR port on the HMU.
     (j) Tighten the coupling nut as follows:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
       1 Install the PCR line to the PCR port.
         a TORQUE coupling nut to between 200 and 180 lbf.in (2.26 and 2.03 m.daN ) T.
     (k) Do a wet-motoring check for five seconds (
Ref. AMM TASK 71-00-00-710-002):
       1 In order to maintain the LP Fuel Shut-off valve closed, make sure that the circuit breakers 1QG (2QG) and 3QG (4QG) stay pulled during wet motoring.
       2 Move the ENG MASTER control switch to ON and motor for five seconds or until you see sprayed preservation fluid come out of the engine exhaust nozzle.
       3 Move the ENG MASTER control switch to OFF.
       4 Dry motor the engine for two minutes (Ref. AMM TASK 71-00-00-710-001).
NOTE: A minimum of 20 quarts (19 liters) of fuel system preventative (Material No.CP5066) is necessary for preservation motoring.
     (l) Stop the engine motoring. Let the engine coast down.
     (m) Do a full thrust reverser cycle (Ref. AMM TASK 78-31-00-710-042) or (Ref. AMM TASK 78-31-00-710-043).
     (n) Turn the fan rotor as follows:
WARNING: BE CAREFUL WHEN YOU TURN THE FAN ROTOR MANUALLY. USE HEAVY PROTECTIVE GLOVES AND MAKE SURE THAT YOU CANNOT SLIP. IF YOU DO NOT OBEY THESE INSTRUCTIONS, INJURY CAN OCCUR.
       1 Pull the fan rotor through a minimum of two complete turns if it did not turn during motoring.
     (o) Remove the temporary oil supply line from the fuel pump inlet tube.
     (p) Make sure that the gasket (30) is clean and serviceable (Ref. AMM TASK 70-21-00-918-002). Replace it as necessary.
     (q) Remove the cap from the open end of the main fuel supply hose (50) and install the four washers (20) and the four bolts (10) which attach the fuel inlet tube (40) to the duct of the main fuel supply hose (50).
     (r) TORQUE the bolts (10) to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) T.
     (s) Make sure that Variable Bleed Valve (VBV) doors are closed (
Ref. AMM TASK 75-31-20-820-001).
     (t) Install vapor barrier film (Material No.CP2160) on all open areas.
     (u) Install CAP - BLANKING or PLUG - BLANKING on all open engine areas, such as struts, pipes and accessory pads.
     (v) Put desicant bags with humidity indicator (Material No.CP2098) and humidity indicator card in inlet and exhausts of the engine to protect it from moisture as follows:
NOTE: desicant bags with humidity indicator (Material No.CP2098) must be inspected/replaced at regular intervals depending on weather conditions. Make sure they are accessible for inspection/replacement while disturbing a minimum amount of protective material. For inspection's instructions, do this task (Ref. AMM TASK 72-00-00-600-811).
       1 Mark the date on the humidity indicator tags.
       2 Attach the desicant bags with humidity indicator (Material No.CP2098) in inlet and exhausts of the engine.
         a Make sure they are not in contact with the engine hardware.
       3 If necessary, use vapor barrier film (Material No.CP2160) to locally protect the engine hardware.
     (w) Seal inlet and exhausts of the engine with vapor barrier film (Material No.CP2160) .
     (x) Put the adequate protective cover that follows:
       1 If the engine is stored off-wing, cover the full engine with 856A2930 COVER FITTED BARE QEC ENGINE SHIPPING (856A2930G01/GO2). Make sure it is tight fitted to the engine.
       2 If the engine is stored on-wing, put a waterproof cover over the whole powerplant. Make sure it is tight fitted to the powerplant. If not possible, as an alternative, cover the entrance to fan inlet cowl and exit openings of exhaust nozzle and exhaust plug.
       3 If the engine inlet and exhaust covers are not available, use barrier material compliant with specification MIL-PRF-121, polyethylene film ASTM D2103 or equivalent 6 mil or thicker material, and tape ASTM D5486.
         a When you apply plastic sheeting and tape to the exhaust, make sure that the drain holes or tubes are clear and not covered.
         b When you use plastic sheeting to cover the inlet, do the steps that follow:
  • Use a lint-free cloth and solvent (spec BMS11-9), to wipe the area where the tape is used.
  • Cut an approximate inlet diameter circle from plastic sheet. Put tape on the plastic circle on FWD edge of the acoustic panel behind the lipskin. Apply with at least 3 layers of tape with overlap around the perimeter of the inlet acoustic panel.
  • Do not place plastic or tape over the lipskin or cover the lipskin with plastic.
  • Apply the tape across the diameter of the circular sheet to reduce the pillowing of the plastic sheeting.
     (y) Put a tag on the engine to show the engine is preserved.
   (2) Non-operable engine preservation.
     (a) Drain the fuel system as follows. Collect the fuel in a satisfactory container.
       1 Disconnect the filter upstream (inlet) pressure sensing tube from the fuel filter housing (this is the lower sensing tube connected to the fuel filter differential pressure switch at its other end). Let the fuel drain from the disconnected port.
       2 Disconnect the fuel supply line.
         a Install a cap on the fuel pump inlet tube.
       3 Remove the fuel filter drain plug. Let the fuel drain from the filter.
       4 Remove the fuel pump lube flow screen. Let the fuel drain from the pump.
       5 Remove the fuel filter element. Discard the element (Ref. AMM TASK 73-11-10-000-004).
       6 Remove and discard the preformed packing (60) and the preformed packing (70) from the fuel pump lube flow screen.
F Fuel Pump ** ON A/C NOT FOR ALL
     (b) Preserve the engine as follows:
CAUTION: DO NOT USE SILICONE BASE OILS IN THE FUEL SYSTEM. DAMAGE TO THE ENGINE CAN BE CAUSED.
       1 Remove the PBP port plug from the fuel pump. Connect an CART - PRESSURIZING, OIL that contains fuel system preventative (Material No.CP5066) to the boost discharge pressure (PBP) port on the fuel pump.
         a TORQUE the connector to between 55 and 45 lbf.in (0.62 and 0.51 m.daN ) T.
       2 Install the fuel pump lube flow screen as follows:
F Fuel Pump ** ON A/C NOT FOR ALL
WARNING: USE PERSONAL PROTECTION EQUIPMENT. USE THE ENGINE OIL IN A WELL-VENTILATED AREA. ENGINE OIL IS TOXIC.
         a Lightly lubricate the new AIPC 73-11-10-01-165 PACKING (60) and the new AIPC 73-11-10-01-160 PACKING (70) with engine oil (Material No.CP2442) .
         b Install the preformed packing (60) and preformed packing (70) on the fuel pump lube flow screen.
         c Install the fuel pump lube flow screen to the fuel pump.
  • TORQUE the fuel pump lube flow screen to between 110 and 90 lbf.in (1.24 and 1.02 m.daN ) T.
         d Safety the fuel pump lube flow screen as follows:
  • Safety the fuel pump lube flow screen to the fuel pump with CP8001safety wire 0.032 in. (0.8 mm) dia. or CP8002safety wire 0.032 in. (0.8 mm) dia. or CP8006safety cable 0.032 in. (0.8 mm) dia..
       3 Pump the filtered (10 micron) oil into the fuel pump until it flows out of the fuel filter inlet pressure port and filter housing. Continue to pump the oil into the fuel pump until the oil that flows out does not have fuel mixed with it.
       4 Connect the tube to the fuel filter inlet pressure port.
         a TORQUE the coupling nut to between 55 and 45 lbf.in (0.62 and 0.51 m.daN )
T.
       5 Install a new fuel filter element (
Ref. AMM TASK 73-11-10-400-004).
       6 Remove the fuel pump discharge (PHP) port plug.
       7 Pump the filtered (10 micron) oil into the PBP port until it flows out of the PHP port. Continue to pump the oil into the PBP port until the oil that flows out does not have fuel mixed with it.
       8 Disconnect the cart from the PBP port.
       9 Install the PBP port plug.
         a TORQUE the plug to between 55 and 45 lbf.in (0.62 and 0.51 m.daN ) T.
       10 Connect the cart to the fuel pump discharge (PHP) port.
         a TORQUE the connector to between 55 and 45 lbf.in (0.62 and 0.51 m.daN )
T.
       11 Disconnection of the line:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
         a Disconnect the line (hose) from the HMU PCR port.
       12 Install a temporary line to the PCR port and let it drain into the container.
       13 Disconnect the HJ8 electrical harness from the receptacle connector identified "CHANNEL B" on the HMU. Use PLIERS - NOSE, SOFT, LONG, if necessary.
       14 Connect the
856A1480 FADEC-ENGINE PRESERVATION FALSE METERING VALVE SIGNAL (856A1480G01) to the HMU receptacle identified "CHANNEL B" in order to open the Fuel Metering Valve (FMV) in the HMU and allow the preservation oil to flow to the fuel nozzles.
       15 Pump the filtered (10 micron) oil through the PHP port until it flows out of the PCR temporary line. Continue to pump oil through the PHP port until the oil that flows out does not have fuel mixed with it.
       16 Remove TOOL 856A1480 FADEC-ENGINE PRESERVATION FALSE METERING VALVE SIGNAL (856A1480G01) from the HMU receptacle connector, CHANNEL B.
       17 Remove the temporary drain line from the PCR port of the HMU.
       18 Tighten the coupling nut as follows:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
         a Connect the PCR line to the HMU PCR port.
  • TORQUE the coupling nut to between 200 and 180 lbf.in (2.26 and 2.03 m.daN ) T.
       19 Connect the HJ8 electrical harness to the HMU receptacle connector identified "CHANNEL B".
       20 Disconnection of the hose:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
         a Disconnect the Low Pressure Turbine Clearance Control (LPTCC) fuel supply hose from the HMU.
       21 Install a temporary line to the LPTCC port of the HMU and let it drain into the container. Pump filtered (10 micron) oil through the PHP port until it flows out of the LPTCC temporary line. Continue to pump oil through the PHP port until the oil that flows out does not have fuel mixed with it.
       22 Disconnect the cart from the PHP port.
       23 Install the PHP port plug on the fuel pump.
         a TORQUE plug to between 55 and 45 lbf.in (0.62 and 0.51 m.daN )
T.
       24 Tighten the coupling nut as follows:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
         a Remove the temporary line. Connect the LPTCC fuel supply hose to the HMU.
       25 Install caps on all fuel system ports.
         a Make sure that all lines are connected and do not leak.
     (c) Close the VBV doors (
Ref. AMM TASK 75-31-20-820-001).
     (d) Install vapor barrier film (Material No.CP2160) over the VBV bleed grills.
     (e) Drain the engine oil from the areas that follow:
       1 Oil tank (Ref. AMM TASK 12-13-79-610-003).
       2 Accessory gearbox (AGB) (Ref. AMM TASK 12-13-79-610-004).
       3 Transfer gearbox (Ref. AMM TASK 12-13-79-610-004).
       4 Supply filter on lubrication unit.
       5 The oil supply lines between the lubrication unit and the sumps and gearboxes.
       6 The scavenge oil lines between the sumps and gearboxes and the lubrication unit.
       7 Drain the oil from the oil supply or scavenge lines that have caps installed and that do not connect back to the lubrication unit.
         a Install the caps after the oil has been drained.
     (f) Preserve the lubrication system as follows:
       1 Pump a mixture of approved engine oil (Material No.CP2442) and seven percent (by volume) corrosion protective additive (Material No.CP5075) or a mixture of approved engine oil (Material No.CP2442) and five percent (by volume) lubrication system corrosion preventive oil (Material No.CP5067) into the areas that follow. Use a cart or hand pump equipped with a volume measuring device and pump the oil at a maximum pressure of 50 psi (3.4 bar).
NOTE: If possible, while you pump the oil in, turn the fan and core rotors with your hand and continue to turn for one minute after all the oil is added.
-----------------------------------------------------------------------------
! LOCATION ! OIL QUANTITY !
!------------------------------------------!--------------------------------!
! Oil supply to the AGB ! 6 qt (6 liters) !
!------------------------------------------!--------------------------------!
! Oil supply to the transfer gearbox ! 1 qt (1 liter) !
!------------------------------------------!--------------------------------!
! Oil supply to the forward sump ! 2 qt (2 liters) !
!------------------------------------------!--------------------------------!
! Oil supply to the aft sump ! 1 qt (1 liter) !
!------------------------------------------!--------------------------------!
! Oil tank ! 18 qt (17 liters) !
!------------------------------------------!--------------------------------!
! Lube and scavenge pumps ! Wet parts !
! (Oil supply and scavenge discharge) ! !
-----------------------------------------------------------------------------

       2 Install caps on all of the lube system ports, pipes, drains, vents, etc.
     (g) Install vapor barrier film (Material No.CP2160) on all of the open engine sections.
     (h) Put desicant bags with humidity indicator (Material No.CP2098) and humidity indicator card in inlet and exhausts of the engine to protect it from moisture as follows:
NOTE: desicant bags with humidity indicator (Material No.CP2098) must be inspected/replaced at regular intervals depending on weather conditions. Make sure they are accessible for inspection/replacement while disturbing a minimum amount of protective material. For inspection's instructions, do this task (Ref. AMM TASK 72-00-00-600-811).
       1 Mark the date on the humidity indicator tags.
       2 Attach the desicant bags with humidity indicator (Material No.CP2098) in inlet and exhausts of the engine.
         a Make sure they are not in contact with the engine hardware.
       3 If necessary, use vapor barrier film (Material No.CP2160) to locally protect the engine hardware.
     (i) Seal inlet and exhausts of the engine with vapor barrier film (Material No.CP2160) .
     (j) Install a tag on each section of the engine to show that the lubrication and fuel system is preserved.
     (k) Put the adequate protective cover that follows:
       1 If the engine is stored off-wing, cover the full engine with 856A2930 COVER FITTED BARE QEC ENGINE SHIPPING (856A2782G01/G02).
         a Make sure it is tight fitted to the engine.
       2 If the engine is stored on-wing, put a waterproof cover over the whole powerplant. Make sure it is tight fitted to the powerplant. If not possible, as an alternative, cover the entrance to fan inlet cowl and exit openings of exhaust nozzle and exhaust plug.
       3 If the engine inlet and exhaust covers are not available, use barrier material compliant with specification MIL-PRF-121, polyethylene film ASTM D2103 or equivalent 6 mil or thicker material, and tape ASTM D5486.
         a When you apply plastic sheeting and tape to the exhaust, make sure that the drain holes or tubes are clear and not covered.
         b When you use plastic sheeting to cover the inlet, do the steps that follow:
  • Use a lint-free cloth and solvent (spec BMS11-9), to wipe the area where the tape is used.
  • Cut an approximate inlet diameter circle from plastic sheet. Put tape on the plastic circle on FWD edge of the acoustic panel behind the lipskin. Apply with at least 3 layers of tape with overlap around the perimeter of the inlet acoustic panel.
  • Do not place plastic or tape over the lipskin or cover the lipskin with plastic.
  • Apply the tape across the diameter of the circular sheet to reduce the pillowing of the plastic sheeting.
Subtask 72-00-00-620-072-A ** ON A/C NOT FOR ALL
B. Alternative Method, Preservation for a Period of 30 to 365 Days with Preservation Tool KIT 856A1717P01
CAUTION: IF ENGINE WAS FERRIED OR SUBJECTED TO AN IN-FLIGHT SHUTDOWN (IFSD), ENGINE MUST BE "DRIED OUT" AND RELUBRICATED WITHIN 24 HOURS PER DRY-OUT PROCEDURE OF THIS SECTION.
CAUTION: UNDER NO CIRCUMSTANCES SHALL PRESERVATIVE OIL OR EQUIVALENT BE SPRAYED INTO THE ENGINE INLET, CORE COMPRESSOR OR TURBINE, OR ENGINE EXHAUST. DIRT PARTICLES DEPOSITED ON THE WETTED BLADES AND VANES MAY ADVERSELY AFFECT ENGINE PERFORMANCE DURING SUBSEQUENT OPERATION.
   (1) Operable Engine Preservation.
CAUTION: DO NOT USE SILICONE BASE OILS IN THE FUEL SYSTEM. DAMAGE TO THE ENGINE CAN BE CAUSED.
     (a) Drain the oil tank (Ref. AMM TASK 12-13-79-610-003).
     (b) Do the servicing of the oil tank with a mixture of approved engine oil (Material No.CP2442) and seven percent (by volume) corrosion protective additive (Material No.CP5075) or with a mixture of approved engine oil (Material No.CP2442) and five percent (by volume) lubrication system corrosion preventive oil (Material No.CP5067) (Ref. AMM TASK 12-13-79-610-002).
A minimum of 19 l (5.0 USgal) of oil is necessary to do the motoring procedure of the engine during preservation.
     (c) When you do the engine motoring procedure without the accessories installed, make sure that the items that follow are installed.
       1 Pad covers and gaskets on pads where accessories are normally installed.
       2 Caps on the pad cavity drains to prevent the loss of engine oil.
     (d) Drain the fuel system and disconnect the fuel pump inlet tube.
       1 Put a Tank Gallon Gravity Feed IAS-2000-03 from 856A1717P01 PRESERVATION TOOL KIT or standard tool under the drain plug of the fuel filter housing.
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL SAFETYWIRE. EACH TIME YOU CUT SAFETYWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE SAFETYWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
       2 Cut and remove the safetywire from the drain plug (80) of the fuel filter cover.
       3 Remove the drain plug (80) of the fuel filter cover and let the fuel to drain from the filter.
       4 Remove and discard the packing (90) from the drain plug.
WARNING: USE PERSONAL PROTECTION EQUIPMENT. USE THE ENGINE OIL IN A WELL-VENTILATED AREA. ENGINE OIL IS TOXIC.
       5 Lubricate a new AIPC 73-11-10-01-290 PACKING (90) with engine oil (Material No.CP2442) and install the packing (90) on the drain plug (80).
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL SAFETYWIRE. EACH TIME YOU CUT SAFETYWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE SAFETYWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
       6 Install and TORQUE the drain plug (80) to between 55 and 45 lbf.in (0.62 and 0.51 m.daN ) T. Safety with CP8001safety wire 0.032 in. (0.8 mm) dia. or CP8002safety wire 0.032 in. (0.8 mm) dia. (Ref. AMM TASK 70-22-00-911-002).
       7 Removal of the safety wire.
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL SAFETYWIRE. EACH TIME YOU CUT SAFETYWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE SAFETYWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
         a Cut safety wire from the four bolts (10) and remove it from the bolts.
       8 Remove the four bolts and the four washers (20) which attach the fuel inlet tube (40) to the duct of the main fuel supply hose (50). Let the fuel drain into the container.
       9 Keep the gasket (30).
NOTE: Bolts (10) will be used to attach the fuel oil adapter from 856A1717P01 PRESERVATION TOOL KIT.
       10 Cap the open end of the main fuel supply hose (50).
     (e) Install Supply Hose IAS-2200-01 from 856A1717P01 PRESERVATION TOOL KIT or standard tool to the fuel pump inlet tube. Use the line to supply oil fuel system preventative (Material No.CP5066) at 50 psi (3.4 bar) maximum pressure.
     (f) Disconnection of the line:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
       1 Disconnect the line from the PCR port on the HMU.
NOTE: When you install the adapter with a hose connected to the oil service tank, the tank must be higher than the attach point for gravity feed.
     (g) Install a temporary Drain Hose IAS-2270-01 from 856A1717P01 PRESERVATION TOOL KIT or standard tool 118 in. (3.00 m) long from the HMU PCR port and put the hose to drain in a CONTAINER 100 L(25 USGAL) capacity. Attach the Drain Hose IAS-2270-01 from 856A1717P01 PRESERVATION TOOL KIT or standard tool to prevent spillage.
  • The Drain Hose IAS-2270-01 from 856A1717P01 PRESERVATION TOOL KIT or standard tool locally manufactured with a coupling tube welding P/N J382P06 (0.5625-18 diameter UNJF-3A Threads/material AMS 5645).
NOTE: You can approach CFM to order the coupling tube welding P/N J382P06.
     (h) Dry-motoring:
       1 Do a dry-motoring check for 30 seconds (Ref. AMM TASK 71-00-00-710-001).
         a Stop the engine motoring. Let the engine coast down.
       2 If engine is off wing, do an alternative procedure as follows:
         a Remove the clamp of the starter air duct.
         b Remove the starter air duct.
         c Install the adapter of the Manual Pneumatic Start Assembly PN IAS-2110-04.
         d Install the clamp of the starter air duct on the manual pneumatic start assembly PN IAS-2110-04.
         e Install a huffer cart to the manual pneumatic start assembly.
         f Motor the engine with air pressure from the huffer cart.
     (i) Remove the Drain Hose IAS-2270-01 from 856A1717P01 PRESERVATION TOOL KIT or standard tool temporary from the PCR port on the HMU.
     (j) Tighten the coupling nut as follows:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
       1 Install the PCR line to the PCR port.
         a TORQUE coupling nut to between 200 and 180 lbf.in (2.26 and 2.03 m.daN ) T.
     (k) Do a wet-motoring check for five seconds (
Ref. AMM TASK 71-00-00-710-002):
       1 In order to maintain the LP Fuel Shut-off valve closed, make sure that the circuit breakers 1QG (2QG) and 3QG (4QG) stay pulled during wet motoring.
       2 Move the ENG MASTER control switch to ON and motor for 5 seconds or until you see sprayed preservation fluid come out of the engine exhaust nozzle.
       3 Move the ENG MASTER control switch to OFF.
       4 Dry motor the engine for two minutes (Ref. AMM TASK 71-00-00-710-001).
NOTE: A minimum of 20 quarts (19 liters) of fuel system preventative (Material No.CP5066) is necessary for preservation motoring.
     (l) Stop the engine motoring. Let the engine coast down.
     (m) Do a full thrust reverser cycle (Ref. AMM TASK 78-31-00-710-042) or (Ref. AMM TASK 78-31-00-710-043).
     (n) Turn the fan rotor as follows:
WARNING: BE CAREFUL WHEN YOU TURN THE FAN ROTOR MANUALLY. USE HEAVY PROTECTIVE GLOVES AND MAKE SURE THAT YOU CANNOT SLIP. IF YOU DO NOT OBEY THESE INSTRUCTIONS, INJURY CAN OCCUR.
       1 Pull the fan rotor through a minimum of two complete turns if it did not turn during motoring.
     (o) Remove the temporary oil supply line from the fuel pump inlet tube.
     (p) Make sure that the gasket (30) is clean and serviceable (Ref. AMM TASK 70-21-00-918-002). Replace it as necessary.
     (q) Remove the cap of the open end of the main fuel supply hose (50) and install the four washers (20) and the four bolts (10) which attach the fuel inlet tube (40) to the duct of the main fuel supply hose (50).
     (r) TORQUE the bolts (10) to between 90 and 81 lbf.in (1.02 and 0.92 m.daN ) T.
     (s) Make sure that VBV doors are closed (
Ref. AMM TASK 75-31-20-820-001).
     (t) Install vapor barrier film (Material No.CP2160) on all open areas.
     (u) Install CAP - BLANKING or PLUG - BLANKING on all open engine areas, such as struts, pipes and accessory pads.
     (v) Put desicant bags with humidity indicator (Material No.CP2098) and humidity indicator cards on either side of the engine. Do not allow the desiccant to touch the engine surfaces.
NOTE: Replace the desiccant at regular times based on atmospheric and weather conditions. Put the desiccant in the engine so that it will give sufficient protection. Install it so that you will have to move a minimum quantity of engine protective covers.
     (w) Put the adequate protective covers that follows:
       1 If the engine is stored off-wing, cover the full engine with 856A2930 COVER FITTED BARE QEC ENGINE SHIPPING (856A2930G01/GO2). Make sure it is tight fitted to the engine.
       2 If the engine is stored on-wing, put a waterproof cover over the whole powerplant. Make sure it is tight fitted to the powerplant. If not possible, as an alternative, cover the entrance to fan inlet cowl and exit openings of exhaust nozzle and exhaust plug.
If the engine inlet and exhaust covers are not available, use barrier material compliant with specification MIL-PRF-121, polyethylene film ASTM D2103 or equivalent 6 mil or thicker material, and tape ASTM D5486.
         a When you apply plastic sheeting and tape to the exhaust, make sure that the drain holes or tubes are clear and not covered.
         b When you use plastic sheeting to cover the inlet, do the steps that follow:
  • Use a lint-free cloth and solvent (spec BMS11-9), to wipe the area where the tape is used.
  • Cut an approximate inlet diameter circle from plastic sheet. Put tape on the plastic circle on FWD edge of the acoustic panel behind the lipskin. Apply with at least three layers of tape with overlap around the perimeter of the inlet acoustic panel.
  • Do not place plastic or tape over the lipskin or cover the lipskin with plastic.
  • Apply the tape across the diameter of the circular sheet to reduce the pillowing of the plastic sheeting.
     (x) Put a tag on the engine to show the engine is preserved.
   (2) Non-operable Engine Preservation.
     (a) Drain the fuel system as follows. Collect the fuel in a satisfactory container.
       1 Disconnect the filter upstream (inlet) pressure sensing tube from the fuel filter housing (this is the lower sensing tube connected to the fuel filter differential pressure switch at its other end). Let the fuel drain from the disconnected port.
       2 Disconnect the fuel supply line.
         a Install a cap on the fuel pump inlet tube.
       3 Remove the fuel filter drain plug. Let the fuel drain from the filter.
       4 Remove the fuel pump lube flow screen. Let the fuel drain from the pump.
       5 Remove the fuel filter element. Discard the element (Ref. AMM TASK 73-11-10-000-004).
       6 Remove and discard the preformed packing (60) and the preformed packing (70) from the fuel pump lube flow screen.
F Fuel Pump ** ON A/C NOT FOR ALL
     (b) Preserve the engine as follows:
CAUTION: DO NOT USE SILICONE BASE OILS IN THE FUEL SYSTEM. DAMAGE TO THE ENGINE CAN BE CAUSED.
       1 Remove the PBP port plug from the fuel pump. Connect an CART - PRESSURIZING, OIL that contains fuel system preventative (Material No.CP5066) to the boost discharge pressure (PBP) port on the fuel pump.
         a TORQUE the connector to between 55 and 45 lbf.in (0.62 and 0.51 m.daN ) T.
       2 Install the fuel pump lube flow screen as follows:
F Fuel Pump ** ON A/C NOT FOR ALL
WARNING: USE PERSONAL PROTECTION EQUIPMENT. USE THE ENGINE OIL IN A WELL-VENTILATED AREA. ENGINE OIL IS TOXIC.
         a Lightly lubricate the new AIPC 73-11-10-01-165 PACKING (60) and the new AIPC 73-11-10-01-160 PACKING (70) with engine oil (Material No.CP2442) .
         b Install the preformed packing (60) and the preformed packing (70) on the fuel pump lube flow screen.
         c Install the fuel pump lube flow screen to the fuel pump.
  • TORQUE the fuel pump lube flow screen to between 110 and 90 lbf.in (1.24 and 1.02 m.daN ) T.
         d Safety the fuel pump lube flow screen as follows:
  • Safety the fuel pump lube flow screen to the fuel pump with CP8001safety cable 0.032 in. (0.8 mm) dia. or CP8002safety cable 0.032 in. (0.8 mm) dia. or CP8006safety cable 0.032 in. (0.8 mm) dia..
       3 Pump the filtered (10 micron) oil into the fuel pump until it flows out of the fuel filter inlet pressure port and filter housing. Continue to pump the oil into the fuel pump until the oil that flows out does not have fuel mixed with it.
       4 Connect the tube to the fuel filter inlet pressure port.
         a TORQUE the coupling nut to between 55 and 45 lbf.in (0.62 and 0.51 m.daN )
T.
       5 Install a new fuel filter element (
Ref. AMM TASK 73-11-10-400-004).
       6 Remove the fuel pump discharge (PHP) port plug.
       7 Pump the filtered (10 micron) oil into the PBP port until it flows out of the PHP port. Continue to pump the oil into the PBP port until the oil that flows out does not have fuel mixed with it.
       8 Disconnect the cart from the PBP port.
       9 Install the PBP port plug.
         a TORQUE the plug to between 55 and 45 lbf.in (0.62 and 0.51 m.daN ) T.
       10 Connect the cart to the fuel pump discharge (PHP) port.
         a TORQUE the connector to between 55 and 45 lbf.in (0.62 and 0.51 m.daN )
T.
       11 Disconnection of the line:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
         a Disconnect the line (hose) from the HMU PCR port.
       12 Install a Drain Hose IAS-2270-01 from
856A1717P01 PRESERVATION TOOL KIT or standard tool to the PCR port and let it drain into the container.
       13 Disconnect the HJ8 electrical harness from the receptacle connector identified "CHANNEL B" on the HMU. Use PLIERS - NOSE, SOFT, LONG, if necessary.
       14 Connect the 856A1480 FADEC-ENGINE PRESERVATION FALSE METERING VALVE SIGNAL (856A1480G01) to the HMU receptacle identified "CHANNEL B" in order to open the Fuel Metering Valve (FMV) in the HMU and allow the preservation oil to flow to the fuel nozzles.
       15 Pump the filtered (10 micron) oil through the PHP port until it flows out of the PCR temporary line. Continue to pump oil through the PHP port until the oil that flows out does not have fuel mixed with it.
       16 Remove TOOL 856A1480 FADEC-ENGINE PRESERVATION FALSE METERING VALVE SIGNAL (856A1480G01) from the HMU receptacle connector, CHANNEL B.
       17 Remove the temporary drain line from the PCR port of the HMU.
       18 Tighten the coupling nut as follows:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
         a Connect the PCR line to the HMU PCR port.
  • TORQUE the coupling nut to between 200 and 180 lbf.in (2.26 and 2.03 m.daN ) T.
       19 Connect the HJ8 electrical harness to the HMU receptacle connector identified "CHANNEL B".
       20 Disconnection of the hose:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
         a Disconnect the LPTCC fuel supply hose from the HMU.
       21 Install a temporary line to the LPTCC port of the HMU and let it drain into the container. Pump filtered (10 micron) oil through the PHP port until it flows out of the LPTCC temporary line. Continue to pump oil through the PHP port until the oil that flows out does not have fuel mixed with it.
       22 Disconnect the cart from the PHP port.
       23 Install the PHP port plug on the fuel pump.
         a TORQUE plug to between 55 and 45 lbf.in (0.62 and 0.51 m.daN )
T.
       24 Tighten the coupling nut as follows:
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
         a Remove the temporary line. Connect the LPTCC fuel supply hose to the HMU.
       25 Install caps on all fuel system ports. Make sure that all lines are connected and do not leak.
     (c) Close the VBV doors (
Ref. AMM TASK 75-31-20-820-001).
     (d) Install vapor barrier film (Material No.CP2160) over the VBV bleed grills.
     (e) Drain the engine oil from the areas that follow:
       1 Oil tank (Ref. AMM TASK 12-13-79-610-003).
       2 Accessory gearbox (AGB) (Ref. AMM TASK 12-13-79-610-004).
       3 Transfer gearbox (Ref. AMM TASK 12-13-79-610-004).
       4 Supply filter on lubrication unit.
       5 The oil supply lines between the lubrication unit and the sumps and gearboxes.
       6 The scavenge oil lines between the sumps and gearboxes and the lubrication unit.
       7 Drain the oil from the oil supply or scavenge lines that have caps installed and that do not connect back to the lubrication unit. Install the caps after the oil has been drained.
     (f) Preserve the lubrication system as follows:
       1 Pump a mixture of approved engine oil (Material No.CP2442) and seven percent (by volume) corrosion protective additive (Material No.CP5075) or a mixture of approved engine oil (Material No.CP2442) and five percent (by volume) lubrication system corrosion preventive oil (Material No.CP5067) into the areas that follow. Use a cart or hand pump equipped with a volume measuring device and pump the oil at a maximum pressure of 50 psi (3.4 bar).
NOTE: If possible, while you pump the oil in, turn the fan and core rotors with your hand and continue to turn for one minute after all the oil is added.
-----------------------------------------------------------------------------
! LOCATION ! OIL QUANTITY !
!------------------------------------------!--------------------------------!
! Oil supply to the AGB ! 6 qt (6 liters) !
!------------------------------------------!--------------------------------!
! Oil supply to the transfer gearbox ! 1 qt (1 liter) !
!------------------------------------------!--------------------------------!
! Oil supply to the forward sump ! 2 qt (2 liters) !
!------------------------------------------!--------------------------------!
! Oil supply to the aft sump ! 1 qt (1 liter) !
!------------------------------------------!--------------------------------!
! Oil tank ! 18 qt (17 liters) !
!------------------------------------------!--------------------------------!
! Lube and scavenge pumps ! Wet parts !
! (Oil supply and scavenge discharge) ! !
-----------------------------------------------------------------------------

       2 Install caps on all of the lube system ports, pipes, drains, vents, etc.
     (g) Install vapor barrier film (Material No.CP2160) on all of the open engine sections.
     (h) Install a tag on each section of the engine to show that the lubrication and fuel system is preserved.
     (i) Put the adequate protective covers that follows:
       1 If the engine is stored off-wing, cover the full engine with 856A2930 COVER FITTED BARE QEC ENGINE SHIPPING (856A2782G01/G02). Make sure it is tight fitted to the engine.
       2 If the engine is stored on-wing, put a waterproof cover over the whole powerplant. Make sure it is tight fitted to the powerplant. If not possible, as an alternative, cover the entrance to fan inlet cowl and exit openings of exhaust nozzle and exhaust plug.
If the engine inlet and exhaust covers are not available, use barrier material compliant with specification MIL-PRF-121, polyethylene film ASTM D2103 or equivalent 6 mil or thicker material, and tape ASTM D5486.
         a When you apply plastic sheeting and tape to the exhaust, make sure that the drain holes or tubes are clear and not covered.
         b When you use plastic sheeting to cover the inlet, do the steps that follow:
  • Use a lint-free cloth and solvent (spec BMS11-9), to wipe the area where the tape is used.
  • Cut an approximate inlet diameter circle from plastic sheet. Put tape on the plastic circle on FWD edge of the acoustic panel behind the lipskin. Apply with at least 3 layers of tape with overlap around the perimeter of the inlet acoustic panel.
  • Do not place plastic or tape over the lipskin or cover the lipskin with plastic.
  • Apply the tape across the diameter of the circular sheet to reduce the pillowing of the plastic sheeting.
5. Close-up
Subtask 72-00-00-862-061-A ** ON A/C NOT FOR ALL
A. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
Subtask 72-00-00-865-055-A ** ON A/C NOT FOR ALL
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VUFUEL/LP VALVE/MOT1/ENG11QGA08
121VUFUEL/LP VALVE/MOT2/ENG13QGM25
FOR FIN: 1000EM2 (ENGINE2)
49VUFUEL/LP VALVE/MOT1/ENG22QGA09
121VUFUEL/LP VALVE/MOT2/ENG24QGM26
[Rev.10 from 2021] 2026.04.01 02:40:33 UTC