DOC AIRBUS | AMM A320FCheck Oil Level and Replenish
TASK 12-13-79-610-011-A
Check Oil Level and Replenish
This task gives the instructions necessary to fill the engine oil tank if the oil level has decreased during normal engine operation.
2. Job Set-up Information
A. Consumable Materials
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 12-13-79-869-051-A ** ON A/C NOT FOR ALL
Subtask 12-13-79-010-064-A ** ON A/C NOT FOR ALL
(2) Attach a transparent plastic overflow hose to the overflow port.
(3) Attach the hose coupling from the pressure fill system to the oil tank fill port.
(4) Fill the oil tank withV10-077 lubricant (engine oil)
(5) When oil from the overflow hose stops, disconnect the pressure filling system.
(6) Reinstall the protective caps on the fill and overflow couplings.
(7) Check for leaks. No leakage is permitted.
5. Close-up
Subtask 12-13-79-410-064-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.03.31 22:55:29 UTC
Check Oil Level and Replenish
WARNING:
DO NOT LET ENGINE OIL STAY ON YOUR SKIN FOR A LONG TIME. FLUSH THE OIL FROM YOUR SKIN WITH WATER. THE OIL IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY.
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING:
DO NOT REMOVE THE FILLER CAP OF THE OIL TANK IMMEDIATELY AFTER ENGINE OPERATION. LET THE OIL PRESSURE DECREASE FOR A MINIMUM OF 5 MINUTES AFTER THE ENGINE SHUTDOWN. IF YOU OPEN THE FILLER CAP WHEN THERE IS PRESSURE IN THE TANK, THE OIL CAN BURN YOU DANGEROUSLY.
CAUTION:
IF THE ENGINE WAS STOPPED FOR MORE THAN 1 HOUR, DO THE SPECIFIC MAINTENANCE ACTION TO MAKE SURE THAT THE OIL LEVEL IS CORRECT. THIS WILL PREVENT OVER-SERVICING IF OIL IS ADDED.
CAUTION:
ADDING TOO MUCH OIL TO THE TANK CAN RESULT IN AMBER CROSS QUANTITY INDICATION WARNINGS AND SERVICE DISRUPTION.
ZONE: 400
1. Reason for the JobThis task gives the instructions necessary to fill the engine oil tank if the oil level has decreased during normal engine operation.
2. Job Set-up Information
A. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V10-077) | lubricant (engine oil) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [1000EM1] (ENGINE-1) | |
| 437BL | |
| FOR [1000EM2] (ENGINE-2) | |
| 447BL | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 70-23-13-911-010-A | Procedures for the Installation of Preformed Packings |
| TASK 71-00-00-710-012-B | Test No.3 : Idle Leak Check |
| TASK 71-00-00-710-045-A | Test No.1 : Dry Motor Leak Check |
| TASK 71-13-14-010-801-A | Open the Fan Cowl Oil Filler Access Door |
| TASK 71-13-14-410-801-A | Close the Fan Cowl Oil Filler Access Door |
Oil Tank Filler CapSubtask 12-13-79-869-051-A ** ON A/C NOT FOR ALL
A. Check the engine oil level.
(1) Where conditions permit, the oil tank should be checked and oil added, if necessary within a period of 5 to 60 minutes after engine shutdown.
(2) If the engine was stopped for between 1 and 10 hours, perform an idle run (Ref. AMM TASK 71-00-00-710-012) of at least 3 minutes duration prior to servicing to ensure the oil level indicated on the sight glass is correct within a period of 5 to 60 minutes after engine shut down.
(3) If the engine was stopped for more than 10 hours, dry crank the engine (Ref. AMM TASK 71-00-00-710-045) followed by a start and idle run of a least 3 minutes duration before servicing to ensure the oil level indicated on the sight glass is correct within a period of 5 to 60 minutes after engine shut down.
(4) Servicing is not required prior to departure if the engine was serviced on arrival or the oil tank sight glass shows a minimum of 23 quarts or the cockpit indication shows a minimum of 19 quarts and pre-departure walkaround checks confirm no oil pools/drips from drain mast.
(5) If extended cranking has been undertaken e.g. following core washing, maintenance activity, etc, prior to servicing, run the engine at idle (Ref. AMM TASK 71-00-00-710-012) for a minimum of 3 minutes.
Subtask 12-13-79-010-063-A ** ON A/C NOT FOR ALL (1) Where conditions permit, the oil tank should be checked and oil added, if necessary within a period of 5 to 60 minutes after engine shutdown.
(2) If the engine was stopped for between 1 and 10 hours, perform an idle run (Ref. AMM TASK 71-00-00-710-012) of at least 3 minutes duration prior to servicing to ensure the oil level indicated on the sight glass is correct within a period of 5 to 60 minutes after engine shut down.
(3) If the engine was stopped for more than 10 hours, dry crank the engine (Ref. AMM TASK 71-00-00-710-045) followed by a start and idle run of a least 3 minutes duration before servicing to ensure the oil level indicated on the sight glass is correct within a period of 5 to 60 minutes after engine shut down.
(4) Servicing is not required prior to departure if the engine was serviced on arrival or the oil tank sight glass shows a minimum of 23 quarts or the cockpit indication shows a minimum of 19 quarts and pre-departure walkaround checks confirm no oil pools/drips from drain mast.
(5) If extended cranking has been undertaken e.g. following core washing, maintenance activity, etc, prior to servicing, run the engine at idle (Ref. AMM TASK 71-00-00-710-012) for a minimum of 3 minutes.
B. Open the oil filler access door 437BL(447BL), in the left fan cowl 437AL(447AL) (Ref. AMM TASK 71-13-14-010-801).
(1) FOR [1000EM1] (ENGINE-1)
437BL
(2) FOR [1000EM2] (ENGINE-2)
447BL.
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
437BL
(2) FOR [1000EM2] (ENGINE-2)
447BL.
Subtask 12-13-79-010-064-A ** ON A/C NOT FOR ALL
A. Remove the filler cap from the engine oil tank.
(1) Lift the handle (6) to open the cap (1).
(2) Turn the handle to align the lock (3) with the slots (4).
(3) Remove the filler cap (1) from the filler neck (7).
Subtask 12-13-79-612-059-A ** ON A/C NOT FOR ALL (1) Lift the handle (6) to open the cap (1).
(2) Turn the handle to align the lock (3) with the slots (4).
(3) Remove the filler cap (1) from the filler neck (7).
B. Fill the engine oil tank - Gravity Filling
(1) Fill the engine oil tank withV10-077 lubricant (engine oil)
(2) Make sure that the oil level sight glass shows FULL.
Subtask 12-13-79-410-063-A ** ON A/C NOT FOR ALL (1) Fill the engine oil tank with
(2) Make sure that the oil level sight glass shows FULL.
NOTE: Do not fill the oil tank past the sight glass FULL level. Filling to tank overfill will result in excess oil, leading to amber cross indication warnings and service disruption.
C. Install the oil tank filler cap
(1) Examine the packing (2) on the filler cap (1). Replace the packing if it is damaged (Ref. AMM TASK 70-23-13-911-010).
(2) Apply engine oil (Material No.V10-077) to the packing (2).
(3) Make sure that the filler cap handle (6) is in the open position.
(4) Align the lock (3) of the cap (1) with the slots (4) in the filler neck (7).
(5) Install the cap and turn the handle to the closed position.
(6) Lower the handle to lock the cap.
Subtask 12-13-79-610-060-A ** ON A/C NOT FOR ALL (1) Examine the packing (2) on the filler cap (1). Replace the packing if it is damaged (Ref. AMM TASK 70-23-13-911-010).
(2) Apply engine oil (Material No.V10-077) to the packing (2).
(3) Make sure that the filler cap handle (6) is in the open position.
(4) Align the lock (3) of the cap (1) with the slots (4) in the filler neck (7).
(5) Install the cap and turn the handle to the closed position.
(6) Lower the handle to lock the cap.
CAUTION:
DURING FILLING OF THE OIL TANK, DO NOT EXCEED A FLOW RATE OF 50 US GAL/HR, OR OVERSERVICING MAY RESULT.
CAUTION:
REMOVAL OF THE HOSE FROM THE OVERFLOW PORT BEFORE FLOW OF OIL HAS STOPPED WILL RESULT IN AN OVERSERVICED TANK.
D. Fill the Engine Oil Tank - Pressure Filling NOTE: Use of a transparent plastic hose will allow detection of oil at the overflow port (oil tank full) and give a quicker visual indication to stop the filling operation.
(1) Remove the two protective caps, one on the fill port and one on the overflow port. (2) Attach a transparent plastic overflow hose to the overflow port.
(3) Attach the hose coupling from the pressure fill system to the oil tank fill port.
(4) Fill the oil tank with
(5) When oil from the overflow hose stops, disconnect the pressure filling system.
(6) Reinstall the protective caps on the fill and overflow couplings.
(7) Check for leaks. No leakage is permitted.
Subtask 12-13-79-410-064-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.
(a) FOR [1000EM1] (ENGINE-1)
437BL
(b) FOR [1000EM2] (ENGINE-2)
447BL.
(1) Make sure that the work area is clean and clear of tools and other items.
WARNING:
MAKE SURE THAT ALL LATCHES ARE IN THE DISENGAGED POSITION BEFORE YOU CLOSE THE OIL FILLER DOOR. IF THE LATCHES ARE NOT CORRECTLY DISENGAGED BEFORE YOU CLOSE THE DOOR, IT IS POSSIBLE TO ENGAGE THE LATCHES INCORRECTLY. THIS CAN CAUSE THE DOOR TO BREAK OFF AND CAUSE INJURY.
(2) Close the oil filler access door (Ref. AMM TASK 71-13-14-410-801). (a) FOR [1000EM1] (ENGINE-1)
437BL
(b) FOR [1000EM2] (ENGINE-2)
447BL.