Check oil level and replenish Check Pop Out Indicator of EMCD (Electrical Master Chip Detector)

TASK 12-13-79-610-002-A
Check oil level and replenish Check Pop Out Indicator of EMCD (Electrical Master Chip Detector)

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.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	DETECTOR-COMBUSTIBLE GAS
No specific	1	VISCOMETER

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2442)	engine oil
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437BL
FOR [1000EM2] (ENGINE-2)
447BL

D. Referenced Information

REFERENCE	DESIGNATION
TASK 73-11-20-000-002-A	Removal of the Servo Fuel Heater
TASK 73-11-20-400-002-A	Installation of the Servo Fuel Heater
TASK 79-11-10-300-003-A	Replacement of the O-ring of the Oil Tank Filler Cap
TASK 79-21-20-000-002-A	Removal of the Main Oil/Fuel Heat Exchanger
TASK 79-21-20-400-002-A	Installation of the Main Oil/Fuel Heat Exchanger
TSM 79-00-00-810-833	The Electrical Master Chip Detector indication is popped out - Engine 1
TSM 79-00-00-810-834	The Electrical Master Chip Detector indication is popped out - Engine 2
Oil Tank Sight Gage
Measuring the Viscosity of the Oil
Removal of the Oil Tank Filler Cap

3. Job Set-up
Subtask 12-13-79-941-068-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.

Subtask 12-13-79-010-065-A ** ON A/C NOT FOR ALL

B. Open the oil tank servicing access door :
(1) FOR [1000EM1] (ENGINE-1)
437BL
(2) FOR [1000EM2] (ENGINE-2)
447BL

4. Procedure
Subtask 12-13-79-210-065-A ** ON A/C NOT FOR ALL

A. Check oil level and master Magnetic Chip Detector (MCD) visual indicator.

NOTE: In order to reduce burden for nuisance EMCD pop out indication, the inspection of the Electrical Master Chip Detector can be deferred to the next convenient maintenance opportunity where trained personnel can perform the inspection without interfering with revenue service operation.

(1) Check the Electrical Master Chip Detector visual indication after the next flight. If the pop-out is extended TSM 79-00-00-810-833 or TSM 79-00-00-810-834.
(2) Check oil level on the sight gage.

NOTE: This task is the procedure to replenish the engine oil.

Oil should be added not less than 5 minutes and not more than 60 minutes after engine shutdown while the oil in the tank is still warm. This will prevent the over-servicing of the engine.
If the oil in the tank is cool or cold, the oil density will increase (volume decreases) and the oil tank can be over-serviced.
If the oil tank is over-serviced, this will not damage the engine. The extra oil will be blown overboard through the engine vent system.
The quantity of oil can cause incorrect calculations for the consumption rate.

(a) If oil level is below full mark, add oil as follows.

Subtask 12-13-79-100-051-A ** ON A/C NOT FOR ALL

B. Clean the oil tank scupper:

CAUTION: MAKE SURE THAT THE OIL TANK SCUPPER IS CLEAN TO PREVENT CONTAMINATION OF THE TANK DURING THE SERVICING OPERATIONS.

(1) Clean the oil tank scupper with a Textile-Lint free Cotton - (Material No.14SBA1) before you remove the oil tank filler cap.

Subtask 12-13-79-010-066-B ** ON A/C NOT FOR ALL

C. Open the Oil Tank.

Removal of the Oil Tank Filler Cap ** ON A/C NOT FOR ALL

CAUTION: BE CAREFUL TO REMOVE THE OIL TANK FILLER-CAP, DO NOT APPLY MORE FORCE THAN IS NECESSARY TO ITS HANDLE. TOO MUCH FORCE CAN CAUSE DAMAGE TO OCCUR TO ITS LOCKING DEVICE.

CAUTION: DO NOT TRY TO PULL THE HANDLE OF THE OIL-TANK FILLER-CAP OUT OF ITS STOP LIMITS.

(1) Raise oil tank filler cap handle to vertical (unlocked) position.
(2) Turn the handle of the filler cap counterclockwise 45° against its stop to disengage the locking device and remove the cap.

NOTE: If it is difficult to open the filler cap, you must stay for 5 more minutes at least to do step (2) again.

(3) Do a check for fuel in the oil.

CAUTION: BEFORE YOU ADD OIL IN THE OIL TANK DURING ITS SERVICING, MAKE SURE THE OIL IN TANK DOES NOT CONTAIN FUEL. IF IT SMELLS OF FUEL, REPLACE THE MAIN OIL/FUEL HEAT EXCHANGER AND SERVO FUEL HEATER THEN FLUSH THE ENGINE OIL SYSTEM.

CAUTION: IF YOU THINK THERE ARE FUEL FUMES WHEN YOU REMOVE THE OIL FILLER CAP, DO A CHECK FOR FUEL IN THE OIL. IF THERE IS FUEL IN THE OIL TANK, REPLACE THE MAIN OIL/FUEL HEAT EXCHANGER AND THE SERVO FUEL HEATER THEN FLUSH THE ENGINE OIL SYSTEM.

(a) If you think there is fuel in the oil, use one of the following available on-site test kits to examine the oil:
- VISCOMETER (measuring the viscosity of the oil),
- DETECTOR-COMBUSTIBLE GAS (checking for presence of a combustible vapor).
1 If the test fails then fuel is found, do these steps:
a Replace the Main Oil/Fuel Heat Exchanger (Ref. AMM TASK 79-21-20-000-002) (Ref. AMM TASK 79-21-20-400-002).
b Replace the servo fuel heater (Ref. AMM TASK 73-11-20-000-002) (Ref. AMM TASK 73-11-20-400-002).
2 If the test passes, no fuel is found.

Subtask 12-13-79-612-070-A ** ON A/C NOT FOR ALL

D. Added oil in the oil tank:

Oil Tank Sight Gage ** ON A/C NOT FOR ALL

CAUTION: MAKE SURE THAT THERE IS NO CONTAMINATION ON THE OPENING OF THE CONTAINER FROM WHICH YOU FILL THE OIL TANK.

(1) Add engine oil (Material No.CP2442) by pouring into oil tank fill port up to full mark.

Subtask 12-13-79-210-066-A ** ON A/C NOT FOR ALL

E. Before you install oil tank filler cap, ensure that the O'ring seal is in good condition or does not show sign of leakage. If not, replace the O'ring seal (Ref. AMM TASK 79-11-10-300-003).

Subtask 12-13-79-410-066-B ** ON A/C NOT FOR ALL

F. Close the Oil Tank.

Removal of the Oil Tank Filler Cap ** ON A/C NOT FOR ALL

WARNING: IF THE HANDLE POSITION IS OPPOSITE TO THE OIL QUANTITY TRANSMITTER, THERE IS A RISK OF INJURY TO YOUR FINGERS.

WARNING: WHEN THE HANDLE OF THE FILLER CAP IS IN THE LOCKED POSITION, MAKE SURE THAT IT CANNOT ACCIDENTALLY MOVE TO ITS VERTICAL (UNLOCKED) POSITION. IF IT DOES, THERE IS A RISK THAT PRESSURIZED HOT OIL WILL FLOW OUT OF THE TANK AND CAUSE INJURY (DANGEROUS BURNS).

CAUTION: MAKE SURE THAT THE OIL TANK FILLER-CAP IS LOCKED. ITS HANDLE MUST POINT TO THE OIL QUANTITY TRANSMITTER.

CAUTION: MAKE SURE THAT THE FILLER CAP IS CORRECTLY CLOSED. IF IT IS NOT CORRECTLY CLOSED, A BAD SUPPLY PRESSURE OF THE OIL LUBRICATION UNIT DURING ENGINE OPERATION CAN OCCUR.

CAUTION: DO NOT USE FORCE TO MOVE THE HANDLE OF THE FILLER CAP. DAMAGE CAN OCCUR TO ITS LOCKING DEVICE.

CAUTION: DO NOT TRY TO PULL THE HANDLE OF THE FILLER CAP OUT OF ITS STOP LIMITS.

(1) Install the oil tank filler cap with handle in vertical position.
(2) Turn the handle of the oil tank filler cap clockwise 45° against its stop to engage the locking device.

NOTE: If the locking device is correctly engaged, the cap cannot be pulled from tank.

(3) Push hinged oil tank cap handle down flat into the locked position.

5. Close-up
Subtask 12-13-79-410-065-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 oil tank access door :
(a) FOR [1000EM1] (ENGINE-1)
437BL
(b) FOR [1000EM2] (ENGINE-2)
447BL

[Rev.10 from 2021] 2026.03.31 22:55:23 UTC