Removal of the Magnetic Bar from the Scavenge Screen Plugs (IF OPTIONALLY INSTALLED) [CFMB]

TASK 79-00-00-080-001-A
Removal of the Magnetic Bar from the Scavenge Screen Plugs (IF OPTIONALLY INSTALLED)

CAUTION: THE INSTALLATION OF THE MAGNETIC BARS IS ONLY AN HELP FOR TROUBLESHOOTING. REVENUE SERVICE FLIGHTS WITH THE MAGNETIC BARS INSTALLED MUST BE LIMITED TO 5 FLIGHTS OR 25 HOURS, THEN YOU MUST REMOVE THE MAGNETIC BARS.

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

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
TASK 79-21-10-000-007-A	Removal of the Scavenge Screen Plugs from the Lubrication Unit
TASK 79-21-10-400-007-A	Installation of the Scavenge Screen Plugs on the Lubrication Unit
Installation/Removal of the Magnetic Bar in/from the Savenge Screen plugs

3. Job Set-up
Subtask 79-00-00-941-059-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the 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 a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 79-00-00-010-059-A ** ON A/C NOT FOR ALL

B. Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-040)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

4. Procedure
Subtask 79-00-00-080-051-A ** ON A/C NOT FOR ALL

A. Removal of the Magnetics Bars

CAUTION: DO NOT TRY TO LOOSEN AND/OR REMOVE THE SCREEN FROM THE PLUG BODY BEFORE REMOVAL/INSTALLATION OF THE MAGNETIC BAR. THE PLUG BODY AND THE SCREEN ARE A NON-SEPARABLE ASSEMBLY. IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE COULD OCCUR.

(1) Remove the scavenge screen plugs from the lubrication unit (Ref. AMM TASK 79-21-10-000-007).
(2) Remove the magnetic bar (10) from the 4 scavenge screen plugs.
(3) Install the scavenge screen plugs on the lubrication unit (Ref. AMM TASK 79-21-10-400-007).

5. Close-up
Subtask 79-00-00-410-058-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 fan cowl doors: (Ref. AMM TASK 71-13-00-410-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 13:14:06 UTC