Removal of the Oil Quantity Transmitter [CFMB]

TASK 79-31-15-000-041-A
Removal of the Oil Quantity Transmitter

FIN: 4002EN ** ON A/C NOT FOR ALL

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	ACCESS PLATFORM 1M(3 FT)
No specific	AR	COVER - PROTECTION
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
Oil Quantity Transmitter

3. Job Set-up
Subtask 79-31-15-941-050-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 79-31-15-010-050-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put the ACCESS PLATFORM 1M(3 FT) is in position.

4. Procedure
Subtask 79-31-15-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Oil Quantity Transmitter:
(1) Disconnect the electrical connector 4002ENA from the oil quantity transmitter (15).
(2) Remove the bolts (5) and the washers (10) that attach the transmitter (15) to the oil tank.
(3) Remove the transmitter (15) from the oil tank.
(4) Remove the packing (20) from the transmitter (15) and discard.
(5) Do not remove the packing (25) from the transmitter (15).
(6) Put a COVER - PROTECTION over the open area in the oil tank.
(7) Put a COVER - PROTECTION on the electrical connector 4002ENA and the transmitter (15).

[Rev.10 from 2021] 2026.04.01 13:14:08 UTC