Removal of the No. 4 Bearing Pressure Transducer [IAE]
TASK 79-33-16-000-010-A
Removal of the No. 4 Bearing Pressure Transducer
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 79-33-16-941-050-A ** ON A/C NOT FOR ALL
Subtask 79-33-16-020-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:39:56 UTC
Removal of the No. 4 Bearing Pressure Transducer
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.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | CONTAINER 5 L (1.32 USGAL) |
| No specific | AR | COVER - PROTECTION |
| No specific | AR | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
Subtask 79-33-16-941-050-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on 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 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 79-33-16-010-050-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on 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 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).
B. Open the fan cowls (Ref. AMM TASK 71-13-00-010-010)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 79-33-16-020-051-A ** ON A/C NOT FOR ALL
A. Disconnect the oil tube from the transducer
(2) Disconnect the tube and drain the oil into a CONTAINER 5 L (1.32 USGAL)
(3) Disconnect the electrical connector 4005EN-A (1) from the transducer.
Subtask 79-33-16-020-050-A ** ON A/C NOT FOR ALL WARNING:
DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:
- FLUSH IT AWAY WITH CLEAN WATER
- GET MEDICAL AID.
CAUTION:
DO NOT LET ENGINE OIL FALL ON THE ENGINE. UNWANTED OIL MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH THE OIL CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.
(1) Cut and discard the lockwire from the oil tube (4). (2) Disconnect the tube and drain the oil into a CONTAINER 5 L (1.32 USGAL)
(3) Disconnect the electrical connector 4005EN-A (1) from the transducer.
B. Remove the No. 4 bearing pressure transducer
(1) Remove the two bolts (2) that secure the transducer to the bracket.
(2) Remove the transducer (3) from the bracket.
(3) Put the applicable COVER - PROTECTION on the openings.
(1) Remove the two bolts (2) that secure the transducer to the bracket.
(2) Remove the transducer (3) from the bracket.
(3) Put the applicable COVER - PROTECTION on the openings.
No. 4 Bearing Pressure Transducer