Failure of the Oil Quantity Transmitter on Engine 2

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1. Possible Causes
· XMTR-OIL QTY ( 4002EN )
· wiring from the engine 2 oil-quantity transmitter (4002EN) pins A/3, 4 to the first terminal block
2 Job Set-up Information
A. Referenced Information
REFERENCE DESIGNATION
Ref. AMM 31-50-00-710-001 Ground Scanning of the Central Warning System
Ref. AMM 79-31-15-000-010 Removal of the Oil Quantity Transmitter
Ref. AMM 79-31-15-400-010 Installation of the Oil Quantity Transmitter
Ref. ASM 79-36-01
3. Fault Confirmation
Subtask 79-31-00-865-055-A
A. Make sure that this(these) circuit breaker(s) is(are) closed:
PANEL DESIGNATION FIN LOCATION
121VU ENGINE/ENG2/OIL/QTY/AND REV
SNSR/CHAN B
1EN2 N41
Subtask 79-31-00-710-064-A
B. Test
(1) Do the operational test of the Central Warning Systems (SDAC) Ref. AMM 31-50-00-710-001 .
4. Fault Isolation
Subtask 79-31-00-810-057-A
A. If the test gives the maintenance message SDAC 1 : ENG 2 OIL QTY XMTR 4002EN:
· replace the XMTR-OIL QTY ( 4002EN ) Ref. AMM 79-31-15-000-010 and Ref.
AMM 79-31-15-400-010 .
(1) If the fault continues:
· do a check and repair the wiring from the engine 2 oil-quantity transmitter (4002EN) pins A/3, 4 to
the first terminal block Ref. ASM 79-36-01 and Ref. ASM 79-36-01.
Subtask 79-31-00-710-065-A
B. Do the test given in Para. 3. [Rev.6 from Feb 2017] 2026.04.04 04:38:27 UTC