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(WARNING)
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AMBER MESSAGE (ADVISORY)
CYAN MESSAGE (STATUS)
WHITE MESSAGE Require immediate crew attention. These messages are accompanied by flashing master warning, triple chime attenson with or without voice message or dedicated tone. Require immediate crew awareness and future crew action may be required in the form of alternate system selection or performance limitation. These message are accompanied by flashing master caution and a single chime. Indicate safe or normal system operation which require crew awareness, over and above the dark cockpit philosophy. Indicate minor failures or reduction in systems capability, which require no crew action.

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08/19/20

Message Overview:

Fault Message:

L OIL FILTER[BLKG]/PRESS SW/WRG

Fault Code:

7325628LBR

Associated CAS:

L OIL FILTER
(Advisory)

Reporting LRU: Left Engine Electronic Controller (EEC)
System Description: 79-30-00
Schematic Diagram: 79-30-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 71-50-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

Left Hand Engine Oil Filter Impending Blockage is Detected by the Engine Electronic Controller (EEC) 1 Channel B. Inhibited during Take-Off and Landing.

Possible Causes:

  • Oil Filter
  • Oil-Filter Pop-Up Indicator
  • Oil Filter Differential Pressure (DP) Switch (S2)
  • Engine Electronic Controller (EEC) 1
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

  1. Left engine oil filter Differential Pressure (DP) switch is connected to the EEC channel B only.
  2. Oil filter Differential Pressure (DP) switch is activated (open) at 18 psi.
  3. Filter Differential Pressure pop-up indicator will trigger at 50 psi.

Quick Links:

Engine Safety Precautions AMM 71-00-00-910-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Start the Engine AMM 71-00-00-866-806 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Engine Shutdown (Usual) AMM 71-00-00-866-809 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Opening of the Cowls AMM 71-10-00-010-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Closing of the Cowls AMM 71-10-00-410-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Discard the Pressure Filter Element AMM 79-21-02-961-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Detailed Inspection of the Front-Bearing-Chamber Magnetic Chip-Detector AMM 79-21-04-220-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Detailed Inspection of the Rear-Bearing-Chamber Magnetic Chip-Detector AMM 79-21-04-220-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Detailed Inspection of the Accessory-Gearbox Magnetic Chip-Detector AMM 79-21-04-220-803 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Connection of Electrical Connectors EMM 70-50-01-910-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Eng Electronic Controller (EEC) Mod 73-101559 EMM 73-21-01-000-801-B00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Eng Electronic Controller (EEC) Mod 73-101559 EMM 73-21-01-400-801-B001 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Detailed Inspection of the Pressure Filter Element EMM 79-21-02-220-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Cleaning of the Scavenge Strainers EMM 79-21-03-110-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Oil-Filter Differential-Pressure Switch EMM 79-34-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Oil-Filter Differential-Pressure Switch EMM 79-34-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Visual Inspection of the Oil Filter Pop-Up Indicator EMM 79-34-02-210-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Check if the fault messages L OIL FILTER [BLKG]/PRESS SW/WRG (7325628LBR) and L OIL FILTER SW WRG/ SWITCH (7325629LBR) are displayed at the same time or during the same flight.

    1. If YES, perform the troubleshooting for the fault messages (7325629LBR) first and continue with next step.
    2. If NO, continue with next step.

  2. Perform the deactivation of the Thrust Reverser and open the cowls.
  3. Perform a visually Inspection to the filter differential pressure pop-up indicator (at the bottom of filter) as per Engine Manual (EMM 79-34-02-210-801).
  4. Perform a detailed Inspection of the Oil filter element as per Engine Manual (EMM 79-21-02-220-801).

    1. If the oil filter element inspection is satisfactory, go to step 8.
    2. If the oil filter element inspection is not satisfactory, go to step 7.

  5. Perform wiring checks between the Oil Filter DP Switch (P1069) and the EEC 1 (P1046).

    1. If wiring checks are not good, repair defective wiring as required and go to step 9.
    2. If wiring checks are good, continue with next step.

  6. Swap EEC 1 with EEC 2. Is the fault still present?

    1. If NO, replace EEC 1 and go to step 9.
    2. If YES, go to step 8.

  7. Replace the oil filter element.

    1. If system checks are good, go to step 9.
    2. If fault remains, continue with next step.

  8. Replace the Oil Filter DP Switch.
  9. Close the cowls and activate thrust reverser.
  10. Do close out.

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