L ENGINE OIL CHIP
(Advisory)

The cyan 'L ENG OIL CHIP' advisory CAS message indicates metal debris detected in the engine lube system.
NOTE: A chip zapper will eliminate small particles to prevent nuisance indications, this message indicates that the chip is larger than what the zapper can handle and needs to be inspected with a SOAP sample taken.

• Metallic Contamination in the oil
• Chip Detector
• Associated Wiring

Advisory Wire/Service Bulletin:

• AW300-76-0243 - Electronic Control Unit (ECU) Water Ingress
• AW300-71-0335 - AS907 Engine - No. 4 Aft Sump

Forum Articles/Infoservice/Newsletter: None

1. Interrogate the MDC as follows:

   1. On the cursor control panel, ensure the toggle switch is to the right and select Anti-Ice, ECS and Fuel buttons simultaneously. The MDC main menu should now be displayed on Display Unit #3.
   2. Using the joystick, select Current Faults (if the fault is active) or Aircraft History to research stored faults. From Aircraft History you can then select Fault Message History and locate the air condition fault logged.
   3. Select the MDC fault from the drop down below to provide additional information to assist in troubleshooting.
      Select an MDC Fault Code/Message:B3-302979 - OIL CHIPS DETECTED [L ENG OIL SYS]