L BLEED LEAK
(Caution)

A leak is sensed on the Left Bleed Air System. The system is installed on the left side of the Aft Equipment Compartment and Pylon.

• Uroseals
• A Bleed Air Leak is sensed on the Left Bleed Air System
• A loose or incorrect installation of the Sensing Elements of the Left Bleed Leak Detection System
• Left Bleed Management Controller (L BMC) (A69)

Advisory Wire/Service Bulletin:

• AW700-36-0826 - Kidde Bleed Leak Detection Loops Notice of Escape

Full Throttle Blog/Forum Articles/Infoservice/Newsletter:

• Tech Corner Article - Hot weather effects on the bleed air detection system

Flight Operation Notifications Manual (FONM): None

NOTES:

• L BLEED LEAK may be posted if the aircraft is operated outside the AFM 02-08-1 and FCOM1 07-06 Hot Weather Operation limitations.
• Auxiliary Power Unit (APU) should not be used for Bleed Extraction to operate air conditioning above 45 C OAT.
• Refer to the Aft Equipment Bay Bleed Leak Troubleshooting Aid Reference Document for help in identifying leaks, component identification and tooling instructions.

1. Using the PMAT, access the Active Faults/Stored Faults as per AMM Tasks.
2. Select related CAIMS message below:
   Select an Item3615516BMC - [BMC1] LEFT BLEED AIR DUCTS LEAK3616516BMC - [BMC2] LEFT BLEED AIR DUCTS LEAK
3. Do the close out.