Incorrect Teflon tape installation can cause failure of water system vent valves

Effectivity: Global XRS, G6000, G6500, G5000, GV5000 and G5500 aircraft 

Model number: BD-700-1A1 / BD-700-1A11 

ATA: 38 

By: Sonia Gavrilidis – Customer Support Engineering

A cautionary note (see Note 1, below) has been added to Reference Information Letter (RIL) GX-0076 Rev. E, Potable Water System vent valve P/N 4E3261-4 & 4E3261-5. This RIL can be found on the Bombardier Customer Portal.  

As a best practice, this cleaning procedure should be done every six months to prevents any issues and premature component replacement.  

See the new cautionary process outlined below: 

Should you have further questions regarding RIL GX-0076, please contact your local Bombardier Field Service Representative or the 24/7 Customer Response Centre (CRC) team.