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(WARNING)
RED MESSAGE (CAUTION)
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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08/09/19

ATA 26-00-00 Fire Protection Troubleshooting Tips

Fire Extinguisher Container Weight

Reference Time Limits Maintenance Checks (TLMC), Chapter 5 Task No. 26-21-01-203, Functional Test of the Fire Extinguisher Contents Weight.

When weighing a Fire Extinguisher Container (bottle) with discharge heads and cartridges (squibs) installed, the calculation of the container's "TOTAL WT (ACTL)" by subtracting the 'nominal' weights of the discharge heads and cartridges may not result in a true container weight.

It is recommended that a container be weighed with its discharge heads and cartridges removed. Since the container's "TOTAL WT (ACTL)" indicated on its identification plate was measured with discharge heads and cartridges removed, weighing the container in the same way will give a true weight measurement for direct comparison.

This Troubleshooting Tip will avoid unnecessary removals of the fire extinguishing containers.

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