Which of the following is not a component of the fixed halon fire extinguisher preflight check on the CRJ aircraft?

The process of preflight checks for fixed halon fire extinguishers on CRJ aircraft involves verifying several critical components to ensure the extinguisher is ready for use in case of a fire emergency. One key aspect of these checks includes confirming that the gauge indicates a pressure range that is operational, typically shown by the green area of the gauge. This ensures that the fire extinguisher is charged and functional.

Another important component of the inspection is checking that the seal on the extinguisher is intact. An unbroken seal indicates that the extinguisher has not been tampered with or used, which is vital for ensuring reliability during an emergency.

Additionally, the color on the thermometer sticker must also be verified, as it indicates that the extinguisher has been maintained at an appropriate temperature. If the thermometer sticker shows a color indicating it has been subjected to temperatures that exceed the operational range, it may compromise the integrity of the extinguisher.

While ensuring that the handle is visible may be a good practice for accessibility, it is not officially listed as a necessary component of the fixed halon fire extinguisher preflight check. The presence of the handle alone does not affect the operational readiness of the extinguisher itself, making it less