What should be done if a non-rechargeable fire extinguisher fails inspection and cannot be fixed immediately?

The appropriate action to take when a non-rechargeable fire extinguisher fails inspection and cannot be fixed immediately is to discharge and remove it. This decision is crucial for safety reasons. A fire extinguisher that has failed inspection is not reliable for use in an emergency. Continuing to use it or placing it back in service could lead to a dangerous situation where the extinguisher may not function properly when needed. Marking it for repair only does not address the immediate risks associated with having a non-functional extinguisher on hand. Therefore, discharging the extinguisher and removing it from service ensures that it will not be used inappropriately and allows for safe disposal or replacement. This approach maintains safety standards and ensures that only functional, reliable equipment is available in case of a fire emergency.