When carrying out inspections, it is common to come across devices that are not full serviceable and are left in the original location. As the engineer you need to cover yourself.
According to BS, is it not the case that:
If a Device is found to be faulty and no able to be repaired during the service visit for which ever reason, that it should be;
“Any extinguisher with a major defect or defects which make it unsafe for use, and which cannot be rectified during maintenance, should immediately be made safe, removed from its designated place, and marked “CONDEMNED” together with the reason for this assessment. The responsible person should be advised in the written report”
Equally if for any reason the maintenance is not completed on a device it:
“If the required spare parts are not available for any of these extinguishers, the maintenance should be interrupted and the extinguisher made safe, removed from its designated place and marked “NOT MAINTAINED”, together with the reason for this assessment; and the competent person should advise the responsible person, in the written report”
The responsibility then placed back in the hands of the responsible person.