Where must any abnormal conditions be documented?

Abnormal conditions related to fire alarm systems must be documented in the logbook. The logbook serves as an official record for all operational and maintenance activities associated with the fire alarm system. This includes any irregularities, issues, or events that may affect the performance of the fire alarm system. Documenting such conditions in the logbook ensures that there is a detailed account of system status and history, which can be critical for future reference, maintenance activities, and compliance with safety regulations. Additionally, having a clear and comprehensive log provides valuable information for technicians and inspectors who may need to assess the system's reliability and performance over time.