As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR FLIGHT 3719 DURING PREFLIGHT INSPECTION THE CREW FOUND THE FORWARD CABIN FIRE EXTINGUISHER NEEDLE PRESSURE GAUGE IN THE YELLOW ZONE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE FORWARD CABIN FIRE EXTINGUISHER IAW CRJ 700 AMM CHAPTER 26-23-01. THE AIRCRAFT WAS RETURNED TO SERVICE.