As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX- INTERMITTANT FIRE SYSTEM FAULT STATUS MESSAGE. MAINTENANCE FOUND WIRES CHAFING AT CONNECTOR A222P1. REPAIRED WIRES IAW CRJ-700 WIRING DIAGRAM WDM26-15-01 PAGE 1. RECONNECTED WIRE AND INTERROGATED MDC. NO FAULTS FOUND. COMPLIED WITH FIRE SYSTEM SELF TEST. ALL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.