What was found
APU FIRE EXTINGUISHER OVERPRESSURE INDICATION RED DISK FOUND WHITE ON PREFLIGHT INSPECTION. REPLACED APU FIRE EXTINGUISHER INDICATOR DISK WITH RED DISK. IAW AMM 26-22
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
APU FIRE EXTINGUISHER OVERPRESSURE INDICATION RED DISK FOUND WHITE ON PREFLIGHT INSPECTION. REPLACED APU FIRE EXTINGUISHER INDICATOR DISK WITH RED DISK. IAW AMM 26-22