What was found
ISP - FLT 5153 - AVIONIC SMOKE MASTER WARNING ACTIVATED. COULD NOT DUPLICATE DISCREPANCY. REMOVED AND REPLACED AVIONICS RACK SMOKE DETECTOR FOR SUSPECTED INTERMITTENT FALSE WARNING. AIRCRAFT RETURNED TO SERVICE. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ISP - FLT 5153 - AVIONIC SMOKE MASTER WARNING ACTIVATED. COULD NOT DUPLICATE DISCREPANCY. REMOVED AND REPLACED AVIONICS RACK SMOKE DETECTOR FOR SUSPECTED INTERMITTENT FALSE WARNING. AIRCRAFT RETURNED TO SERVICE. (M)