What was found
MFR - DURING PREFLIGHT TEST, FOUND NR 1 SMOKE DETECTOR INOP. PLACED ON MEL AND CONTINUED TO PDX. AT PDX FOUND REFERENCE LAMP BURNED OUT, REPLACED BOTH LAMPS, TESTED. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MFR - DURING PREFLIGHT TEST, FOUND NR 1 SMOKE DETECTOR INOP. PLACED ON MEL AND CONTINUED TO PDX. AT PDX FOUND REFERENCE LAMP BURNED OUT, REPLACED BOTH LAMPS, TESTED. AIRCRAFT RETURNED TO SERVICE.