What was found
FLIGHT NR 3937 REPORTED THEIR NR 2 SMOKE DETECTOR AS BEING INOPERATIVE DURING ROUTINE TEST. MAINTENANCE REMOVED AND REPLACED UNIT AND OPERATIONAL TEST SYSTEM, ALL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT NR 3937 REPORTED THEIR NR 2 SMOKE DETECTOR AS BEING INOPERATIVE DURING ROUTINE TEST. MAINTENANCE REMOVED AND REPLACED UNIT AND OPERATIONAL TEST SYSTEM, ALL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.