What was found
MAIN CABIN SMOKE DETECTOR HAS 1 BACKGROUND LIGHT INOPERATIVE. REMOVED AND REPLACED ONE BACKGROUND LIGHT IN MAIN CABIN SMOKE DETECTOR INDICATOR ON FLIGHT ENGINEERS PANEL. SYSTEM TEST NORMAL. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MAIN CABIN SMOKE DETECTOR HAS 1 BACKGROUND LIGHT INOPERATIVE. REMOVED AND REPLACED ONE BACKGROUND LIGHT IN MAIN CABIN SMOKE DETECTOR INDICATOR ON FLIGHT ENGINEERS PANEL. SYSTEM TEST NORMAL. (M)