As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 115, JFK-SFO. (ETOPS) SMOKE LAV DETECTION FAULT ( CABIN INTERCOMMUNICATION DATA SYSTEM (CIDS) 1) CIDS DEU B ); REMOVED AND REPLACED DEU DECODER ENCODER UNIT B (300RH7) IAW AMM 23-73-47.OPS CHK GOOD MDDR CLRD MX-4 UPDATED PLACARD RMVD.