What was found
DISCREPANCY: FA'S CALLED FROM FWD GALLEY SAYING THEY SMELLED ELECTRICAL BURNING, A COUPLE MINUTES LATER SAID IT HAD SPREAD AND PASSENGERS FWD & MID CABIN ALSO SMELLED IT. SMELL RACHED COCKPIT BUT IT WASN'T REALLY STRONG. NEVER ANY VISIBLE SMOKE OR IDENTIFIBLE SOURCE. WE RAN SMOKE/FUME QRH AND PLACED THE BLOWER AND OVRD AND CABIN FANS OFF, SMELL DISSIPATED WITHIN ABOUT 10-15 MIN STARTED AT CRUISE. PRELIMINARY CORRECTED ACTION: PERFORMED INDENTIFICATION OF CABIN ODORS FOUND TO BE A TYPE 7 CAUSE. PERFORMED INSP AC OK FOR SERVICE REF. ITEM #1 THIS LOG PAGE FOUND RECIRC FAN 2 (14HG) FAN INOP CORRECTED ACTION; PLACED ON MEL 21-21-01A C/N 1172020 DUE 7/6/2021 MCC MLC 429390 MAINTENANCE PROCEDURES C/W PLACARD INSTALLED. REMOVED AND REPLACED RECIRCULATION FAN 2 (14HG) IAW AMM 21-21-51-000-001-A AND AMM 21-21-51-400-001-A. OPS TEST OK. NO FAULTS. THIS CLEARS MEL PLACARDS REMOVED. TW: 108518 DUE : FA'S CALLED FROM FWD GALLEY SAYING THEY SMELLED ELECTRICAL BURNING, A COUPLE MINUTES LATER SAID IT HAD SPREAD AND PASSENGERS FWD & MID CABIN ALSO SMELLED IT. SMELL RACHED COCKPIT BUT IT WASN'T REALLY STRONG. NEVER ANY VISIBLE SMOKE OR IDENTIFIBLE SOURCE. WE RAN SMOKE/FUME QRH AND PLACED THE BLOWER AND OVRD AND CABIN FANS OFF, SMELL DISSIPATED WITHIN ABOUT 10-15 MIN STARTED AT CRUISE CORRECTED ACTION: PERFORMED INDENTIFICATION OF CABIN ODORS FOUND TO BE A TYPE 7 CAUSE PERFORMED INSP AC OK FOR SERVICE REF. ITEM #1 THIS LOG PAGE FOUND RECIRC FAN 2 (14HG) FAN INOP CORRECTED ACTION; PLACED ON MEL 21-21-01A C/N 1172020 DUE 7/6/2021 MCC MLC 429390 MAINTENANCE PROCEDURES C/W PLACARD INSTALLED / REF MDDR# 1172020RECIRC FAN 2 (14HG) INOP.