Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 248.75; Flight Crew Total 15334.82; Flight Crew Type 8230.55
Situational Awareness
Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Flight Crew Overcame Equipment Problem; General Maintenance Action
Aircraft
Wet dog/dirty sock very faint odor during cruise flight. Turned off both recirculating fans. Immediately got 2 EICAS messages said smoke detected in both pilot and flight attendants crew rest areas. Restored recirculated fan operation and EICAS messages went away. Purser called about the warning on her panel. Inspected crew rest areas; no smoke or odor found. After block in at ZZZ with engines shut down; strong wet dog/dirty sock odor came back. During deplaning; Purser and other flight attendants said aft cabin area smelled like jet fuel. This seemed to be a separate issue; but sent this additional ACARS write up in after block in and verbally notified on radio. Phone call to [Maintenance Control] was made later to add details verbally.
B777 Captain reported 'dirty socks' odor in passenger cabin which dissipated.