EMB ERJ 145 ER/LR
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Physiological - Other; Troubleshooting; Time Pressure
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Air Traffic Control Provided Assistance; Flight Crew Overcame Equipment Problem; Flight Crew Requested ATC Assistance / Clarification; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
During cruise flight there became a strong odor of smoke or something burning. There was no indication of anything wrong via the aircraft systems and there were no annunciations present alerting the crew of an issue. The flight attendant working the flight called up to the flight deck confirming that she smelled an odor of smoke or something burning. The crew operating the flight decided to not continue to ZZZ1 and instead to divert and make a precautionary landing at ZZZ2.[Cause is] Unknown. A fault somewhere in the aircraft systems; possibly the air packs.
Air Carrier Captain who was on board as a jumpseater reported a fume event during cruise. Flight crew diverted to a suitable airport for a precautionary landing.