EMB ERJ 145 ER/LR
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Troubleshooting
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Clearance; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Air Traffic Control Provided Assistance; Flight Crew Diverted; Flight Crew Landed As Precaution; Flight Crew Overcame Equipment Problem; Flight Crew Requested ATC Assistance / Clarification
Aircraft
The time posted of XA:00 pm is approximate. Sometime after level off at cruise altitude; there was a noticeable burning odor in the cockpit followed by brief drizzle of smoke. The Flight Attendant shortly called up and said the burning odor was in the back also but no smoke. It was very brief and at that time was going away when the Flight Attendant called. I directed the Flight Attendant to continue to search areas of possible smoke and get back to me. We followed all our procedures. There were no engine or other indications of smoke; and it all went away. After discussion upfront we made the decision for safety to divert to nearest suitable airport which was ZZZ1 with no further incidents. Always follow company policy and procedures. And make decisions based on the safest alternatives. Using our basic knowledge of the aircraft; we suspected a pack may have ceased. That would be logical of the temporary odor and the drizzle of smoke.
Air Carrier Captain reported a temporary fume event during cruise and executed a precautionary diversion to the nearest suitable airport.