EMB ERJ 145 ER/LR
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Air Traffic Control Provided Assistance; Flight Crew Returned To Departure Airport; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Landed in Emergency Condition; General Maintenance Action
Aircraft
After takeoff and during initial climb; flight crew noticed an oily and musty fume/odor in the flight deck. The odor dissipated momentarily; but returned and flight crew was concerned since it was from an unknown source. Pilots contacted [the] Flight Attendant to see if fumes were noticeable in [the] cabin. Flight Attendant described a plastic-like odor behind [the] cockpit door and up until row 3 in the cabin. Concerned for the safety of the passengers and crew; pilots decided to make a precautionary landing and return to ZZZ.
EMB-145 Captain reported a precautionary air return after noticing an oily and musty odor in the flight deck during initial climb.