Emb-145 first officer reported returning to the departure airport after experiencing smoke in the co...

Attributes
ACN	1486120
Time
Date	201710
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Indicating and Warning - Flight & Navigation Systems
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

After departure from runway xxl and around 4000 feet the captains pfd displayed red X; captains mfd displayed red X; EICAS went blank; rmu (radio management unit) #1 reverted to engine display; autopilot disengaged and the autopilot panel went blank; flight director was lost and all flight mode indications were lost. Being on an RNAV departure I requested a momentary vector from departure and were told to fly present heading. The ca mentioned this looks like a symbol generator #1 failure. I got the QRH out and began looking up the procedure for a SG1 failure. 30 seconds later a strong electrical burning smell filled the cockpit with a light haze of smoke. We [advised ATC] and returned to [departure airport]. Ca called the flight attendant and told her that we were returning to [the airport] for smoke in the cockpit.

Original NASA ASRS Text

Title: EMB-145 First Officer reported returning to the departure airport after experiencing smoke in the cockpit probably related to failure of symbol generator #1.

Narrative: After departure from Runway XXL and around 4000 feet the Captains PFD displayed red X; Captains MFD displayed red X; EICAS went blank; RMU (Radio Management Unit) #1 reverted to engine display; autopilot disengaged and the autopilot panel went blank; flight director was lost and all flight mode indications were lost. Being on an RNAV departure I requested a momentary vector from departure and were told to fly present heading. The CA mentioned this looks like a symbol generator #1 failure. I got the QRH out and began looking up the procedure for a SG1 failure. 30 seconds later a strong electrical burning smell filled the cockpit with a light haze of smoke. We [advised ATC] and returned to [departure airport]. CA called the FA and told her that we were returning to [the airport] for smoke in the cockpit.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Emb-145 first officer reported returning to the departure airport after experiencing smoke in the cockpit probably related to failure of symbol generator #1.