Narrative:

We were level on the downwind of the zzzzz arrival when we I felt a small thump like a door closing. Approximately 1 minute later we received a call on the emergency line from the cabin with a report of smoke in the cabin. The captain and I immediately donned oxygen masks; advised ATC; and began preparing for landing. Approximately 1 minute after the first report of smoke; we were presented with a gen 3 fail message. This was followed approximately 1 minute later with a gen 2/3 off bus message. I ran the QRH procedures per SOP. On final; we were presented with an ap fail message. The captain hand flew the ILS xxl to minimums in heavy rain to a safe landing. We cleared at [taxiway] and set the brake. The fire department conducted an exterior inspection while the captain went into the cabin to determine if an evacuation was required. After determining that we did not need to evacuate; we conducted an expedited taxi to [the] gate where all passengers were deplaned without incident.

Google
 

Original NASA ASRS Text

Title: EMB-145 flight crew reported smoke and what appeared to be overheating of electronics; landed aircraft safely.

Narrative: We were level on the downwind of the ZZZZZ arrival when we I felt a small thump like a door closing. Approximately 1 minute later we received a call on the emergency line from the cabin with a report of smoke in the cabin. The Captain and I immediately donned oxygen masks; advised ATC; and began preparing for landing. Approximately 1 minute after the first report of smoke; we were presented with a GEN 3 FAIL message. This was followed approximately 1 minute later with a GEN 2/3 OFF BUS message. I ran the QRH procedures per SOP. On final; we were presented with an AP FAIL message. The Captain hand flew the ILS XXL to minimums in heavy rain to a safe landing. We cleared at [taxiway] and set the brake. The Fire Department conducted an exterior inspection while the Captain went into the cabin to determine if an evacuation was required. After determining that we did not need to evacuate; we conducted an expedited taxi to [the] gate where all passengers were deplaned without incident.

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.