EMB-145 flight crew reported a burning odor in the cockpit and cabin smoke during cruise. The flight crew completed the memory action items; donned oxygen masks; and diverted for an immediate landing.

Date: 2022-09 · Aircraft: EMB ERJ 145 ER/LR · Phase: cruise

Anomalies: aircraft-equipment-problem-critical|deviation-discrepancy-procedural-clearance|deviation-discrepancy-procedural-published-material-policy|flight-deck-cabin-aircraft-event-smoke-fire-fumes-odor

Synopsis

EMB-145 flight crew reported a burning odor in the cockpit and cabin smoke during cruise. The flight crew completed the memory action items; donned oxygen masks; and diverted for an immediate landing.

Narrative

We were enroute to ZZZ1 at FL250 when the Captain and I started to smell an electrical burning smell. Just as we were discussing what to do; our flight attendant (FA) called us and said there was smoke and a strong burning smell in the cabin. Immediately the Captain and I completed the memory action items to don our oxygen mask; and then ran the Smoke; Fire; or Fumes QRC. After that; we decided ZZZ2 was the closest airport to our current position; so we [requested priority handling] and told ATC we were diverting there. Once we were on course to ZZZ2 and ATC had been alerted; the Captain (who was the pilot monitoring) started to run the Smoke; Fire; or Fumes QRH. I assumed all flying duties while we ran that QRH and gave our FA a briefing. When the Captain saw the QRH said the pilot in command (PIC) needed to be the pilot flying (PF); he assumed flying duties and I finished the QRH. We then proceeded to shoot the ILS in to XXL at ZZZ2. When we landed; ATC asked us to contact Ground where we could talk to Fire and Rescue. They had us stop on [the taxiway] to confirm we did not need to evacuation there. We talked to our FA and he said while the smoke was making it hard to breathe; that we could make it to the terminal. As we were pulling into the terminal; my Primary Flight Display (PFD) started to flicker and we got Pitot 2 INOP. Just as the ground crew plugged in the GPU; the Captain's PFD also started to flicker. However; at that point we were at gate 3 in ZZZ2 and had successfully deplaned. So we turned off the airplane and let the ZZZ2 fire department come on to inspect it. I think the Captain; FA; and I worked well together to make the safest decisions possible. From the time we noticed the smell to landing at ZZZ2; it was probably only 10-15 minutes. The Captain and I divided up the duties so we could set the airplane up for an approach into ZZZ2 and run the QRH. We landed safely at ZZZ2 with no further incident and everyone was safe and had no injuries.

Second reporter narrative

At cruise FL250; the First Officer (FO) and I noticed a burning electrical smell. As we acknowledged the smell; the Flight Attendant (FA) called and stated that there was smoke in the cabin and strong electrical burning smell. I asked the FA if he knew where it was coming from. When the FA proceeded to look; the FO and I performed the memory action items for 'Smoke; Fire or Fumes. Once we donned the masks; the FA return and said that the smoke had cleared and he wasn't sure where it had come from. The FA also tried to feel around for any hot spots but could not find any. The FO and I ran the 'Smoke; Fire; and Fumes QRH. After getting halfway through the QRH; it stated the pilot in command (PIC) perform the landing. The FO and I transferred controls. I had the FO finish the QRH. I then [requested priority handling] with ATC; and told them we were going to ZZZ2. We were given Runway XXL into ZZZ2. We then contacted dispatch through ACARS. I called the FA and gave him an [briefing]; while the FO loaded the flight and got the weather. Upon landing at ZZZ2; we were met by fire and rescue. They followed us to the gate and we immediately deplaned the passengers with no incident or injury. While shutting down the aircraft; the displays began to flicker. I then performed a termination checklist with no further incidents."

Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.