Narrative:

Climbing thorough FL190 we noticed a faint electrical smoke odor. Based on a previous maintenance issue we decided to return to [our departure airport]. [We] declared an emergency with ATC and started a turn back. During the turn the odor escalated to visible smoke; [and we] quickly changed the destination to the nearest suitable airport. [The] flight attendant was informed of the situation and of a possible evacuation once on the ground. Landed gently; made first available turn off of the runway and stopped. Smoke was still present and the order was given to evacuate the airplane; within a few minutes crash fire rescue equipment was present. No injuries were observed [and] passengers were escorted off of the grass to a building onsite. Memory items were quickly accomplished. Appropriate checklists were accomplished as well as directives from the aom and FM were heeded.

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Original NASA ASRS Text

Title: An EMB-145 flight crew declared an emergency; diverted to the nearest suitable airport; and evacuated all SOBs after experiencing smoke and electrical odors in the cockpit and cabin.

Narrative: Climbing thorough FL190 we noticed a faint electrical smoke odor. Based on a previous maintenance issue we decided to return to [our departure airport]. [We] declared an emergency with ATC and started a turn back. During the turn the odor escalated to visible smoke; [and we] quickly changed the destination to the nearest suitable airport. [The] Flight Attendant was informed of the situation and of a possible evacuation once on the ground. Landed gently; made first available turn off of the runway and stopped. Smoke was still present and the order was given to evacuate the airplane; within a few minutes CFR was present. No injuries were observed [and] passengers were escorted off of the grass to a building onsite. Memory items were quickly accomplished. Appropriate checklists were accomplished as well as directives from the AOM and FM were heeded.

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.