Narrative:

Enroute at cruise; fas (flight attendants) reported it being very warm in aft cabin and strange fumes. We placed temperature controls in full cold and continued to monitor. They reported fumes continued and we turned off recirculate fans and referred to QRH for procedural guidance. Flight attendant reported fumes were not clearing and getting worse. Captain conferred with company and I continue to fly aircraft and we commenced reviewing 'smoke; fumes; and fire' in cabin checklist. Fas reported fumes were worsening and aft cabin lights were flickering on and off. We decided as a crew to divert. Captain conferred with company and communicated with fas monitoring the fume situation. Captain executed smoke; fumes and fire checklist as I obtained ATIS and executed divert checklist as best as possible considering time shortage. Fas reported smoke present in aft part of cabin as we got nearer to [divert field]. Captain decided and first officer (first officer) concurred; that upon landing we would clear the runway and then evacuate the aircraft. We cleared the runway; stopped the aircraft on a taxiway; and accomplished the evacuation checklist. We then gathered passengers in two groups and assessed for injuries. There were five to seven injuries that we were aware of that received some level of medical treatment.

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Original NASA ASRS Text

Title: B737NG First Officer reported diverting after Flight Attendants advised of fumes and smoke in the cabin.

Narrative: Enroute at cruise; FAs (Flight Attendants) reported it being very warm in aft cabin and strange fumes. We placed temperature controls in full cold and continued to monitor. They reported fumes continued and we turned off recirculate fans and referred to QRH for procedural guidance. FA reported fumes were not clearing and getting worse. Captain conferred with Company and I continue to fly aircraft and we commenced reviewing 'Smoke; Fumes; and Fire' in cabin checklist. FAs reported fumes were worsening and aft cabin lights were flickering on and off. We decided as a crew to divert. Captain conferred with Company and communicated with FAs monitoring the fume situation. Captain executed Smoke; Fumes and Fire Checklist as I obtained ATIS and executed Divert Checklist as best as possible considering time shortage. FAs reported smoke present in aft part of cabin as we got nearer to [divert field]. Captain decided and FO (First Officer) concurred; that upon landing we would clear the runway and then evacuate the aircraft. We cleared the runway; stopped the aircraft on a taxiway; and accomplished the Evacuation Checklist. We then gathered Passengers in two groups and assessed for injuries. There were five to seven injuries that we were aware of that received some level of medical treatment.

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.