Narrative:

Smoke and fumes in cockpit. We suspect a malfunction occurred in flight with left acm (air cycle machine). This created the smoke and fumes in cockpit.

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Original NASA ASRS Text

Title: B757-200 flight crew reported they landed in emergency condition because of smoke and fumes in the cockpit that were later traced to suspected Air Cycle Machine failure.

Narrative: Smoke and Fumes in cockpit. We suspect a malfunction occurred in flight with left ACM (Air Cycle Machine). This created the smoke and fumes in 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.