ENVIRONMENTAL SYSTEM SMOKE OR ODOR
1. Oxygen Masks - DON and EMER.
2. Oxygen Microphone Switches - MIC OXY MASK.
3. Air Conditioner Switch - OFF.
4. Defog Fan - OFF.
5. Air Source Selector - ISOLATE SOURCE BY SELECTING: L.
NOTE
•
Air source selector must remain in each position long enough to allow adequate system purging to determine the source of smoke.
IF SMOKE CONTINUES
6. Air Source Selector - R (allow time for smoke to dissipate).
7. Altitude - DESCEND or execute EMERGENCY DESCENT procedures if required.
8. Air Source Selector - FRESH AIR (cabin will depressurize).
9. If necessary - REFER to SMOKE REMOVAL procedure.