Narrative:

Flight was uneventful until approximately 70 mi east of ZZZ. During descent through approximately 12000 ft; the first officer said he smelled an electrical burning smell. I agreed. We then proceeded to complete the immediate action qrc items for smoke in cabin/cockpit and don our oxygen masks and establish crew communications. During this time; haze began forming in the cockpit. I delegated the first officer to fly and talk with ATC while I completed the qrc. I then called the cabin and asked if they smelled anything burning. Our purser confirmed the presence of noxious fumes. I told her I would get right back with her. The first officer declared an emergency with ATC. The first officer and I collectively made the decision to proceed direct ZZZ. At our present position and time; ZZZ was the nearest suitable field. Once our checklists were completed; and we were headed directly to ZZZ; I coordination with the flight attendants and gave them the nature; time; and preparation for evacuate/evacuation instructions pertaining to our emergency. Our purser instructed us that the flight attendants were feeling dizzy; and were using the portable oxygen bottles to prepare the cabin for evacuate/evacuation. Noting the dizziness; I deployed the passenger oxygen masks manually from the cockpit. I sent an ACARS message to dispatch '7700 smoke in cockpit' and squawked 7700. With the few remaining mins after all the coordination; the first officer and I worked together and ensured we had done everything we could to land safely; and reviewed our actions to be completed once we had landed. The first officer landed. I made a PA announcement to remain in your seats to avoid evacuate/evacuation with engines running and the aircraft moving. I took control of the aircraft at approximately 60 KTS. I brought the aircraft to a stop on taxiway. I set the parking brake and opened my sliding window. The first officer completed the qrc for evacuate/evacuation while I backed him up through the steps. We then initiated the evacuate/evacuation. Prior to leaving the aircraft; the purser checked with us to make sure we were alright; and then she evacuate/evacuationed. I then delegated the first officer to take overall command of the passenger outside the aircraft. When the first officer and I exited the cockpit; all the passenger and flight attendants were evacuate/evacuationed. The first officer evacuate/evacuationed; and proceeded to carry out my instructions. I then proceeded to check each seat for any passenger and eventually evacuate/evacuationed at 2L. When I reached the passenger; the first officer had all the passenger safely away from the aircraft and ground equipment. They were huddled together on the grass. I resumed control of the passenger; and made an announcement explaining what had happened and ensured that there were no injuries. The first officer and I then coordination with ground personnel to take our passenger to the terminal. Once in the terminal I debriefed with the flight attendants and first officer. I then proceeded to where the passenger were assembled in the terminal and answered questions and ensured their safety.

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Original NASA ASRS Text

Title: A320 FLT CREW HAS FUMES IN COCKPIT; DECLARES AN EMER AND LANDS.

Narrative: FLT WAS UNEVENTFUL UNTIL APPROX 70 MI E OF ZZZ. DURING DSCNT THROUGH APPROX 12000 FT; THE FO SAID HE SMELLED AN ELECTRICAL BURNING SMELL. I AGREED. WE THEN PROCEEDED TO COMPLETE THE IMMEDIATE ACTION QRC ITEMS FOR SMOKE IN CABIN/COCKPIT AND DON OUR OXYGEN MASKS AND ESTABLISH CREW COMS. DURING THIS TIME; HAZE BEGAN FORMING IN THE COCKPIT. I DELEGATED THE FO TO FLY AND TALK WITH ATC WHILE I COMPLETED THE QRC. I THEN CALLED THE CABIN AND ASKED IF THEY SMELLED ANYTHING BURNING. OUR PURSER CONFIRMED THE PRESENCE OF NOXIOUS FUMES. I TOLD HER I WOULD GET RIGHT BACK WITH HER. THE FO DECLARED AN EMER WITH ATC. THE FO AND I COLLECTIVELY MADE THE DECISION TO PROCEED DIRECT ZZZ. AT OUR PRESENT POS AND TIME; ZZZ WAS THE NEAREST SUITABLE FIELD. ONCE OUR CHKLISTS WERE COMPLETED; AND WE WERE HEADED DIRECTLY TO ZZZ; I COORD WITH THE FLT ATTENDANTS AND GAVE THEM THE NATURE; TIME; AND PREPARATION FOR EVAC INSTRUCTIONS PERTAINING TO OUR EMER. OUR PURSER INSTRUCTED US THAT THE FLT ATTENDANTS WERE FEELING DIZZY; AND WERE USING THE PORTABLE OXYGEN BOTTLES TO PREPARE THE CABIN FOR EVAC. NOTING THE DIZZINESS; I DEPLOYED THE PAX OXYGEN MASKS MANUALLY FROM THE COCKPIT. I SENT AN ACARS MESSAGE TO DISPATCH '7700 SMOKE IN COCKPIT' AND SQUAWKED 7700. WITH THE FEW REMAINING MINS AFTER ALL THE COORD; THE FO AND I WORKED TOGETHER AND ENSURED WE HAD DONE EVERYTHING WE COULD TO LAND SAFELY; AND REVIEWED OUR ACTIONS TO BE COMPLETED ONCE WE HAD LANDED. THE FO LANDED. I MADE A PA ANNOUNCEMENT TO REMAIN IN YOUR SEATS TO AVOID EVAC WITH ENGS RUNNING AND THE ACFT MOVING. I TOOK CTL OF THE ACFT AT APPROX 60 KTS. I BROUGHT THE ACFT TO A STOP ON TXWY. I SET THE PARKING BRAKE AND OPENED MY SLIDING WINDOW. THE FO COMPLETED THE QRC FOR EVAC WHILE I BACKED HIM UP THROUGH THE STEPS. WE THEN INITIATED THE EVAC. PRIOR TO LEAVING THE ACFT; THE PURSER CHKED WITH US TO MAKE SURE WE WERE ALRIGHT; AND THEN SHE EVACED. I THEN DELEGATED THE FO TO TAKE OVERALL COMMAND OF THE PAX OUTSIDE THE ACFT. WHEN THE FO AND I EXITED THE COCKPIT; ALL THE PAX AND FLT ATTENDANTS WERE EVACED. THE FO EVACED; AND PROCEEDED TO CARRY OUT MY INSTRUCTIONS. I THEN PROCEEDED TO CHK EACH SEAT FOR ANY PAX AND EVENTUALLY EVACED AT 2L. WHEN I REACHED THE PAX; THE FO HAD ALL THE PAX SAFELY AWAY FROM THE ACFT AND GND EQUIP. THEY WERE HUDDLED TOGETHER ON THE GRASS. I RESUMED CTL OF THE PAX; AND MADE AN ANNOUNCEMENT EXPLAINING WHAT HAD HAPPENED AND ENSURED THAT THERE WERE NO INJURIES. THE FO AND I THEN COORD WITH GND PERSONNEL TO TAKE OUR PAX TO THE TERMINAL. ONCE IN THE TERMINAL I DEBRIEFED WITH THE FLT ATTENDANTS AND FO. I THEN PROCEEDED TO WHERE THE PAX WERE ASSEMBLED IN THE TERMINAL AND ANSWERED QUESTIONS AND ENSURED THEIR SAFETY.

Data retrieved from NASA's ASRS site as of January 2009 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.