Narrative:

On departure; while climbing in icing conditions with engine and wing anti icing on; a burning plastic odor presented in the cockpit and cabin. We turned off galley power and cabin recirculation fan; but smell continued. Shortly after turning off engine and wing anti icing; the odor abated. We concluded that the cause was something to do with anti ice system. We called dispatch to advise and requested a mechanic meet the flight. We returned galley power and recirculation fan to normal operation.on descent; prior to entering precipitation; flight attendants once again reported smelling the odor; and that was corroborated by first officer. We took initial steps of donning O2 masks and establishing communication; turned off galley power; recirculation fan and high pressure bleed off on AC packs. We declared an emergency with ATC and requested priority for runway 30. I communicated with the flight attendants to keep me advised of any changes in the cabin odor and that we were getting priority handling. I briefed them for a normal landing and no evacuation unless the situation deteriorated. Finally; I made a PA to the passengers to explain to not be alarmed if they see airport safety equipment around the aircraft after landing.the first officer made a normal landing and we rolled out to end of runway where crash fire rescue equipment looked us over and advised all was normal. We then taxied to the gate.

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Original NASA ASRS Text

Title: An MD80 landed under emergency conditions when burning odors were detected on board.

Narrative: On departure; while climbing in icing conditions with engine and wing anti icing on; a burning plastic odor presented in the cockpit and cabin. We turned off galley power and cabin recirculation fan; but smell continued. Shortly after turning off engine and wing anti icing; the odor abated. We concluded that the cause was something to do with anti ice system. We called Dispatch to advise and requested a mechanic meet the flight. We returned galley power and recirculation fan to normal operation.On descent; prior to entering precipitation; Flight Attendants once again reported smelling the odor; and that was corroborated by First Officer. We took initial steps of donning O2 masks and establishing communication; turned off galley power; recirculation fan and high pressure bleed off on AC packs. we declared an emergency with ATC and requested priority for Runway 30. I communicated with the Flight Attendants to keep me advised of any changes in the cabin odor and that we were getting priority handling. I briefed them for a normal landing and no evacuation unless the situation deteriorated. Finally; I made a PA to the passengers to explain to not be alarmed if they see airport safety equipment around the aircraft after landing.The First Officer made a normal landing and we rolled out to end of runway where CFR looked us over and advised all was normal. We then taxied to the gate.

Data retrieved from NASA's ASRS site as of April 2012 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.