MD80 flight crew reports electrical smoke of unknown origin. Emergency is declared with diversion.

Attributes
ACN	788383
Time
Date	200805
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 34000
Environment
Weather Elements	Ice Rain
Aircraft 1
Controlling Facilities	artcc : zzz.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	788383
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	788384
Events
Anomaly	aircraft equipment problem : critical other anomaly
Independent Detector	other flight crewa
Resolutory Action	flight crew : landed in emergency condition flight crew : declared emergency flight crew : diverted to another airport
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

At FL340 with engine and wing anti-ice on; electrical smoke of unknown origin was detected in both cabin and cockpit. Emergency was declared and flight was diverted to ZZZ. Uneventful landing with crash fire rescue equipment noting no significant problem upon arrival.

Original NASA ASRS Text

Title: MD80 FLT CREW REPORTS ELECTRICAL SMOKE OF UNKNOWN ORIGIN. EMERGENCY IS DECLARED WITH DIVERSION.

Narrative: AT FL340 WITH ENG AND WING ANTI-ICE ON; ELECTRICAL SMOKE OF UNKNOWN ORIGIN WAS DETECTED IN BOTH CABIN AND COCKPIT. EMER WAS DECLARED AND FLT WAS DIVERTED TO ZZZ. UNEVENTFUL LNDG WITH CFR NOTING NO SIGNIFICANT PROB UPON ARR.

Data retrieved from NASA's ASRS site as of May 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.