<< >> NASA ASRS Report 714903, October 2006

An EMB140 flight crew experienced electrical burning smell in cockpit. They declared an emergency and returned departure airport.

Attributes
ACN	714903
Time
Date	200610
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 10
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : zzz.tracon tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 140 ER&LR
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	714903
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly
Independent Detector	other flight crewa
Resolutory Action	flight crew : landed as precaution flight crew : declared emergency other
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

This is the event to the best of my memory. On takeoff; we noticed an electrical burning smell in cockpit. We elected to return to ZZZ. We completed all the required emergency checklists and normal checklists and advised the flight attendant to prepare cabin for a return to ZZZ. After completing the epc items; the burning smell ceased but we still elected to continue the precautionary landing. While preparing for the return we realized that we would be landing overweight; we declared the emergency and completed the overweight landing procedures. Upon landing; descent rate was 300 FPM and touchdown was smooth. We taxied back to gate and parked with crash fire rescue equipment in pursuit. They examined cockpit and found no fumes. No further abnormalities were noted and situation ended with no injuries. It was determined the recirculation fan was failing.

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Original NASA ASRS Text

Title: AN EMB140 FLT CREW EXPERIENCED ELECTRICAL BURNING SMELL IN COCKPIT. THEY DECLARED AN EMER AND RETURNED DEP ARPT.

Narrative: THIS IS THE EVENT TO THE BEST OF MY MEMORY. ON TKOF; WE NOTICED AN ELECTRICAL BURNING SMELL IN COCKPIT. WE ELECTED TO RETURN TO ZZZ. WE COMPLETED ALL THE REQUIRED EMER CHKLISTS AND NORMAL CHKLISTS AND ADVISED THE FLT ATTENDANT TO PREPARE CABIN FOR A RETURN TO ZZZ. AFTER COMPLETING THE EPC ITEMS; THE BURNING SMELL CEASED BUT WE STILL ELECTED TO CONTINUE THE PRECAUTIONARY LNDG. WHILE PREPARING FOR THE RETURN WE REALIZED THAT WE WOULD BE LNDG OVERWT; WE DECLARED THE EMER AND COMPLETED THE OVERWT LNDG PROCS. UPON LNDG; DSCNT RATE WAS 300 FPM AND TOUCHDOWN WAS SMOOTH. WE TAXIED BACK TO GATE AND PARKED WITH CFR IN PURSUIT. THEY EXAMINED COCKPIT AND FOUND NO FUMES. NO FURTHER ABNORMALITIES WERE NOTED AND SITUATION ENDED WITH NO INJURIES. IT WAS DETERMINED THE RECIRCULATION FAN WAS FAILING.

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.