A B757 flight crew declares an emergency and lands after smelling smoke apparently caused by an avio...

Attributes
ACN	569585
Time
Date	200212
Day	Sat
Local Time Of Day	0001 To 0600
Place
Locale Reference	navaid : lit.vortac
Altitude	msl single value : 370
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zme.artcc
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : atp pilot : instrument pilot : commercial
Experience	flight time last 90 days : 180 flight time total : 20000 flight time type : 1200
ASRS Report	569585
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly
Independent Detector	aircraft equipment other aircraft equipment : equip cooling ovat light other flight crewa other flight crewb other other : 4 fa
Resolutory Action	flight crew : declared emergency flight crew : landed in emergency condition
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

At cruise, I smelled an electrical odor. The flight attendants also smelled it, and stated that it was worse in the aft cabin. I subsequently got an equipment cooling overhead light and EICAS message. We ran the appropriate checklist and when 'altn' was selected on the equipment tooling panel, the electrical smell got worse in the cockpit. I declared an emergency and diverted to kmem. After clearing the runway and conferring with the fire marshall, I taxied to the gate. The fire marshal inspected the aircraft visually and with an infrared sensor. There was no damage to the aircraft and no injuries to any crew member or passenger.

Original NASA ASRS Text

Title: A B757 FLC DECLARES AN EMER AND LANDS AFTER SMELLING SMOKE APPARENTLY CAUSED BY AN AVIONICS COOLING FAN.

Narrative: AT CRUISE, I SMELLED AN ELECTRICAL ODOR. THE FLT ATTENDANTS ALSO SMELLED IT, AND STATED THAT IT WAS WORSE IN THE AFT CABIN. I SUBSEQUENTLY GOT AN EQUIP COOLING OVERHEAD LIGHT AND EICAS MESSAGE. WE RAN THE APPROPRIATE CHKLIST AND WHEN 'ALTN' WAS SELECTED ON THE EQUIP TOOLING PANEL, THE ELECTRICAL SMELL GOT WORSE IN THE COCKPIT. I DECLARED AN EMER AND DIVERTED TO KMEM. AFTER CLRING THE RWY AND CONFERRING WITH THE FIRE MARSHALL, I TAXIED TO THE GATE. THE FIRE MARSHAL INSPECTED THE ACFT VISUALLY AND WITH AN INFRARED SENSOR. THERE WAS NO DAMAGE TO THE ACFT AND NO INJURIES TO ANY CREW MEMBER OR PAX.

Data retrieved from NASA's ASRS site as of July 2007 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.

A B757 flight crew declares an emergency and lands after smelling smoke apparently caused by an avionics cooling fan.