A B757 crew detected an acrid electrical smell; so after completing the QRH the crew declared an eme...

Attributes
ACN	954978
Time
Date	201106
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Air Conditioning Distribution System
Person 1
Function	Pilot Not Flying
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 14000 Flight Crew Type 8000
Person 2
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 240 Flight Crew Total 20000 Flight Crew Type 3000
Events
Anomaly	Aircraft Equipment Problem Critical Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

In cruise at FL340; the crew smelled a strong acrid electrical smell in both the cockpit and aft cabin. Flight attendants were consulted and confirmed smells with increased intensity. An emergency was declared with ATC and dispatch was notified. A decision was made to descend into a nearby airport and have emergency equipment standing by. After running the smoke and fumes QRH checklist; we landed normally at approximately 217;000 pounds gross weight with mild breaking and soft touchdown. Rolled to the end of the runway; where emergency firefighter crews inspected the aircraft and found no visible evidence of smoke or fire. We then taxied to the gate where we were inspected on the interior by the fire crew. Maintenance was then brought to the aircraft and eqpt clg flow and eqpt clg fan status messages were displayed with eqpt ovht caution message while troubleshooting. Also; the equipment cooling supply fan circuit breaker popped while at the gate. All SOP's were followed and the aircraft was left in an un-powered state for overnight parking.

Original NASA ASRS Text

Title: A B757 crew detected an acrid electrical smell; so after completing the QRH the crew declared an emergency and diverted to a nearby airport where the EICAS EQPT OVHT alert; the EQPT CLG FAN; and EQPT CLG FLOW status messages were seen.

Narrative: In cruise at FL340; the crew smelled a strong acrid electrical smell in both the cockpit and aft cabin. Flight attendants were consulted and confirmed smells with increased intensity. An emergency was declared with ATC and Dispatch was notified. A decision was made to descend into a nearby airport and have emergency equipment standing by. After running the smoke and fumes QRH checklist; we landed normally at approximately 217;000 LBS gross weight with mild breaking and soft touchdown. Rolled to the end of the runway; where emergency firefighter crews inspected the aircraft and found no visible evidence of smoke or fire. We then taxied to the gate where we were inspected on the interior by the fire crew. Maintenance was then brought to the aircraft and EQPT CLG FLOW and EQPT CLG FAN status messages were displayed with EQPT OVHT caution message while troubleshooting. Also; the equipment cooling supply fan circuit breaker popped while at the gate. All SOP's were followed and the aircraft was left in an un-powered state for overnight parking.

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.

A B757 crew detected an acrid electrical smell; so after completing the QRH the crew declared an emergency and diverted to a nearby airport where the EICAS eqpt ovht alert; the eqpt clg fan; and eqpt clg flow status messages were seen.