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.
Synopsis
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.
Second reporter narrative
Approximately 50 miles east of ZZZ 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 ZZZ and have emergency equipment standing by. After running the Smoke and Fumes QRH; we landed normally at approximately 217K gross weight with mild breaking and soft touchdown. Rolled to the end of 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.
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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.