Narrative:

While at cruise altitude; 33;000 ft; the left engine fire warning sounded and would not silence. We declared an emergency; accomplished QRH and diverted. The only abnormal indication was left fuel temperature high. All other parameters normal. [We] landed over weight at 133.5 pounds. We landed uneventfully; confirmed no fire on the ground; briefed flight attendants and communicated with crash fire rescue equipment who followed us to the ramp.

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Original NASA ASRS Text

Title: An MD-82 flight crew declared an emergency and diverted to a nearby airport when they received an engine fire warning that could not be silenced. Inspection on the ground indicated the warning was false.

Narrative: While at cruise altitude; 33;000 FT; the left engine fire warning sounded and would not silence. We declared an emergency; accomplished QRH and diverted. The only abnormal indication was left fuel temperature high. All other parameters normal. [We] landed over weight at 133.5 LBS. We landed uneventfully; confirmed no fire on the ground; briefed flight attendants and communicated with CFR who followed us to the ramp.

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.