Narrative:

Fire alarm went off due to smoke at 4L we all smelled electrical; like a hairdryer burning up x10. Used a halon but water came out of it. Got another halon extinguisher used in lav ceiling it also was putting out water not halon. Prepped cabin for [diversion]. Fire dept entered via 4L; deplaned passengers out 4L into buses. How many other halon extinguishers are there out there that do not work!!??? Fire dept said when halon's get old; the halon turns to a watery substance and should never be used in an electrical situation.

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Original NASA ASRS Text

Title: B757 Flight Attendant reported difficulty in fighting an in-flight electrical fire with an expired fire extinguisher.

Narrative: Fire alarm went off due to smoke at 4L we all smelled electrical; like a hairdryer burning up x10. Used a halon but water came out of it. Got another halon extinguisher used in lav ceiling it also was putting out WATER NOT halon. Prepped cabin for [diversion]. Fire dept entered via 4L; deplaned passengers out 4L into buses. How many other halon extinguishers are there out there that DO NOT WORK!!??? Fire dept said when halon's get old; the halon turns to a watery substance and should never be used in an electrical situation.

Data retrieved from NASA's ASRS site 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.