Narrative:

While climbing through FL290; we got a 'cargo bottle low' caution message. As the pilot monitoring; I switched the radios to the captain and ran the QRH; which made the light go out. After discussion with maintenance and between the captain and myself; we decided to divert to ZZZ because a fire could cause the sensors to burn out. I was given the command to declare an emergency; and we were given a spiraling descent to 10000 ft and go directly to ZZZ when able. I got the ATIS; looked up thrust settings; contacted ZZZ operations; talked to ATC; and ran all checklists. When I finished; we were on a 5 mi final. We were on a faster final than usual; but I figured the captain wanted to get the aircraft on the ground as soon as possible in case of an actual fire and I agree with his decision. As a result; we landed fast and long and he braked immediately. Once off the runway; I asked the fire crews if they saw any smoke and they didn't. Once we got near the gate; the fire crews informed us there was smoke coming from the brakes. Shortly after; we got a 'brake overheat' message immediately followed by a btms of 9. The captain decided to evacuate/evacuation the passenger; and after they were evacuate/evacuationed and the aircraft shut down; the captain began the appropriate phone calls and paperwork. Once that was done; we got together as a crew; debriefed; and agreed to continue to ZZZ1. After the brakes cooled; we proceeded uneventfully to ZZZ1.

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Original NASA ASRS Text

Title: A CRJ200 CARGO FIRE BOTTLE LOW PRESSURE LIGHT ILLUMINATED. THE CREW DECLARED AN EMER AND DIVERTED TO A NEARBY ARPT. THE BRAKES OVERHEATED AFTER A FAST LANDING. THE ACFT WAS EVACUATED.

Narrative: WHILE CLBING THROUGH FL290; WE GOT A 'CARGO BOTTLE LOW' CAUTION MESSAGE. AS THE PLT MONITORING; I SWITCHED THE RADIOS TO THE CAPT AND RAN THE QRH; WHICH MADE THE LIGHT GO OUT. AFTER DISCUSSION WITH MAINT AND BTWN THE CAPT AND MYSELF; WE DECIDED TO DIVERT TO ZZZ BECAUSE A FIRE COULD CAUSE THE SENSORS TO BURN OUT. I WAS GIVEN THE COMMAND TO DECLARE AN EMER; AND WE WERE GIVEN A SPIRALING DSCNT TO 10000 FT AND GO DIRECTLY TO ZZZ WHEN ABLE. I GOT THE ATIS; LOOKED UP THRUST SETTINGS; CONTACTED ZZZ OPS; TALKED TO ATC; AND RAN ALL CHKLISTS. WHEN I FINISHED; WE WERE ON A 5 MI FINAL. WE WERE ON A FASTER FINAL THAN USUAL; BUT I FIGURED THE CAPT WANTED TO GET THE ACFT ON THE GND ASAP IN CASE OF AN ACTUAL FIRE AND I AGREE WITH HIS DECISION. AS A RESULT; WE LANDED FAST AND LONG AND HE BRAKED IMMEDIATELY. ONCE OFF THE RWY; I ASKED THE FIRE CREWS IF THEY SAW ANY SMOKE AND THEY DIDN'T. ONCE WE GOT NEAR THE GATE; THE FIRE CREWS INFORMED US THERE WAS SMOKE COMING FROM THE BRAKES. SHORTLY AFTER; WE GOT A 'BRAKE OVERHEAT' MESSAGE IMMEDIATELY FOLLOWED BY A BTMS OF 9. THE CAPT DECIDED TO EVAC THE PAX; AND AFTER THEY WERE EVACED AND THE ACFT SHUT DOWN; THE CAPT BEGAN THE APPROPRIATE PHONE CALLS AND PAPERWORK. ONCE THAT WAS DONE; WE GOT TOGETHER AS A CREW; DEBRIEFED; AND AGREED TO CONTINUE TO ZZZ1. AFTER THE BRAKES COOLED; WE PROCEEDED UNEVENTFULLY TO ZZZ1.

Data retrieved from NASA's ASRS site as of May 2009 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.