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High OAT Fire Bottle Thermal Discharge  
User currently offlineUAL Bagsmasher From United States of America, joined Sep 1999, 2153 posts, RR: 9
Posted (8 years 11 months 3 days 23 hours ago) and read 2726 times:

Has anyone else experienced fire bottles thermally discharging due to high ambient temps? We've seen a few cargo bottles blow their thermal relief plugs over the past month due to high ambient temps. Is the CRJ-200 the only aircraft that has this problem in the summer? The high heat level in the APU bay is just too much for the bottles to withstand.

3 replies: All unread, jump to last
User currently offlinePhxpilot From United States of America, joined Jul 2005, 82 posts, RR: 2
Reply 1, posted (8 years 11 months 3 days 19 hours ago) and read 2687 times:

YV had a problem with that on the CRJ2. A policy was instituted prohibiting running the APU on the ground because of that issure. Supposedly air and power would "automatically" be connected upon arrival. It didn't happen. We would sit and sweat with no air for 10 minutes in PHX with a 110 OAT. Still no air so started the APU. That great idea lasted about a month.

User currently offlineHAWK21M From India, joined Jan 2001, 31875 posts, RR: 54
Reply 2, posted (8 years 11 months 3 days 7 hours ago) and read 2632 times:

Why was a shielding not provided on the Firebottle in that hot zone.

Think of the brighter side!
User currently offlineUAL Bagsmasher From United States of America, joined Sep 1999, 2153 posts, RR: 9
Reply 3, posted (8 years 11 months 2 days 23 hours ago) and read 2589 times:

Not sure why they didn't insulate it better. But with the APU running and high OAT, it gets mighty toasty up there Smile

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