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Pressure Gauge Near APU On 737  
User currently offlineUAL Bagsmasher From United States of America, joined Sep 1999, 2146 posts, RR: 10
Posted (13 years 1 month 18 hours ago) and read 1778 times:

Today I noticed a pressure gauge on the underside of the fuselage of a B737-300. It was underneath the APU. Anyone know the function of this gauge?

7 replies: All unread, jump to last
 
User currently offlineJT-8D From United States of America, joined Dec 2000, 423 posts, RR: 3
Reply 1, posted (13 years 1 month 18 hours ago) and read 1753 times:

Maybe the apu fire bottle pressure? Our planes dont have it, but there are lots of options available..JT

User currently offlineWilcharl From United States of America, joined Jun 2000, 1166 posts, RR: 3
Reply 2, posted (13 years 1 month 18 hours ago) and read 1744 times:

JT8-D wins the prize!
If you go back to my questions on the blow out disks, and there was a link that had a picture of one.


User currently offlineUAL Bagsmasher From United States of America, joined Sep 1999, 2146 posts, RR: 10
Reply 3, posted (13 years 1 month 17 hours ago) and read 1733 times:

Thanks guys!

User currently offlineCdfmxtech From United States of America, joined Jul 2000, 1338 posts, RR: 27
Reply 4, posted (13 years 4 weeks 1 day 23 hours ago) and read 1708 times:

UAL Bags - was the APU compartment door and shroud open...or was it closed. Because if it was open...then u probably saw the APU hourmeter. If not, then there are no pressure gauges. Unless u ARE talkin' about those disks.

User currently offlineYaki1 From , joined Dec 1969, posts, RR:
Reply 5, posted (13 years 4 weeks 1 day 3 hours ago) and read 1693 times:

I agree with JT-8D, our 737's have externally visible pressure gauges for the APU firebottles.

User currently offlineHAWK21M From India, joined Jan 2001, 31667 posts, RR: 56
Reply 6, posted (13 years 3 weeks 4 days 10 hours ago) and read 1670 times:

In case the APU fire bottle Pressure gage is not installed.How do you know that the pressure is below minimum [I know discharge will be indicated by pr sw on Fire control panel in cockpit]
Is there any special checks like weighing the Bottle once a day etc.
Whats the MEL say for a U/s Apu pr gage,is the APU declared U/s.
Anyone.
regds.
HAWK.



Think of the brighter side!
User currently offlineJT-8D From United States of America, joined Dec 2000, 423 posts, RR: 3
Reply 7, posted (13 years 3 weeks 4 days 5 hours ago) and read 1667 times:

Hawk, there is a door on the left side. You have to crawl inside and read the gauge. Its a mess in there too--lol..JT

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