PPRuNe Forums - Search Results
PPRuNe Forums

Go Back  PPRuNe Forums > Search Forums
Reload this Page >

Search Results

Register
FAQ
Calendar
Wikiposts
Today's Posts
Search
Vendor Directory
Search: Posts Made By: SAMPUBLIUS
Showing results 1 to 12 of 12
Search took 0.00 seconds.
Forum: Tech Log
28th May 2015, 14:25
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

Unhappy RE powered GCU

Capn boggs said

Capn may have a valid point !!

IMO, since the APU is usually shut down in mid flight, it may be unlikely that the APU 2 GENS will have the same time count.

Meanwhile...
Forum: Tech Log
28th May 2015, 04:00
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

Question re 28 VDC from battery

So if 4 gens get bricked due to timer- then the AP must be started via battery, which also powers igniter - and then APU can keep the igniter and battery charged and ?? going.

Even so - IMO the...
Forum: Tech Log
28th May 2015, 03:01
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

About Engine Ignition

Sure, but how is the 27-28 V DC generated ?? - AFIK it is via inverter from AC system.

IOW if GEN is shut down ( still rotates but no output ), what about DC ??
Forum: Tech Log
27th May 2015, 21:52
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

Question About ALL Generators /Power on line for 248 days

Peekay4 said

yet the FAA doc first page says very clearly


https://s3.amazonaws.com/public-inspection.federalregister.gov/2015-10066.pdf
Forum: Tech Log
27th May 2015, 04:26
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

Danger Probability vs Possibility

Well the FAA did get concerned. And it is still NOT clear if only one continuous run generator/power system/ground power connection for that time would trip ALL off line.

The fact that a ( ...
Forum: Tech Log
26th May 2015, 14:29
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

Grrr Computers are Super-Fast Idiots

Amen Amen.

To err is human- to really screw up takes a computer.

The above comment is/was the point of my initial post in this thread.
Other comments along that line also apply.

There...
Forum: Tech Log
3rd May 2015, 02:01
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

Talking RE OVERFLOW BUG

High and Flighty/FAA said

But normally there is a few second or minutes between start of one engine and the second engine. And then the APU will be shut off after climbout . Which then leads...
Forum: Tech Log
2nd May 2015, 15:35
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

Talking yes really

The counter involved also counts when ground power is connected as in prior to APU shutdown.
:O
Forum: Tech Log
2nd May 2015, 15:27
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

ON POWERED TIME

Methinks thou art missing a point. Power on time also includes when groun dpower is connected. Early on the 787 took a long time to boot up computers and system from power off. So as i understand...
Forum: Tech Log
1st May 2015, 14:41
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

about power on issues 787

actually, its not just the generators on , its also ground power

from WSJ extract
Quote:
A Federal Aviation Administration safety directive that became public on Thursday reveals that Boeing’s...
Forum: Tech Log
1st May 2015, 04:36
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

and from WSJ

Yikes !

from WSJ extract
Forum: Tech Log
30th Apr 2015, 17:39
Replies: 98
Views: 36,779
Posted By SAMPUBLIUS

Exclamation 787 ELECTRICAL ISSUE

GEEZE- IMO any software that allows all systems to fail at the same time- even under extreme unlikely events is fubar !
FAA orders new 787 electrical fix to prevent power failure - 4/30/2015 -...
Showing results 1 to 12 of 12


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.