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gumme
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 Posted: Jul 03, 2012 - 07:43 PM
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Newbie
Joined: Jun 26, 2011 - 01:14 PM
Posts: 14
Status: Offline
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Hallo all you Viper fixer out there.
Have an old blok 15 with Goodrich / RSL's ABC brake system.
Pilot's reporting poor braking action sometimes at 'normal' taxispeeds after landing.
It's reported two times in a 200 hours period. Brake assy 207 hours since new.
Symtoms are - normal braking at landing, and initial at backtrac, but at light braking to keep speed down, the left brake loose aprox 50% of brake performens, and makes squeling sound, or something like allmost pulsating braking action.
When speed are low eg manuvering around in sqd area no problems. Its only at what they say 'normal taxispeed'
Have two nice readouts on the dianostic system with no fail, and run all the brake test we can,- nothing wrong with the elektrical / hyd.
Hawe anyone out there expirenced something alike ?
I expect the phenomenon to be brake squel (searched on net), but none of our tecnical orders describes it, and what to do.
We swapped the brake assy lh to rh and oppesit, an looking fwd to see if the phenomenon changes sides 
Gumme |
Last edited by gumme on Jul 03, 2012 - 10:10 PM; edited 1 time in total
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Sponsor
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 Posted: Jun 19, 2013 - 11:21 PM
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F-16.net Sponsor
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Last edited by gumme on Jul 03, 2012 - 10:10 PM; edited 1 time in total
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VarkVet
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Posted: Jul 03, 2012 - 09:39 PM
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Elite 1K
Joined: Oct 30, 2006 - 04:31 AM
Posts: 1443
Status: Offline
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| If the braking issue didn’t move to the other side after the brake swap, I would have to suspect an intermittent hydraulic bypass within the brake control valve. |
_________________
My eyes have seen the glory of the Lord and the esthetics of the Flightline
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gumme
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Posted: Jul 03, 2012 - 10:09 PM
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Newbie
Joined: Jun 26, 2011 - 01:14 PM
Posts: 14
Status: Offline
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Did the swap today, and the jet will fly tomorow. It might go some flights before it happend again. Staticks says aprox 50 flights or so.
Can't wait to see if the phenomenon changes to the righthand side. :-/ |
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JoeSambor
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Posted: Jul 04, 2012 - 10:57 AM
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Forum Veteran
Joined: Dec 28, 2004 - 05:56 AM
Posts: 751
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| Gee, if only you had a Tech Rep or Engineering Staff that you could ask for assistance...oh wait, you do. |
_________________
Joe Sambor
LM Aero Field Service Engineer
Woensdrecht Logistics Center, The Netherlands
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gumme
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Posted: Jul 04, 2012 - 03:41 PM
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Newbie
Joined: Jun 26, 2011 - 01:14 PM
Posts: 14
Status: Offline
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- Engineering Staff that you could ask for assistance...oh wait, you do.
Who ? Name - number - adress plz.
And by the way.... the jet did two sorties today. No problems.  |
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