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Nate Anderson

ECHS AGAIN!

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Aircraft returned from a LAIRCM mod again... The MFCD will not indicate the ramp/door being in ADS position. We've swapped MFCDs, so MFCD is not the problem. All other ramp/door in ADS position indications are working properly. Literally the ONLY thing that is not happening is ramp/door indication on MFCD. We've checked all plugs/jacks/terminal boards/ diodes etc. and haven't found anything wrong. It's still allowing aircraft to jettison cargo even though it shouldn't without the MFCD indicating that the ramp/door are in the proper position. Any help or ideas would be much appreciated.

Mr. Sickof Chasingmytail

 

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Are you getting an ADS Airdrop Light on the ADS panel in flightdeck when ramp/door are both full open at ADS position?

If so, it is the wiring that gives that signal to the MFCD.

If you dont get ADS light in flightdeck, it is the ramp/ads arm switches.

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Yes aft ads pnl and flight deck lights are indicating only the MFCD is not. It worked for a day or two when we canned an ecbu for another plane but then failed again shortly after...

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