Narrative:

After takeoff I noticed amber X's on the pfd (indicating a loss of normal law protections) just as I said... 'It looks like...' then bing we got an ECAM; protections lost altitude law. I announced the ECAM; captain said he had aircraft and radios; I did the ECAM; cleared screens notified dispatch/maintenance via voice. Told ATC we were diverting but upon checking weather decided returning was better option. Returned to field after burning off fuel and running numerous checklist and over weight landing. Captain did a great job of notifying flight attendants and had a smooth touch down.

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Original NASA ASRS Text

Title: A319 flight crew reports aircraft going into Alternate Law shortly after takeoff. After discussion and and checklists crew elects to declare an emergency and return to departure airport.

Narrative: After takeoff I noticed amber X's on the PFD (indicating a loss of Normal Law protections) just as I said... 'it looks like...' then bing we got an ECAM; protections lost ALT LAW. I announced the ECAM; Captain said he had aircraft and radios; I did the ECAM; cleared screens notified dispatch/maintenance via voice. Told ATC we were diverting but upon checking weather decided returning was better option. Returned to field after burning off fuel and running numerous checklist and over weight landing. Captain did a great job of notifying flight attendants and had a smooth touch down.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.