"In their fourth and last press conference on Aug 17th the NTSB reported, the flight data recorder data have been validated. First results suggests the flight control inputs and flight control surface movements correlate, the engine parameters were normal. The flight data recorder stopped a few seconds prior to the cockpit voice recorder. The autopilot was engaged until the end of flight data recording end, the speed was about 140 KIAS as selected by the autoflight system consistent with the expected approach speed. The flight data recorder also confirmed the Sinkrate GPWS alerts. A checkflight by FAA on the PAPI system confirmed the PAPIs were indicating correctly to 1/100th of a degree. The aircraft had been updated to comply with all service bulletins and airworthiness directives."
From the updated AvHerald article. Also several new pictures accompany the article...