Originally Posted by Sigwx

There would certainly be a noticeable effect if one list part of ones flight control surfaces. To give an idea a UK AAIB (Air Accident Investigation Branch) report into a smoke/fire/fumes and flight control problem event back in 2003 highlighted that two small flap fairing panels on one side of a 757 caused enough aerodynamic upset/misbalance as to require the flight crew to need half or more control wheel input to maintain wings level on approach, with flaps 25 and a relatively slow speed. Multiply the effect due to higher TAS (true airspeed) at altitude and I have no doubt flutter and roll would occur. But that said hopefully this is just one piece found so far of what will eventually be more pieces leading to a debris site and, fingers crossed, FDR and CVR recovery.
There is no data base as such, but any large aircraft that looses that large a piece of it's structure would require an investigation by the relevant authority and no doubt a report would be published as that mentioned earlier. Such events are 'reportable occurances' under most (if not all) aviation authorities regulations.