E-TRONS,MRFISH,
UAIR has been flying the A320 type for a good while now and the ONLY emergency landing regarding the flap system was on an aircraft fresh out of a 3rd party maintenance visit.
You either left before PIT base maintenance started the Airbus 320 family S checks or forgot a couple of airplanes. 714 had the same landing gear issue as the ones that came out of BFM. Also, 716 had the same flap problem experienced multiple times out of of our third party maintenance provider. It even declared an emergency landing and had the fire trucks standing by, right in PIT. They were both done by our very skilled mechanics at USAirways.
Hmm.. how does that go against your "ONLY" statement above?