What was found
WHILE ENROUTE, CREW RECEIVED A CABIN PRESS SYS 1 FAULT ON ECAM. ALL OTHER INDICATIONS WERE NORMAL SO FLIGHT CONTINUED. APPROX 200 SM THE CREW RECEIVED A RED ECAM MSG STATING, EMER DESCENT TO FL140. CABIN PRESS INDICATED 4600 FT & ALL OTHER INDICATIONS WERE NORMAL. AS A PRECAUTION THE CREW DESCENDED TO FL140 & PUT ON THEIR OXYGEN MASKS. AN EMER WAS NOT DECLARED & THE MASKS IN THE CABIN WERE NOT DROPPED. R & R NR 2 FLIGHT WARNING COMPUTER IAW AMM 31-53-34 & BITE TESTED GOOD IAW TSM 21-31-00-810-809A.