What was found
FLT#2289, AMS-JFK. (ETOPS) 'DURING ENTIRE FLIGHT WE GOT GPS PRIMARY LOST INDICATING NAV ACCURACY LOW; REMOVAL AND REPLACEMENT OF FMGC #2 REF AMM 22-83-34. AFS OPS CHECK REF AMM 22-96-00 PASSED. NO FAULT PRESENT. REF LP 3828366, ITEM 2 (ACCOMPLISHED LAND CAT III TEST PER AMM 22-97-00. TEST PASSED. A/C CERTIFIED FOR CAT III STATUS) FOR LAND CAT III TEST. ETOPS GROUND VERIFICATION REQUIRED. REF LO 3828368, ITEM 1 (AFS TEST PASSED REF AMM 22-96-00. REF LP # 3828365 ITEM #1. LAND CAT III TEST PASSED, REF AMM 22-97-00 REF LP # 3828366 ITEM #2. A/C REMAINS ETOPS CERTIFIED).'