As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#2073, JFK-LAX. (ETOPS) 'ON DESCENT ENG 2 AIR SYS FAULT; ACCOMPLISHED TSM 75-26-00-810-818A STEP 7 REMOVED AND REPLACED VALVE BUFFER AIR PER AMM 75-26-02-000-801 AND 75-26-02-400-801, LEAK CHECK AND ENG ABOVE IDLE 80% N1 REQUIRED (PERFORMED TEST 17 TEST ABOVE IDLE ON #2 ENG ALL TEST CHECKED OK NO ENG 2 AIR SYS FAULT ON ECAM NO PFR GENERATED WITH ANY FAULTS GROUND VERIFICATION CHECKED SATISFACTORY WITH NO FAULTS A/C OK FOR CONTINUED SVC).