What was found
CREW DECLARED AN EMERGENCY AND ACFT RETURN TO DEPARTURE. ENG 1 STALL, ECAM & LOSS OF THRUST CLIMBING 12000/300KTS. ENG 1 DECREASED TO IDLE THRUST: EGT 440 N2-59 PERCENT, EPPR .927 EF 700 N1-25 PERCENT THRUST DID NOT INCREASE WITH THROTTLE ADVANCEMENT, GEN 1 FAIL FOLLOWED BY ENG 1 FAIL AS ACFT DECREASED BELOW 200 KTS, ENG 1 MASTER SELECTED OFF IAW ECAM LANDING, WT BELOW 142,000. ENG 1 OVERSPEED PROT FAULT INDICATED AFTER LANDING. R & R ENG NR 1 FMU IAW AMM 73-22-52. ACCCOMPLISHED ENG NR 1 POWER ASSURANCE TEST 11 IAW AMM 71-00-00-710-013C, ALL OPS CK OK, ACFT OK FOR SERVICE.