What was found
FLT NR 917, JFK-ORD, AT FL 380, UPON COMMENCING INITIAL DESCENT ENGINE NR 1 EXPERIENCED A VERY NOTICEABLE COMPRESSOR STALL. "ENG 1 STALL" ECAM APPEARED. QRH/ECAM PROCEDURE APPLIED. ENGINE RECOVERED SUCCESSFULLY. NO ABNORMAL PARAMETERS. NO FURTHER PROBLEMS NOTED. ACCOMPLISHED A320 TSM 71-00-00-810-808 TO INCLUDE ENGINE POWER ASSURANCE TEST AS PER A320 AMM 71-00-00-710-813 ON ENGINE NR 1. NO DEFECTS NOTED. ALL ENGINE PARAMETERS NORMAL. ENGINE OK FOR SERVICE. ACCOMPLISHED BORESCOPE INSPECTION OF NR 1 ENG HPC AS PER A320 AMM 72-00-00-200-016. NO DEFECTS NOTED.