What was found
UNABLE TO DOWNLOAD DFDR DATA WITH A HAND HELD DOWNLOADER. REPLACED DFDR AND FOUND ULB EXPIRED DATE TO SHORT IAW AMM 31-31-01-002-001 & 31-31-01-404-004, REV 89. REPLACED ULB AND CONDITION CHECKED NORMAL IAW AMM 31-31-09-002-001 & 31-31-09-402-015, REV 89. PERFORMED ULB OPS TEST AND THE RESULTS WAS SATISFACTORY IAW AMM 31-31-09-702-020, REV 89.PERFORMED GND TEST PER DFDR AND RESULTS SATISFACTORY IAW AMM 31-31-00-745-090, REV 89 .