What was found
LGCIU FAULT. ON APPCH L/G DID NOT EXTEND ON FIRST ATTEMPT. HAS HISTORY. ACFT IS UP ON JACKS T-S'ING. NEED TO REPLACE PRIORITY VALVE. PRIORITY VALVE REPLACED. ACCOMPLISHED SUCCESSFUL LEAK CHECK. CYCLED GEAR SEVERAL TIMES, OPS OK. NO MESSAGES. ALSO CK'D FREE FALL EXTENSION PRECAUTIONARY. REPLACED BSCU. R & R NLG OPENING 2630G M SAFETY VALVE. WHILE ACFT ON JACKS ALL DOORS AND GEAR OPERATED NORMALLY WITH HYD POWER. REPLACED GREEN SYS LANDING GEAR SAFETY VALVE. 49 GA. VALVE REQUIRES OPS CK. T/S FOUND FAULT WITH NR 1 LGCIU, AND NLG DOOR ACT. REPLACED NR 1 LGCIU, CYCLED GEAR 10 TIMES NO FAULTS, ACP'D MANUAL EXTENSION 6 TIMES, EACH TIME SYS OPERATED NORMAL. REPLACED NLG DOOR ACTUATING CYLINDER.