What was found
MLG NOT UPLOCKED ECAM PROC DID NOT RESOLVE ISSUE. GEAR REPORTED TO HAVE RETRACTED, BUT DID NOT STAY UPLOCKED TO ALLOW GEAR DOORS TO CLOSE. PERFORMED FIM 32-31-00-810-836-A. MLG DOORS OPENED CORRECTLY BUT GEAR DID NOT PERFORM CORRECTLY. PERFORMED CHECK OF THE ACFT WIRING FOR AN OPEN CIRCUIT BETWEEN SELECTOR VALVE (40GA) & LGCIU-1 & LGCIU-2. WIRING OK. REMOVED MLG SELECTOR VALVE MANIFOLD ASSY IAW AMM 32-31-31-000-001-A. INSTALLED A NEW SELECTOR VALVE MANIFOLD ASSY IAW AMM 32-31-31-400-001-A UP TO & INCLUDING STEP 4.A.(19). ACP & VERIFIED INSTALLATION OF MLG SELECTOR VALVE MANIFOLD ASSY AS RII REQUIRED IAW AMM 32-31-31-400-001-A UP TO AND INCLUDING STEP 4.A.(19) & GMM 09-25-05. CONTINUED INSTALLATION OF SELECTOR-VALVE MANIFOLD ASSY IAW AMM 32-31-31-400-001-A UP TO & INCLUDING 4.D.(1). OPS CHECK FAILED, MLG DOORS OPENED & NLG DOORS STAYED CLOSED. BOTH MLG DID NOT RETRACT. VERIFIED & ACCOMP RII INSP REQ FOR MANIFOLD & VALVES ASSY WITH NO DEFECTS. MLG & DOORS EXTEND & RETRACT OPS NORMAL WITH NO LEAKS NOTED IAW AMM 32-31-31-400-001-A.