What was found
AFTER LIFTOFF, MLG LEVER DOWNLOCK DOES NOT RELEASE FOR A FEW SECONDS.RELEASE ON 2ND/3RD. PERFORMED LGCIU BITE TEST IAW AMM 31-32-00. BITE TESTED GOOD. NO FAULT. NO HISTORY. PER TSM 32-31-00-810-885-A, PERFORMED FUNCTIONAL TEST OF NORMAL RETRACTION & EXTENSION OF MLG IAW AMM 32-31-00-720-002-A, GEAR LEVER DOES NOT MOVE. REPLACED THE CONTROL LEVER IAW AMM 32-31-11 UP TO & INCLUDING STEP 4.B OF THE INSTALLATION. ATTEMPTED TO SWING GEAR IAW AMM 32-31-00-720-002-A, NO HELP. COMPLETED FUNCTIONAL TEST OF NORMAL EXTENSION & RETRACTION OF MLG SEVERAL TIMES. ALL INDICATION & OPS CHECKS OF MLG GOOD IAW AMM 32-31-00-720-002-A.