What was found
AFTER T/O UNABLE TO RET GEAR AS HAND WAS LOCKED IN DWN POS. FOLLOWED FIM TASK 32-31-00-810-885-A UP TO AND INCLUDING STEP 4.B. FOUND LT MLG SHOCK UNDERSERVICED, SERVICED LT MLG STRUT IAW AMM 12-12-32-610-001-C1. WHILE ACCOMPLISHING AMM 32-31-00-710-002-A. FOUND LANDING DOORS AND HANDLE OPERATE CORRECTLY ON LGCIU1. WHEN THE SAME TEST IS DONE ON LGCIU2 THE HANDLE OPERATES BUT DOES NOT GIVE INDICATION NOR POWERS GEAR DOORS HYDRAULICALLY. SLAVED IN KNOWN GOOD GEAR HANDLE IAW AMM 32-31-11/401 & DID NOT CHANGE RESULTS. REINSTALLED ORIGINAL MLG HANDLE IAW AMM 32-31-11/401. SWAPPED LGCIU 2 WITH KNOWN GOOD LGCIU IAW AMM 32-31-71/401 & RESULT REMAINED THE SAME AS WELL. SUSPECT WIRING BTWN LGCIU & GEAR HANDLE OR SOME OTHER PART. THERE IS A NOTE IN TSM 32-31-00-810-885-A PARA 3B STEP (4)(B)3 STATING FOR LGCIU 2, THAT MLG DOORS WILL NOT MOVE BECAUSE THE MLG SYS ISOATION SAFETY VALVE WILL NOT OPS. NO HYDS TO THE GEAR DOORS CHKD LT MLG FRONT & REAR PROX SENSORS IAW AMM 32-31-73-820-002-A. CHKD SERVICEABLE UPDATE FOR INSPECTION GEAR SWING REQ INSPECTION IAW FIM 32-31-00-810-869-A STRUT WAS UNDER SERVICED. ACCOMPLISHED TSM 32-31-00-810-869-A NO ABNORMALITIES FOUND. PERFORMED MLG SWING IAW AMM 32-31-00-720-002-A OPS CHKD GOOD. GEAR HANDLE/ GEAR OPS NORMAL.OPS CHKD GOOD.