What was found
ELECTRIC TRIM WILL NOT TRIM UP STAB OUT OF TRIM SPEED TRIM FAIL T/S, IAW FIM 27-41-00-810; WDM 27-41-11, WDM 27-41-12. FOUND F/O COLUMN SWITCHING MODULE(M1201) AT FAULT STAB TRIM PITCH UP WORKED, IAW MM 27-41-51. PITCH TRIM UP WORKED CONSISTANTLY, BUT LAND VERIFY FAILED FOR ELEV POS SENSOR MSG 22-11125. REINSTALLED INTERMITTENTLY. REMOVED AND REPLACED F/O COLUMN SWITCHING MODULE ORIGINAL F/O COLUMN SWITCHING MODULE. LAND VERIFY PASSES BUT PITCH UP STILL INTERMITTENT. NEW MODULE BAD FROM STOCK. REQUIRES NEW SWITCHING MODULE(M1201) PART NIS EWR, M1201, IAW AMM 27-41-51-400-801 UP TO STEP 4. REMOVED AND REPLACED F/O CONTROL COLUMN CUTOUT SWITCH MODULE SWITCH, CONTROL OFF 29-2741-9-0007 1224 ON 29-2741-9-0007 3316 ROTABLE PARTS CHANGE WAS INDICATED-TT 1021624 SN OFF 1224 COMPLETED INSTALLATION OF F/O'S COLUMN SWITCHING MODULE, IAW AMM 27-41-51-400-801. ALL OPERATIONS CHECKS GOOD. PERFORMED LAND VERIFY, AS PER AMM 22-11-00. TESTS PASSED A/C RETAINS FULL CAT CAPABILITY. A/C OK TO CONTINUE RII CW ON CAPTS INPUT ROD ADJUSTMENT, OK TO CONTINUE.