What was found
SPEED TRIM FAIL LIGHT ON RECALL. GROUNDED - YES. PERFORMED DFCS BITE IAW B737-9 AMM 22-11-00-740-801 GOT FAULT CODE CHANNEL A' 22-11186. PERFORMED B737-9 FIM TASK 22-11-00-810-C61, ALL LRU TEST PASSED. SPEED TRIM FAIL LIGHT STAYED ILLUMINATED, REMOVED FCC FROM LOCK AND REINSTALLED, SPEED TRIM FAIL LIGHT EXTINGUISHED. PERFORMED FLIGHT CONTROL COMPUTER INSTALLATION TEST IAW AMM 22-11-33-400-801, OPS CHECK GOOD.