What was found
ELEVATOR FEEL DIFFERENTIAL LIGHT ON BEFORE TAKE OFF. NO DIFFERENCE IN HYD PRESSURE. PERFORMED FIM 27-31 TASK 803, INITIAL EVALUATION, AND FAULT ISOLATION STEP D (1) OMF EXISTING FAULTS SHOWS NO RELATED MSG, FEEL DIFFERENTIAL LIGHT REMAINS ON. CHECKED ELEVATOR FEEL COMPUTER AT CONNECTORS D14122 & D22303 BOTH CHECKED GOOD IAW SSM 27-31-37-101, AND FIM 27-31 TASK 803. BUT SUSPECT ELEVATOR FEEL COMPUTER HAS AN INTERMITTANT INTERNAL PROBLEM. REMOVED AND INSTALLED A NEW ELEVATOR FEEL COMPUTER UP TO & INCLUDING STEP 3.G.(6)(K). WORK PERFORMED IN REVENUE WITH AMM 27-31-37. REFERENCE LOG PAGE #8247443 FOR RIG PIN REMOVAL. INSTALLED ELEVATOR FEEL COMPUTER. OPS CHECKS GOOD IAW AMM 27-31-37-400-801.