What was found
EMERGENCY LAND EWR ALT WOULD NOT SPIN UP TO SET ALTITUDE ON MCP FD GAVE ERROENEOUS CMDS DEBRIED PILOT AND HE STATED THAT INFLIGHT THE ALTITUDE SELECTOR KNOB WHEN TURNED NUMBERS WOULDN'T TURN TO THE CORRECT SELECTION. AT GATE SELECTOR KNOB SEEMS TO WORK NORMAL. REFERENCE L/P 8524754, ON APRIL 11 SAME WRITE-UP. "MCP ALTITUDE PRE SELECTOR FAILED TO MOVE UP OR DOWN IN FLIGHT". MCP WAS REPLACED APRIL 12. M&L UPDATE T/S PER FIM 22-02 TASK 22-02 TASK 802. REF MCDP TEST 04-MCP 22- FAULT TREE 829. MCP V/S IS UNRESPONSIVE. PART REMOVED FOR SAME REASON. COMPONENT HAS SAME FAULT HISTORY.NEEDS M90 MCPNIS EWR RECEIVED NEW PANEL AND INSTALLED PER AMM 22-11-02. FOUND NEW PANEL TO BE BAD FROM STOCK, ON IAS/MACH VALUE INDICATION, THE FIRST DIGIT WAS STUCK AT "1", DID NOT MOVE WITH KNOB. WILL REQUIRE ANOTHER MODE CONTROL PANEL. ORIGINAL PANEL RE-INSTALLED. REMOVED AND REPLACED AUTOPILOT MODE CONTROL PANEL REF AMM 22-11-02. OPS CHECK GOOD.