What was found
1B FILTER SPOILER AND 1B SPOILERONS POSTED ON DESCENT AS SPOILER LEVER WAS SELECTED AOM VOL 1, EMERGENCY AMBER NORMAL PROCEDURES COMPLIED WITH, EMERGENCY WAS DECLARED. INTERROGATED MDC, FOUND MDC MESSAGE, SPOILERS LT INBD MFS PCU MPE33 FAILED, PCU JAM EQUATION ID: B1-007905. PERFORM SPOST1 RESET. PERFORMED OPS CHECK IAW ETN-CR-27-093. OPS CHECK GOOD. R & R LT INBD MFS PCU MFSPCU IN 10 DAYS. R & R SPOILER PCU IAW AMM 27-62-01. OPS CHECK GOOD. LEAK CHECK GOOD. TDMI RESTORED.