What was found
DUAL FMC FAILURE AFTER LANDING. FMCS RECOVERED AFTER A FEW SECONDS. GROUNDED - YES. PERFORMED FMCS BITE REF B737-900 FIM 34-61 TASK 801 IN FLIGHT FAULTS ON L FMC FOUND "PGM FAULT I" AND ON R FMC FOUND "PGM FAULT I" REF FIM 34-61 TASK 807 FMC L+R AUTOMATICALLY RESTORED NO C/B RESET REQUIRED. BOTH FAULTS WERE INTERMITTENT. PGM FAULT NOT ACTIVE ON L+R FMC'S. SENSORS TEST OK. VERIFIED FMC SOFTWARE REF B737-900 AMM 34-61-00-750-801 AND B737-900 AIPC SECTION 34-61. PER FIM 34-61 TASK 807 REQUIRES NO MTX ACTION FAULTS WERE INTERMITTENT.