As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VNAV WOULD NOT ENGAGE AFTER TAKEOFF. FUEL AND ETA INFO DISAPPEARED IN FMC UNTIL LEVEL OFF. VNAV WORKED NORMALLY AFTER LEVEL OFF WHEN FUEL AND ETA INFO REAPPEARED IN FMC. IAW AMM 22-00-01, C/W BITE TEST GROUP NR 35 (DFCS LRU INTERFACE TEST FOR FCC) & NR 49 (LAND VERIFY TEST) AND IAW SMM 34-36-00, C/W HGS SENSOR TEST FOR FCC/AT ALL TESTS PASS.