Service difficulty report · Fmc · Boeing 737890

Difficulty date
August 22, 2013
Submitted
August 26, 2013
Operation
Air carrier
Aircraft
N585AS
Make and model
Boeing 737890
Aircraft serial
35683
Aircraft time
23,208 hours, 7,051 cycles
Part
Fmc
Condition
Failed
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

RT FMC HAS FAILED. ACFT GROUNDED. BITE OF FMC-L SHOWED SOFTWARE MISMATCH FAULTS FOR FMC-R FOR THE FOLLOWING SOFTWARE NAV DB, PERF DEFAULTS, ACARS DB, MEDB, SW OPTIONS. THESE FAULTS WERE LOGGED FOR ALL 9 LEGS IN FMC MEMORY. CONFIRMED FMC OPS SOFTWARE 549849-018, INSTALLED IN RT FMC AND PERFORMED CROSSLOAD OF FOLLOWING SOFTWARE FROM FMC-L TO FMC-R IAW MM 34-61-00-470-806, OPC (SW OPTIONS) MODEL/ENGINE DATABASE (MEDB) - BCG014V9. ALSO CROSSLOADED NAV DATA ASA1130901. PERFORMED FMC SOFTWARE CONFIGURATION CHECK IAW MM 34-61-00-750-801. PERFORMED FMCS OPS TEST IAW MM 34-61-00-710-801. ALL TESTS PASS.