SDR ASAA12511477

Service difficulty report · Fmc · Boeing 737890

Difficulty date: April 28, 2012
Submitted: April 30, 2012
Operation: Air carrier
Aircraft: N516AS
Make and model: Boeing 737890
Aircraft serial: 39044
Aircraft time: 12,674 hours, 4,102 cycles
Engine: Cfmint CFM567B273
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Malfunctioned
Location: Right
Stage of operation: CR
How discovered: O
Nature of condition: N
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 FAILURE VTK FLAG F/O MAP WOULD NOT RESET AT FL380. ACFT GROUNDED. PULLED & RESET BOTH FMC COMPUTOR C/B VTK FLAG CLEARED, OPS NORMAL. PERFORMED FMC FIM TASK 801-34-61, NO CURRENT FAULTS. SYS VERIFIED GOOD. PERFORMED CDS FIM TASK 809-31-63, NO FAULTS.