SDR ASAA2019111851362

Service difficulty report · Fmc · Boeing 737890

Difficulty date: November 15, 2019
Submitted: November 19, 2019
Operation: Air carrier
Aircraft: N531AS
Make and model: Boeing 737890
Aircraft serial: 35199
Aircraft time: 36,875 hours, 10,808 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Malfunctioned
Stage of operation: TX
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

ON GRND POWER TRANSFER TO APU PWR, F/O ND VTK DISPLAYED FOR 45 SECONDS, PWR TRANSFER FROM APU GEN TO ENG GEN, F/O ND DISPLAYED VTK FOR 45 SECONDS, LIGHT EXTINGUISHES, NORMAL OPS. GROUNDED - YES. UPON ARRIVAL TO A/C NO VTK MSG DISPLAYED, C/W B737-800 FIM TASK 34-61 TASK 836 MSG DID NOT REAPPEAR AND ON OTHER DEFECTS NOTED.