SDR ASAA2022112940966

Service difficulty report · Display · Boeing 7379

Difficulty date: November 29, 2022
Submitted: November 30, 2022
Operation: Air carrier
Aircraft: N937AK
Make and model: Boeing 7379
Aircraft serial: 44100
Aircraft time: 1,842 hours, 564 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Display
Condition: Malfunctioned
Stage of operation: CR
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

IN CRUISE BOTH INBOARD CDU'S BLANKED W/ VTK ON THE CA SIDE. MCDU/CDU BOTH BLANKED WITH MENU PAGE DISPLAY ALL ITEMS (ACARS, ACMS, SAT, HGS) BUT NO FMC. NO MESSAGE DISPLAYED IN SCRATCH PAD. FMC RETURNED TO NORMAL IN 30-45 SECONDS. GROUNDED - YES. RESET BOTH FMC'S, OPS CHECK GOOD IAW B737-9 FIM TASK 34-61-00-810-918.

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