SDR ASAA1158725

Service difficulty report · Fmc · Boeing 737890

Difficulty date: January 3, 2011
Submitted: January 6, 2011
Operation: Air carrier
Aircraft: N585AS
Make and model: Boeing 737890
Aircraft serial: 35683
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Inoperative
Stage of operation: CR
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

LEFT FMC CDU: 1& 50 PRIOR TO ARRIVE OGG (FL 360): SELECTED "MENU" ON FMC (PROGRESS PAGE WAS DISPLAYED). FMC CDU SCREEN BLANKED FOR SEVERAL SECONDS. CALL FAIL MESG ILLUMINATED (OFFSET ALREADY ILLUMINATED NORMAL SLOP). IT IS POSSIBLE THAT OTHER MESSAGES APPEARED ON SCREEN. IT APPEARED THAT FMC BEGAN SOME SORT OF BITE TEST HOWEVER RETURNED TO NORMAL INDICATION IN ABOUT 5 TO 10 SECONDS. RIGHT CDU: ALL NORMAL INDICATIONS. PERFORMED FMC BITE TEST PER 34 61 00 810 801, NO FAULTS FOUND.