SDR ASAA2018070725302

Service difficulty report · Unknown · Boeing 737990ER

Difficulty date: July 7, 2018
Submitted: July 9, 2018
Operation: Air carrier
Aircraft: N440AS
Make and model: Boeing 737990ER
Aircraft serial: 41705
Aircraft time: 18,870 hours, 6,288 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Unknown
Condition: Malfunctioned
Location: Fmc
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: K

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

What was found

IN CRZ FLIGHT FLT 350 AT 2215Z VTK LIGHT ILLUMINATED F/O SIDE MAP DISPLAY. ALSO LDG ALT FLAG ON F/O SIDE WAS ILLUMINATED. BOTH LIGHT STAYED ON FOR APPX 10 SECOND. THE LDG ALT FLAG ON F/O SIDE. LIGHT EXT AFTER 10 SECOND NORMAL. GROUNDED - YES. PERFORMED FMCS BITE REF FIM 34-61-00-810-801. NO CURRENT FAULTS. FLT LEG 1 HAD FAULT FOR RT FMC. PERFORMED FIM 34-61-00-810-836. RT FMC OPS NML.