SDR ASAA2013062495295

Service difficulty report · Unknown · Boeing 737890

Difficulty date: June 24, 2013
Submitted: June 26, 2013
Operation: Air carrier
Aircraft: N516AS
Make and model: Boeing 737890
Aircraft serial: 39044
Aircraft time: 17,445 hours, 5,451 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Unknown
Condition: Unknown
Location: Fmc Cdu
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: K

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

What was found

INTEROGATED THE FMC CDU FOR ENGINE FAULTS. FOUND FAULT 73-30311, START SWITCH SIGNAL AND BUSS DATA DISAGREE. ON NR 1 ENGINE FLIGHT, LEG 2 ONLY OUT OF 10 LEGS. ACFT GROUNDED. PERFORMED FIM TASK 73-24 / 813. NO DEFECT NOTED, NO HISTORY 90 DAYS.