Service difficulty report · Computer · Boeing 737890

Difficulty date
July 3, 2014
Submitted
July 8, 2014
Operation
Air carrier
Aircraft
N517AS
Make and model
Boeing 737890
Aircraft serial
35197
Aircraft time
21,314 hours, 6,410 cycles
Part
Computer
Part number
8221604101
Part serial
174Y6C
Condition
Failed
Location
Flt Control
Part time
22,693 hours, 6,942 cycles
Stage of operation
AP
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

ONLY "B" AUTOPILOT DISENGAGED TWICE ON THE APPROACH. ACFT GROUNDED. FCC B LOGGED 22-11082 NR 2 SMYD DATA INVALID. ACCOMPLISHED FIM 22-15, TASK 801. WIRING CHECKS BETWEEN FCC B AND NR 2 SMYD GOOD. REPLACED FCCB REF MM 22-11-33, OPS CHECK NORMAL. REPLACED NR 2 SMYD, REF MM 27-32-42-400-801. NR 2 SYMD OPS NORMAL REF MM 27-32-42.