Service difficulty report · Computer · Boeing 737990ER

Difficulty date
August 8, 2017
Submitted
August 10, 2017
Operation
Air carrier
Aircraft
N434AS
Make and model
Boeing 737990ER
Aircraft serial
61620
Aircraft time
5,673 hours, 1,826 cycles
Part
Computer
Part number
8221604102
Part serial
47YHCN
Condition
Failed
Location
Flt Control
Part time
5,658 hours, 1,821 cycles
Stage of operation
NR
How discovered
V
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

CAPTAIN'S FD INOPERATIVE, SPEED TRIM FAIL, AND MACH TRIM FAIL LIGHTS ILLUMINATED ON RECALL. EXTINGUISHED DURING RESET. ACFT GROUNDED. REPLACED FCC A IAW AMM 22-11-33-400-801. COMPLIED WITH IAW AMM 22-11-33/401 REPLACEMENT TEST NR 35. RAN LAND VERIFY IAW AMM 22-11-00/201 NR 49. OPS CHECKED NORMAL.