Service difficulty report · Control Unit · Boeing 777223

Difficulty date
December 24, 2019
Submitted
December 27, 2019
Operation
Air carrier
Aircraft
N799AN
Make and model
Boeing 777223
Aircraft serial
30258
Aircraft time
75,126 hours, 9,511 cycles
Part
Control Unit
Part number
8220314101
Part serial
682
Condition
Failed
Location
Acars
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

AIRCRAFT WAS GROUNDED: FLIGHT RETURNED TO DFW ACCOUNT ON ACCOUNT OF ACARS AND SATCOM FAULT. MAINTENANCE REMOVED AND REPLACED SDU IAW AMM 23-15-10. OPS CHECKS GOOD.