Service difficulty report · Computer · Boeing 747422

Difficulty date
May 24, 2013
Submitted
June 3, 2013
Operation
Air carrier
Aircraft
N177UA
Make and model
Boeing 747422
Aircraft serial
24384
Aircraft time
93,926 hours, 11,363 cycles
Engine
Pwa PW4056
Part
Computer
Part number
8221261101
Part serial
238
Condition
Faulty
Location
Autopilot Sys
Stage of operation
NR
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

"NO LAND 3", EICAS STATUS MESSAGE DISPLAYED. DEGRADATION IN AUTOLAND SYS (NOT LATCHED). REPLACED RT FCC IAW AMM. SYS CHECKS GOOD. SYS NEEDS CAT111.