What was found
OP CHECK OF ACE MONITORING FUNCTION PER 3SV FAILED. REPLACED L1 ACE, NO HELP. SWAPPED L1 AND L2 ACE, LRU TESTS PASSED, ACE MONITOR TEST PASSED.
- Difficulty date
- April 4, 2012
- Submitted
- May 25, 2012
- Operation
- Air carrier
- Aircraft
- N781UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26945
- Aircraft time
- 64,321 hours, 11,324 cycles
- Engine
- Pwa PW4077
- System (JASC)
- 2700 · Flight Control System
- Part
- Control Unit
- Part number
- 4885501002
- Part serial
- 14815838
- Condition
- No Test
- Location
- Flt Controls
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.