What was found
AIR TURNBACK DUE TO A LT FMC FAIL EICAS MESSAGE. REPLACED THE LEFT FLIGHT MANAGEMENT COMPUTER IAW AMM 34-61-01, FMC DATA CROSSLOADED IAW AMM 34-61-00. OPS CHECKED GOOD. OK TO CONTINUE.
- Difficulty date
- April 13, 2018
- Submitted
- April 16, 2018
- Operation
- Air carrier
- Aircraft
- N592HA
- Make and model
- Boeing 7673CB
- Aircraft serial
- 33466
- Aircraft time
- 55,640 hours, 10,347 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Computer
- Part number
- 4052506955
- Part serial
- 87080886
- Condition
- Warning Message
- Location
- Flt Management
- Part time
- 7,560 hours, 1,535 cycles
- Stage of operation
- CR
- 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.