What was found
BOTH FMC'S DROPPED OFF LINE. TIMED OUT WITHIN SECONDS OF EACH OTHER.(<P>SWAPPED FMC-L AND FMC-R PER AMM 34-61-01/401. PERFORMED FMC-L AND FMC-R GROUND TEST PER AMM 34-61-00/501. ALL TEST PASSED. OPS CHECK NORMAL.</P>)
- Difficulty date
- May 19, 2019
- Submitted
- May 21, 2019
- Operation
- Air carrier
- Aircraft
- N486MC
- Make and model
- Boeing 74745EF
- Aircraft serial
- 30608
- Aircraft time
- 83,618 hours, 15,196 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Unknown
- Condition
- Malfunctioned
- Location
- Cockpit
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.