What was found
DURING PRE-FLIGHT, RECEIVED "FMC DISAGREE" MSG ON CDU. GROUNDED - YES. PERFORMED FMC DISAGREE QRH CHECKLIST. FMC DISAGREE MESSAGE DID NOT APPEAR. RE-PERFORMED FMC PREFLIGHT PER THE QRH. *INFO ONLY WRITE-UP PER QRH*.
- Difficulty date
- December 21, 2018
- Submitted
- December 27, 2018
- Operation
- Air carrier
- Aircraft
- N440AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41705
- Aircraft time
- 20,644 hours, 6,821 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Condition
- Malfunctioned
- Stage of operation
- TX
- How discovered
- 9
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.