What was found
NR 1 FMC CDU WENT BLANK IN FLIGHT, NO OTHER MESSAGES OR ERRORS DISPLAYED ON ND OR CDU. VERIFIED DISCREPANCY. LEFT FMC MCDU INOPERATIVE. CYCLED NR 1 FMC MCDU C/B W/NO HELP. R & R NR 1 FMC MCDU REF 34-61-01. OPS CK NORMAL REF SAME MM.
- Difficulty date
- November 20, 2012
- Submitted
- November 27, 2012
- Operation
- Air carrier
- Aircraft
- N594AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35191
- Aircraft time
- 17,919 hours, 5,577 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Display
- Part number
- 1741010201
- Part serial
- 005557
- Condition
- Inoperative
- Location
- Cockpit
- Part time
- 20,201 hours, 6,122 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- P
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.