What was found
F/O MCDU SCREEN BLANKED WITH NO OTHER MESSAGES, CAME BACK ON AFTER SOME BIT, TEST AUTOMATICALLY PERFORMED. NO LOSS OF DATA OR LNAV/VNAV @ FL330 80 MILES SE OF AYZOL. GROUNDED - YES. UNIT BITE TEST GOOD. NO HISTORY.
- Difficulty date
- August 26, 2022
- Submitted
- August 29, 2022
- Operation
- Air carrier
- Aircraft
- N428AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 23,716 hours, 7,438 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Cdu
- Part number
- UNKNOWN
- Condition
- Failed
- Location
- Unknown
- Stage of operation
- NR
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.