What was found
BOTH FMC'S FAILED MOMENTARILY THEN RECOVERED (CONCURRENT WITH HITTING SEND ON A CPDLC MSG) CPDLC DATA LINK FAILED AND RECOVERED AT THE SAME TIME. GROUNDED - YES. BOTH FMC'S AND CPDLC OPS CHECK GOOD.
- Difficulty date
- March 26, 2023
- Submitted
- March 27, 2023
- Operation
- Air carrier
- Aircraft
- N423AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 35206
- Aircraft time
- 36,116 hours, 11,465 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- NR
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.