What was found
CAPTAIN'S ND "FMC DISAGREE" ON GROUND. GROUNDED-YES. PERFORMED B737-800 FIM 34-61 TASK 835. FOUND MISMATCH BETWEEN FMC NR 2 COWL ANTI VALVE, REF LG PG 60083689. PERFORMED FMC BITE, PER FIM 34-61 TASK 801. OPERATIONS NORMAL.
- Difficulty date
- January 27, 2021
- Submitted
- January 29, 2021
- Operation
- Air carrier
- Aircraft
- N559AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35178
- Aircraft time
- 51,383 hours, 15,197 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Condition
- Fault Message
- Location
- Cowl Anti Valve
- Stage of operation
- TX
- 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.