What was found
NO FMC PROMPT ON BOTH CDU'S, UNABLE TO INITIALIZE IRU'S. GROUNDED - YES. REINITIATED FMC COMPUTERS. REENTERED IRU POSITIONS. IRU POSITION VERIFIED AND FMC PROMPTS OPERATE NORMALLY, REF AMM 34-21-00.
- Difficulty date
- December 30, 2016
- Submitted
- January 4, 2017
- Operation
- Air carrier
- Aircraft
- N448AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36356
- Aircraft time
- 3,028 hours, 1,016 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Condition
- Malfunctioned
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.