What was found
EMERGENCY DECLARED. RETURNED TO DEPARTURE DUE TO BOTH AUTO PILOTS AND NAVIGATIONAL AIDS FAILED. LANDING UNEVENTFUL. REMOVED AND REPLACED LEFT FLIGHT MANAGEMENT COMPUTER IAW AMM 34-61-02. OPS CHECKED GOOD. AIRCRAFT WAS GROUNDED.
- Difficulty date
- September 6, 2017
- Submitted
- September 7, 2017
- Operation
- Air carrier
- Aircraft
- N936NN
- Make and model
- Boeing 737823
- Aircraft serial
- 31176
- Aircraft time
- 13,016 hours, 5,226 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Part number
- 1762000101
- Part serial
- 009385
- Condition
- Failed
- Location
- Left
- Part time
- 3,860 hours, 1,602 cycles
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- G
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.