What was found
FAULT LIGHT ILLUMINATED ON HGS DISPLAY. ACFT GROUNDED. FAULT LIGHT NOT ACTIVE, HGS FLIGHT HISTORY SHOWS FC 80 & 81 WITH NO HISTORY. ACCOMPLISHED HGS SYSTEM TEST, IAW SMM 34-36-00. OPS NORMAL.
- Difficulty date
- July 31, 2016
- Submitted
- August 1, 2016
- Operation
- Air carrier
- Aircraft
- N495AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41728
- Aircraft time
- 1,576 hours, 512 cycles
- System (JASC)
- 3440 · Independent Position Determining System
- Part
- Warning Light
- Condition
- False Activation
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.