What was found
NR 1 ENGINE ANTI-ICE TAI LIGHT DOES NOT AGREE WITH BLUE LIGHT VALVE POSITION. ACFT GROUNDED. ACCOMPLISHED AN OPS CHECK OF THE NR 1 ENGINE TAI IAW AMM 30-21-00. OPS CHECKED NORMAL.
- Difficulty date
- October 17, 2017
- Submitted
- October 20, 2017
- Operation
- Air carrier
- Aircraft
- N491AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44109
- Aircraft time
- 7,570 hours, 2,579 cycles
- System (JASC)
- 3020 · Air Intake Anti/De-Ice System
- Part
- Warning Light
- Condition
- False Activation
- Location
- Nr 1 Anti-Ice
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.