What was found
WX RADAR PAINTS GROUND IN AUTO. IN ALL FLIGHT PHASES. GROUNDED - YES. REMOVED AND REPLACED ANTENNA DRIVE UNIT REF AMM 34-43-11/401. OPERATIONAL TEST AND SYSTEM TEST PASS REF AMM 34-43-00/501.
- Difficulty date
- July 22, 2018
- Submitted
- July 25, 2018
- Operation
- Air carrier
- Aircraft
- N413AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 35205
- Aircraft time
- 21,181 hours, 6,915 cycles
- System (JASC)
- 3442 · Weather Radar System
- Part
- Drive Unit
- Part number
- 6225135822
- Part serial
- 414XR8
- Condition
- Failed
- Location
- Radome
- Part time
- 16,223 hours, 4,779 cycles
- Stage of operation
- CR
- 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.