- Difficulty date
- January 8, 2019
- Submitted
- January 11, 2019
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35688
- Aircraft time
- 40,565 hours, 12,358 cycles
- Part
- Drive Unit
- Part number
- 6225135822
- Part serial
- 40CL37
- Condition
- Defective
- Location
- Nose Radome
- Part time
- 22,324 hours, 7,269 cycles
- 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.
What was found
WXR RADAR INOP. GROUNDED - YES. REVERSED MEL PROCEDURES, RESET (1) C/B. CONFIRMED GRINDING NOISE. OPENED AND TAGGED (1) C/B. REMOVED AND REPLACED WXR DRIVE UNIT REF AMM 34-43-11. RESET (1) C/B. OPS TEST NORMAL. ETOPS GROUND VERIFICATION GOOD.