Service difficulty report · Drive Unit · Boeing 737890

Difficulty date
January 8, 2020
Submitted
January 10, 2020
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
51,818 hours, 15,123 cycles
Part
Drive Unit
Part number
6225135822
Part serial
40CL37
Condition
Faulty
Location
Weather Radar
Part time
22,873 hours, 7,462 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.

What was found

RADAR PAINTS BAND OF CLUTTER BETWEEN 30-50 MILES IN AUTO. GROUNDED - YES. REMOVED AND REPLACED WEATHER RADAR R/T IAW B737-800 AMM 34-43-41, AND REMOVED AND REPLACED WEATHER RADAR ANTENNA DRIVE UNIT IAW AMM 34-43-11. OPS CKS GOOD IAW AMM 34-43-00.