Service difficulty report · Drive Unit · Boeing 737990ER

Difficulty date
July 28, 2019
Submitted
July 30, 2019
Operation
Air carrier
Aircraft
N413AS
Make and model
Boeing 737990ER
Aircraft serial
35205
Aircraft time
25,213 hours, 8,159 cycles
Part
Drive Unit
Part number
6225135822
Part serial
40F47G
Condition
Failed
Location
Weather Radar
Part time
24,969 hours, 8,139 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

WHILE USING WX RADAR IN FLIGHT WXR FAIL ANT AND PWS FAIL ILLUMINATED ON ND. GROUNDED - YES. REMOVED & REPLACED WEATHER RADAR DRIVE UNIT REF AMM 34-43-11. ACCOMPLISHED WEATHER RADAR OPERATIONAL CHECK IAW AMM 34-43-00 OPS CHECK NORMAL.