Service difficulty report · Unknown · Boeing 737990ER

Difficulty date
April 23, 2017
Submitted
April 27, 2017
Operation
Air carrier
Aircraft
N403AS
Make and model
Boeing 737990ER
Aircraft serial
41730
Aircraft time
17,919 hours, 5,867 cycles
Part
Unknown
Condition
Malfunctioned
Location
Weather Radar
Stage of operation
DE
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

RADAR TILT IN AUTO DID NOT WORK AS EXPECTED DURING DESCENT ON BOTH SIDES (DID NOT TILT DOWN). MANUAL MODE WORKED NORMALLY. GROUNDED - YES. ACCOMPLISHED FIM 34-43-00-810-801 WXR BITE TEST. ACCOMPLISHED AMM 34-43-00-710-802-001 WXR OPS TEST AND AMM 34-43-00-730-802-001 WXR SYSTEM TEST. COULD NOT DUPLICATE FAULT. OPS TESTS NORMAL.