Service difficulty report · Knob · Boeing 737990ER

Difficulty date
November 30, 2020
Submitted
December 3, 2020
Operation
Air carrier
Aircraft
N403AS
Make and model
Boeing 737990ER
Aircraft serial
41730
Aircraft time
30,559 hours, 9,881 cycles
Part
Knob
Part number
UNKNOWN
Condition
Seized
Location
Wx Radar Unit
Stage of operation
NR
How discovered
9
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

CAPTAIN'S WEATHER RADAR TILT + GAIN KNOB IS SEIZED TOGETHER (I.E. INNER + OUTER KNOBS ARE STUCK TOGETHER). GROUNDED-YES. CLEANED CAPT WEATHER RADAR TILT & GAIN KNOB. KNOB TURNS NORMAL WITH NO DEFECTS NOTED. A/C OK FOR SERVICE.