Service difficulty report · Selector Knob · Boeing 737890

Difficulty date
May 26, 2014
Submitted
May 30, 2014
Operation
Air carrier
Aircraft
N513AS
Make and model
Boeing 737890
Aircraft serial
35192
Aircraft time
21,762 hours, 6,678 cycles
Part
Selector Knob
Condition
Malfunctioned
Location
Air Temp
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

AIR TEMP SELECTOR SWITCH GIVES ERRATIC INDICATIONS WITH COCKPIT SELECTED. OTHER POSITIONS NORMAL. KNOB IS VERY LOOSE. ACFT GROUNDED.