Service difficulty report · Knob · Boeing 737990ER

Difficulty date
December 6, 2017
Submitted
December 7, 2017
Operation
Air carrier
Aircraft
N486AS
Make and model
Boeing 737990ER
Aircraft serial
44107
Aircraft time
8,943 hours, 2,996 cycles
Part
Knob
Condition
Loose
Location
Control Module
Part time
8,935 hours, 2,993 cycles
Stage of operation
NR
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

TEMP INDICATION SELECTOR ON TEMP CONTROL MODULE IS LOOSE. GROUNDED - YES. UNABLE TO SECURE SWITCH. REMOVED AND REPLACED TEMP CONTROL MODULE REF B737-900 AMM 21-61-15, OPS CHECK NORMAL.