Service difficulty report · Control Valve · Lear 45LEAR

Difficulty date
December 15, 2017
Submitted
December 19, 2017
Operation
Air carrier
Aircraft
N438FX
Make and model
Lear 45LEAR
Aircraft serial
333
Aircraft time
7,815 hours, 5,867 cycles
Part
Control Valve
Condition
Malfunctioned
Location
Cabin Temp
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

ATB AFTER RECEIVING CABIN DUCT OVER-TEMP DURING CLIMB FOLLOWED BY SMOKE ENTERING THE CABIN WHEN ENGINE POWER WAS INCREASED. PERFORMED OVER-TEMP CHECKLIST AND SMOKE CLEARED. AIRCRAFT LANDED WITHOUT INCIDENT. REPLACED SUSPECT CABIN TEMP CONTROL VALVE AND INOP CABIN TEMP SENSOR/FAN. PERFORMED ENGINE GROUND RUNS TO TAKE OFF POWER WITH ENGINE BLEEDS ON AND HEAT IN FULL HOT FOR 10 MINUTES WITH NO CAS MESSAGES. NO SMOKE IN CABIN. OPS CHECK GOOD.