SDR E07A20151207001

Service difficulty report · Modulating Valve · Emb EMB500

Difficulty date: December 3, 2015
Submitted: December 7, 2015
Operation: Air carrier
Aircraft: N665AS
Make and model: Emb EMB500
Aircraft serial: 50000018
Aircraft time: 3,856 hours, 3,234 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Modulating Valve
Part number: 130033011
Condition: Stuck
Location: Ac Bay
Part time: 3,856 hours, 3,234 cycles
Stage of operation: CL
How discovered: O
Nature of condition: B
Precautionary procedure: A

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

What was found

AFTER TAKEOFF, CREW NOTED HOT SMELL & A SMALL BIT OF SMOKE IN THE CABIN. TURNED OFF RT BLEED VLV, SMOKE & HOT SMELL DISSIPATED. DETERMINED RT CABIN TEMP MODULATING VLV WAS STUCK OPEN. INSTALLED NEW VLV, GND RUN & OPERATIONS CHECK WERE SATISFACTORY. ACFT WAS RETURNED TO SERVICE.

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