SDR SIMA200811902

Service difficulty report · Control Valve · Emb EMB145LR

Difficulty date: April 24, 2008
Submitted: April 28, 2008
Operation: Air carrier
Aircraft: N638AE
Make and model: Emb EMB145LR
Aircraft serial: 145172
Aircraft time: 19,775 hours, 19,495 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Control Valve
Condition: Malfunctioned
Location: Cabin Temp
Stage of operation: TX
How discovered: O
Nature of condition: B
Precautionary procedure: O

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

What was found

ON FLIGHT 4331, CREW REPORTED SMOKE IN CABIN BEFORE BOARDING WITH APU RUNNING. AIRCRAFT REMOVED FROM SERVICE. FOUND MAIN DISTRIBUTION DUCT OVERHEATED. REMOVED AND REPLACED MAIN DISTRIBUTION DUCT, DUAL TEMP CONTROL VALVE, PACK OVER TEMP SWITCH IAW AMM 21-51-08. OPERATIONAL CHECK GOOD AND NR 8194, AIRCRAFT RETURNED TO SERVICE.

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