SDR SWIA201333029

Service difficulty report · Controller · Emb EMB120ER

Difficulty date: March 20, 2013
Submitted: March 22, 2013
Operation: Air carrier
Aircraft: N565SW
Make and model: Emb EMB120ER
Aircraft serial: 120340
Aircraft time: 30,755 hours, 42,259 cycles
System (JASC): 2131 · Cabin Pressure Controller
Part: Controller
Condition: Failed
Location: Cabin Pressure
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: G

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

What was found

RAPID HARD PRESSURE BUMPS WITH AUTO PRESSURIZATION, SWITCHED TO MANUAL MODE, CABIN KEPT WANTING TO DUMP. MASKS DEPLOYED IN CABIN. (FLT 7407) REPLACED THE ELECTRONIC CONTROLLER IAW AMM, RESTOWED MASKS. P/N 22201T011400 S/N ON 434 S/N OFF 488.

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