SDR CALA2017051501431

Service difficulty report · Circuit Breaker · Airbus A320232

Difficulty date: May 15, 2017
Submitted: May 15, 2017
Operation: Air carrier
Aircraft: N428UA
Make and model: Airbus A320232
Aircraft serial: 523
Aircraft time: 73,398 hours, 28,048 cycles
System (JASC): 2450 · AC Power Distribution System
Part: Circuit Breaker
Condition: Tripped
Location: Ess Buss
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

DC ESS BUSS SHED AT ROTATION. CIRCUIT BREAKER TRIPPED, LT ELEC BAY. EMERGENCY DECLARED. TROUBLESHOT IAW TSM 24-60-810-810A, IAW AMM 20-16-11, FOUND THE CIRCUIT BREAKER 1PH ON 10 6VU TRIPPED. RESET SAME TESTED ESS BUSS WITH NO FAULTS. OK FOR SERVICE.

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