SDR ASAA2014080808784

Service difficulty report · Circuit Breaker · Boeing 737890

Difficulty date: August 8, 2014
Submitted: August 12, 2014
Operation: Air carrier
Aircraft: N529AS
Make and model: Boeing 737890
Aircraft serial: 35198
Aircraft time: 17,205 hours, 5,236 cycles
System (JASC): 2432 · Battery/Charger System
Part: Circuit Breaker
Condition: Malfunctioned
Location: Battery
Stage of operation: NR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

DURING FLIGHT, CIRCUIT BREAKER FOR BATTERY STBY SWITCH, POS INDICATION, RT 28 VOLT DC AT B5, IS OUT. ACFT GROUNDED. RESET BATTERY, STBY, SWITCH POS IND CIRCUIT BREAKER IAW AMM 20-60-01. CIRCUIT BREAKER RESET PROCESS. PERFORMED SPCU INSTALLATION TEST IAW AMM 24-34-11-400-801, OPS CHECKED GOOD.