SDR ASAA2019021028135

Service difficulty report · Charger · Boeing 737890

Difficulty date: February 10, 2019
Submitted: February 12, 2019
Operation: Air carrier
Aircraft: N529AS
Make and model: Boeing 737890
Aircraft serial: 35198
Aircraft time: 34,520 hours, 10,352 cycles
System (JASC): 2432 · Battery/Charger System
Part: Charger
Part number: 893003
Part serial: C8439
Condition: Failed
Location: Main Battery
Part time: 34,518 hours, 10,351 cycles
Stage of operation: TX
How discovered: O
Nature of condition: J
Precautionary procedure: D

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

What was found

AFTER ENGINE START, ELEC. LIGHT ON OVH PANEL ILLUMINATED. GROUNDED - YES. AUX BATTERY CHARGER POPS BREAKER, REMOVED AND REPLACED AUX BATTERY CHARGER IAW 24-31-31-401, OPS CHECK GOOD IAW AMM 24-31-31-501. BATTERIES, MAIN AND AUX WERE DISCONNECTED FOR MAINTENANCE, RE-CONNECTED AND OPS CHECK GOOD IAW AMM 24-31-11-401.