SDR UALA2011032801482

Service difficulty report · Relay · Boeing 757222

Difficulty date: March 27, 2011
Submitted: April 13, 2011
Operation: Air carrier
Aircraft: N569UA
Make and model: Boeing 757222
Aircraft serial: 26677
Aircraft time: 61,072 hours, 22,703 cycles
Engine: Pwa PW2037
System (JASC): 2432 · Battery/Charger System
Part: Relay
Condition: Faulted
Location: Master Battery
Stage of operation: NR
How discovered: 9
Nature of condition: J
Precautionary procedure: O

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

What was found

MAIN BATTERY CHARGER MESSAGE, SUSPECT RIGHT BUS NOT POWERED. REPLACED MAIN SHIP BATTERY AND MAIN BATTERY CHARGER, NO HELP. REPLACED MAIN BATTERY CHARGER DISABLE RELAY K115, NO HELP. PER FIM 24-31-00 P106 PAGE BLOCK 7. FOUND A1-90VAC, B1-77VAC, C1-115VAC. TRACED BACK TO RELAY K102 IN THE P34 PANEL AS BAD, REPLACED K102 RELAY, MESSAGE CLEARED. CHECKED GOOD.