Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
April 4, 2022
Submitted
April 7, 2022
Operation
Air carrier
Aircraft
N8578Q
Make and model
Boeing 7378H4
Aircraft serial
64349
Aircraft time
12,092 hours, 5,871 cycles
Part
Battery Pack
Condition
Inoperative
Location
Emergency Light
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

EMERGENCY LIGHT ABOVE ROW 17DEF INOP. PREVIOUS T/S IS ALL WRONG. REF WDM 33-51-13-15 PAGE 15 SHEET 2. BATTERY PACK IS LOCATED AT STA 727C +13 WHICH SHOULD BE LOCATED AT SEATS 22 - 23. CHANGE THE LIGHT ASSY. BATT CHARGER M1676, BATTERY & FUSES CHECK GOOD. REPLACED SM516 IAW SWPM 20-30-12. WIRE W4142-0333-16 IS OPEN BETWEEN SM516 & D14700 PIN A, WIRE SEEMS TO GO OPEN AROUND 12 INCHES OF D14700 ABOVE SEAT 18DEF. OK TO CONTINUE IAW MEL 33-15-02. R & R LIGHT IAW AMM 33-51-03 NO HELP. FOUND A OPEN WIRE BETWEEN CONNECTOR D14838 AND SPLICE #SM83 IAW WDW 33-51-14-14. FOUND A BAD FUSE ON BATT CHARGER M1671. R &R'ED EE LIGHT FUSE PER AMM 33-51-06

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