Service difficulty report · Battery Pack · Boeing 747451

Difficulty date
June 26, 2017
Submitted
June 29, 2017
Operation
Air carrier
Aircraft
N670US
Make and model
Boeing 747451
Aircraft serial
24225
Aircraft time
113,083 hours, 13,721 cycles
Part
Battery Pack
Condition
Inoperative
Location
Emergency Lights
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 AT UPPER DECK SEAT 73A-75A, AND RIGHT UPPER DECK DOOR EXIT SIGN INOPERATIVE. REPLACED THE BATTERIES FOR M335 AND M312. OPS CHECKED OK IAW AMM 33-51.