Service difficulty report · Battery Pack · Boeing 747451

Difficulty date
July 2, 2017
Submitted
July 3, 2017
Operation
Air carrier
Aircraft
N669US
Make and model
Boeing 747451
Aircraft serial
24224
Aircraft time
113,424 hours, 13,736 cycles
Part
Battery Pack
Condition
Inoperative
Location
Emergency Lights
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

DURING INSPECTION, FOUND EMERGENCY LIGHT OUT AT POSITION 77-79. MAINTENANCE REPLACED THE BATTERY, FUNCTIONAL CHECKED NORMAL IAW AMM 51.