Service difficulty report · Battery Pack · Boeing 757251

Difficulty date
April 1, 2016
Submitted
April 4, 2016
Operation
Air carrier
Aircraft
N543US
Make and model
Boeing 757251
Aircraft serial
26490
Aircraft time
59,824 hours, 24,500 cycles
Part
Battery Pack
Condition
Failed
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

THE EMERGENCY LIGHTS FLICKERED ON AND OFF DURING TAKEOFF AND REMAINED ILLUMINATED UNTIL MID CLIMB. DOORS 1 AND 3 LIGHTS STAYED ILLUMINATED UNTIL CRUIZE. MAINTENANCE FOUND AND REPLACED TWO BAD BATTERY PACKS, 1 IN THE FWD GALLEY AND ONE IN THE AFT GALLEY. BOTH CHARGERS WERE ALSO REPLACED. LIGHTS CHECKED OK.