Service difficulty report · Battery · Boeing 747412

Difficulty date
January 19, 2026
Submitted
January 26, 2026
Operation
Air carrier
Aircraft
N756CA
Make and model
Boeing 747412
Aircraft serial
26547
Aircraft time
99,515 hours, 16,160 cycles
Engine
Pwa PW4056
Part
Battery
Part number
20131A
Condition
Inoperative
Location
Zone 200
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 A-CHECK AT RKSI, WHILE ACCOMPLISHING T/C 33-050-01-01, FOUND 11 EACH EMERGENCY LIGHT INOPERATIVE. BATTERY ASSY P/N: 2013-1A WAS REPLACED AND DOCUMENTED ON SHARP TECHNICS K W.O. MNT004216 / NR-0013. OPERATIONAL CHECK SATISFACTORY.